Buku Keterangan Peta Satuan Lahan Dan Tanah Lembar Sibolga (0617)

BUKU KETERANGAN PETA SATUAN LAHAN DAN TANAH LEMBAR SIBOLGA (0617) DAN PADANGSIDEMPUAN (0717) SUMATERA EXPLANATORY BOOKLET OF THE LAND UNIT AND SOIL MAP OF THE SIBOLGA (0617) AND PADANGSIDEMPUAN (0717) SHEETS, SUMATRA Oleh/By : D. Subardja, Kartiwa Djuanda, Yayat Hadian, Samdan CD., Yehu Mulyadi, Wahyu Supriatna dan/and Junus Dai. SKALAJSCALE 1 : 250.000

105u

0912/ y '0

0911

PROYEK PERENCANAAN DAN EVALUASI SUMBER DAYA LAHAN PENGELOLAAN DATA BASE TANAH PUSAT PENELITIAN TANAH DAN AGROKLIMAT BADAN PENELITIAN DAN PENGEMBANGAN PERTANIAN LAND RESOURCES EVALUATION AND PLANNING PROJECT SOIL DATA BASE MANAGEMENT CENTRE FOR SOIL AND AGROCLIMATE RESEARCH AGENCY FOR AGRICULTURAL RESEARCH AND DEVELOPMENT 1990

r KEPALA PUSAT PENELITIAN TANAH DAN AGROKLIMAT The Director of the Centre for Soil and Agrociimate Research

DR SURYATNA EFFENDI

Kepala Unit Im piementasi Proyek Head of the Project Implementation Unit

DR M. SUDJADI

Dewan Redaksi Editorial Board

A. Hidayat Junus Dai D. Subardja P. Buurman

Diterbitkan dan dibiayai oleh Bagian Proyek Pengelolaan Data Base Tanah PUSAT PENELITIAN TANAH dan AGROKLIMAT BADAN PENELITIAN dan PENGEMBANGAN PERTANIAN DEPARTEMEN PERTANIAN

Published and financed by The Soil Data Base Management Project CENTRE FOR SOIL and AGROCLIMATE RESEARCH AGENCY for AGRICULTURAL RESEARCH and DEVELOPMENT DEPARTMENT of AGRICULTURE BUKU KETERANGAN PETA SATUAN LAHAN dan TANAH LENBAR SIBOLGA (0617) DAN PADANGSIOENPUAN (0717), SUMATERA Explanatory booklet of the LAND UNIT and SOIL map of the Sibolga (0617) and Padangsidempuan (0717) Sheets, Sumatra Skala/Seal e 1 : 250.000 Oleh/S/: D. Subardja, Junus Dai, Kartiwa Djuanda, Yayat Hadian, Samdan CD, Yehu Mulyadi, Wahyu Supriatna dan/and P. Buurman

Buku Keterangan dan Peta Satuan Lahati dan Tanah yang menyertainya dihasilkan oleh Tim Pengelolaân Data Base Tanah dari Proyek Peren- canaan dan Evaluasi Sumber Daya Lahan, program kerjasama teknis antara Pemerintah Republik Indonesia dan Bank Pembangunan Asia, dilaksanakan oleh Pusat Penelitian Tanah dan Agroklimat (Badan Penelitian dan Pengembangan Pertanian, Departemen Pertanian) dan dikoordihasikan oleh Badan Koordinasi Survei dan Pemetaan Nasional (BAKOSURTANAL). Survei dan pemetaan dilaksanakan oleh Pusat Penelitiari\ Tanah dan Agroklimat bekerjasama dengan konsultan dari HASKONING Royal Dutch Consulting Engineers and Architects. This Explanatory Booklet and the accompanying Land Unit and Soil map have been produced by the Soil Data Base Management Team of the Land Resource Evaluation and Planning Project (LREP, part II), a technical cooperation programme between the Government of the Republic of Indonesia and the Asian 'Development Bank, executed by the Centre for Soil and Agroclimate Research (part of the Agency for Agricultural Research and Development of the Department of Agriculture) and supervised by the National Coordination Agency for Surveys and Mapping (BAKOSURTANAL). The survey and mapping were carried out by the Centre for Soil and Agroclimate Research, in cooperation with the consultants of HASKONING Royal Dutch Consult- ing Engineers and Architects.

PUSAT PENELITIAN TANAH DAN AGROKLIMAT BADAN PENELITIAN DAN PENGENBANGAN PERTANIAN DEPARTENEN PERTANIAN

CENTRE for SOIL and AGROCLIMATE RESEARCH AGENCY for AGRICULTURAL RESEARCH and DEVELOPMENT DEPARTMENT of AGRICULTURE Hak çipta dlllndungl. Tidak sebagianpun darl publlkasi ini dapat direproduksi kembali, disimpan dalam suatu sistem penyimpanan dan penarikan data, atau dipindahkan kedalam bentuk . apun atau dengan alat/cara seperti : elektronik, elektrostatik, pita magnetik, mekanik, fotokopi, direkam atau sejenisnya tanpa izin secara tertulis dari penerbit.

Edisi pertama, 1990.

All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means: electronic, electrostatic, magnetic tape, mechanical, photocopying, recording or otherwise, without permission in writing from the publishers.

First edition, 1990.

Cara merujuk buku ini:

D. Subardja, Junus Dai, Kartiwa Djuanda, Yayat Hadian, Samdan CD., Yehu Mulyadi, Wahyu Supriatna dan P. Buurman, 1990. Buku Keterangan Peta Satuan Lahan dan Tanah lembar Sibolga (0617) dan Padangsidempuan (0717), Sumatera. Pusat Penelitlan Tanah dan Agroklimat. Bogor.

How to cite this book:

D. Subardja, Junus Dai, Kartiwa Djuanda, Yayat' Hadian, Samdan CD., Yehu Mulyadi, Wahyu Supriatna and P. Buurman, 1990. Explanatory booklet of the Land Unit and Soil map of. the Sibolga (0617) and Padangsidempuan (0717) Sheet, Sumatra. Centre for Soil and Agroclimate Research, Bogor.

So ^rcâS;ors;h " ssrdepositorry fodiL'r ^Lf^'J"^ï £~ , ^'" 'Ih """«s° ' **s' reSPeCt Co ri Copyrighmaterials t withi.TerTZTlZn the arrhiv« ^e^JTT^^ PV 9ht o«f th^e originators. For sssjsrsQuestion«: ni feasible« , to* contact the

0617&0717 - ii PENÜNTÜN UNTÜK PEMAKAI USER MANUAL

Buku keterangan ini adaiah penjelasan This booklet is an explanation of the dari Peta Satuan Lahan dan Tanah lem- 1:250,000 scale -Land Unit and Soil map bar Slbolga (0617) dan Padangsidempuan of the Sibolga (0617) and Padangsidem- (0717), Sumatera, skala 1:250.000. puan (0717) mapsheet, Sumatera.

Legenda peta berisikan satuan lahan The legend of the map consists of land yang merupakan satuan geomorfik dan units, which are geomorphic units, dibatasi dengan cara menginterpretasi delineated by interpretation of images foto udara, citra satelit dan cltra such as aerial photographs, satellite Radar. Isi dari tiap satuan lahan imagery and Synthetic Aperture Radar. dlperiksa di lapangan dan kemudian The contents of each of the units is dicatat. Hanya sebagian dari semua in- checked in the field and recorded. formas! ini disajikan dalam peta, Only part of this information can be sedangkan sebagian lagi dlberikan represented in the map; the remainder secara ringkas dalam Buku Keterangan is briefly documented in the present ini; informas! yang lebih lengkap explanatory notes, and more complete dapat tersedia jika dlminta. information is available upon request.

Simbol peta menunjukkan grup Map symbols indicate physiographic fisiografi (huruf besar), tipe batuan group (capital letter), rock type (huruf kecil), dan pembagian lebih (lower case letter), and subdivisions lanjut berdasarkan atas lereng dan according to slope and dissection (in tingkat torehan (pada daerah berlereng sloping and uplifted areas) or to dan angkatan) atau berdasarkan sedimentary/hydro logical environment lingkungan pengendapan/hidrologinya and human influence (in recent al- (pada daerah aluvial resen, gambut dan luvial, peat and marine areas), indi- marin), serta adanya pengaruh manusia cated with numbers. Lower case letters yang ditunjukkan oleh angka. Huruf preceding the physiographic group code kecil yang berada di muka kode grup are used to indicate covers of fisiografi menunjukkan adanya tutupan material with differing composition, dari bahan lain, seperti tutupan abu such as volcanic ash covers on hills volkan pada perbukitan dari batuan of sedimentary rocks, or thin peat on sedimen atau lapisan bahan organik alluvial plain units. tipis pada dataran aluvial.

Grup fisiografi tersebut adaiah: Kubah The physiographic groups are : Peat Gambut, Aluvial, Marin, Teras Marin, Domes, Alluvial, Marine, Marine Ter- Dataran Tuf Masam, Dataran, Tuf Masam race, Acid Tuff Plains, Plains, Toba Toba, Volkan, Karst, Perbukitan, Acid Tuff, Volcanic, Karst, Hill, Pegunungan/Plato dan Aneka Bentuk. Mountain/Plateau and Miscellaneous Grup Dataran Tuf Masam, Tuf Masam Landforms. The Acid Tuff Plain, the Toba, Volkan, Kubah Gambut dan Karst Toba Acid Tuff, the Volcanic, the Peat pembagiannya didasarkan pada tipe Domes and the Karst group are based on batuan atau bahan induk dan morfologi rock type or parent material and yang spesifik yang erat hubungannya specific morphology, with a close link dengan sifat tanah yang spesifik. Grup to specific soil characteristics. The yang lainnya sebagian besar hanya ber- other groups are largely morphologi- dasarkan pada morfologi. cal .

Untuk semua satuan lahan, data keadaan For all land units, data on soils and tanah dan hubungan tanah dengan ben- soil/landscape relations are presented tang alam disaj ikan pada Uraian in the Land Unit Descriptions. These

0617&0717 - ili Satuan Lahan. ! Uraian satuan lahan ini descriptions form an essential part of merupakan bag'ian terpenting dari Buku the Explanatory Notes, because all In- Keterangan ini sebab semua informas! formation that is necessary to yang diperlukan untuk mengevaluasi evaluate a land unit for specific uses setiap satuan lahan untuk penggunaan is listed here. tertentu disajikan disini.

Semua informasi geografik dapat All geographic information is avail- diperoleh dalam format komputer able in computer (digitized) format. (didijitasi). Semua data utama dari All primary soil information (analyzed tanah (dari profil yang dianalisis) profiles) is also computerized and con juga disimpan dalam komputer dan dapat be made available to the user. At a tersedia bagi para pemakai yang memer- later stage, land evaluation software lukan. Fada tahap selanjutnya, which uses the parameters listed in perangkat lunak untuk évaluasi lahan the Land Unit Descriptions will be yang mempergunakan parameter-parameter made available by the Soil Data Base yang ada pada diskripsi satuan lahan Management Proyect (SDBM). akan segera disediakan 'oleh Proyek Pengelolaan Data Base Tanah (PDBT).

Permintaan untuk penilaian Kesesuaian Requests for suitability ratings of Lahan dari tiap satuan lahan untuk the land units for various purposes berbagai keperluan dapat diajukan ke can be submitted to the Centre for Pusat Penelitian Tanah dan Agroklimat, Soil and Agroclimate Research, Bogor. Bogor.

O617&O717 - iv DAFTAR ISI Halaman 1. Pendahuluan 1 1.1. Latar belakang 1 1.2. Konsepsi legenda 1 1.3. Struktur legenda satuan lahan 2 2 . Metodologi 3 2.1. Peta dasar 3 2.2. Interpretasi citra 4 2.3. Survei dan data lapangan 4 2.4. Uraian satuan lahan 5 2.5. Data base dan pengolahan data 6 2.6. Relaibilitas peta 9

3. Lokasi daerah peta dan sumber informasi 10 3.1. Lokasi dan bâtas administras! 10 3.2. Sumber informasi 10

4. Keadaan umum fisik daerah 10 4.1. Geologi 10 4.2. Fisiografi 16 4.3. Hidrologi 21

5. Satuan lahan . . . 22 5.1. Satuan lahan dan tanah 22 5.2. Isi dari uraian satuan lahan 25

6 . Daftar pustaka 27 Daftar Laporan Pemetaan Tanah 28

Daftar Gambar

Gambar 1. Lokasi dan batas administrasi : 7 Gambar 2. Relaibilitas peta 8 Gambar 3. Indeks peta topografi dan jalur terbang potret udara 11 Gambar 4. Indeks citra Radar STAR-1 dan Landsat 12 Gambar 5. Indeks laporan survei dan pemetaan tanah 13 Gambar 6. Peta geologi bagan 14 Gambar 7. Grup fisiografi . . . 17 Gambar 8. Blok diagram dan grup fisiografi 18

Daftar Tabel

Tabel 1. Grup fisiografi 2 Tabel 2. Analisis tanah standar dan tambahan PDBT 5 Tabel 3. Nomor dan nama lembaran peta topografi skala 1:50.000 10

LampIran

Lampiran 1. Daftar susunan trm survei tanah 29 Lampiran 2. Uraian satuan lahan 30

O617&O717 - v CONTENTS Page 2 . Introduction 1 1.1. Background -. 2 1.2. Legend concept 2 1.3. Structure of the land unit legend 2

2. Methodology 3 2.1. Base maps -3 2.2. Image interpretation 4 2.3. Field survey and field data 4 2.4. Land unit description 5 2.5. Data bases and data processing 6 2.6. Map reliability 9

3. Map location and sources of information 10 3.1. Location and administrâtive boundaries 10 3.2. Sources of information 10

4. General physiography of the area 10 4.2. Geology 10 4.2. Physiography 16 4.3. Hydrology 21

5. Land units 22 5.1. Land units and soils 22 5.2. Contents of a land unit description 25

6. References 27 • Soil survey reports 28

List of Figures

Figure 1. Location and administrative boundaries 7 Figure 2. Map reliability ' 8 Figure 3. Index of topographic maps and flight lines of aerial photos .. 11 Figure 4. Index of STAR-1 Radar and Landsat imagery 12 Figure 5. Index of soil survey reports 23 Figure 6. Geological sketch map 14 Figure 7. Physiographic groups 17 Figure 8. Block diagram and physiographic groups 18

List of Tables

Table 1. Physiographic groups. 2 Table 2. Standard and additional SDBM soil analyses 5 Table 3. Numbers and names of 1:50,000 topographic maps 10

Appendix

Appendix 1 : List of the soil survey team 29 Appendix 2: Land unit descriptions 30

0617&0717 - vi 1. PENDAHULÜAN 1. INTRODUCTION

1.1.Latar belakang 1.1.Background

Buku Keterangan dan Peta Satuan Lahan This explanatory booklet and the in- dan Tanah ini merupakan sebagian hasil cluded maps are part of the final akhir survei tanah tinjau Sumatera results of the reconnaissance soil yang dilaksanakan untuk Proyek Peren- survey of Sumatra, which was carried canaan dan Evaluasi Sumber Daya Lahan out for the Land Resources Evaluation dan dlprakarsai tahun 1985 oleh and Planning Project (LREP), initiated Pemerintah Indonesia serta dibiayai in 1985 by the Government of the oleh Bank Pembangunan Asia. Republic of Indonesia and financed by Pelaksanaan survei dilakukan antara the Asian Development Bank. bulan November 1987 dan February 1988 The sheet was' surveyed between Novem- dan antara Desember 1988 dan Maret ber. 1987 and February 1988 and between 1989 oleh Tim Survei Tanah dari Pusat December. 1988 and March 1989, by teams Penelitian Tanah dan Agroklimat, of the Centre for Soil and Agroclimate sedangkan korelasinya dilakukan pada Research. Map correlation was done in bulan Januari 1990. January 1990.

1.2.Konsepsi legenda 1.2.Legend concept

Legenda untuk survei ini didasarkan The legend for this survey is based on pada pendekatan satuan lahan. Pen- the land unit approach. This approach dekatan ini dianggap paling sesuai un- is considered most suitable for this tuk survei ini, sebab pada skala survey, because at a scale of 1:250.000 dengan intensitas pengamatan 1:250,000, with low-density field lapangan yang kurang, semua batas checks, all unit boundaries are ob- satuan dapat ditarik dengan cara meng- tained by image interpretation. The interpretasi citra. Legenda satuan land unit legend allows the delinea- lahan memungkinkan adanya pembatasan tion of mappable units. of any size setiap satuan dengan sebarang ukuran (depending on map scale)/, . it makes use yang masih dapat dipetakan (tergantung of morphological names which are skala peta) dengan memanfaatkan nama- simple and recurrent, it supports an nama morfologl sederhana dan berulang. hierarchical structure, it is an open Pendekatan ini ' menunjang Struktur system that can be amended for use hirarki dan merupakan sistem terbuka anywhere in Indonesia, and it does not sehingga dapat diperbaharui sesuai contain climatic parameters (the dengan penerapannya di Indonesia; climatic parameters are stored in a legenda ini tidak memuat parameter ik- separate data base which can be com- lim (parameter iklim disimpan dalam bined with the land unit data base). data base terpisah dan dapat digabung dengan data base satuan lahan). Selain dari itu, legenda satuan lahan Furthermore, the land unit legend is ini erat hubungannya dengan legenda closely related to previous Indonesian terdahulu di Indonesia mengenai ben- land form, land system and land unit tuk lahan, sistem lahan dan satuan legends (Desaunettes, 1977; RePPProT, lahan (Desaunettes, 1977; RePPProT, 1985, 1988; Kips et al., 1981) without 1985, 1988; Kips et al., 1981) tanpa being confusing. keliru penggunaannya. Satuan Lahan ini diberi batasan berupa A Land Unit is defined here as an area lahan déngan satu atau lebih komponen- of land of which one ör more at- nya mempunyai ciri-ciri khusus dan tributes have special characteristics, merupakan satuan lingkungan dengan and it refers to an environmental sembarang ukuran yang dapat dibätasi unitofanysize that can be delineated. pada peta. Satuan terkecil yang masih The smallest unit that can be

0617&0717 - 1 dap at dibatasi tanpa menghira'ukan delineated on any map, irrespective of skalanya berukuran 2 mm lebarnya bila scale is about 2 mm wide if it is a bentuk memanjang dan kurang lebih 3 linear feature and about 3 to 4 mm s'ampai 4 mm bila berbentuk bulat. Pada across if it is a circular feature. skala 1:250.000, satuan yang membulat At a scale of 1:250,000, a circular dengan diagonal 4 mm meliputi kurang unit of 4 mm across has a surface of lebih 80 ha. nearly 80 ha. Satuan lahan dikelompokkan dalam Land units are grouped together in grup-grup fisiografi dan kadang- Physiographic Croups and, in some kadang dibagi lagi kedalam sub-grup. cases, in Sub-Groups. Untuk informasi lebih lengkap, lihat For more detailed information, see Buurman & Balsem (1990) dan Balsem et Buurman & Balsem (1990) and Balsem et al. (1989) al., (1989)

1.3.Struktur legenda satuan lahan 1.3.Structure of the land unit legend

Semua satuan lahan diberi kode berupa All mapping units are coded by means huruf dan angka/dijit; masing-masing of a sequence of characters and dengan konotasi khusus tergantung digits, each with its specific con- tingkat klasifikasinya. notation which depends on its level in the classification. Contoh: Au.1.1.3 - Dataran aluvial peralihan ke daerah marin, jalur Example: Au.1.1.3 - Alluvial plain aliran bervegetasi campuran. transitional to marine, river belt with mixed vegetation Physiographic Group Grup Fisiografi | Relief magnitude | Relief, ukuran besarnya I I I I Au.1.1.3 —Landform/dissection Au.1.1.3—Bentuk lahan/totehan/vegetasi I | /vegetation i i I. i i Lithology_ Subgroup : morphology Litologi Sub-grup: Morfologi Table 1 lists the Physiographic Groups Tabel 1 menyajikan Grup Fisiografi which have been identified in Sumatra yang diidentifikasi di Sumatera dan and the outer islands. Examples of pulau-pulau di luarnya. Contoh-contoh subdivisions are given for the Peat pembagian lanjut hanya disajikan untuk Dome and Plain groups only. grup Kubah Gambut dan grup Dataran. Table 1 : Physiographic Groups Tabel 1. Grup Fisiografi A. Alluvial A. ALUVIAL B. Marine B. MARIN D. Peat Domes D. KUBAH GAMBUT H. Hilly H. PERBUKITAN I. Acid Tuff Plain* I. DATARAN TUF MASAM* K. Karst K. KARST M. Mountain/Plateau M. PEGUNUNGAN/PLATO P. Plain P. DATARAN

0617&0717 - 2 Pembagian lanjut grup.Kubah Gambut dan Subdivision of the Peat Domes and Dataran adalah sèbagai berikut. Plain groups :

Bentuk wilayah Penorehan Land form Dissection tanpa | none sedikit I slight Idatar- sedang I flat- -1 moderate sangat | strong I ekstrim j extreme

Struktur legenda disusun demikian rupa The legend structure is such, that sehingga lanskap datar, melandai, ter- flat, sloping, dissected, mountainous toreh, bergunung, dan sebagainya de- landscapes, etc., are easily selected ngan mudah dapat dipilih oleh kom- by computer. The structure is directly puter. Struktur ini langsung berkaitan related to agricultural potential of dengan potensi lahan untuk pertanlan. the land.

2. METODOLOGI 2. METHODOLOGY

2.1.Peta dasar 2.1.Base maps

Peta dasar untuk keperluan pencetakan Base maps for the printed Land Unit Peta Satuan Lahan dan Tanah disediakan and Soil map were provided by BAKOSUR- oleh BAKOSURTANAL. Untuk lembar peta TANAL. For the present sheet, the base ini, peta dasar yang digunakan adalah map cons ists of the digitized' dijitasi liputan topografi hidrografi coverages of topography, hydrography, dan kontur lembar Sibolga (0617) dan and contours of the map sheet Sibolga Padangsidempuan (0717) yang dikeluar- (0617) and Padangsidempuan (0.717), kan oleh BAKOSURTANAL, tahun 1989. made available by BAKOSURTANAL (1989).

O617&O717 - 3 2.2.Interprétas1 cltra 2.2.Image interpretation

Survei tinjau ini sebagian besar The surveys are extensively based on dldasarkan pada interprétas! citra dan image interpretation and virtually all batas-batas satuan sesungguhnya unit boundaries are imagery-based. The ditarik berdasarkan citra. Macam citra following imagery was used: yang digunakan adalah sebagai berikut: - citra Radar stereo STAR-I, 1988 - 1:250,000 STAR-1 stereo Radar im- (cetakan diapositif hitam putih). agery, 1988 (black/white diapositive prints). - foto udara hitam/putih skala - 1:100,000 scale black/white aerial 1:100.000, Angkatan. Udara Australia photography, Australian Airforce, 1976. 1976. - LANÖSAT komposit warna (band 4-5-6) - 1:250,000 LANDSAT colour composites skala 1:250.000 tahun 1984/85 yang (bands 4-5-6), 1984/85, obtained diperoleh dari LAPAN. from LAPAN.

2.3.Survei dan data lapangan. 2.3.Field survey and field data

Pelaksanaan survei tinjau dapat dibagi The implementation of the reconnais- dalam beberapa tahapan kerja: sance survey can be split up into a number of essential steps : l.Penelaahan data dan informas! dari 1. perusal of existing maps and reports peta dan laporan tersedia. 2.Interpretasi citra dan penetapan 2. image interpretation and selection daerah kunci of sample/key areas 3. Pengamatan lapangan dan pemasukan 3 . field observations and computer data data ke komputer entry 4.Penyusunan satuan lahan dan 4. preliminary land unit descriptions pemasukan data ke komputer. and computer data entry 5. Analisis contoh tanah 5. soil sample analyses 6.Melengkapi uraian satuan lahan de- 6. completion of land unit descriptions ngan data analisis. with analytical data 7 . Korelasi/verifikasi lapangan 7. correlation/field verification 8. Produksi peta akhir 8. final map production 9.Dijitasi peta dan pemrosesan data 9. map digitizing and other data base base lainnya. operations.

Semua pengamatan di lapangan (pemboran All observât ions in the field dan profil) dicatat, diberi kode dan (augerings and profile pits) were dimasukan sesuai dengan prosedur stan- described, coded and entered according dar PDBT, seperti diuraikan dalam to standard SDBM procedures as Laporan Tehnis PDBT No. 5 (Baisem et described in SDBM Technical Report al.,1988). Kode ini terutama diadap- No. 5 (Balsem et al., 1988). These tasi dari standard FA0 dan USDA (FAO, codes are mainly adapted from standard 1977; SCS, 1978; Gallup, 1978). FAO and USDA codes (FAO, 1977; SCS, 1978; Gallup, 1978).

Contoh tanah yang représentatif Representative soils were analyzed for dianalisis sifat-sifatnya seperti yang the properties listed in Table 2. disaj ikan pada Tabel 2.

0617&0717 - 4 Tabel 2. Analisis tanah standar dan Table 2. Standard and additional SDBM tambahan FDBT. soil analyses.

Analisis Standar Standard Analyses 1. tekstur 1. texture 2. karbon organik 2. organic Carbon 3. KTK NH4OAc pH 7 3. CEC MfiAc pH 7 4. basa dapat ditukarkan dalam NH^OAc 4. exchangeable Bases in NH^OAc 5. Al dalam KC1 IM 5. Al in 1 M KC1 6. kerapatan lindak pF 2,5 6. bulk density at pF 2.5 7. kadar air pF 4,2 7. water content at pF 4.2 8. pH (H20, KC1, 1:2,5) 8. pH (H2O, KCl, 1:2.5) 9. N total 9. total N 10.K tersedia 10.available K 11.P tersedia 11.available P

Analisis tambahan Additional Analyses untuk tanah volkanik: for Volcanic soils: -kemasaman terekstraksi dalam BaCl2- - extractable acidity in BaCl2-TEA TEA (pH 8.2) (pH 8.2) - Al, Fe dan Si terekstraksi oksalat - oxalate extractable Al, Fe and Si - mineralogi pasir - sand mineralogy - retensi fosfat - phosphate retention untuk Oksisol: for Oxisols: - mineralogi pasir - sand mineralogy untuk Spodosol: for Spodosols: - Fe, A1,C terekstraksi pirofosfat - pyrophosphate extractable Fe, Al, C - Fe, Al terekstraksi ditionit - dithionite extractable Fe, Al untuk endapan marin: for marine deposits: - garam terlarut - soluble salts - kadar sulfur - sulphur content - kadar air lapangan (tanah belum - field moisture content (unripe matang) soils) untuk tanah berkapur: for calcareous soils: - kadar karbonat - carbonate content untuk tanah Gambut: for peat soils: - kadar serat - fibre content - kadar abu - ash content - kerapatan lindak - bulk density

2.4. Uraian satuan lahan 2.4.Land unit description

Uraian satuan lahan berupa uraian umum Land Unit descriptions are general yang dibuat untuk setiap satuan peta. descriptions which are made for each Uraian yang dibuat ini merupakan of the mapping units. Such descrip- generalisasi dari beberapa pengamatan. tions are generalizations of point ob- Atribut satuan lahan (lihat bab 5.2) servations. The land unit attributes digunakan untuk evaluasi lahan ybs. (5.2) are used for land evaluation. Struktur uraian satuan lahan The structure of the land unit didasarkan pada cara yang telah descriptions is based on those pub- dipublikasikan oleh RePPProT (1988) lished by RePPProT (1988) with amend- dengan beberapa tambahan. Disamping ments. In addition to the field obser- pengamatan di lapangan dalam vations , the following sources were penyusunan uraian satuan lahan ini,

0617&O717 - 5 juga dipergunakan beberapa informas1 used in the compilation of the land lain terutama dari : unit descriptions: -RePPProT, 1988: Review of Phase I - RePPProT, 1988: Review of Phase I Results, Sumatra. Results, Sumatra -PPPG, 1982: Peta Geologi Lembar - GRDC, 1982: Geologic Map of the Sibolga dan Padangsidempuan, Sibolga and Padangsidempuan Quad- Sumatera, skala 1:250.000. rangle, Sumatra, Scale 1:250 000. - Semua laporan survei yang tersedia - All available survey reports for the dari daerah ybs. (Gambar 5). area (Figure 5).

2.5. Data Base dan Pengolahan Data. 2.5.Data bases and data processing

Seperti disebutkan di atas, semua data As mentioned above, all field- and lapangan dan analisis disimpan dalam analytical data are stored in com- data base. Data base yang utama ialah: puterized data bases. The main data bases are : -pengamatan lapangan (pemboran dan - field observations (auger and pit). penampang tanah). - analytical data -data analisis - land unit descriptions - uraian satuan lahan

Data base pengamatan lapangan berisi The field observations data base con- semua parameter yang dapat diukur di tains all parameters that were lapangan dari setiap tempat peng- measured in the field, for each of the amatan. Yang dideskripsi dan disimpan observations sites. Described and adalah nomor tempat/site, tempat, stored are site number, location, lereng, vegetasi/penggunaan lahan dan slope, vegetation/'landuse and all soil semua sifat-sifat tanah yang diukur di properties that are measured in the lapangan seperti Struktur, porositas, field, such as structure, porosity, tekstur, warna, dll. (lihat Laporan texture, colour etc. (see Technical Teknis PDBT No 5a, Versi 1.1 - Balsem Report No 5, Version 1.1 -Balsem et et al., 1988). al., 1988).

Data base analisis berisi semua hasil The analytical data base contains all analisis kimia, fisika dan mineralogi results of chemical, physical and serta semua data hasil perhitungan mineralogical analys es and all dari analisis ini yang biasanya diper- properties used for fertility ap-' gunakan untuk menilai kesuburan atau praisal or classification, that are klasifikasi tanah (Lihat- Laporan calculated with these analyses (see Teknis No 7 - Buurman, 1990; Laporan Technical Report No 7 - Buurman, 1990; Teknis No 17, Muslihat et al., 1989). and Technical Report No 17 - Muslihat et al., 1989).

Pada data base pengamatan lapangan dan In both the field observations and in data base analisis, data dapat the analytical data base, data can be dikeluarkan dengan cara memanggil/ retrieved by observations number, map- menuliskan nomor pengamatan, nomor sheet, legend unit, administrative lembar peta, satuan pada legenda, ad- area (province, kabupaten), and other ministrasi (kabupaten atau propinsi) areas defined by geographic coor- atau dengan yang lainnya yang diten- dinates . tukan oleh koordinat geografik.

Data base uraian satuan lahan berisi The land unit description data base uraian umum dari tiap satuan peta un- contains the general description of tuk seluruh Pulau Sumatera yang each mapping unit for the whole island dikatalogkan menurut lembar peta. of Sumatra, catalogued by mapsheet.

O617&O717 - 6 GAMBAR1 : LOKASI PETA DAN BATAS ADMINISTRASI FIGURE 1 : LOCATION AND ADMINISTRATIVE BOUNDARIES 2°00TU

2 1°30/LU

1°OO'LU r 88°30'BT 99°00 BT 99°30"BT 10°O0trBT LEGENI Jalan Utama Jalan biasa *" Sungai/Anak sungai I. PROPINSI SUMATERA UTARA II. PROPINSI RIAU Ibu Kota Kabupaten 10 20 30 40Km o E. Kabupaion Bengkalis Ibu Kota Kecamatan* A. Kabupaten Tapanuli Tengah o Pemukiman lain B. Kabupaten Tapanuli Utara F. Kabupaten Kampar Bâtas Propinsi C. Kabupaten Tapanulj Selatan Ba^as Kabupaten Titik tinggi ( m dpi I 0. Kabupaten Labuhan Batu GAMBAR 2 : RELAIBILITASPETA FIGURE 2 : MAP RELIABILITY 2°oo'ur

1°3iyLU

99°00'BT 99°30'BT 100°OOBT 98°30' BT LEGENDA Jalan Utama Tingkat Rfllaibilitai Jalan biata O 10 2,0 30 4,0Knn Sungai/Anak sungai Ibu Kota Kabupaten Ibu Kota Kecamatan Sedang Pemukimanlain Titik tinggi ( m dpi ) Rendsh Uraian umum berasal dari penyeder- The general description is derived by hanaan semua pengamatan pada seluruh generalizing information of all obser- satuan peta, termasuk analisis vations within the mapping unit, in- laboratorium dari profil yang lain. cluding laboratory analyses of Parameter yang dislmpan berisi semua separate profiles. The parameters informasi yang diperlukan untuk stored contain all the information penilaian evaluasi lahan (lihat necessary for land evaluation proce- Laporan Teknis No 13a -Balsem & Buur- dures (see SDBM Technical Report No. man, 1989). Uraian satuan lahan dari 13, - Balsem & Buurman, 1989). The semua satuan peta yang terdapat dalam land unit descriptions of all mapping lembar peta ini disaj ikan pada Lam- units relevant to the present sheet piran 2. are listed in Appendix 2.

2.6.Relaibilitas peta 2.6. Hap reliability

Relaibilitas dari peta tergantung pada The reliability of a map depends on beberapa faktor seperti: kerapatan many such factors as observation den- pengamatan, keragaman tanah, kualitas sity, soil homogenity or complexity, dari citra penginderaan jauh, lokasi quality of the remote sensing imagery, dari titik pengamatan atau daerah the location of sample/key areas^ ac- kunci, ketepatan dari batas tanah curacy of land units and land unit maupun batas satuan lahan, dan boundaries, the quality of the soil kualitas dari surveyor tanah. Tidak surveyor. Not all- of these can be semua dari faktor-faktor ini dapat measured and so they have to be es- diukur dan karena itu harus timated. diperkirakan.

Berdasarkan faktor-faktor tersebut Based on the above factors, but mainly diatas, terutama kerapatan pengamatan, on observation density, three' classes maka dapat diperkirakan mengenai of map reliability have been estab- relaibilitas peta, dan untuk itu lished (Figure 2). dibagi menjadi 3 klas (Gambar 2).

O617&O717 - 9 3. LOKASI DAERAH FETA DAN SUMBER Peta geologi yang digunakan ialah Peta INFORMASI geologi skala 1:250.000 dari Pusat Penelitian dan Pengembangan Geologi 3.1.Lokasi dan Bâtas Administras! Bandung lembar Padangsidempuan (0717) Secara geografik lembar peta Sibolga dan Sibolga (0617) tahun 1982. (0617) dan Padangsidempuan (0717) ter- Foto udara yang dipakai ialah foto letak antara 98°16'20" dan 100°30' udara hitam/putih skala 1:100.000 Bujur Timur dan antara 01° dan 02° (Royal Australian Air Force, 1976) Lintang Utara (Gambar 1). berkualitas rendah sampai sedang Secara administratif lembar peta dengan tutupan awan lk. 10%. Ikhtisar sebagian besar termasuk kedalam jalur terbang dan nomor foto disajikan Propinsi Sumatera Utara yang terdlri pada Gambar 3. Sumber införmasi lain dari Kabupaten Tapanuli Utara, yang dipakai ialah dari Citra Landsat Tapanuli Tengah, Tapanuli Selatan dan dan Radar seperti disajikan dalam Gam- Labuhan Batu, sedangkan sebagian kecil bar 4. masuk Kabupaten Kampar- dan Bengkalis, Beberapa laporan survei tanah ter- Propinsi Riau. da.fr.ulu beserta peta tanahnya telah ditelaah dalam pekerjaan kompilasl dan 3.2.Sumber Informa s i datanya yang memenuhi persyaratan digunakan untuk memperkokoh data base Dalam pelaksanaan survei dan pemetaan tanah daerah yang bersangkutan. Gambar tanah tlngkat tinjau ini sumber infor- 5 menyajikan lokasi daerah survei, masi yang telah digunakan adalah peta sedangkan judul laporan survei dican- topografi, peta geologi, foto udara, tumkan pada Daftar Pustaka. citra landsat, citra Radar serta beberapa peta dan laporan survei ter- 4. KEADAAN UMUM FISIK DAERAH dahulu sebagai nara sumber. Selain peta topografi skala 1:250.000 4.1. Geologi (BAKOSURTANAL , 1986) digunakan pula peta topografi skala 1:50.000 (1975) Formasi geologi di daerah ini termasuk yang diperoleh dari BAKOSURTANAL. Lem- ke dalam Pretersier, Tersler dan baran peta dan nomornya disaj ikan pada Kuarter yang tersusun dari batuan Tabel 3. sedimen, metasedimen/metamorf, intrusi dan batuan volkanik (Gambar 6).

Tabel 3. Nomor dan Nama Lembaran Peta Pretersier Topografi Skala 1:50.000 Batuan sedimen dan metasedimen/ metamorf yang tergolong Pretersier di Sibolua (0617) 31 Daludalu daerah ini terdiri dar j. : formasi Woyla 32 Sibolga 32 Fakantebih (Muw), formasi Tapanuli (Put), formasi 34 Singkuang 33 Bk. Fadanghutabaru Tapanuli anggota batugamping (Putl), 54/63 Sorkam 34 Kualamahato formasi Kuantan (Puku), formasi Kuan- 61 Labuhanangin 41 Bulupayung tan anggota batugamping (Pukul), for- 62 Sibolga 42 Sipirok masi Kluet (Puk) dan formasi Preter- 64 Adionkoting 43 Sarulla sier tidak dibedakan (Mpu, Mpul) For- Padannsidempuan (0717) 44 Sipagimbar masi Woyla yang berumur Jura sampai 11 Sialangbaru 51 Gunungtua Kapur bersusunan batuan volkanik, skis 12 Pintupadang 52 Langgapayung hij au, metatuf, batugamping, batusabak 13 Batangtoru 53 Sipiongot dan pirit. Formasi Tapanuli yang 14 Fadangsidempuan 54 Hutagodang berumur Permokarbon bersusunan meta- 21 Sibuhuan 61 Ujungbatujulu wake, konglomerat, metaarenit dan 22 Ujungbatu 62 Baganbatubaru batusabak, sedangkan formasi Tapanuli 23 Aeksuhat 63 Kotapinang anggota batugamping. yang berumur Kar- 24 Binanga 64 Bagansinembah bon bersusunan meta batugamping. For- masi Kuantan berumur Permokarbon bersusunan batusabak, metaarenitkuarsa,

O617&O717 - 10 GAMBAR 3 : INDEKS PETA TOPOGRAFI DAN JALUR TERBANG POTRËT UDARA FIGURE 3 : INDEX OF TOPOGRAPHIC MAPS AND FLIGHT LINESOF AERIAL PHOTOGRAPHY 2°00XU

99°30'BT •• Jalan Utama Jalan biasa Sungai/Anak sungai Ibu Kota Kabupaten ipu Kota Kecamatan Penjukiman Titik tmggi ( m dpi ) GAMBAR 4 : INDEKS CITRA RADAR STAR -1 DAN LANDSAT FIGURE 4 : INDEX OF STAR - I RADAR AND LANDSAT IMAGERY 2°00XU

3 ^ 1°30-LU e°

1°00'LU 99°30'BT 100°30'BT Jalan Utama Jalan biasa Sungai/Anak sunga Ibu Kota Kabupaten Ibu Kota Kecamatan Pemukiman Titik tinggi ( m d pi ) Liputan Badv 1:250.000 Liputan Citra Undiat STAR-1,0617:1,2,3,4,5 128-681. Landsat GAMBAR 5 : INDEKS LAPORAN SURVEI DAN PEMETAAN TANAH

FIGURE 5 : INDEX OF SOIL SURVEY REPORTS 2

1820 OK. SIBUALBUAl 2 1°30'LU Bat^ryferu „„_ LU8U|,RAy e»

1°0O'LU 98°30-BT 99°00'BT 99°30'BT I0O°O0'BT LEGENDA Jalanbiasa 10 20 30 40Km «•^ Sungai/Anak sungai O Ibu Kota Kabupaten • Ibu Kota Kecamatan o Pemukiman lain Titik tinggi { rrf dpi ) GAMBAR 6 : PETAGEOLOGIBAGAN FIGURE 6 : GEOLOGICAL SKETCH MAP poor

l°30'LU • i

1°00' kuarsit dan wake', sedangkan fórmasi Kelompok Kampar dari formasi Telisa Kuantan anggota 'batugamping yang dan formasi Telisa anggota Sipupus berumur Karbon bersusunan meta- bersusunan batulanau berkarbon sampai batugamping dan filit. Formasi Kluet berkapur, batupasir lanauan dan ser- yang berumur Permokarbon bersusunan pih, napal berkapur dan berpasir de- metaarenit dan argillit seringkali ngan sedikit batugamping. Kelompok ini hornfels. Formasi Pretersier tidak terdapat di sekitar Gunungtua ke arah dibedakan berumur Karbon sampai Kapur Padangsidempuan dan Langgapayung..For- bersusunan metavolkanik, batusabak dan masi Sihapas dan Sihapas anggota Kanan batugamping. Semua formasi ini ter- (Tmsk), yang berumur Miosin Awal sam- dapat di bagian tengah, utara dan pai Miosin Tengah bersusunan selatan peta dan setempat-setempat batupasirkuarsa, serpih berkarbon, terdapat di sekitar Sibolga. batulanau dan konglomerat terdapat di Batuan intrusi yang tergolong Preter- sekitar Sibuhuan ke arah baratlaut dan sier di daerah ini termasuk ke dalam menyebar di sekitar Gunungtua dan formasi kompleks granit Sibolga yang Langgapayung. berumur Perem, susunan batuannya Batuan volkanik yang tergolong Tersier didominasi oleh granodiorit, granit di daerah ini terdiri dari formasi dan diorit. Formasi ini terdapat di Musala (Tmvm), formasi Pinapan (Tmvp), sekitar Sibolga dan meluas ke sebelah formasi Toru (Tmvo), formasi Angkola utara. (Tmvak) dan formasi Nabilung (Tmvna) berumur Miosen Awal sampai Miosen Tersier Akhir. Formasi Musala bersusunan Batuan sedimen dan metasedimen yang hornblende andesit dan aglomerat ter- tergolong Tersier berumur Miosen Awal dapat di P. Musala. Formasi Pinapan sampai Pleosen di daerah ini termasuk bersusunan andesit hyperbisal, lahar, dalam: formasi Petani (Tup) dan Petani aglomerat dan breksi terdapat di anggota Sayurmatinggi (Tups), kelompok baratlaut lembar peta Sibolga. Formasi Gadis dari formasi Barus (Tmba), Barus Toru bersusunan andesit, aglomerat dan anggota Parlampungan (Tmbap) dan Barus breksi terdapat di sekitar Sarulla. anggota bawah (Tmbal) dan kelompok Formasi Angkola bersusunan andesit, Kampar yang terdiri dari formasi aglomerat dan basalt terdapat di Telisa (Tmt) dan Telisa anggota sekitar Padangsidempuan memanj ang. ke Sipupus (Tmts) serta formasi Sihapas arah baratlaut dan tenggara dan ter- (Tms) dan Sihapas anggota Kanan sebar di dekat pantai Sibolga; formasi (Tmsk). Nabilung bersusunan volkanik inter- Formasi Petani tersusun atas batupasir medier dan aglomerat terdapat di berkarbon terbioturbasikan, batulanau sekitar Dolok Tampulonanjing. dan serpih terdapat di sekitar Batuan intrusi yang tergolong Tersier Gunungtua + 2 km sebelah kiri dan bersusunan Eosen sampai Miosen Akhir kanan S. Barumun, di sebelah utara S. di daerah ini terdiri dari kelompok Sosa dan di sekitar Kotapinang, Timbahan (Tmiti), granodiorit Simatoir sedangkan formasi Petani anggota (Tmisi) dan granodiorit tidak Sayurmatinggi bersusunan batulumpur dibedakan (Tmi), kompleks granit dan batulanau dengan rombakan bahan Uluhalanagodang (Tliu) serta formasi volkanik. Sitaban (Tlls) dan granit Haporas (Tlih). Kelompok Timbahan mengandung Kelompok Gadis yang terdiri dari for- hornblende granodiorit, mik- masi Barus, formasi Barus anggota Par- rogranodiorit dan dioritoid, terdapat lampungan dan formasi Barus anggota di sekitar Sayurmatinggi. Granodiorit Bawah (Tmba, Tmbap, Tmbal) bersusunan Simatoir dan granodiorit tidak batupas'ir halus sampai kasar, batu- dibedakan bersusunan diorit dan sub- lanau dar batupasir pejal dan terdapat volkanik. Formasi Sitaban mengandung di sekitar S. Singkuang memanjang ke mikrodiorit dan andesit porfirit. arah baratlaut dan tenggara, setem- Granit Haporas bersusunan kuarsa pat-setempat disekitar Sibolga dan di feldspar porfir. Kompleks granit sebelah tenggara Siondop.

0617&0717 - 15 Uluhalanagodang yang berumur Kapur dan 4.2. Fisiografi Eosen mengandung granodiorit, diorit dan granit terdapat menyebar di Fisiografi di lembar peta Padangsidem- beberapa tempat. puan (0717) dan Sibolga (0617) dapat dibedakan kedalam grup Kubah Gambut, Kuarter Aluvial, Marin, Dataran, Tuf Toba Batuan sedimen yang tergolong Kuarter Masam, Volkan, Karst, Perbukitan, berumur Pleistosen sampai Holosen di Pegunungan/plato, dan Aneka Bentuk daerah ini terdiri dari formasi (Gambar 7). Aluvium Muda (Qh), Aluvium Tua (Qp) , formasi Sibolga (Qpsg) dan formasi Grup Kubah Gambut (D) Minas (Qpmi). Aluvium Muda mengandung Grup Kubah Gambut rierupa.—i suatu lempung sungai dan pantai, lanau, daerah yang didominasi oleh endapan pasir dan kerikil termasuk endapan bahan organik dengan bentuk wilayah kipas longsoran tanah terban dan gam- datar, lereng 0-2%. Grup ini merupakan but terdapat pada jalur-jalur aliran daerah basah (wetland) dengan drainase sungai, pelembahan dan di daerah sangat terhambat, terdapat di sebagian dataran sepanjang pantai. Formasi kecil rawa belakang dari pantai barat Aluvium Tua yang berumur Pleistosen lembar Sibolga dan sedikit di bagian sampai Holosen mengandung pasir, lanau sudut sebelah timurlaut pada lembar dan lempung dan sedikit kerikil ter- Padangsidempuan. Ketinggian tempat dapat di sekitar pantai di belakang 0-2m dpi. Di daerah survei dijumpai beting pada lembar Sibolga dan sekitar kubah gambut ombrogen yang bersifat Rantaukasai pada lembar peta oligotrofik. Berdasarkan sifat dan Padangsidempuan. Formasi Sibolga kedalamannya dapat, dibedakan kedalam berumur Pleistosen tersusun atas pasir satuan lahan: diatomea mengandung tuf dan batulanau D.2.1.2 Kubah gambut oligotrofik air dengan horison bentonit bertuf ter- tawar, kedalaman gambut <0,5 dapat di daerah Sarulla di sekitar S. meter Toru. Formasi Minas yang berumur Plis- D.2.1.3 Kubah gambut oligotrofik air tosen bersusunan pasir, kerikil, lum- tawar, kedalaman gambut pur dan lanau dengan horison tuf ter- 0,5-2,0 meter dapat pada Lembar Padangsidempuan sebelah timur. Grup Aluvial (A) Batuan volkanik yang tergolong Kuarter Grup aluvial merupakan bentukan di daerah ini termasuk dalam formasi landform masih muda. tidak terlipat Lubukraya (Qplu, Qtvlu), formasi Mar- serta terbentuk oleh aktivitas sungai. timbang (Qvma), formasi Sibualbuali Grup aluvial pada lembar peta ini ter- (Qvb) dan Tuf Toba (Qvt) berumur diri dari dataran aluvial perali'han ke Pleistosen sampai Holosen. Formasi grup Marin (B) , dataran banjir dan Lubukraya bersusunan tuf andesitik, sungai bermeander, pelembahan sempit, batuan andesitik, lahar dan lava. For- terbanan luas terisi endapan, kipas masi Martimbang bersusunan batuan aluvial dan. koluvial, teras sungai dan dasitik hingga andesitik berasosiasi dataran banjir sungai yang bercabang- dengan lava. Formasi Sibualbuali bercabang. Bentuk wilayah datar sampai susunan ignimbrit riodasitik, kubah berombak, berlereng 0-8%. Ketinggian riolitan dan sedikit andesit letusan tempat sangat bervariasi dari 2 sampai celah. Formasi TufToba bersusunan ig- 400 m dpi. nimbrit riodasitik terdapat di sudut Pada lembar ini grup aluvial terdapat barat sebelah utara lembar peta di sepanjang jalur aliran. sungai- Padangsidempuan sedikit bersambung ke sungai besar, pelembahan dan sebagian lembar peta Sibolga. rawa belakang di sepanjang pantai

0617&0717 - 16 GAMBAR 7 : GRUPFISIOGRAFI FIGURE 7 . PHYSIOGRAPHIC GROUPS

¥nc*iUntout C'oup GAMBAR 8 : BLOK DIAGRAM DAN GRÜP FIStOGRAFI LEMBAR SI8OLGA DAN PADANGSIDEMPUAN FIGURë 8 : BLOCK DIAGRAM AND PHYSIOGRAPHIC GROUP OF THE SIBOLGA AND PAOANG SIDEMPUAN SHBETS Sibolga. Berdasarkan litologl, bentuk lama. Teras marin terdapat di sebelah wilayah dan letak/posisinya dapat di- utara Sibolga dan daerah pesisir bedakan kedalam satuan lahan: selatan antara Batumundam dan Au.1.1 Dataran aluvial peralihan ke Singkuang. Grup Teras Marin dalam lem- marin, sedimen tidak dibedakan bar peta ini digabung dengan Grup Au.1.2 Dataran banjir dari sungai yang Aluvial. bermeander, sedimen tidak dibedakan Grup Dataran (P) Au.1.3 Pelembahan sempit antar dataran Grup ini umumnya mempunyai lereng tinggi, sedimen tidak dibedakan seragam serta mengalami proses erosi Au.1.4 Terbanan luas terisi, sedimen dan geomorfik oleh pelipatan. Ber- tidak dibedakan dasarkan bentuk wilayah, dataran di Aa.2.2 Kipas aluvial dan koluvial, tuf lembar peta ini dibedakan: intermedier P*.l - Dataran datar Au.2.2 Kipas aluvial dan koluvial, P*.2 - Dataran datar sampai berombak sedimen tidak dibedakan P*.3 - Dataran berombak Au.4.1 Teras • sungai, sedimen tidak P*.4 - Dataran berombak sampai ber- dibedakan ge lombang Au. 5 Dataran banjir dari sungai yang P*.5 - Dataran bergelombang bercabang-cabang, sedimen tidak P*.7- - Dataran berombak berbukit kecil dibedakan. P*.8 - Dataran bergelombang berbukit kecil Pembagian selanjutnya didasarkan pada P*.9 - Dataran berbukit kecil tingkat torehannya. Lereng umumnya 0-16%, kecuali pada Grap Marin (B) perbukitan kecil lereng >16% dan Grup Marin menempati dataran sepanjang dapat mencapai 25%. Ketinggian tempat pantai dengan lebar bervariasi antara 20-200 m-dpi. Grup ini terbentuk dari 1 dan 3 km dan berasal dari endapan batuan sedimen/ metasedimen berumur resen/subresen karena proses sedimen- Tersier dan Kuarter. Berdasarkan tipe tasi marin dan perimarin. litologinya dapat dibedakan atas : Semua sedimen marin diendapkan pada batuan sedimen halus dan kasar masam lingkungan bergaram atau payau dan (Pfq), batuan sedimen kasar masam tanah umumnya masih mengandung garam, (Pq), batuan sedimen halus masam (Pf), terutama pada daerah yang masih muda dan batuan sedimen halus masam ter- dan'mempunyai EC >2 ds/m. tutup tuf tuf masam (dPf). Di sepanjang pantai Sibolga terdapat Pembagian lebih lanjut didasarkan pada beting pasir datar dengan tanah yang tingkat torehannya. Di lembar peta ini umumnya bertekstur kasar. Ketinggian grup ini cukup luas penyebarannya dan tempat 0-5 m dpi. Berdasarkan lito- terdapat di sebelah timur. logi, letak/posisinya dan proses pe- ngendapannya, grup ini menurunkan Grup Tuf Toba (Q) satuan lahan: Grup fisiografi ini terbentuk oleh Bfq.1. lKompleks beting pantai ber- adanya erupsi (ashflow) Toba dan selang-seling dengan cekungan, menutupi daerah ini mula-i dari sedimen halus dan kasar masam ketinggian 100 sampai 1300m dpi. Pada Bu.4.3 Dataran pasang surut sepanjang lembar peta ini, erupsi Toba sebagian pantai bervegetasi bakau, besar menutupi daerah sekitar Sarulla sedimen tidak dibedakan. sebelah selatan ke arah barat dan sebelah utara ke arah timur, sebagian Grup Teras Marin (T) dijumpai sangat mengisi celah-celah antar perbukitan sempit sekali penyebarannya dan menem- dan setempat-setempat dalam luasan pati daerah lebih tinggi di belakang yang relatif sempit terdapat di dataran aluvial pada ketinggian 30-50 sekitar Gunung Tua. m dpi., sebagai hasil pengangkatan Erupsi Toba didominasl oleh tuf Toba yang berulang-ulang dalam waktu yang riodasitik. Pada lembar ini terdapat

0617&0717 - 19 pada dataran tlnggl dan dataran ren- Ketinggian tempat bervariasi dari 200 dah. Keadaan lereng sangat bervarlasi sampai 1860m dpi dan berlereng 15-80%. dari 3% sampai 75%. Berdasarkan Pembagian lebih lanjut berdasarkan ketinggian (altitude) dan morfologi, litologi dan tingkat torehan. Grup Tuf Toba dibedakan menj adi: Q*.l.l -Dataran tinggl tuf Toba masam, Grup Karst (K) plato, datar (lereng <3%) Grup Karst merupakan daerah yang Q*.1.2 -Dataran tinggi tuf Toba masam, didominasi oleh bahan berkapur atau lereng atas, agak melandai batukapur dan secara umum keadaan mor- (lereng 3-8%) fologinya tidak teratur; biasanya Q*.1.3 -Dataran tinggi tuf Toba masam, dicirikan dengan adanya gua-gua dan lereng atas, melandai (lereng batukapur keras dan berukuran kasar 8-16%) muncul di permukaan (rock outcrops). Q*.1.4 -Dataran tinggi tuf Toba masam, Solum tanah di daerah ïni umumnya lembah luas terisi, agak dangkal dan hanya terdapat pada melandai, berombak kantung-kantung atau ceIah diantara Q*.1.5 -Dataran tinggi tuf Toba masam, batuan. Biasanya jenis tanah di daerah agak melandai, bergelombang ini mempunyai pH yang tingg,i karena Q*.1.6 -Dataran tinggi tuf Toba masam, pengaruh dari bahan induknya. melandai, berombak Berdasarkan kemiringan lereng, grup Q*.1.7 -Dataran tinggi tuf Toba masam, ini dibagi menjadi: lembah luas terisi, melandai, K*.3 Relief perbukitan dan bukit- bergelombang bukit kecil Q*.1.8 -Dataran tinggi tuf Toba masam, K*.5 Pegunungan karst. lembah sungai sempit terisi Q*.2.1 - Dataran rendah tuf Toba masam, Pembagian selanjutnya berdasarkan agak melandai tingkat torehan. Pada lembar peta ini Q*.2.2 -Dataran rendah tuf Toba masam, grup karst terdapat di daerah antara datar Sosopan dan Sibuhuan, juga setempat- Q*.2.3 -Dataran rendah tuf Toba masam, setempat muncul di bagian tengah, lembah sungai terisi utara dan selatan.

Pembagian lebih lanjut didasarkan pada Grup Perbukitan (H) tingkat torehannya. Grup Perbukitan merupakan daerah angkatan, lipatan atau patahan yang Grup Volkan (V) mengalami proses denudasi/erosi dengan Grup ini terbentuk karena aktivitas perbedaan tinggi (amplitudo) 50-300 volkanik (resen/subresen) berupa meter. Pada lembar peta ini dapat kerucut volkan atau yang sudah dibedakan: tererosi, aliran lava, dan lahar. Di H*.l - Perbukitan dengan pola random lembar peta ini hanya terdapat strato H*. 2 - L.ingur paralel memanjang dan volkan yang dijumpai di sekitar lereng yang mengikuti Struktur Sipirok (Dolok Sibual-buali) dari tektonik batuan volkan dasitik, di sekitar H*.3 - Relief perbukitan kompleks. Padangsidempuan (Dolok Lubuk Raya) dari volkan andesitik dan di sekitar Lereng bervariasi dari 16 sampai 55%. Tarutung (Dolok Martimbang) dari Ketinggian tempat 50-3.50 m dpi. volkan andesitik. Pembagian strato Litologinya bervariasi dari' batuan volkan berdasarkan posisi/lerengnya sedimen/metasedimen, volkan tua, dibedakan atas : batuan intrusi dan asosiasinya yang V*.1.2 Lereng atas umumnya berumur Tersier dan Prater- V*.1.3 Lereng tengah sier. Satuan lahan dibedakan ber- V*.1.4. Lereng bawah dasarkan litologi Ha, Hq, Hf, Hg, Hfq, V*.1.6 Aliran lahar Hqk, Hu, Hy dan dHu. Pembagian lebih V*.1.7 Singkapan detail didasarkan pada kemiringan lereng dan tingkat torehan.

O617&O717 - 20 Grup ' Pegunungan/Plato (M) X.l Daerah terjal Grup Pegunungan/Plato merupakan daerah X.2 Daerah pemukiman/kota angkatan, lipatan dan patahan yang X.3 Danau (X.3). • mempunyai posisi lebih tinggi daripada perbukitan dengan perbedaan ketinggian (relief amplitudo) lebih dari 300 4.3. Hidrologi meter. Secara umum keadaan relief/ lereng dapat dibedakan: Keadaan hidrologi secara umum di M*.2.2 - Pegunungan agak curam sampai daerah lembar peta Padangsidempuan sangat curam (25-75%) (0717) ditentukan oleh keadaan M*.2.3 -Pegunungan sangat curam sekali relief/lereng umum serta porositas bahan induk yang sangat bervariasi dalam komposisi, besar butir serta Keadaan litologinya bervariasi dan kemiririgan lapisan-lapisannya. Keadaan terdiri dari batuan sedimen, litologi yang heterogen tersebut di metasedimen, batuan volkan tua dan atas menimbulkan kenampakan pola intrusi dan asosiasinya serta umumnya drainase yang sangat bervariasi. berumur Tersier sampai Pratersier. Secara umum daerah yang bersangkutan Ketinggian tempat bervariasi dari 300 memiliki pola drainase dendritik pada sampai 2000 m dpi, berlereng curam wilayah dengan litologi yang homogen sampai sangat'curam sekali (25-85%). terutama di sekitar Gunungtua dan Berdasarkan tipe litologi dibedakan Binanga. Pola drainase paralel ter- dalam tuf intermedier (Ma), batuan dapat di sebelah tenggara Padangsidem- sedimen halus dan kasar masam (Mfq), puan, Dolok Mayang dan daerah lainnya. batuan sedimen kasar masam (Mq) , Pola drainase lain yang dapat dijumpai batuan plutonik masam (Mg) dan batuan adalah radial di sekitar Lubukraya dan sedimen tidak dibedakan (Mu). pola drainase karstik di wilayah- Pembagian selanjutnya didasarkan pada Sosopan dan Tanjungbaru. rellef/lereng dan tingkat torehannya. Di daerah sepanjang aliran sungai dan Pada sebagian daerah pegunungan, in- daerah dataran rendah serta wilayah- tensitas pengamatan sangat kurang wilayah depresi, keadaan hidrologi- karena keadaan topografi dan lereng masih dipengaruhi oleh arah lereng sangat curam sekali sehingga sulit un- umum. Arah lereng umum yang dimaksud tuk dijangkau. mengarah ke selatan dan baratdaya. Pola drainase di sepanjang aliran su- Grup pegunungan pada lembar peta ini ngai , utama seperti Sungai Barumun, merupakan deretan pegunungan Bukit Batang Sosa dan Batang Gadis adalah Barisan yang terdapat di sekitar meandering, sedangkan pada daerah Gunungtua, sebelah barat laut dan dataran rendah dan wilayah depresi selatan lembar peta- serta sekitar pola drainase yang dijumpai adalah Siondop memanjang ke. arah tenggara dan subparalel. baratlaut sampai ke utara Sibolga. Pada lembar Sibolga (0617) keadaan Aneka Bentuk (X) hidrologi dipengaruhi oleh lereng umum Aneka Bentuk tidak termasuk dalam grup. terutama pada bagian utara lembar fisiografi diatas serta ti'dak peta, sedangkan bagian lain merupakan merupakan lahan untuk pértanian dan dataran dan depresi. Pola drainase banyak dipengaruhi oleh aktivitas yang dijumpai adalah meandering di manusia seperti perkotaan/pemukiman sepanjang aliran sungai terutama penduduk, penimbunan limbah, daerah Batang Toru, Aek Garoga, Aek Sibun- pertambangan atau berupa daerah yang dung, Aek Ko lang, Aek Rasau, Aek diratakan, danau dan lembah dengan Sibaluan, Aek Badiri, Aek Batumundam, lereng curam. Pada umumnya Aneka Ben- Aek Siam dan Batang Gadis, sedangkan tuk mempunyai luasan relatif sangat daerah lainnya secara umum berpola sempit dan terdiri dari : drainase paralel.

0617&0717 - 21 Intrus! air asin di Sibolga dan sepan- kaya akan unsur-unsur hara jang pantai barat lainnya kurang (oligotrofik). Bahan minerai dibawah begitu terasa, sebagian air bersifat gambut umumnya miskin hara dan ber- tawar. tekstur kasar, sedangkan bahan halus dari sedimen marin umumnya lebih kaya tetapi mengandung pirit. Jenis tanah 5. SATUAN LAHAN yang mendominasi satuan lahan ini adalah Tropohemists dan 5.1. Satuan lahan dan tanah Trpposaprists. Penghambat utama di daerah ini adalah Pada setiap satuan lahan umumnya miskin unsur hara, ketebalan gambut ditemukan lebih dari satu satuan tanah dan genangan permanen. (pada tingkat Great Group), dan untuk Daerah ini secara umum untuk jangka memudahkan pembacaannya mâka setiap pendek tidak mempunyai nilai untuk satuan tanah yang dijumpai pada setiap dikembangkan sebagai daerah per- satuan lahan ditentukan luas penyebar- tanian, kecuali setempat-setempat di annya secara kualitatif, yaitu: bagian pinggir dengan ketebalan gam- -Sangat dominait: apabila penyebaran- but dangkal (<0,5m) dapat dijadikan nya >75% dari luasan Satuan Lahan. sebagai area persawahan lebak, tetapi -Dominan: apabila penyebarannya an- dalam luasan yang relatif sempit dan tara 50-75% dari luasan Satuan memerlukan pengendalian air yang Lahan. balk. -Cukup: apabila penyebarannya antara 25-50% dari luasan Satuan Lahan. Tanah Grup Marin (B) -Sedikit: apabila penyebarannya an- Grup ini merupakan jalur-jalur beting tara 10-25% dari luasan Satuan pasir pantai dan cekungan antar Lahan. beting (swales) dijumpai memanjang -Sedikit sekali: apabila penyebaran- sejajar garis pantai barat. Cekungan nya <10% dari luasan Satuan Lahan. umumnya tergenang/ berawa. Di jalur- jalur beting pasir pantai setempat- Secara garis besar satuan lahan yang setempat dipotong oleh alur pasang dijumpai pada lembar peta ini dapat surut (tidal creeks). Di wilayah dikelompokkan kedalam 10 grup, yaitu dataran berlumpur (tidal flat) dijum- Kubah Gambut, Marin, Aluvial, pai tanah yang masih mentah dan ber- Dataran, Perbukitan, Pegunungan, potensi suifat masam. Volkan, Tuf Toba, Karst dan Aneka Bentuk lahan datar sampai datar a gak Bentuk (Gambar 6). cekung dan datar agak melandai. Dibawah ini akan diuraikan mengenai Sepanjang beting pantai dij:umpai keadaan tanah yang dijumpai pada jenis tanah Tropopsamments dan Tropa- masing-masing grup fisiografl. quents bertekstur kasar dan Hydra- quents, belum mengalami perkembangan. Tanah Grup Kubah Gambut (D) Sedangkan di cekungan (swalles) Di daerah ini dijumpai kubah gambut dijumpai Suifaquents, bertekstur oliogotrofik air tawar. Ketebalan halus sampai sedang dan belum berkem- gambut 0,5-2,0 m, terbentuk di daerah bang. yang relatif cekung dan tergenang Penghambat utama daerah ini adalah sepanjang tahun. Dalam lingkungan genangan air laut, kemungkinan demikian sisa tumbuhan sukar hancur keracunan sulfat serta bahaya dan menumpuk sebagai gambut dengan kekeringan di daerah beting pantai. atau tanpa campuran endapan tanah Dengan memperhatikan dan menjaga minerai. Bentuk permukaan seperti kelestarian habitat pantai, daerah kubah dengan bagian pinggir kedalaman ini dapat dijadikan daerah perikanan gambut <2m ke bagian tengah >2m. atau tambak. Dengan pengendalian air Bahan organik telah mengalami dekom- yang baik, setempat-setempat daerah poslsi menjadi hemik dan saprik serta pantai dapat digunakan sebagai daerah diperkirakan komposisi àbunya tidak pesawahan dan khusus bagian beting

O617&O717 - 22 pantai dapat digunakan sebagai area Hapludults dan Dystropepts yang pertanaman kelapa. berasosiasi dengan Tropaquepts. Dataran dengan endapan kasar (Pq) Tanah Grup Aluvial (A) didomisi Hapludox dan Tropohumods Tanah-tanah pada grup fislografi ini yang berasosiasi dengan Tropopsam- berkembang dari bahan endapan halus ments dan Tropaquepts. Umumnya dan kasar atau campuran keduanya. Tropohumods terdapat di bagian yang Tanah pada dataran aluvial peralihan melandai ke arah sungai. Dataran den- ke dataran marin (A*.1.1) didominasi gan endapan halus dan kasar (Pfq) oleh Tropaquents yang berasosiasi didominasi oleh Hapludox dan Kan- dengan Tropaquepts dan Tropohemists. diudults. Tanah-tanah pada dataran banjir dari Dataran dengan endapan halus bernapal sungai yang bermeander (A*.1.2) (Pfk) didominasi oleh Eutropepts yang didominasi oleh Tropaquepts dan berasosiasi dengan Hapludalfs dan Dystropepts yang berasosiasi dengan Tropaquepts. Tropofluvents. Sedangkan pada pelem- Di sekitar Gunungtua setempat- bahan sempit (A*.1.3) yang terdapat setempat terdapat endapan halus yang diantara satuan lahan lainnya tertutup oleh Tuf Toba (dPf) yang didominasi oleh Tropaquepts dan didominasi oleh Hapludox, Kan- sedikit Fluvaquents. diudults, Dystropepts dan Hapludults. Pada daerah ferbanan luas terisi Penghambat utama pada tanah-tanah di (sedimen aluvial) terbagi menjadi wilayah dataran umumnya berupa jalur sungai (A*.1.4.1) yang terben- tingkat kesuburan tanah rendah, sifat tuk dari bahan endapan kasar dan cam- fisik tanah jelek, terutama pada puran didominasi Eutropepts dan tanah-tanah yang terbentuk- dari bahan Tropofluvents; dataran banjir dan endapan kasar, potensi keracunan Al rawa belakang (A*.1.4.2) didominasi tinggi dan bahaya erosi di daerah tanah Tropaquepts dan Tropaquents, berlereng. sedangkan kipas aluvio-koluvial Potensi dataran yang cukup baik untuk sepanjang lereng gunung patahan pengembangan pertanian harus (A*.1.4.3) didominasi Tropaquepts dan dibarengi dengan usaha perbaikan Eutropepts. Kipas aluvial dan kesuburan tanah dan konservasi di koluvial (A*.2), teras sungai (A*.4) daerah berlereng. dan dataran banj ir dari sungai yang bercabang-cabang (A*.5) didominasi Tanah Grup Perbukitan (H) oleh Eutropepts, Dystropepts dan Tanah-tanah pada daerah perbukitan Tropaquepts dengan inklusi Fluva- berkembang dari batuan plutonik masam quents dan Tropofluvents. dan intermédier, batuan sedimen dan Secara umum tanah-tanah tersebut di metasedimen atau campurannya. Tanah- atas cukup baik untuk pengembangan tanah yang umum dijumpai, pada grup usaha pertanian karena kandungan un- ini adalah Dystropepts, Humitropepts, sur hara tanaman cukup tersedia, Hapludults, Troporthents, dan Tropop- hanya beberapa kendala yang perlu samments . Perbukitan dari bahan kasar diperhatikan pada tanah tertentu (Hq) didominasi oleh Tropopsamments yaitu permukaan air tanah yang tinggi yang berasosiasi dengan Dystropepts. dan drainase terhambat serta bahaya Tanah pada perbukitan dari bahan banjir. kasar berkapur (Hqk) didominasi oleh Troporthents yang berasosiasi dengan Tanah Grup Dataran (P) Eutropepts, sedangkan dari batuan Tanah-tanah di Dataran umumnya sedimen campuran yang tertutup tuf berkembang dari batuan sedimen halus masam dasitik (dHu) didominasi oleh dan kasar atau campurannya. Troporthents yang berasosiasi dengan Perbedaan utama tanah-tanah yang ter- Dystropepts dan Hapludults. Per- bentuk umumnya karena pengaruh bukitan dengan tuf intermedier (Ha) keadaan litologinya. Dataran dengan dan batuan plutonik masam (Hg) endapan halus (Pf) didominasi oleh didominasi oleh Dystropepts yang

O617&O717 - 23 berasosiasi dengan Hapludults dan Tingkat kesuburan tanah tergolong Humitropepts. Perbukitan dengan sedang sampai rendah. batuan metamorf tidak dibedakan (Hy) Potensi tanah untuk pengembangan per- didominasi oleh Humitropepts yang tanian tergolong kurang baik dengan berasosiasi dengan Dystropepts. kendala utama berupa topografi/lereng Tanah-tanah pada perbukitan dari curam sampai sangat curam, kesuburan • batuan sedimen halus masam (Hf ) , tanah rendah, dan bahaya erosi. batuan sedimen halus dan kasar masam (Hfq) dan batuan sedimen tidak Tanah Grup Volkan (V) dibedakan (Hu) didominasi oleh Grup ini terbentuk pada masa Kuarter Dystropepts dan Hapludults. berupa kerucut volkan muda. Secara umum tanah-tanah pada. Grup Bahan volkanik terdiri dari -tuf Perbukitan kurang berpotensi untuk dasitik dan andesitik serta setempat- pengembangan pertanian. Kendala utama setempat berupa lava dan lahar. umumnya berupa topografi cukup ter- Penyebaran grup ini terdapat dise- jal, kesuburan tanah rendah dan kltar Dolok Lubukraya, Batangtoru dan setempat-setempat sifat fisik tanah sebelah utara Padangsidempuan, pada kurang baik (kedala'man efektif ketinggian antara 200 dan 1887m dpi., dangkal dan tekstur kasar). lereng melandai sampai sangat curam, berkisar antara 15% sampai lebih dari Tanah Grup Pegunungan/Flato (M) 45%. • . Grup pegunungan/plato terletak pada Lereng atas (V.l.2) dan tengah ketinggian 300-2000m dpi., berlereng (V.l.3) didaminasi oleh Dystrandepts curam sampai sangat curam sekali, yang berasosiasi dengan Humitropepts. dengan lereng berkisar antara 30% dan Tanah umumnya sudah mengalami perkem- lebih dari 75%. Bagian tertinggi ter- bangan, berpenampang dalam, tekstur letak di Dolok Tampulon Anjing (2000m halus sampai sedang, drainase agak dpi). cepat sampai sedang. Jenis tanah dominan di daerah ini Pada lereng bawah (V.1.4) didominasi adalah Dystropepts, Humitropepts, oleh Dystropepts dan Humitropepts. Hapludults dan Troporthents. Tanah umumnya berpenampang dalam, Pegunungan dari tuf intermedier (Ma) tekstur halus sampai sedang dan dengan vegetasi hutan primer drainase sedang. Daerah aliran lahar didominasi oleh Hapludults yang. muda (V.1.6) didomiWasi oleh Dystran- berasosiasi dengan Haplohumults dan depts dan Humitropepts, bersolum Troporthents. Pegunungan dengan dalam, tekstur halus dan drainase batuan sedimen halus dan kasar sedang. Sedangkan pada daerah didominasi oleh Dystropepts yang singkapan- (V.l.7) didominasi oleh berasosiasi dengan Hapludults dan Troporthents yang berasosiasi dengan Humitropepts, sedangkan dari batuan Dystropepts bersolum dangkal, tekstur kasar masam (Mq) didominasi oleh sedang, dengan drainase agak cepat. Troporthents yang berasosiasi dengan Penghambat utama di daerah ini adalah Dystropepts. Pegunungan dari batuan lereng cukup terjal dan sebagian be- plutonik masam didominasi oleh sar peka terhadap erosi, sehingga di- Dystropepts dan Hapludults. Pegu- perlukan perlakuan konservasi tanah. nungan dari batuan ^sedimen tidak Tanah pada lereng bawah cukup poten- dibedakan (Mu) didominasi oleh sial untuk pengembangan pertanian Dystropepts yang berasosiasi dengan terutama tanaman hortikultura dan Hapludults dan Troporthents. tanaman tahunan dataran tinggi. Paleudults dijumpai pada satuan lahan Sedangkan lereng atas dan tengah ini sebagai inklusi. Secara umum sebalknya tetap dipertahankan sebagai tanah bersolum dalam, tekstur sedang hutan lindung. sampai halus dan drainase baik kecuali Troporthents bersolum sedang Tanah Grup Tuf Toba (Q) sampai dangkal, drainase agak cepat Grup Tuf Toba terdapat di sekitar dan tekstur agak kasar sampai kasar. Dolok Bongbongan, Dolok Mayang, Tor

0617&0717 - 24 Pulan Barigat, Ladang Pas ir, Par- Tanah Grup Karst (K) tuahan, Aek Nasia, Dolok Sidua-dua, Grup Karst dijumpai di sekitar Dolok Dolok Pancurnatolu, Sungai Pulng, Sibalanga, sebelah selatan Dolok Tin- Payapining serta di sekitar jauan, sebelah utara Aek Badak, dan Pagarahambiri, Hitetoras dan Aek sebelah selatan Sigodang. Bentuk Kanan yang terletak pada ketinggian wilayah berbukit (Kc.3) sampai ber- 100 sampai 1300m dpi. gunung (Kc.5), setempat-setempat per- Tuf Toba dalam lembar peta ini ter- mukaannya terbuka tanpa vegetasi bagl menjadi: (a) Daerah dataran penutup. tinggl terdiri dari plato, lereng Batukapur yang lebih resisten muncul atas dan peralihan (Q.l) dan (b) dipermukaan sebagai singkapan dengan Daerah dataran rendah terdiri dari dinding yang sangat curam, lembah- lereng bawah, dataran, kaki' lereng lembah sempit dan dalam serta sering dan klpas (Q.2) dijumpai guha-guha yang cukup dalam. Daerah dataran tinggi Tuf Toba (Q.l) Terletak pada ketinggian antara 400- dijumpai pada ketinggian 500-1300m 1200m dpi, daerahnya sangat tertoreh dpi. Tempat tertinggi terletak di sampai sangat tertoreh sekali dengan sekitar Dolok Siduaduà. Sebagian lereng antara 16 dan lebih dari 55%. daerahnya terpotong sesar/patahan Jenis tanah yang dominan di daerah Sumatera memanjang arah tenggara- ini adalah Eutropepts dan Tropor- barat laut. Sepanjang garis sesar thents yang berasosiasi dengan Kan- dapat dijumpai rangkaian bukit kecil diudalfs. memanjang. Jenis tanah dominan di Tanah berpe.nampang dangkal sampai daerah ini adalah Dystrandepts yang sedang, tekstur halus, drainase baik, berasosiasi dengan Humitropepts. kesuburan tanah rendah sampai sedang. Tanah umumnya bersolum dalam, tekstur Daerah ini kurang berpotensi untuk bervariasi dari halus sampai agak pengembangan pertanian. Setempat- kasar, drainase baik sampai agak setempat dalam skala kecil masih cepat. memungkinkan untuk usaha perkebunan Daerah dataran rendah Tuf Toba (Q.2) dan pertanian tanaman semusim. terletak pada ketinggian antara 100- Walaupün demikian batukapurnya masih 400m dpi. dijumpai di sekitar memungkinkan untuk diperniagakan. Pagarahambiri dan Panonabonan, berlereng datar agak melandai (lereng Aneka Bentuk (X) 3-8%). Grup ini merupakan bentukan spesifik Jenis tanah yang dominan di daerah di luar grup fisiografi yang ada, ini adalah Humitropepts dan terbentuk sebagai akibat dari ak- Dystropepts yang berasosiasi dengan tivitas manusia atau secara alami. Hapludults dan Tropaquepts. Tanah- Dalam lembar peta ini terdiri dari tanah tersebut umumnya bersolum X.l berupa lembah sungai terjal dalam, bertekstur halus sampai agak tererosi atau lereng terjal kasar dan berdrainase baik. (escarpment), X.2 berupa perkotaan/ Penghambat utama umumnya berupa pemukiman, dan X.3 berupa danau. lereng curam, kesuburan tanah rendah, bahaya erosi dan kemungkinan keku- rangan air. 5.2. Isi dari uraian satuan lahan Daerah Tuf Toba merupakan daerah yang cukup berpotensi untük pertanian Uraian satuan lahan merupakan pokok terutama untuk pengembangan hortikul- terpenting dalam buku penjeïasan ini. tura serta tanaman pangan semusim. Disajikan uraian dari 10 satuan lahan Pada tanah-tanah yang menempati yang terdapat pada lembar peta daerah berlereng curam sampai sangat Sibolga (0617) dan Padangsidempuan curam disarankan tetap dipertahankan (0717), secara detail dan dalam sebagai hutan lindung. bentuk/format yang baku.

0617&0717 - 25 Agar memudahkan untuk para pemakai, Soil depth (kedalaman tanah) maka setiap Satuan Lahan yang Mineral soil diketemukan pada lembar peta ini (tanah mineral) diuraikan secara mendetil pada Lam- very shallow (sangat dangkal) <10 cm piran 2. shallow (dangkal ) 11-25 moderately shallow (cukup dangkal) 26-50 Uraian itu antara lain meliputi : moderately deep (cukup dalam) 51-75 - Luas dan penyebarannya pada tiap deep (dalam) 76-100 Propinsi yang diliput. very deep (sangat dalam) 101-150 -Citra satelit, foto udara dan Radar extremely deep (ekstrim dalam) >150 yang meliput Satuan Lahan tsb. -Bahan induk yang meliputi tingkat peat pelapukannya, litologinya dan for- (gambut) masi menurut peta Geologi. very shallow (sangat dangkal) <10 cm -Sumber dan kualitas air shallow (dangkal) 11-25 -Kemungkinan perikanan moderately shallow (cukup dangkal) 26-50 -Bahaya banj i r atau genangan moderately deep (cukup dalam) -Vegetasi dan penggunaan lahan deep (dalam) 51-75 -Tingkat bahaya erosi (yang diper- very deep (sangat dalam) 76-200 cepat) extremely deep (ekstrim dalam) >200 -Satuan Tanah yang dijumpai (pada tingkat Great Grup) -Sifat-sifat kimia dan morfologi Exchangeable Potassium, CEC and Total Potassium penting dari tanah lapisan atas K dapat ditukar, KTK dan K total -Ketinggian dari muka laut (meq/100g or/atau cmol(+)/kg)(mg/100g) - Bentuk profil Satuan Lahan tsb K CEC K- -Pola drainase very low (sangat rendah) <0.1 <5 <10 - Lereng low (rendah) 0.1-0.2 5-16 10-20 -Distribusi lereng pada Satuan Lahan medium (sedang) 0.3-0.5 17-24 21-40 tersebut high (tinggi) 0.6-1.0' 25-40 41-60 -Perbedaan tinggi verv hiKh (sansat tinxxi) >! g >40 >60 -Bentuk wilayah -Keadaan pelembahannya -Pembagian lanjut dari Satuan Lahan Phosphorus / Fosfor

(Faset) Available (ppg! £2=5^. Total -Fragmentasi lahan yang bisa Tersedia Total diusahakan untuk pertanian, dan Bray-1 Bray-2 Olsen HC1 -Tingkat relaibilitas dari unsur- very low (sangat rendah) <10 <3 <5 <10 unsur diatas. low (rendah) 10-15 3-7 5-11 10-20 medium (sedang) 16-25 8-20 12-22 21-40 Disamping itu disajikan pula penam- high (tinggi) 26-35 >20 >22 41-60 pang melintang dari tiap Satuan Lahan very high (sangat tinggi) >35 ~ >60 untuk memudahkan pémakai membayangkan " keadaan Satuan Lahan tersebut. Pada butir 23 Deskripsi Satuan Lahan Soil reaction (pH) / Reaksi tanah pH (Lampiran 2) disajikan harkat ber- extremely acid (ekstrim masam) <3.5 bagai sifat tanah terukur sbb.: excessively acid" (eksesif masam) 3.5-4 .5 very strongly acid (sangat masam) 4.6-5.0 Texture (tekstur) strongly acid (kuat masam) 5.1-5 .5 fine (halus) = Hat berat, liât.liât berpasir. liât moderately acid (cukup masam) 5.6-6 .0 berdebu slightly acid (agak masam) 6.1-6 .5 moderately fine (cukup balus) = lempung berliat, neutral (netral) 6.6-7 .3 lempung, liai berdebu, lempung liât berpasir mildly alkaline (agak alkalin) 7.4-7 .8 medium (sedang) *• lempung, lempung berdebu, debu moder. alkaline (cukup alkalin) 7.9-8 .4 moderately coarse (cukup kasar). = lempung berpasir strongly alkaline (sangat alkalin) 8.5-9 .0 coarse (kasar) = pasir, pasir berlempung very str.alkaline (ekstrim alkalin >9.0

0617&0717 - 26 Aluminium saturation Buurman, F. & T. Balsem, 1990. Land Kejenuhan Aluminium unit classification for the recon- (X of/dari ECEC) naissance soil survey of Sumatra. very low (sangat rendah) "=20 Soil Data Base Management'Project low (rendah) 20-40 . Technical Report No. 3, Version 2., medium (sedang) 41-60 Centre for Soil Research, Bogor high (tinggi) 61-80 Desaunettes, J.R., 1977. Catalogue of very high (sangat tinggi) >B0 landforms for Indonesia. FAO/UNDP Land Capability Appraisal Project Salinity (Group B & D) Working Paper No. 13, Soil Research Salinitas (Grup B & 0) Institute, Bogor (ECe, dS/m) FAO/ÜNESCO, 1977. Guidelines for soil salt free bebas garam <3.9 description. Rome very slightly saline sangat sedikit bergaram 4.0-5.9 Gallup, D.L., 1981. Proposed coding slightly saline sedikit bergaram 6.0-7.9 system for pedon data for trial by moderately saline cukup bergaram 8.0-16.0 the Centre for Soil Research, Bogor. saline bergaram >16.0 AGO/INS/78/006, Manual 3. Bogor Kips, P.A., D. Djaenudin & Nata Acid sulphate potential (depth) Suharta, 1981. The land unit ap- Potensi Sulfat Ma sam (kedalaman) proach to land resources surveys for not relevant (tidak relevan): no potential land use planning, with particular tak berpotensi reference to the Sekampung water- very shallow (sangat dangkal) <25 cm shed, Lampung province, Sumatra, In- (bahaya utama) donesia. shallow (dangkal) 26-50 Muslihat, A., Ü. Wood-Sichra & P. moderately shallow (cukup dangkal) 51-75 Buurman, 1989. Soll sample analysis moderately deep (cukup dalam) 76-100 data base - User Manual and Techni- deep (dalam) 101-150 cal Manual. Soil Data Base Manage- very deep (sangat dalam) >150 cm ment Project, Technical Report No. (tanpa bahaya) 17, Version 1.0. Centre for Soil Research, Bogor. Fusat Fenelitian dan Pengembangan 6. DAFTAR PUSTAKA Geologi, 1982. Explanatory Note and Geological Map of the Sibolga and Balsem, T., & F. Buurman, 1990. Padangsidempuan Quadrangles, Guidelines for Land Unit Descrip- Sumatera. tion. • Soil Data Base Management RePPProT (Regional Physical Planning Project Technical Report No. 13, Programme for Transmigration), 1985. Version 2., Centre for Soil Review of Phase IB results Central Research, Bogor. Kalimantan. Ministry of Transmigra- Balsem, T., F. Buurman & U. tfood- tion, Jakarta. Sichra, 1990. Penggunaan kode kom- RePPProT (Regional Physical Planning puter untuk 'data lapangan. Proyek Programme for Transmigration), 1988. Pengelolaan Data Base Tanah, Laporan Review of Phase I results Sumatra. Tehnis No. 5a, Versi 1.1. Pusat Ministry of Transmigration, Jakarta. Penelitian Tanah, Bogor SCS (Soil Conservation Service), 1978. Buurman, P., 1990. Chemical, physical Pedon coding system for the National and mineralogical properties for the Cooperative Soil Survey. USDA, soil data base. Soil Data Base Washington D.C. Management Project Technical Report Soil Survey Staff, 1987. Keys for Soil No. 7, Version 2.1., Centre for Soil Taxonomy. Soil Management Support Research, Bogor Services Monograph No. 6. U.S. Dept. of Agriculture.

0617&0717 - 27 Daftar Laporan 46.Survei dan Pemetaan Tanah Daerah Batang Pane WPP IXb, SKP D, Tapanuli (Nomor adalah nomor laporan dalam file Selatan, Pusat Penelitian Tanah, No. SUMREP) • 51/1982, Bogor, 1982. 120.Padangsidempuan Nucleus Estate/ 33.Survei dan Pemetaan Tanah daerah Small holders. Development Project Pasir Pangarayan WPP XIIA, SKP J, For Goverment of Indonesia, Draft Riau, Pusat Penelitian Tanah/P3MT Final Report. Vol. VI, 1974, Hunting Bogor, 1981. Technical Service, London. 35.Survei dan Pemetaan Tanah Daerah 291.Survei dan Pemetaan Tanah Daerah Pasir Pangarayan II WPP XII, SKP C Ujung Batu WPP IXb, SKP B, Tapanuli dan D, Institut Pertanian Bogor, Selatan, Pusat Penelitian Tanah, No. 31/1981, Bogor, 1981. Bogor, 1983. 38.Survei dan Pemetaan Tanah Daerah 292.Survei dan Pemetaan Tanah Daerah Rianiate WPP XII, SKP F, Tapanuli Ujung Batu WPP IX, SKP B, Tapanuli Selatan, Pusat Penelitian Tanah, Selatan, Pusat Penelitian Tanah, No. 97/1983, Bogor, 1983. Bogor, 1983. 39.Survei dan Pemetaan Tanah Daerah Rianiate WPP XII, SKP G(A), 388.Feasibility Study of Batang Hung Tapanuli Selatan, Pusat Penelitian Irrigations Scheme, Tapanuli Selatan,- Tanah, No. 90/1984, Bogor, 1984. Binnie and Partners in Association 4O.Survei dan Pemetaan Tanah Daerah with Hunting Technical Services Rianiate WPP XII, SKP G(B), Limited, Directorate General of Water Tapanuli Selatan, Pusat Penelitian Resources Development, Vol. I, II, Tanah, No. 91/1984, Bogor, 1984. III, 1980. 41.Survei dan Pemetaan Tanah Daerah 389.Feasibility Study of Batang Pengganti Aek Näpanas, Tapanuli Angkola Irrigations Scheme, Tapanuli Selatan, Pusat Penelitian Tanah, Selatan, Binnie and Partners in No. 112/1984, Bogor, 1984. Association with Hunting Technical 45.Survei dan Pemetaan Tanah Daerah Services Limited, Directorate General Batang Pane WPP IXa, SKP E, of Water Resources Development, Vol. Tapanuli Selatan, Pusat Penelitian I, II, III, 1980. Tanah, No. 48/1982, Bogor, 1982.

0617&0717 - 28 LAMPIRAN 1. DAFTAR SÜSÜNAN TIM SÜRVEI TANAH LEMBAR PETA INI APPENDIX 1. LIST OF THE SOIL SURVEY TEAM FOR THIS MAPSHEET

1. Penanggungjawab dan Anggota Tim Survei

Penanggung jawab Dr. Suryatna Effendi PIU LREP Part II Dr. M. Sudjadi Pimbagpro PDBT Ismangun, MSc Koordinator Dr. J. Sri Adiningsih Ketua Tim Ir. D. Subardja, MSc Ketua Regu - Kartiwa Djuanda - Yayat Hadian - Samdan Candradinata - Yehu Mulyadi - Ir. Nono Sutrisno - Ir. Lukmah Hakim

Anggota Regu : - Wahyu Supriyatna - Enang Haris - Suhartono CH. - Jojon Suryono - Ir. Kurmen Sudarman - Ir, Sukristionubowo

2. Tenaga Daerah : - Aswan Hasibuan, SH - Ir. Bambang Maruto - Ir. Bakti Lubis - Bambang Bincar Harahap

3. Tim Evaluasi dan Korelasi :- Ir. H. Ahmad Hidayat, MSc - Junus Dai, MS - Drs Tom Balsem - Dr. P. Buurman

4. Tenaga Komputer dan Kartografi

Tenaga Komputer : - Dra. Karmini Gandasasmita - R a s t a - Hery Sastramihardja

Kartografi : - Dra. B. Retno MW. - Sutrisno

0617&0717 - 29 0617&0717 - 30 LAMPIRAN 2. URAIAN SATUAN LAHAN APPENDIX 2. LAND UNIT DESCRIPTIONS

0617&0717 - 31 LAND UNIT : D.2.1.2 Mapsheet : 0617 LREP-SDBM, CSR-BOGQR 08/12/90

MAP IMAGE : CROSS SECTION : '

Au.1.2 - D.2.1.2- Au.1.2 shallow peat a. fringe dome b.dome b : a

1. LAND UNIT : D.2.1.2 Oligotrophic freshwater peat domes, organic sediment thickness 0.5-2.0 m, flat to slightly convex. 2. MAP SHEET : 0617 3. AREA : 185.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 30/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 10H / -0« 9. RADAR : STAR-1/250/88/0617- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Slight b. Lithology : peat, , c. Formation : Qp , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Swamp 14. RIVERS a. Floodrisk water : High b. Floodrisk sed.: None c. Inundation : Permanent 15. VEGETATION/LAND USE : peat swamp forest Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : None b. Evidence Not relevant 17. TERRAIN : Flat, slope < 31, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 5 m Maximum : 25 m Range : 5 - 25 m 21. DRAINAGE a. Pattern: None b. Density : Very low 24. VALLEY FLOOR Width : Very wide 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22el | 23b | 23c | 23d | 23e 24 | 25 rate :l|l|2|2|l|2| 2 | 1 2 | 2 | 2 2 | 2

28. REPRESENTATIVE PROFILES: not available

0617&O717 - 32 Page 2 LAND UNIT : D.2.1.2 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Peat domes Peat domes c. Z of Land Unit : 100Z 100Z Z X SLOPES dl. Steepness : < 3Z < 3Z — . — d2. Slope length : > 500 m 201 - 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : troposaprists tropohemists e2. Z Facet - : 601 40Z Z X

23. SOIL CHARACTERISTICS a. USDA Great Group : troposaprists tropohemists

b. Texture: topsoil: Organic material Organic material subsoil: Organic material Organic material c. Depth: peatsoil: Very deep Very deep mineralsoil: d. Drainage : Very, poorly drained Very poorly drained NUTRIENTS : ;-- e. Exch. K: topsoil: subsoil: f. Total K2O: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTHERS : - i. CEC pH 7 topsoil: subsoil: J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Exessively acid k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant — -- n. Salinity (ec) : — — — . -- o. Other toxicity : -- -- — . — p. Root obstr. layer : q. Organic matter (Z) : r. TEB (meq/100 g) :

s. Total anal, profiles: 0 0 0 0

f. LAB CHECK : No No

27. ADDITIONAL NOTES : The soil data are extrapolated from LU D.2.1.3

O617&O717 - 33 LAND UNIT : D.2.1.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

1. LAND UNIT : D.2.1.3 Oligotrophic freshwater peat domes, organic sediment thickness >2.0 m, flat to slightly convex. 2. MAP SHEET : 0717 3. AREA : 83.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 8. AERIAL PHOTOGRAPHS : 1:100.000 R25 /8320-155 9. RADAR : STAR-1/250/88/0717 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z ' a. Weathering : Slight b. Lithology : peat, , c. Formation : Qp , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Swamp 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : peat swamp forest Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3Z, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very»low b. Variability : Low 20. ALTITUDE Minimum : 10 m Range : 10 - 50 m Maximum : 50 m 21. DRAINAGE a.'Pattern: None 24. VALLEY FLOOR Width : Very wide b. Density : Very low 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : None 26. RELIABILITY (i" reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 114a | 14b | 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d |I 23er 1 24 1 25 |

rate : i !| i 1 2 1 2 | 1 2 | 2 1 1 1 3 |1 3 | 3 | 3 1 3 |1 3 1 2 ! 2 1 2 1 2 |

28. REPRESENTATIVE PROFILES: not available

O617&O717 - 34 Page 2 LAND UNIT : D.2.1.3 Mapsheet : 0717 06/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Dome Dome c. I of Land Unit : 1001 100Z Z ' I SLOPES dl. Steepness : < 3Z < 3J — . d2. Slope length : d3. Slope curvature : Straight Straight SOILS el. USDA Class : tropohemists troposaprists ai. X Facet : 60Z 40Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropohemists troposaprists

b. Texture: topsoil: Organic material Organic material subsoil: Organic material Organic material e. Depth: peatsoil: Very deep Very deep mineralsoil: d. Drainage : Very poorly drained Very poorly drained NUTRIENTS : e. Ezch. K: topsoil: subsoil: f. Total K2O: topsoil: subsoil: g. Avail. P: method: topsoil: — — . — subsoil: h. Total P: topsoil: subsoil: OTHERS : . CEC pH 7 topsoil: subsoil: . Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Exessively acid lt. AI sat. topsoil: subsoil: 1. Al toxicity ; n. Acid sulph. pot. : Not relevant Not relevant

B. Salinity (ec) ' -r o. Other toxicity : p. Root obstr. layer : tj. Organic matter (Z) : r. TEB (meq/100 g) : — — —

B. Total anal, profiles: 0 o o o

f. LAB CHECK : No No

27. ADDITIONAL NOTES :

O617&O717 - 35 LAHD UNIT : Au.1.1.1 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Bfq.1.1 - Au. 1.1.1- ». swamp basin b. peat depression

open low vegetation, mostly permanently water looged

1. LAND UNIT : Au.1.1.1 Alluvial plain transition to marine, undifferentiated sediments, swamps with open low vegetation, flat (slopes <35E) 2. MAP SHEET : 0617 3. AREA : 135.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0617- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Slight b. Lithology : clay, sand, c. Formation : Qh 12. WATER a. Quality : Fresh b. Source : Perennial river, 13. FISHERIES : River 14. RIVERS a. Floodrisk water : High b. Floodrisk sed.: Low c. Inundation : Permanent 15. VEGETATION/LAND USE : , swamp, irrigated wetland rice Area used : 50 1 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3Z, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 5 m Maximum : 30 m Range : 10 - 15 m 21. DRAINAGE a. Pattern: None b. Density : Very low 24. VALLEY FLOOR Width : Wide 25. FRAGMEN a. Valleys; Large blocks b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable,. 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl I 22d2 | 2Zel | 23b | 23c I 23d | 23er 24 | 25 | rate : 2 2 | 2 2 | 2 | 2 2 | 2 2 I 2 |

28. REPRESENTATIVE PROFILES: not available

O617&O717 - 36 Page 2 LAND UNIT : Au.ill.1 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb lc b. Description : Back swamp Back swamp Back swamp * — c. X of Land Unit : 100Z 100Z 100Z t SLOPES dl. Steepness : < 3Jt < 3Z < 3* d2. Slope length : 201 - 500 m 201 - 500 m 101 - 200 m d3. Slope curvature : Concave Concave Concave SOILS el. USDA Class . : tropaquents tropohemists tropaquepts e2. X Facet : 55Z 301 .151 Ï

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquents tropohemists tropaquepts

, b. Texture: topsoil: Organic material Organic material Medium subsoil: Moderately coarse Organic material Fine c. Depth: peatsoil: mineralsoil: Moderately deep Deep Very deep d. Drainage : Imperfectly drained Very poorly drained Very poorly drained NUTRIENTS : e. Exch. K: topsoil: subsoil: f. Total K20: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTHERS . i. CEC pH 7 topsoil: subsoil: j. Reaction: topsoil: Moderately acid Strong acid Strong acid subsoil: Strong acid Strong acid Strong acid k. Al sat. topsoil: — -- — subsoil: ------* 1. Al toxicity : D. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : — ' -- — -- q. Organic matter (X) : r. TEB (meq/100 g) :

a. Total anal, profiles: 0 0 0 0

I. LAB CHECK : No No No

27. ADDITIONAL NOTES :

O617&O717 - 37 LAND UNIT : Au.1.1.2 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Bfq.1.1 Au.1.1.2- D.2.1.3 a. swamp basin b. peat depression

mixed trees vegetation, mostly permanently water looged

1. LAND UNIT : Au.1.1.2 Alluvial plain transition to marine, undifferentiated sediments, swamps with mixed vegetation, flat (slopes <3Z) 2. MAP SHEET : 0617 3. AREA : 297.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara lOOZ 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85, 127/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9S /8347-63 , 135S/8323-193 9. RADAR STAR-1/250/88/0617 10. PARENT1 MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Slight b. Lithology : clay, sand, c. Formation : Qh 12. WATER a. Quality : Fresh b. Source : Perennial river. 13. FISHERIES : River 14. RIVERS a. Floodrisk water : Medium b. Floodrisk sed.: Low c. Inundation : Permanent 15. VEGETATION/LAND USE : , swamp, wetland rice Area used : 40 Z 16. ACCELERATED EROSION a. Occurrence ; None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3Z, 0-50 Hi 18. FLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a.- Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 5 m Maximum : 20 m Range : 10 - 15 m 21. DRAINAGE a. Pattern: None b. Density : Vazy low 24. VALLEY FLOOR Width : Very wide 25. FRAGMEN a. Valleys: Large blocks b. Interfluves : None

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b I 19 I 20 j 21b I 22b I 22c | 22dl | 22d2 | 22el | 23b I 23c | 23d | 23er | 24 | 25 rate : 1 1 I 1 I 1 I 1 I 1 I 2 I 2

28. REPRESENTATIVE PROFILES: eqt/ / /89/YH/0617/34/ /115/ eqt/ /89/YH/0617/34/ /117/ iqt/ / /87/TB/0617/63/ /077/ het/ /89/YM/0617/62/ /113/

0617&0717 - 38 Page 2 LAND UNIT :' Au. 1.1.2 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb lc b. Description : Back swamps Backswamps Backswamps c. X of Land Unit : 100Z 100Z 100Z SLOPES dl. Steepness : < 3Z < 3Z < 3Z d2. Slope length : > 500 m 201 - 500 m 50 - 100 m d3. Slope curvature : Concave Concave Straight SOILS el. USDA Class : tropaquents tropohemists tropaquepts e2. X Facet : 601 25Z 15Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquents tropohemists tropaquepts

b. Texture: topspil: Fine Organic material Coarse subsoil: Moderately fine Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep Very deep d. Drainage : Very poorly drained Very poorly drained Very poorly drained HUTMENTS : e. Ezch. K: topsoil: Medium Very low subsoil: High Very low f. Total K20: topsoil: High Very low subsoil: Very high Very low g. Avail. P: method: Bray I Bray I topsoil: Medium Very low subsoil: Very low Very low h. Total P: topsoil: High Very low subsoil: High Very low OTHERS : i. CEC pH 7 topsoil: Medium Very low subsoil: High Very low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessiveiy acid Exessively acid k. Al sat. topsoil: None, very low Medium subsoil: Low Very high 1. Al toxicity : Ho Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 8.3 1.6 r. TEB (meq/100 g) : 10.5 . 0.9 a. Total anal, profiles: 2

f. LAB CHECK : Yes Yes No

27. ADDITIONAL NOTES

0617&0717 - 39 LAND UNIT : Au. 1.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Pf.2.1 - Au.1.2 a. water bodies (river bed and oxbows) b. levees c. backswamps

complex of oxbows, levees, and backswamps

1. LAUD UNIT : Au.1.2 Flood plain of meandering river, undifferentiated sediments, flat (slopes <3Z 2. MAP SHEET : 0717 3. AREA : 1141.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 70X, Riau 301 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 145 /8319-87 , 24 /8320-223 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0* a. Weathering : Slight b. Lithology : clay, , c. Formation : Qh 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : High b. Floodrisk sed.: Low c. Inundation : Seasonal 15. VEGETATION/LAND USE : , bush, scrub, rainfed wetland rice Area used : 40 1 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Flat, slope < 31, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Very low b. Variability : Low 20. ALTITUDE Minimum : 20 m Maximum : 100 in Range : 20 - . 50 m 21. DRAINAGE a. Pattern: Meandering b. Density : Low 24. VALLEY FLOOR Width : Wide 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Small N 0 1 26. RELIABILITY (1= reliable, I probable, 3= tenable, 4= plausible) item | 10b | 12a 114a | 14b | | 20 | 21bI 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er 1 24 1 25 | rate : 1 1 1 1 1 1 1 1 1 | 2 | 2 | 2 | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: iqt/ /88/JH/0717/63/ /125/ iqt/ / /88/MR/0717/63/ /116/ iqt/ /88/YH/0717/62/ /013/ iqt/ / /88/YH/0717/62/ /022/ iqt/ /88/YH/0717/34/ /040/ iqt/ / /89/YM/0617/13/ /071/ ity/ /88/JH/0717/63/ /132/ ity/ / /88/KR/0717/31/ /007/ evt/ /88/KR/0717/22/ /037/ evt/ / /80/KL/0717/32/ /003/ evt/ /88/YM/0717/61/ /034/ O617&O717 - 40 Page 2 LAND UNIT : Au.1.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Back swamp Levees Transitions c. Z of Land Unit : 601 30Z 10Z SLOPES dl. Steepness : 3 - 8Z < 3Z < 3X d2. Slope length : 201 - 500 m 50 - 100 m 50 - 100 m d3. Slope curvature : Concave Convex Straight SOILS el. USDA Class : tropaquepts dystropepts tropofluvents e2. Z Facet : 1001 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquepts dystropepts tropofluvents

b. Texture: -topsoil: Moderately coarse Moderately coarse Medium subsoil: Moderately coarse Moderately, coarse Medium c. Depth: peatsoil: mineralsoil: Deep Extremely deep Very deep d. Drainage : Poorly drained Hell drained Moderately well NUTRIENTS : e. Exch. K: topsoil: Low Medium Low subsoil: Low Low • Low f. Total K2O: topsoil: Low Medium Medium subsoil: Very low Low Medium g. Avail. P: method : Bray I Bray I Bray I topsoil: Low Medium Low subsoil: Low Very low Very low h. Total P: topsoil: Low Low High subsoil: Very low Very low High OTHERS : i. CEC pH 7 topsoil: Low Very low Low subsoil: Low Low Low J. Reaction: topsoil: Exessively acid Exessively acid Strong acid subsoil: Very strong acid Exessively acid Slightly acid t. AI sat. topsoil: Low Low None, very low subsoil: Low Very high None, very low 1. Al toxicity : No Yes No m. Acid sulph. pot. : Not relevant Not.relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer :

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES :

O617&O717 - 41 LAND UNIT : Au. 1.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Hqk.3.3.4 * Au.1.3 •• Hqk.3.3.4 : a. river belt b. narrow colluvi»! footdope

1. LAND UNIT : Au.1.3 Narrow valley bottom within upland, undifferentiated sediments, flat (slopes <3Z). 2. MAP SHEET : 0717 3. AREA : 112.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 14S /8323-41 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL • . 11. ROCK OUTCROP : 0Z a. Weathering : Slight b. Lithology : clay, sand, * ' c. Formation : Qh 12. WATER a. Quality : Fresh b. Source : Perennial river, 13. FISHERIES : River 14. RIVERS a. Floodrisk water : Medium b. Floodrisk sed.: Medium c. Inundation : Seasonal 15. VEGETATION/LAND USE : ., bush, scrub, alang-alang, rainfed wetland rice Area used : 40 Z 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 31, 0-50 m 18. FLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 200 m Maximum : 400 m Range : 250 - 300 m 21. DRAINAGE a. Pattern: Sinuous b. Density : Low 24. VALLEY FLOOR Width : Wide 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Hone

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl I 22d2 | 22el I 23b I 23c I 23d | 23er | 24 | 25

.1 I 2

28. REPRESENTATIVE PROFILES: iqt/ / /89/LH/0717/42/ /118/

0617&O717 - 42 Page 2 LAND UNIT : Au. 1.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Valley floor Valley floor e. Z of Land Unit : 1001 100Z SLOPES dl. Steepness : < 31 < 3Z d2. Slope length : > 500 m 101 - 200 m d3. Slope curvature : Straight Complex SOILS el. USDA Class : tropaquepts fluvaquents e2. Z Facet : 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquepts fluvaquents

b. Texture : topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage Poorly drained Imperfectly drained NUTRIENTS : — e. Exch. K: topaoil: Low subsoil: Medium f. Total K2O: topsoil: High subsoil: High g. Avail: F: method: Bray I topsoil: Very low subsoil: Very low h. Total F: topsoil: Low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Low subsoil: Low j. Reaction: topsoil: Strong acid subsoil: Strong acid k. Al sat. topsoil: None, very low subsoil: None, very low 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) 1.6 r. TES (meq/100 g) : 9.0 a. Total anal, profiles: 1

f. LAB CHECK : Yes No

27. ADDITIONAL NOTES

0617&0717 - 43 LAND UNIT : Au.1.4.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE CROSS SECTION :

Ha. 1.3.3 Au. 1.4.3 Au.1.4.1 -lAu.1.4.2 Mu.2.3.4

Infilled grabeni river belt

1. LAND UNIT : Au.1.4.1 Broad infilled graben, undifferentiated sediments, riverbelt, flat to undulating (slopes <8Z) 2. MAP SHEET : 0717 3. AREA : 69.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 . • 8. AERIAL PHOTOGRAPHS : 1:100.000 US /8348-155 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OZ a. Weathering : Slight b. Lithology : clay, sand, c. Formation : Qh , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : Medium b. Floodrisk sed.: Medium c. Inundation : Seasonal 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, mixed gardens of fruit trees, irrigated wetland rice, towns, village Area used : 60 I 16. ACCELERATED EROSION a. Occurrence : Localised ' b. Evidence : Various 17. TERRAIN : Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows • PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 40 m Range : 100 - 500 m Maximum : 500 m '•• 21. DRAINAGE a. Pattern: Meandering 24. VALLEY FLOOR Width : Wide b. Density : Low 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks 26. RELIABILITY (1- reliable, 2° probable, 3° tenable, 4- plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 rate : .1 1 | I 2 I 2 I

28. REPRESENTATIVE PROFILES: lte/ / /89/LH/0717/14/ /145/

0617&0717 - Page 2 LAND UNIT : Au.1.4.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb 2 b. Description : Levees Levees Depression c. X of Land Unit : 85Z - 851 15Z Z SLOPES dl. Steepness : 3 - 81 < 3Z < 3Z d2. Slope length : 201 - 500 m 201 -.500 m 50 - 100 m d3. Slope curvature : Straight Straight " Straight SOILS el. USDA Class : eutropapts tropofluvents tropaquepts e2. Z Facet : 60Z 40Z 100Z Z

23. SOIL CHARACTERISTICS .a. USDA Great Group : eutropepts tropofluvents tropaquepts

b. Texture: topsoil: Fine Coarse Fine subsoil: Fine Moderately coarse Fine c. Depth: peatsoil: mineralsoil: Very deep Shallow Very deep d. Drainage : Moderately well Moderately well Poorly drained NUTRIENTS : -.— e. Exch. K: topsoil: Very low subsoil: Low I. Total K20: topsoil: Very high subsoil: Very high g. Avail. P: method: Bray I topsoil: Low subsoil: Very low h. Total P: topsoil: High subsoil: High OTHERS : " i. CEC pH 7 topsoil: High subsoil: High j. Reaction: topsoil: Strong acid Strong acid Slightly acid subsoil: Moderately acid Slightly acid Neutral k. Al sat. topsoil: subsoil: 1. Al toxicity : -- — D. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 2.1 r. TEB (meq/100 g) : 12.7, — .

s. Total anal, profiles: 1 0 0 0

f. LAB CHECK : Yes No No

27. ADDITIONAL HOTES : The soil data of Tropofluvents and Tropaquepts are Extrapolated from Land Unit Au.1.4.2

O617&O717 - 45 UNIT : Au.1.4.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION

Infilled grabent flood plain and backswamps

1. LAND UNIT : Au.1.4.2 Broad infilled graben, undifferentiated sediments, flood plain and backswamps, flat (slopes <3I) 2. MAP SHEET : 0717 3 AREA : 288.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES ; 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 14S /8323-51 , IIS /8348-155 9. RADAR STAR-1/250/8B/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Slight b. Lithology clay, sand, c. Formation Qh , 12. WATER a. Quality : Fresh b. Source ; Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : Medium b. Floodrisk sed.: Low c. Inundation Seasonal 15. VEGETATION/LAND USE , bush, scrub, irrigated wetland rice Area used : 80 I 16. ACCELERATED EROSION a. Occurrence None b. Evidence : Not relevant 17. TERRAIN . ; Flat, slope< 31, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : SO m Maximum : 500 m Range : 100 - 500 m 21. DRAINAGE a. Pattern: Meandering b. Density : Moderate 24. VALLEY FLOOR Width : Very wide 25. FRAGMEN a. Valleys: Large blocks b. Interfluves : None

26, RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 rate :l|l|2|2|2|2| 2 | 2 | 2 ] 2| . 2 | 2 | 2 2 I

28. REPRESENTATIVE PROFILES: eqv/ / /89/LH/0717/41/ /080/

0617&0717 - 46 Page 2 LAND UNIT : Au.1.4.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2a 2b b. Description : Floodplalns Backswamps Backswamps c. Z of Land Unit : 60Z 401 40Z Z SLOPES dl. Steepness < 3Z < 3Z 8 - 16Z d2. Slope length : > 500 m 50 - 100 m 50 - 100 m d3. Slope curvature : Straight Straight Straight SOILS el. USDA Class : tropaquepts tropaquents fluvaquents e2. Z Facet : 100Z 70Z 30Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquepts tropaquents fluvaquents

b. Texture: topsoil: Fine Moderately fine Coarse subsoil: Fine Moderately fine Medium c. Depth: peatsoil: mineralsoil: Very deep Very deep Very deep d. Drainage : Poorly drained Poorly drained Imperfectly drained NUTRIENTS : — e. Ezch. K: topsoil: — — Medium subsoil: — — Medium f. Total K20: topsoil: — — Very high subsoil: — -- Very high g. Avail. P: method: — — Bray I topsoil: Very low subsoil: Low h. Total P: topsoil: — — Low subsoil: — — Medium OTHERS : i. CEC pH 7 topsoil: — — Low subsoil: — — Medium J. Reaction: topsoil: Slightly acid Slightly acid Strong acid subsoil: Neutral Neutral Strong acid K. Al sat. topsoil: — — None, very low subsoil: 1. Al toxicity : — -- No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : — q. Organic matter (Z) : — -- 0.7 r. TEB (meq/100 g) : — — 0.6 s. Total anal, profiles: 0 0 10

f. LAB CHECK : No No Yes

27. ADDITIONAL NOTES :

0617&0717 - 47 LAND UNIT : Au.1.4.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE CROSS SECTION :

Au. -Au.1.4.3- Hu.3.3.4 1.4.2 Textural gradient •. fan head finer 4— coarier b. midtan and'fan base

Infilled graben: alluvio • colluvial fan«

1. LAND UNIT : Au.1.4.3 Broad infilled graben, undifferentiated sediments, alluvial/colluvial fan 2. MAP SHEET : 0717 3. AREA : 55.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 US /8323-51 , US /8348-155 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0* ' a. Weathering : Slight b. Lithology : clay, sand, c. Formation : Qh , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : Low b. Floodrisk sed. : Low c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rainfed wetland rice, irrigated wetland rice Area used : 50 Z 16. ACCELERATED EROSION . a. Occurrence : Localised b. Evidence : V\rious 17. TERRAIN : Flat to undulating C0-8Z) 18. PLAN/ Dominant: Not elongated and parallel < 40Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 150 m Maximum : 500 m Range : 200 - 500 m 21. DRAINAGE a. Pattern: Parallel b. Density : Moderately high 24. VALLEY FLOOR Width : Wide 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er I 24 ! 25 I rate :l|l|l|l|l|2| 2 | 2 2 | 2 I 2 | 2 | I 2 | 2 |

28. REPRESENTATIVE PROFILES: ite/ / /89/LH/0717/14/ /145/

0617&0717 - 48 Page 2 LAND UNIT : Au. 1.4.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Flat plains Upper fan surface c. iof Land Unit : 70X 30Z Z X SLOPES dl. Steepness : < 3Z ' 3 - 8Z — — d2. Slope length : 201 - 500 m 50 - 100 m d3. Slope curvature : Concave Undulating SOILS el. USDA Class : tropaquepts eutropepts e2. Z Facet : 100Z 100Z X X

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquepts eutropepts

b. Texture: topsoil: Fine Fine subsoil: Fine . Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Very poorly drained Well drained NUTRIENTS :— e. Exch. K: topsoil: — Very low subsoil: -- Low 1. Total K20: topsoil: -- Very high subsoil: — Very high g. Avail. P: method: — • Bray I — ' topsoil: — Low subsoil: — ' Very low h. Total P: topsoil: — High subsoil: — High OTHERS . i. CEC pH 7 topsoil: -- High subsoil: — High J. Reaction: topsoil: — Strong acid subsoil: — Moderately acid k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free — -- o. Other toxicity : -- -- p. Root obstr. layer : q. Organic matter (Z) : -- 2.1 r. TEB (meq/100 g) : -- 12.7

8. Total anal, profiles: 0 10 0

f. LAB CHECK : No Yes

27. ADDITIONAL NOTES : The soil data Eutropepts are extrapolated from LU Au. 1.4.1

O617&O717 - 49 LAND UNIT : Aa.2.2.1 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Au. Ma.2.2.3 . 1.1.2 b. mîdfan »nd lin bM« b a ÂO.-

bouldtrj ^_3 B%

alluvio-colluvial fans of older volcaniÜc rocks.undulatinfl rcjief

1. LAND UNIT : Aa.2.2.1 Alluvial and colluvial fan, intermediate tuffs, undulating (slopes 3-8Z), slightly dissected 2. MAP SHEET : 0617 3 AREA : 13.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 5Z a. Weathering Slight b. Lithology andesitic tuffs, , c. Formation Qf 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: Low c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, alang-alang, mixed gardens of fruit trees, rainfed wetland rice Area used 70 Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence : Various 17. TERRAIN Undulating 3-8Z, 0-50 m< 18. PLAN/ Dominant Elongated and parallel >|60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude Low b. Variability : Medium 20. ALTITUDE Minimum 25 m Maximum : 50 m Range 30 - 40 m 21. DRAINAGE a. Pattern Parallel b. Density : Low 24. VALLEY FLOOR Width Very wide 25. FRAGMEN a. Valleys Large blocks b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, Z= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 rate : 2 | 1 2 I 2

28. REPRESENTATIVE PROFILES: not available

O617&O717 - 50 Page 2 LAND UNIT : Aa.2.2.1 Mapsheet : 0617 ' 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Depression Interfluves c. X of Land Unit : 70Z 30* X X SLOPES dl. Steepness : < 3X 3 - 8X d2. Slope length ' : 101 - 200 m . 50 - 10O m d3. Slope curvature : Straight Convex SOILS el. USDA Class : tropaquepts dystropepts e2. X Facet : 100X 100X .X X

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquepts dystropepts

b. Texture: topsoil: Moderately fine .Fine subsoil: Fine Fine c. Depth: peatsoil: — -- -- — mineralsoil: Moderately deep Moderately shallow d. Drainage : Poorly drained Well drained NUTRIENTS : : e. Exch. K: topsoil: subsoil: f. Total K20: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: -- — -- -.- . h. Total P: topsoil: subsoil: OTHERS : i. CEC pH 7 topsoil: subsoil: j. Reaction: topsoil: Strong acid Moderately acid subsoil: Strong acid Moderately acid k. Al sat. topsoil: subsoil: 1. Al toxicity : o. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr.- layer : — 39 cm q. Organic matter (X) : r. TEB (roeq/100 g) * : s. Total anal, profiles: 0 0 0 0

t. LAB CHECK : No No

27. ADDITIONAL NOTES :

0617&O717 - 51 LAND UHU : Au.2.2.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Hu.1.3.3 -Au.2.2.1- Textural gradient coarser —• finer

Alluvio-Colluvial fans, undulating relief a. fan head b. midfan and fan base

1. LAND UNIT : Au.2.2.1 Alluvial and colluvial fans, undifferent iated sediments, undulating (slopes 3-8/G), slightly dissected 2. MAP SHEET : 0717 3 AREA : 135.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 12S /8348-197 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Slight b. LithoLogy : clay, sand, c. Formation : Qh 12. WATER a. Quality : Fresh b. Source : Perennial - river, 13. FISHERIES : River 14. RIVERS a. Floodrlsk water : Low b. Floodrisk sed.: Low c. Inundation : Seasonal 15. VEGETATION/LAND USE : , alang-alang, upland crops Area used : 20 X 16. ACCELERATED EROSION . a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Flat to undulating (0-8X) 18. PLAN/ Dominant: Not elongated and parallel < 402 of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude Low b. Variability : Medium 20. ALTITUDE Minimum : 130 m Maximum : 200 m Range : 150 - 175 m 21. DRAINAGE a. Pattern: Parallel b. Density : Moderate 24. VALLEY FLOOR Width : Wide 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1» reliable, 2- probable, 3= tenable, 4= plausible) item | 10b | 12a 14a | 14b | 19 1 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el |I 23b | 23c | 23d | 23er 1 24 11 25 | rate : 1 | 1 1 1 1 1 1 1 1 1 1 2 1 2 | 2 1 1 1 1 1 1 |1. 1 1 1 1 ' 1 2 1| 2 |

Î8. REPRESENTATIVE PROFILES: Jty/ / /88/SS/0717/21/ /062/ /89/LH/0717/42/ /098/

0417W717 - 52 Page 2 LAND UNIT : Au.2.2.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. .Description Interfluves Depressions c. Z of Land Unit 80Z 20 X SLOPES dl. Steepness 3 - 8Z < 31 * d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Convex Concave SOILS el. USDA Class dystropepts tropaquepts e2. X Facet 100* 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth : peatsoil: mineralsoil: Very deep Deep d. Drainage Well drained Very poorly drained NUTRIENTS : — e. Exch. K: topsoil: Low High subsoil: Very low Medium f. Total K2O: topsoil: Low Very high subsoil: Low High g. Avail. F: method : Bray I Bray I topsoil: Medium Low subsoil: Very low Very low h. Total P: topsoil: Medium High subsoil: Medium Medium OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High None, very low subsoil: High Low 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 100 cm q. Organic matter (Z) : 3.5 4.7 r. TEB (meq/100 g) : .0.5 6.2 s. Total anal, profiles: 1 1

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES :

O617&O717 - 53 LAND UHU : Au.2.2.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Hu. Au.2.1.t »ft) .2.1 1.3.3 undulating relief a. interf luve» b. valley bottom

1. LAND UNIT : Au.2.2.2 Alluvial and colluvial fans, undifferentiated sediments, undulating (slopes 3-81), moderately dissected 2. MAP SHEET : 0717 3 AREA : «8.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara' 100Z 5. STATUS IDENTIFIERS ; Updated by : SS Edit date: 31/10/89. Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 10S /8348-145 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Slight b. Lithology clay, sand, c. Formation : Qh , Qf 12. WATER a. Quality Fresh b. Source Perennial river, 13. FISHERIES River 14. RIVERS a. Floodrisk water Low b. Floodrisk sed.: Low c. Inundation ; Seasonal 15. VEGETATION/LAND USE , bush, scrub, alang-alang, upland crops Area used 25 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN Flat to undulating (0-8Z) 18. FLAN/ Dominant Not elongated and parallel < 40Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 150 m Maximum : 200 m Range : 150 - 175 m 21. DRAINAGE a. Pattern: Parallel b. Density : Moderate 2«. VALLEY FLOOR Width : Narrow 25: FRAGMEN ' a. Valleys: Small blocks b. Interfluves : Medium b

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er 24 I 25 I

2 | 2 2 I 2 | 2 | 1 2 I 2 |

28. REPRESENTATIVE PROFILES: ity/ / /88/SS/0717./21/ /062/ iqt/ /89/LH/0717/42/ /098/

O617&O717 - 54 Page 2 LAND UNIT : Au.2.2.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 • 2 b. Description : Interfluves Valley bottoms c. I of Land Unit : 80Z 20J ' Z Z SLOPES dl. Steepness : 3 - 8Z < 3Z — -- d2. Slop« length : 201 - 500 m 50 - 100 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : dystropepts tropaquepts e2. I Facet : 100Z 100Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Deep' d. Drainage : Well drained Very poorly drained NUTRIENTS : e. Exch. K: topsoil: Low ' High subsoil: Very low Medium t. Total K20: topsoil: Low Very high subsoil: Low High g. Avail P: method: Bray I Bray I topsoil: Medium Low subsoil: - Very low Very low h. Total P: topsoil: Medium High subsoil: Medium Medium OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low . Low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High None, very low subsoil: High Low 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free . Salt free o. Other toxicity : p. Root obstr. layer : -- 100 cm q. Organic matter (Z) : 3.5 «.7 r. TEB (moq/100 g) : 0.5 6.2 s. Total anal, profiles: 110 0

f. LAB CHECK : yes Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts and Tropaquepts are extrapolated from Land Unit Au.2.2.1

O617&O717 - 55 LAND UNIT : Au.4.1.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Pf.4.2 •Au.4.1.1-

1. LAND UNIT : Au.4.1.1 River terraces, undifferentiated sediments, flat (slopes <3X), slightly dissecte 2. MAP SHEET : 0717 3. AREA : 46.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final. 7. SATELLITE SCENES : 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 23 /8218-211, T2 /8323-185 9. RADAR : STAR-1/250/88/0717-2/4 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : clay, sand, c. Formation : Qh 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : Low b. Floodrisk sed.: Low c. Inundation : Seasonal 15. VEGETATION/LAND USE :, bush, scrub, upland crops, mixed gardens of fruit trees, tainted wetland rice Area used : 80 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Flat, slope < 31, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 50 m Range : 50 - 100 m Maximum : 100 m 21. DRAINAGE a. Pattern: Parallel 24. VALLEY FLOOR Width : Moderate b. Density : Low 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Medium blocks 26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 25

2|2|2| 2| 2| 2 f 2 2

28. REPRESENTATIVE PROFILES: ite/ / /89/KR/0717/23/ /073/

0617&0717 - 56 Page 2 LAND UHIT : Au.*.1.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la b. Description Terraces (dry land) Terraces (wet land) c. Z of Land Unit 100Z 100Z SLOPES dl. Steepness < 3Z < 3Z d2. Slope length 201 - 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class ëutropepts tropaquepts e2. Z Facet 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : eutropepts tropaquepts

b. Texture: topsoil: Coarse Moderately coarse subsoil: Moderately coarse Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low subsoil: Medium f. Total K20: topsoil: Very high subsoil: Very high g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Very low subsoil: Low J. Reaction: topsoil: Strong acid Neutral subsoil: Moderately acid Slightly acid k. Al sat. topsoil: None, very low subsoil: None, very low 1. Al toxicity : No m. Acid sulph. pot. : Hot relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 1.4 r. TEB (meq/100 g) : 2.8

8. Total anal. profiles :

t. LAB CHECK : Yes No

27. ADDITIONAL NOTES

O617&O717 - 57 LAND UNIT : Au.S Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

MAP IMAGE : CROSS SECTION :

M fq.2.2.4 i. river Channel b. tand bank xx. flood level

1. LAND UNIT : Au.5 Flood plain of braider river, undifferentlated sediments, (undifferentiated) 2. MAP SHEET : 0717 3. AREA : 64.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 10S /8348-145, 12S /8348-197 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 21 a. Weathering : Slight b. Lithology : sand, clay, c. Formation : Qh , 12. WATER a. Quality : Fresh b. Source : Perennial river. 13. FISHERIES : River 14. RIVERS a. Floodrisk water : High b. Floodrisk sed:: High c. Inundation : Seasonal 15. VEGETAT ION/LAND USE : , bush, scrub, swamp, upland crops, wetland rice Area used : 10 Z 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3Z, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Medium 20. ALTITUDE Minimum : 10 m Maximum : 200 m Range : 10 - 200 m 21. DRAINAGE a. Pattern: Braided b. Density : Very low .24. VALLEY-FLOOR Width : Wide . 25. FRAGMEN a. Valleys: Large blocks b. Interfluves : Hone

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el I 23b | 23c I 23d I 23er | 24 | 25

rate :l|l|.2|2|2|2| 2 | 2 | 2 | | 2

28. REPRESENTATIVE PROFILES: iqt/ / /89/YM/0717/13/ /066/

0617&0717 - 58 Page 2 LAND UNIT : Au.5 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb le b. Description : Flood plains Flood plains Flood plains c. Z of Land Unit : 100Z . 1002 100Z Z SLOPES dl. Steepness : < 31 < 3Z < 3Z d2. Slope length : > 500 m > 500 m > 500 m d3. Slope curvature : Straight Straight Straight SOILS el. USDA Class : tropaquepts fluvaquents tropofluvents e2. Z Facet : 60Z 25Z 15Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropaquepts fluvaquents tropofluvents

b. Texture: topsoil: Fine Moderately fine Coarse subsoil: Fine Moderately fine Coarse c. Depth: peatsoil: " . mineralsoil: Very deep Very deep Deep d. Drainage : Poorly drained Imperfectly drained Somewhat exessively NUTRIENTS : e. Exch. K: topsoil: Medium subsoil: Very low f. Total K2O: topsoil: Medium subsoil: Very low g. Avail. P: method: Bray I topsoil: Very low — — -7 subsoil: Very low h. Total P: topsoil: Medium subsoil: Low OTHERS : i. CEC pH 7 topsoil: High —. — ~ . subsoil: High J. Reaction: topsoil: Exessively acid subsoil: Very strong acid -- fc. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : — — 50 cm q. Organic matter (Z) : 16.6 r. TEB (meq/100 g) : 3.9 s. Total anal, profiles: 10 0 0

t. LAB CHECK : Yes No No —

27. ADDITIONAL NOTES :

0617&0717 - 59 LAND UNIT : Bfq. 1.1 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

1. LAND UNIT : Bfq.1.1 Complex of young beach ridges and swales, fine and coarse felsic sediments 2. MAP SHEET : 0617 3. AREA : 107.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1.00Z S. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 10S /8348-151, 9S /8348-61 9. RADAR : STAR-1/250/88/0617- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Slight b. Lithology : sand, clay, c. Formation : Qh 12. WATER a. Quality : Saline b. Source : Rain, Perennial river 13. FISHERIES : Sea 1«. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : Not known 15. VEGETATION/LAND USE : coastal forest on beaches, rubber Area used : 20 X 18. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Flat, slope < 3Ï, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 0 m ' Maximum : 5 m Range : 3 - 5 m 21. DRAINAGE a. Pattern: Parallel b. Density : Very low 24. VALLEY FLOOR Width : Moderate 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4- plausible) Item | 10b | 12a I 14a | 14b |19 I 20 | 21b| 22b | 22c | 22dl | 22d2 I 22el || 23b |1 23c |[ 23d |! 23er 1 24 |1 25 | rate : 1 1 1 1 1 1 1 1 2 1 2 | 2 I 2 I 2 |I 2 I 2 I 2 11 2 1 2 |1 '2 1 2 1 2 1| 2 |

28. REPRESENTATIVE PROFILES: not available

0617&0717 - 60 Pag* 2 LAND UNIT : Bfq. 1.1 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Beach ridges Swales c. 1 of Land Unit : 70Z 30Z Z Z SLOPES dl. Steepness : < 3Z < 3Z — d2. Slope length : > 500 m 101 - 200 m d3. Slope curvature : Convex . Concave SOILS el. USDA Class : tropopsanments tropaquents e2. Z Facet : 100Z 100Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsannients tropaquepts

b. Texture: topsoil: Coarse Moderately coarse subsoil: Coarse Moderately coarse c. Depth: peatsoil: mirieralsoil: Very deep Very deep d. Drainage : Somewhat exessively Very poorly drained NUTRIENTS : • e. Exch. K: topsoil: subsoil: t. Total K20: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: ta. Total P: topsoil: subsoil: OTHERS : i. CEC pH 7 topsoil: subsoil: J. Reaction: topsoil: Slightly acid subsoil: Slightly acid k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : — . — o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : p. TEB (meq/100 g) : s. Total anal, profiles: 0 0 0 0

t. LAB CHECK : No No

27. ADDITIONAL NOTES :

0617&0717 - 61 LAND UNIT : Bu.4.3 Mapsheet : 0617 • LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

a. tidal flat b. tidal deppression c. tidal creek

1. LAND UNIT : Bu.4.3 Tidal flats along shore with mangrove vegetation, undifferentiated sediments, flat (slopes <3Z) 2. MAP SHEET : 0617 3 AREA : 25.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I S. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES ; 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR STAR-1/250/88/0617- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Slight b. Lithology : c lay, , c. Formation : Qp 12. WATER a. Quality : Saline b. Source : Rain, Perennial river 13. FISHERIES : Sea 14: RIVERS a. Floodrisk water : High b. Floodrisk sed.: High c. Inundation : Permanent 15. VEGETATION/LAND USE : mangrove forest Area used : 0 I 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3%, 0-50 m 18. FLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 0 m Maximum : 5 a11 Range : 1 - 4 m 21. DRAINAGE a. Pattern: Hone b. Density : Very low 24. VALLEY FLOOR Width : Wide 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1- reliable, 2- probable, 3= tenable, 4» plausible) item | 10b | 12a | 14a | 14b | 19 I 20 | 21bI 22b | 22c |22dl | 22d2 | 22el | 23b | 23c | 23d I 23er 1 24 1 2S 1 rate :: 1 1 1 1 2 | 2 | 2 | 1 | 2 I' 2 | 2 | 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1

28. REPRESENTATIVE PROFILES: not available

0617&0717 - 62 Page 2 LAND UNIT : Bu.4.3 Mapsheet : 0617 08/12/80

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb — b. Description : Mudflat Mudflat c. X of Land Unit : 100Z 100X X X SLOPES dl. Steepness : < 3X < 3Z — -.- • d2. Slope length : > 500 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : hydraquents sulfaquents e2. X Facet : 701 30X X I

23. SOIL CHARACTERISTICS a. USDA Great Group : hydraquentos sulfaquents

b. Texture: topsoil: Fine Fine subsoil: Fine Fine e. Depth: peatsoil: — Very deep mineralsoil: Very deep Deep d. Drainage : Very poorly drained Very poorly drained NUTRIENTS : •• e. Eich. K: topsoil: subsoil: f. Total K20: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTHERS . i. CEC pH 7 topsoil: subsoil: J. Reaction: topsoil: subsoil: k. Al sat. topsoil: subsoil: 1. Al toxicity : r- m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Very slightly Saline o. Other toxicity : p. Root obotr. layer : q. Organic matter (X) : r. TEB (meq/100 g) : s. Total anal, profiles: 0 0 0 0

f. LAB CHECK : No No

27. ADDITIONAL NOTES : The soil data are extrapolated from Sidikalang sheet (0618)

O617&O717 - 63 LAUD UNIT : Pfq.1.0 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR. 08/12/90

MAP IMAGE :. CROSS SECTION :

Pfq.1.1 summit level unconsolidated deposit flat a. interfluves b. depressions b b —*= < 3%

1. LAND UNIT : Pfq.1.0 Plains, fine and coarse felsic sedimentary rocks, flat (slopes <3X) not dissected 2. MAP SHEET : 0717 3. AREA : 314.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 70X, Riau 30Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 22 /8319-201, 25 /8320-151 9. RADAR : STAR-1/250/88/0717- * 10. PARENT MATERIAL 11. ROCK OUTCRQP : OX . a. Weathering : Partial b. Lithology : sand, clay, c. Formation : Qpml , Tup 12. WATER a. Quality : .Fresh

b. Source : Rain, Perennial river :±... 13. FISHERIES : River 1«. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, grazing land, alang-alang, rainfed wetland rice, rubber, oil palm Area used : 80 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Gulleys 17. TERRAIN : Flat, slope < 31, 0-50 m 18. PLAN/ Dominant! No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 32 m Maximum Range : 40 - 50 m : 50 m -..' 21. .DRAINAGE a. Pattern: None b. Density 24. VALLEY FLOOR Width : Moderate : Very low 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Large blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 I 25

rate :l|l|l|l|2|2| 2 | Z | 2 | 1 | 1 | 1 | 1 | 1 | 1 I 1 |.l|l

'.8. REPRESENTATIVE PROFILES: /89/SS/0717/22/ /108/ iqt/ . /81/BH/0717/34/ /009/

0617&0717 - 64 Pag* 2 LAUD UNIT : Pfq.1.0 Hapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description : Interfluves Depressions c. Z of Land Unit : 60Z 40Z SLOPES dl. Steepness : < 3Z < 3Z d2. Slope length : > 500 m 101 - 200 m d3.. Slope curvature : Straight Concave SOILS el. USDA Class : hapludox tropaquepts e2. Z Facet : 100Z 100Z 0Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox tropaquepts

b. Texture: topsoil: Moderately fine Moderately coarse 'subsoil: Moderately fine Moderately coarse c. Depth: peatsoil: mineralsoil: Very deep Deep d. Drainage : Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Medium Low subsoil: Very low Low f. Total K2O: topsoil: Medium Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Medium Very low subsoil: Very low Very low h. Total P: topsoil: Medium Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Very high Low subsoil: Low Low J. Reaction: topsoil: Exessively acid Strong acid subsoil: Exessively acid Strong acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec> : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 8.4 3.4 r. TEB (meq/100 g) : 4.7 0.8

8. Total anal, profiles:

f. LAB CHECK Yes Yes

27. ADDITIONAL MOTES

0617&0717 - 65 LAND UNIT : Pq.1.0 Mapsheet : 0717 LEEP-SDBM, CSR-BOGQR 08/12/90

HAF IMAGE : CROSS SECTION :

Pq.1.1 Pq.1.0 Au. 1.2 a. depressions b. flat interfluvM

:<5Om

unconjol,dated deposit (sand, gravai)

1. LAND UNIT : Pq.1.0 Plains, coarse felsic sedimentary rocks, flat (slopes <3Z), not dissected 2. MAP SHEET : 0717 3. AREA : 142.7 km2 4. OCCURRENCE by PROVINCE: Riau 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 127/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 24 /8320-209 9. RADAR : STAR-1/250/88/0717-1/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Llthology : sand, , c. Formation : Op 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : Low b. FLoodrisk sed.: None c. Inundation : Seasonal 15. VEGETATION/LAND USE : secondary forest, mixed gardens of fruit trees Area used : 40 X 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3Z, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Very low b. Variability : Low 20. ALTITUDE Minimum : 20 m Maximum : 50 m Range : 30- 40 m 21. DRAINAGE a. Pattern: Parallel b. Density : Very low 24 . VALLEY FLOOR Width : Moderate 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b I 19 I 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el | 23b | 23c I 23d I 23er | 24 | 25 rate :l|l|2|l|2|2 1 I 1 I 1 I 1 I 1 I 1 I

28. REPRESENTATIVE PROFILES: odh/ / /88/YM/0717/64/ /004/ iqt/ /81/NS/0717/34/ /005/ sht/ / /89/KR/0717/32/ /027/ est/ /88/SS/0717/32/ /023/

O617&O717 - 66 Page 2 LAND UNIT : Pq.1.0 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb lc 2 b. Description : Interfluves Interfluves Interfluves Depressions c. X of Land Unit : 75Z 75Z 75Z 25X SLOPES dl. Steepness : < 3Z < 3Z < 3Z < 3Z d2. Slope length : 201 - 500 D 201 - 500 m 201 - 500 m 50 - 100 m cl3. Slope curvature : Straight Straight Straight Concave SOILS el. USDA Class : tropohumods hapludox tropopsamments tropaquepts e2. X Facet : 60Z 25Z 15Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropohumods hapludox tropopsamments tropaquepts

b. Texture: topsoil: Moderately fine Coarse Coarse Medium subsoil: Medium Moderately coarse Coarse Medium c. Depth: peatsoil: — — -- — mineralsoil: Deep Very deep Very.deep Deep d. Drainage : Moderately well Moderately well Moderately well Poorly drained e. Exch. K: topsoil: Very low Very low Very low Low subsoil: Very low Very low Very low Low f. Total K2O: topsoil: Very low Very low Very low Very low subsoil: Very low Very low Very low Very low g. Avail. P: method: Bray I Bray I Bray I Bray I topsoil: Very high Very low Low Very low subsoil: Very low Very low Very low Low h. Total F: topsoil: Very high Very low Low Low subsoil: Very low Very low Very low Low i. CEC pH 7 topsoil: Low Very low Low Medium subsoil: Very low Very low Very low Medium - J. Reaction: ' topsoil: Very strong acid Exessively acid Very strong acid Very strong acid subsoil: Very strong acid Exessively acid Strong acid Very strong acid k. Al sat. topsoil: — Medium — — subsoil: — High — — 1. Al toxicity . : — No -- -- m. Acid sulpb. pot. : Not relevant Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free Salt free o. Other toxicity : — — — — p. Root obstx. layar : — -- — — q. Organic matter (X) : 5.4 2.7 6.6 5.4 r. TEB (meq/100 g) : ' 11.0 0.7 0.5 1.0 s. Total anal, profiles: 1 1 1 1

f. LAB CHECK : Yes Yes Yes • Yes

27. ADDITIONAL NOTES : The soil data of Tropohumods, Tropaquepts and Tropopsaraments are extrapolated from Land Unit Pq.1.1

0617&Û717 - 67 LAND UNIT : Pf.1.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

«ummit level Au.1.2 M.1.1 Pf.3.2 unconsolidotod tedimentary rockt, flat top •. interf luvet b. valley bottom

1. LAND UNIT : Pf.1.1 Plains, tine felsic sedimentary rocks, flat (slopes <3X), slightly dissected 2. MAP SHEET : 0717 3. AREA : 149.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/06/85, 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 155 /8319-177, 145 /8319-85 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : clay, claystone, c. Formation : Tmt 12. WATER a. Quality : Fresh b. Source : Rain, -Perennial river 13. FISHERIES : River • 14. RIVERS a. Floodrisk water : Low b. Floodrisk sed.: Low c. Inundation Seasonal 15. VEGETAT ION/LAND USE : , bush, scrub, savanna, upland crops, rainfed wetland rice Area used : 50 I 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 31, 0-50 m 18. PLAN/ . • Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 60 m Range 55 - 60 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a | 14a I 14b | 19 | 20 | 21b I 22b | 22c I 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

rate :2|l|z|2|2|.2| 2 ) 2 I 2 | 2| 2 | 1 I 1 1 I I 2

28. REPRESENTATIVE PROFILES: ity/ / /88/CD/0717/24/ /017/

O617&O717 - 68 Pag* 2 LAND UHU : Pf.1.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 — b. Description : Interfluves Depressions c. Z of Land Unit : 65* 351 Z X SLOPES dl. Steepness : < 3Z < 3Z d2. Slope length : 101 - 200 m 50 - 100 m — . d3. Slope curvature ': Straight Concave SOILS el. USDA Class : dystropepts tropaquepts eZ. X Facet : 1001 100Z X Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts tropaquepts '

b. Texture: topsoil: ' Moderately coarse Medium subsoil: Moderately fine Moderately coarse c. Depth: peatsoil: mineralsoil: Deep Deep d. Drainage : Well drained Very poorly drained HUTRIENTS : • • Exch. K: topsoil: Low subsoil: Very low f. Total K2O: topsoil: Very low subsoil: Very low g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : : i. CEC pH 7 topsoil: High subsoil: Medium j. Reaction: topsoil: Exessively acid Strong acid subsoil: Very strong acid . Strong acid k. Al sat. topsoil: High subsoil: High 1. Al tojcicity : No m. Acid sulph. pot. : Hot relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 78 cm q. Organic matter (Z) : 3.1 r. TEB (meq/100 g) : 1.0 s. Total anal, profiles: 1 0 0 0 '

f. LAB CHECK : Yes No

27. ADDITIONAL NOTES :

0617&0717 - 69 LAND UNIT : Pfq.1.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

.summit level «- 4 / * — Pfq.1.1 unconsolidated deposit, flat top •. interfluvcs b. valley bottom b

:<50m

1. LAND UNIT : Pfq.1.1 Plains, fine and coarse felsic sedimentary rocks, flat (slopes <3Z), slightly dissected 2. MAP SffiET : 0717 3 AREA : 239.4 km2 4. OCCURRENCE by PROVINCE: Riau 60J, Sumatera Ùtara 40X 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 22 /8319-119 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology claystone; sandstone, c. Formation Qpmi , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrlsk water None b. Floodrisk Bed.: None c. Inundation None 15. VEGETATION/LAND USE , grazing land, alang-alang, rainfed wetland rice, rubber Area used 90 Z 16. ACCELERATED EROSION a. Occurrence None b. Evidence : Landslips 17. TERRAIN Flat, slope < 3Z, 0-50 m 18. FLAN/ Dominant No pronounced highs/lows PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very low b. Variability : Low 20. ALTITUDE Minimum 100 m Maximum : 115 m Range 100 - 115 m 21. DRAINAGE a. Pattern Dendritic b. Density : Low 24. VALLEY FLOOR Width Wide 25. FSAGMEN a. Valleys Medium blocks b. Interfluves : Large block

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

»»«•e :l|l|l|l|2|2| 2J2|2| l| l| l|l|l|i| l |l|l

28. REPRESENTATIVE PROFILES: iqV / /81/NS/0717/34/ /010/ odh/ / /88/JH/0717/54/ /137/ odh/ / /88/JH/0717/54/ /139/

0617&0717 - 70 Fa«« 2 LAND UNIT : Ff«. 1.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description . : Interfluve Depression e. X of Land Unit : 601 «0Z SLOPES dl. Steepness : < 3Z < 3Z d2. Slope length : 201 - 500 50 - 100 m d3. Slope curvature : Straight Concave SOILS el. USDA Class : hapludox tropaquepts 02. Z Facet : 1001 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox tropaquepts

b. Texture: topsoil: Coarse Coarse subsoil: Coarse Coarse e. Depth: peatsoil: i lineralsoil: Very deep Deep d. Drainage Well drained Poorly drained NUTRIENTS : — e. Exch. K: topsoil: Very low Low subsoil: Very low Low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. F: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Low h. Total F: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Very low Medium subsoil: Very low Low J. Reaction: topsoil: Exessively acid Strong acid subsoil: Exessively acid Strong acid k. Al sat. - topsoil: Medium subsoil: Medium 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.2 5.2 r. TEB (meq/100 g) : 0.8 0.8

8. Total anal, profiles: 2

f. LAB CHECK Yes

27. ADDITIONAL NOTES

0617&0717 - 71 LAND UNIT : Pq.1.1 Hapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

-Pq.1.1- Au.1.2 summit level a. interfluvts b. valley bottom

:<50m

unconsolidated deposit (sand, gravels)

1. LAND UNIT : Pq.1.1 Plains, coarse felsic sedimentary rocks, flat (slopes <3X), slightly dissected 2. MAP SHEET : 0717 3. AREA : 757.1 km2 4. OCCURRENCE by PROVINCE: Riau 100Z Î. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85, 127/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 25 /8320-163, 24 /8320-209 9. RADAR : STAR-1/250/88/0717-2/3 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : sand, , c. Formation : Qp 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 1*. RIVERS a. Floodrisk water : Low b. Floodrisk sed.: Low c. Inundation : Seasonal 15. VEGETATION/LAND USE : secondary forest, bush, scrub, shifting cultivation, upland crops Area used 30 X 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 3Z, 0-50 m 18. PLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very low b. Variability : Low 20. ALTITUDE Minimum : 60 m Maximum : 80 m Range : 65 - 75 m 21.- DRAINAGE a. Pattern: Parallel b. Density : Low 24. VALLEY FLOOR Width : Moderate 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Large blocks

26. RELIABILITY (1- reliable, I i probable, 3= tenable, 4= plausible) item | 10b | 12a 114a | 14b | ( D t O I 20 | 21b ! 22b | 22c | 22dl | 22d2 | 22el 1 23b |23c t 23d I 23er 12« 1 25 1 rate : 1 1 1 1 1 I 1 1 l 1 2 | 1 1 1 1 1 1 l' 1 t H 1 1 t H 1 1 1 1 1 1 1 1 1 1 1

28. REPRESENTATIVE PROFILES: •ht/ / /89/KR/0717/32/ • /027/ odh/ /88/YH/0717/34/ /04B/ Odh/ / /88/KR/0717/32/ /022/ iqt/ /81/NS/0717/34/ /005/ •S)t/ / /88/SS/0717/32/ /023/

O617&O717 - 72 Fa«« 2 LAND UNIT : Fq.1.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb lc 2 b. Description : Interfluves Interfluves Interfluves Depressions c. X of Land Unit : 751 75Z 75Z 25Z SLOPES dl. Steepness : < 3* < 3Z < 3Z •<: 3Z d2. Slope length : 201 - 500 m 201 - 500 m 201 - 500 m 50 - 100 m d3. Slope curvature : Straight Straight Straight Concave SOILS el. USDA Class : tropohumods hapludox tropopsannents tropaquepts e2. X Facet : 60Z 25Z 15Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropohumods hapludox tropopsanments tropaquepts

b. Texture: topsoil: Moderately fine Coarse Coarse Medium subsoil: Medium Moderately coarse Coarse Medium c. Depth: peatsoil: — — — — mineralsoil: Deep Very deep Deep Deep d. Drainage : Moderately well Moderately well Moderately well Poorly drained e. Exch. K: topsoil: Very, low Very low Very low Low subsoil: Very low Very low Very low Low f. Total K20: topsoil: Very low Very low Very low Very low subsoil: Very low Very low Very low Very low g. Avail. F: method: Bray I Bray I Bray I Bray I topsoil: Very high Very low Low Very low subsoil: Very low Very low Very low Low h. Total P: topsoil: Very high Very low Low Low subsoil: Very low Very low Very low Medium i. CEC pH 7 topsoil: Low High Low Medium subsoil: Very low Low Very low Medium j. Reaction: topsoil: Very strong acid Exessively acid Very strong acid Very strong acid subsoil: Very strong acid Exessively acid Very strong acid Very strong acid k. Al sat. topsoil: High Medium — — subsoil: . Medium Medium -- — 1. Al toxicity : No No — — m. Acid sulph. pot. : Not relevant Not relevant Not' relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free Salt free o. Other toxicity : — — -- — p. Root obstr. layer : — -- 85 cm q. Organic matter (Z) : 5.4 1.3 6.6 5.4 r. TEB (meq/100 g) : 11.0 2.7 0.5 1.0 s. Total anal, profiles: 1 2 1 1

t. LAB CHECK : Yes Yes Yes Yes

27. ADDITIONAL NOTES

0617&0717 - 73 LATO UNIT : Pf.2.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/80

MAP IMAGE : CROSS SECTION :

summit level Pf.2.1 Pf.1.1 unconsolidated sedimentary rocks, flat top a. interfluves 5 b. valley bottom ; .

:<50m

1. LAND UNIT : Pf.2.1 Plains, fine felsic sedimentary rocks, flat to undulating (slopes <8Z), slightly dissected 2. MAP SHEET : 0717 3. AREA : 103.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 60Ï, Riau 40* 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 155 /8319-177, 22 /8319-213 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : clay, claystone, c. Formation : Tup , Tmt 12. WATER a. Quality ; Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed. : None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, oil palm Area used : 60 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN . : Flat to undulating (0-8Z) 18. FLAN/ Dominant: No pronounced highs/lows PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 75 m Range : 50 - 60 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low ' 24. VALLEY FLOOR Width Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item I 10b I 12a | 14a | 14b | 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el I 23b | 23c | 23d | 23er | 24 I 25 rate :l|l|2|2|2|2| 1 | 2 | 2 2 I 0 I 0 I 0 f 0 I I 2 I 1 I

28. REPRESENTATIVE PROFILES: ity/ / /88/CD/0717/24/ /017/ uda/ /88/KR/0717/31/ /004/

O617&O717 - 74 Fas* 2 LAUD OHIT : Ff.2.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms e. Z of Land Unit : 80Z 80Z 20Z SLOPES dl. Steepness : 3 - 8Z 3 - 8Z < 3Z d2. Slope length : 101 - 200 a 101 - 200 m < 50 m d3. Slope curvature : Straight Straight Concave SOILS el. USDA Class : dystropepts hapludults tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults tropaquepts

b. Texture: topsoil: Moderately coarse Moderately fine Medium subsoil1: Moderately fine Moderately fine Moderately coarse c. Depth: peatsoil: mineralsoil: Deep Extremely deep Deep d. Drainage : Imperfectly drained Well drained Very poorly drained NUTRIENTS : e. Exch. K: topsoil: Low High subsoil: Very low Low f. Total K2O: topsoil: Very low Very high subsoil: Very low Low g. Avail. P: method: Bray I Bray I topsoil: Very low Medium subsoil: Very low Very low h. Total P: topsoil: Very low Medium subsoil: Very low Low OTHERS . i. CEC pH 7 topsoil: Low Medium subsoil: Very low Low j, Keaction: topsoil: Exessively acid Very strong acid Strong acid subsoil: Very strong acid Very strong acid Strong acid k. Al sat. topsoil: High None, very low subsoil: High High 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z): 3.1 4.4 r. TEB (meq/100 g) : 0.8 7.4 s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES The soil data of Dystropepts & Tropaquepts are extrapolated from LU Pf.1.1 and the data of Hapludults are from LU Pf.3.1

O617&O717 - 75 LAND UNIT : dPf.2.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION

dPf.2.V_y ? <5Om

dacite cover. a. interfluves b. valley bottom

ï„iAND UNIT : dPf.2.1 Plains, fine felsic sedimentary rocks, flat to undulating (slopes

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el I 23b | 23c I 23d | 23er | 24 | 25

rate :l|l|l|l|l|l| 2 I 2 | 2 1 I 1 I 1

28. REPRESENTATIVE PROFILES: odh/ / /89/SS/0717/22/ /112/

O617&O717 - 76 Fag* 2 LARD UNIT : dPf.2.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. identifier : 1 b. Description : Interfluves Valley bottoms c. I of Land Unit : 851 15Z SLOPES dl. Steepness : 0 - 8Z < 3Z 02. Slope length : 101 - 200 m 50 - 100 m d3. Slope curvature : Straight Concave SOILS el. USDA Class : hapludults tropaquepts »2. X Facet : 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults tropaquepts

b. Texture: topsoil: Fine Moderately coarse subsoil: Fine Moderately fine c. Depth: peatsoil: mineralsoil: Deep Moderately. deep d. Drainage : Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Medium subsoil: Medium f. Total K20: topsoil: Medium subsoil: Medium g. Avail. P: method : Bray I topsoil: Very low subsoil: Very low h. Total P: 'topsoil: Very low subsoil: Very low OTHERS : 1. CEC pB 7 topsoi 1 : Medium subsoil: High J. Reaction: topsoil: Very strong acid subsoil: Very strong acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 2.3 r. TEB (meq/100 g) : 9.7 s. Total anal, profiles:

f. LAB CHECK

27. ADDITIONAL NOTES : The soil data of Hapludults are extrapolated from. dPf.5.2

0617&O717 - 77 LAND UNIT : Pfq.2.1 Mapsheet : 0717 UŒF-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

tummil level 'Wq.2.1 Au. 1.2 unconsolidated sedimentary rockt, flat top a. interfluves b. valley bottom b b -*= <8%

i50m

1. LAND UHIT : P£q.2.1 Plains, fine and coarse felsic sedimentary rocks, flat to undulating (slopes <8I), slightly dissected 2. MAP SHEET : 0717 3 AREA : 195.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 30*, Riau 70* 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 25 /8320-153, 25 /8320-152, 12S /8320-105 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology claystone, sandstone, c. Formation Qpmi , 12. WATER a. Quality : Fresh b. Source : Rain,-Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation ; None 15. VEGETATION/LAND USE : logged forest, bush, scrub, grazing land, alang-alang, rainfed wetland rice, rubber Area used : 60 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Flat to undulating (0-81) 18. PLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Very low b. Variability : Low 20. ALTITUDE Minimum : 50 m .Maximum : 125 m Range : 75 - 90 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Medium blocks . b. Interfluves : Large blocks

26. RELIABILITY (1- reliable, 2- probable, 3= tenable, 4= plausible) Item | 10b | 12a | 14a | 14b | 19 I 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el || 23b | 23c | 23d |I 23er 1 24 |1 25. | rate : 1 11 1 1 1 I 1 1 2 1 2 | 2 1 2 | 2 | 1 1 1 1 1 1i 1 1 1 1 1 11 1 1 1 11 1 1

28. REPRESENTATIVE PROFILES: ódh/ / /89/SS/0717/22/ /112/ udk/ /89/KR/0717/32/ /069/ odh/ / /88/YH/0717/64/ /001/

0617&0717 - 78 Page 2 LAND UNIT : Pfq.2.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 85Z 85Z 15Z SLOPES dl. Steepness : 0 - 8Z 0 - 8Z < 31 d2. Slope length : 101 - 200 m 101 - 200 m 50 - 100 D d3. Slope curvature : Straight. Straight Concave SOILS el. USDA Class hapludox kandiudults tropaquepts e2. X Facet : 60Z 401 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox kandiudults tropaquepts

b. Texture: topsoil: Moderately fine Moderately coarse Coarse subsoil: Moderately fine Moderately fine Coarse e. Depth: peatsoil: mineralsoil: Very deep Very deep Deep d. Drainage Well drained Well drained NUTRIENTS : — e. Exch. K: topsoil: Low Very low subsoil: Very low Very low f. Total K20: topsoil: Low Very low subsoil: Low Very low g. Avail. F: method: Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Low Low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Very low J. Reaction: topsoil: Exessively acid Strong acid Strong acid subsoil: Exessively acid Very strong acid Strong acid k. Al sat. topsoil: Low Low subsoil: High High 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity . : p. Root obstr. layer : 149 cm q. Organic matter (X) : 5.3 4.0 r. TEB (meq/100 g) : 1.3 1.8 s. Total anal, profiles:

f. LAB CHECK : Yes Yes No

27. ADDITIONAL NOTES

O617&O717 - 79 LAND UNIT : Pq.2.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/80

HAF IMAGE : CROSS SECTION :

Pfq.3.1 Pq.2.1 a. interfluves b. valley bottom

.unconsolidated deposit (sand, gravels)

1. LAND UNIT : Pq.2.1 Plains, coarse felsic sedimentary rocks, flat to undulating (slopes slightly dissected 2. MAP SHEET : 0717 3 AREA : 178.3 km2 4. OCCURRENCE by PROVINCE: Riau 100* 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 24 /8320-211 9. RADAR STAR-1/250/88/0717-3-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Ï a. Weathering Partial b. Lithology sand, , c. Formation Qp 12. HATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, rainfed wetland rice Area used 30 Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence : -Various 17. TERRAIN Flat to undulating (0-8Z) 18. PLAN/ Dominant No pronounced highs/lows PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very low b. Variability : Low 20. ALTITUDE Minimum 50 m Maximum : 75 m Range 60 - 70 m 21. DRAINAGE a. Pattern Dendritic b. Density : Low 2«. VALLEY FLOOR Width Narrow 25. FRAGMEN a. Valleys Small blocks b. Interfluves : Large blocks

26. RELIABILITY (I- reliable, 2= probable, 3- tenable, 4» plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c | 22dl I 22d2 I 22el | 23b I 23c | 23d I 23er | 24 | 25 rate : 1 1 I 1 I 1 I 2 | 2 | 2 I 2 I 1 I 1

28. REPRESENTATIVE PROFILES: odh/ / /89/KR/0717/34/ /025/ odh/ / /B9/JH/0717/54/ /135/ •ht/ . / /89/KR/0717/32/ /027/ est/ / /88/SS/0717/32/ /023/ Odh/ / /88/JH/0717/54/ /140/ odh/ / /87/KR/0717/S4/ /088/ Odh/ / /88/YH/0717/34/ /050/ 0617&O717 - 80 Page 2 LAND UNIT : Pq.2.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb lc 2 b. Description : Interfluves Interfluves Interfluves Depressions c. Z of Land Unit : 85Z 85Ï 85Z 15Z SLOPES dl. Steepness : 0 - 8Z 0-8% 0 - 8Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m 101 - 200 m 50 - 100 m d3. Slope curvature : Straight Straight Convex Concave SOILS el. USDA Class : tropohumods hapludox tropopsamments tropaquepts e2. Z Facet : 60Z 30Z 10Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropohumods hapludox tropopsaranents tropaquepts

b. Texture: topsoil: Moderately coarse Moderately coarse Coarse Medium subsoil: Moderately coarse Moderately coarse Coarse Medium c. Depth: peatsoil: -- — — — mineralsoil: Moderately deep Very deep Deep Deep d. Drainage Moderately well Well drained Moderately well Poorly drained e. Exch. K: topsoil: Very low Medium Very low — subsoil: Very low Very low Very low -- f. Total K2O: topsoil: Very low Medium Very low — subsoil: Very low Very low Very low — g. Avail. P: . method : Bray I Bray I Bray I — topsoil: Very low Very high Low subsoil: Very low Very low Very low h. Total P: topsoil: High Low Low -- subsoil: Very low Very low Very low — i. CEC pH 7 topsoil: High Very high Low — subsoil: Medium Low Very low -- j. Reaction: topsoil: Exessively acid Exessively acid Very strong acid Very strong acid subsoil: Very strong acid Exessively acid Very strong acid Very strong acid k. Al sat. topsoil: High Medium -- ' —

subsoil: Medium High — , •--

1. Al toxicity No No — — m. Acid sulph. pot. : Not relevant Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free Salt free o. Other toxicity : — — — — p. Root obstr. layer : 74 cm -- 85 cm — q. Organic matter (I) : 12.6 6.3 6.6 r. TEB (meg/100 g) : 1.2 2.3 0.5 — s. Total anal. profiles: 1 5 1 0

f. LAB CHECK Yes Yes Yes No

27. ADDITIONAL NOTES : The soil data of Tropohumods and Tropopsamnents are extrapolated • from Pq.1.1

0617&O717 - 81 LAUD UNIT : Ft.3.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

^summit level Pf 3 1 Pf.4.2 unconsolidated «edimenury rockt, flat top a. interfluves b. valley bottom

V <60m

1. LAND UNIT : Pf.3.1 Plains, fine felsic sedimentary rocks, undulating (slopes 3-81), slightly dissected 2. MAP SHEET : 0717 3 AREA : 130.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 901, Riau 101 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 145 /8319-85 , 145 /8319-79 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology claystone, , c. Formation Tup , 12. HATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed. : None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, alang-alang, upland crops, oil palm, rubber Area used 60 Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence : Gulleys 17. TERRAIN Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant Elongated and random > 60% of area flat-topped PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Low 20. ALTITUDE Minimum 65 m Range 70 - 80 m Maximum : 80 m 21. DRAINAGE a. Pattern Dendritic 24. VALLEY FLOOR Width Narrow b. Density : Low 25. FRAGMEN a. Valleys Small blocks b. Interfluves : Large blocks 26. RELIABILITY (1- reliable, 2" probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 I 25

r«t, : 1 I 1 I 1 I

28. REPRESENTATIVE PROFILES: uda/ / /88/KR/0717/31/ /004/ iqt/ /89/SS/0717/32/ /070/ ity/ / /89/SS/0717/32/ /071/

O617&0717 - 82 Page 2 LAND UNIT : Pf.3.1 Mapsheet : 0717 08/12/90

22. FACETS. SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 85Z 85Z 15Z SLOPES dl. Steepness : 3 - 8Z 3 - 8Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex • Concave SOILS el. USDA Class : hapludults dystropepts tropaquepts e2. Z Facet 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine Medium subsoil: Fine Moderately coarse Medium c. Depth: peatsoil: mineralsoil: Deep . Very deep Very deep d. Drainage : Well drained Moderately well Poorly drained HUTRIENTS : e. Exch. K: topsoil: Medium Low Very low subsoil: Low Low • Low f. Total K20: topsoil: Medium Medium Low subsoil: Low Medium Low g. Avail. P: method: Bray I Bray I Bray I topsoil: Low Low Very low subsoil: Very low Very low Very low h. Total P: topsoil: Medium Medium Medium subsoil: Very low Very low Low OTHERS : i. CEC pH 7 topsoil: Very high Very high Very high subsoil: High Very high Very high J. Reaction: topsoil: Very strong acid Very strong acid Moderately acid subsoil: Very strong acid Exessively acid Very strong acid k. Al sat. topsoil: Low Medium None, very low subsoil: Very high Very high High I. Al toxicity : Yes Yes Yes n>. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 99 cm 120 cm 80 cm q. Organic matter (Z) : 3.5 4.4 4.4 r. TEB (meq/100 g) : 13.5 9.8 • 7.4

s. Total anal, profiles: 1

1 f. LAB CHECK : Yes Yes Yes

27. ADDITIONAL NOTES :

0617&0717 - 83 LAHD UNIT : dPf.3.1 ' Mapsheet : 0717 LBEP-SDBM. CSR-BOGOR 08/12/90

- HAF IMAGE : CROSS SECTION :

<60m

dacite cover, interfluves b. valley bottom

1. LAND UNIT : dP£.3.1 Plains, fine felsic sedimentary rocks, undulating (slopes 3-82), covered with acid tuffs, slightly dissected 2. MAP SHEET : 0717 3, AREA : 96.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 05/09/90 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS. : 1:100.000 9. RADAR STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 2X a. Weathering : Partial b. Lithology : clay, liparite, c. Formation : Tmt 12. WATER a. Quality ; Fresh b. Source : Rain, Perennial river 13. FISHERIES ' : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : Not relevant 15. VEGETATION/LAND USE ; , bush, scrub, alang-alang, upland crops, mixed gardens of fruit trees, rainfed wetland rice Area used : 90 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating 3-8X, 0-50 m 18. PLAN/ Dominant: Not elongated and random 40-60Z of ea crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Medium b. Variability : Medium 20. ALTITUDE Minimum 50 m Maximum : 75 m Range : 60 - 65 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low 24. VALLEY FLOOR Width Narrow 25. FRAGMEN a. Valleys: Medium blocks b. Interfluves : Large blocks

26. RELIABILITY (1*- reliable, 2- probable, 3= tenable, 4= plausible)

item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d I 23er | 24 | 25

rate :l|l|l|l|l|l| 1 | 2 | 2 | 2| 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2

28. REPRESENTATIVE PROFILES: uda/ / /88/LH/0717/52/ /048/

0617&0717 - 84 Page 2 LAND UNIT : dPf.3.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description : Interfluves Valley bottoms c. I of Land Unit : 8SZ 15Z SLOPES dl. Steepness : 3 - 8Z < 3Z d2. Slope length : 101 - 200 m 50 - 100 m d3. Slope curvature : Straight Concave SOILS el. USDA Class : hapludults tropaquepts e2. Z Facet : 100Z 100Z

23. SOIL CHARACTERISTICS a, USDA Great Group : hapludults tropaquepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Deep Moderately deep d. Drainage : Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Medium subsoil: Medium f. Total K20: topsoil: Medium subsoil: Medium g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Medium subsoil: High j. Reaction: topsoil: Very strong acid subsoil: Very strong acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (I) : 2.3 r. TEB (meq/100 g) : 9.7 s. Total anal', profiles:

f. LAB CHECK No

27. ADDITIONAL NOTES : The soil data of Hapludults and Tropaquepts are extrapolated from dPf.5.2

0617&0717 - 85 LAND UHIT : Pfq.3.1 . Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

^summit level Pfq,.3.1 unconsolidated sedimentary rocki, flat top a. interfluves b. valley bottom b b 3-8%

1. LAND UNIT : Pfq.3.1 Plains, fine and coarse felsic sedimentary rocks, undulating (slopes 3-8Z), slightly dissected 2. MAP SHEET : 0717 3 AREA : 508.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 50Z, Riau 50Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 25 /8320-159, 25 /8320-163, 2 /8323-179 9. RADAR : STAR-1/250/88/0717-05 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : claystone, sandstone, c. Formation : Qpmi , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 1«. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, rainfed wetland rice, oil palm Area used : 50 Z 16. ACCELERATED EROSION a. Occurrence : Localised .b. Evidence : Various 17. TERRAIN : Undulating 3-8X, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 75 m Maximum : 100 m Range : 80 - 90 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low 2«. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 rote :l|l|l|l|2|2| 2 | 2 I 1 I 1.1

28. REPRESENTATIVE PROFILES: odh/ / /88/YH/0717/64/ /007/ udk/ /88/JH/0717/63/ /115/ udk/ / /88/YH/0717/62/ /029/ udk/ /B8/YM/0717/64/ /086/ odh/ / /89/YH/0717/62/ /035/

06X7&0717 - 86 Page 2 LAND UNIT : Pfq.3.1 Hapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. t of Land Unit : 901 • 90Z 10Z SLOPES dl. Steepness : 3 - BX 3 - 8Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m 50 - 100.m d3. Slope curvature : Convex Convex Cone ave SOILS el. USDA Class : kandiudults hapludox tropaquepts e2. Z Facet : 60 Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludox tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine Coarse subsoil: Moderately fine Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep Deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exeh. K: topsoil: High Very low Low subsoil: Low Very low Low f. Total K2O: topsoil: Very high Very low Very low subsoil: Low Very low Very low g. Avail. P: method: Bray I Bray I Bray I topsoil: Very high Very low Low subsoil: Very low Very low Low h. Total P: topsoil: Medium Very low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Very low Medium subsoil: Very low Very low Low j. Reaction: topsoil: Very strong acid Exessively acid Strong acid subsoil: Exessively acid Exessively acid Strong acid k. Al sat. topsoil: None, very low High subsoil: Medium High 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt .free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 6.6 1.9 5.2 r. TEB (meq/100 g) : 6.9 1.1 0.8 s. Total anal, profiles:

f. LAB CHECK : Yes Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropaquepts are extrapolated from Pfq.1.1

O617&O717 - 87 LAND UNIT : Pq.3.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

HAP IMAGE : CROSS SECTION :

unconjolidated deposit hand, gravel)

1. LAND UNIT : Pq.3.1 Plains, coarse felsic sedimentary rocks, undulating (slopes 3-81), slightly dissected 2. MAP SHEET : 0717 3. AREA : 152.3 km2 4. OCCURRENCE by PROVINCE: Riau 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit data: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 24 /8320-211 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : sand, sandstone, c. Formation : Qp , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, upland crops, rubber Area used : 30 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating 3-81, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60? of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 35 m Maximum : 65 m Range : 40 - 60 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low .24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

2|2|2| 2| I 2 I 2

28. REPRESENTATIVE PROFILES: odh/ / /89/KR/0717/32/ /019/ iqt/ /81/NS/0717/34/ /005/ est/ / /88/SS/0717/32/ /023/

0617&0717 - 88 Fa«« 2 LARD UNIT : Fq.3.1 Mopsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms e. X of Land Unit : 70X 701 30Z SLOPES dl. Steepness : 3 - 8X 3 - 8X < 31 d2. Slope length : 101 - 200 m 101 - 200 m 50 - 100 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : hapludox tropopsamments tropaquepts e2. X Facet 70Z 30Z 1001

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox tropopsaranents tropaquepts

b. Texture: topsoil: Moderately coarse Coarse Medium subsoil: Moderately coarse Coarse Medium c. Depth: peatsoil: mineralsoil: Very deep Deep Deep d. Drainage : Well drained Moderately well Poorly drained NUTRIENTS : e. Exch. K: topsoil: Medium Very low Low subsoil: Very low Very low Low f. Total K2O: topsoil: Medium Very low Very low subsoil: Very low Very low Very low g. Avail. P: method : Bray I Bray I Bray I topsoil: Very high Low Very low subsoil: Very low Very low Low h. Total P: topsoil: Low Low Low subsoil: Very low Very low Low OTHERS :--- i. CEC pH 7 topsoil: Very high Low Medium subsoil: Low Very low Medium J. Reaction: topsoil: Exessively acid Very strong acid Very strong acid subsoil: Exessively acid Very strong acid Very strong acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 85 cm q. Organic matter (Z) : 6.3 6.6 5.4 r. TEB (meq/100 g) : 2.3 0.5 1.0 s. Total anal, profiles: 1

f. LAB CHECK ïes Yes

27. ADDITIONAL NOTES : The soil data of Tropaquepts and Tropopsamments are extrapolated from Pq.1.1

0617&0717 - 89 LAND UNIT : Pf.3.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION

il level Pt.3.2 uncon$olidated sedimentary rocks, flat top a. interfluves b. valley bottom b

:50 m

1. LAND UNIT : P£.3.2 Plains, fine felsic sedimentary rocks, undulating (slopes 3-8%), moderately dissected 2. MAP SHEET : 0717 3 AREA : 232.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 80Z, Riau 201 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 25 /8320-169 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0* a. Weathering Partial b. Lithology clay, claystone, c. Formation Tmt 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water Hone b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, swamp, alang-alangr oil palm, rubber Area used 60 Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence 17. TERRAIN Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant Elongated and random A0—602 of area flat-topped PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Low 20. ALTITUDE Minimum 70 in Maximum : 110 m Range 75 - 100 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moder*Ite 24. VALLEY FLOOR Width Narrow 25. FRAGMEN a. Valleys Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d I 23er I 24 | 25 rate :2|l|l|2|2|2| 2 I 2 | 2 | 2 | 2 | 1 I 1

28. REPRESENTATIVE PROFILES: ity/ / /80/KL/0717/32/ /002/ ity/ /88/YH/0717/32/ /059/ uda/ / /88/KR/0717/31/ /004/

O617&O717 - 90 Page 2 LAND UHU : Pf.3.2 Mapshent : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluveses Interfluvess Valley bottoms c. Z of Land Unit : 85Z 85Z 15Z SLOPES dl. Steepness : 3 - 8Z 3 - 8Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave ' SOILS el. USDA Class : hapludults dystropepts tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Coarse Fine subsoil: Fine Coarse Fine c. Depth: peatsoil:' mineralsoil: Deep Very deep Very deep d. Drainage : Well drained Somewhat exessively Imperfectly drained NUTRIENTS : e. Exch. K: topsoil: Medium Medium subsoil: Low Low f. Total K20: topsoil: Medium Medium subsoil: Low Low g. Avail. F: method: Bray I Bray I topsoil: Low Very high subsoil: Very low Very low h. Total P: topsoil: Medium High subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Very high Low subsoil: High Very low J. Reaction: topsoil: Very strong acid Neutral subsoil: Very strong acid Moderately acid k. Al sat. topsoil: Low None, very low subsoil: Very high None, very low 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : — p. Root obstr. layer : 99 cm q. Organic matter (Z) : 3.5 5.8 r. TEB (meq/100 g) : 13.5 3.8 s. Total anal, profiles: 1 0

t. LAB CHECK : Yes No

27. ADDITIONAL HOTES : The soil data of Hapludults are extrapolated from LU Pf.3.1

0617&0717 - 91 LAND UNIT : Pfq.3.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/30

HAP IMAGE : CROSS SECTION :

.tummit level Pfq.3.2 * Pq.1.1 uncontolidated sedimentary rocks, flat top a. interfluvm b. valley bottom -. b b t b ^3-8%

:50

1. LAND UNIT : Pfq.3.2 Plains, fine and coarse felsic sedimentary rocks, undulating (slopes 3-8X), moderately dissected 2." MAP SHEET : 0717 3 AREA : 21.4 km2 4. OCCURRENCE by PROVINCE: Riau 100* 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/65, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS ; 1:100.000 R24 /8320-223 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology : claystone, sandstone, c. Formation Qpmi , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 1«. RIVERS a. Floodrisk water : None b. Floodrisk sod.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rainfed wetland rice, oil paljn Area used : 60 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant; Not elongated and random 40-60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 75 m Range : 60 - 75 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 2«. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= piausible) itenl | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl f 22d2 | 22el | 23b | 23c | 23d | 23er 1 24 125 1 rate, : 1 |1 I' 1 1 1 1 2 1 2 | 2 1 2 | 2 f 2 1 2 | 1 l' 1 1 1 1., C M 1. 2 1

28. REPRESENTATIVE PROFILES: odh/ / /88/YH/0717/64/ /007/ iqt/ /81/NS/0717/34/ /010/ udk/ / /88/YH/0717/62/ /029/

O617&0717 - 92 Page 2 LAND UNIT : Ffq.3.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. Z of.Land Unit : 90Z 90Z 10Z SLOPES dl. Steepness : 3-81 3 - 8Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature :. Convex Convex Concave SOILS el. USDA Class : kandiudults hapludox tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludox tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine Coarse subsoil: Moderately fine Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Deep Very deep Deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: High Very low Low subsoil: Low Very low Low f. Total K20: topsoil: Very high Very low Very low subsoil: Low Very low Very low g. Avail. P: method : . Bray I Bray I Bray I topsoil: Very high Very low Low subsoil: Very low Very low Low h. Total P: topsoil: Medium Very low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Very low Medium subsoil: Very low Very low Low j. Reaction: topsoil: Very strong acid Exessively acid Strong acid subsoil: Exessively acid Exessively acid Strong acid k. Al sat. topsoil: None, very low High subsoil: Medium High 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 6.6 1.9 5.2 r. TEB (meq/100 g) : 6.9 1.1 0.8

8. Total anal, profiles: 1

f. LAB CHECK Yes Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropaquepts are extrapolated from Pfq.1.1 The data of Kandiudults and Hapludox are extrapoted from Pfq.3.1

O617&O717 - 93 LAND UNIT : Pfq.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BCGOR 08/12/90

MAP IMAGE : CROSS SECTION :

<50m

1. LAND UNIT : Pfq.3.3 Plains, fine and coarse felsic sedimentary rocks, undulating (slopes 3-8Z), strongly dissected

2. MAP SHEET : 0717 3 AREA : 1.0 km2 4. OCCURRENCE by ;FROVINCE : Riau 10OX 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 R24 /8320-223 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : clay, sand, c. Formation : Qpmi , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , upland crops Area used : 60 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE . a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 75 m Range : 60 - 75 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEÏ FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a | 14a | 14b | 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 I 22el I 23b I 23c | 23d | 23er I 2* | 25 | rate :l|l|2|2|l|2| 2 | 1 1 | 1 I 2 | 1 |

28. REPRESENTATIVE PROFILES: udk/ ' / /88/YH/0717/62/ /029/ odh/ /88/YH/0717/64/ /007/ iqt/ / /81/NS/0717/34/ /010/

O617&O717 - 94 Page Z LAND UNIT : Ffq.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 90Z 902 10Z SLOPES dl. Steepness : 3 - 8Z 3 - 8Z < 31 d2. Slope length :' 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Straight Concave SOILS el. USDA Class : kandiudults hapludox tropaquepts e2. Z Facet : 60Z «0Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludox tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine Coarse subsoil: Moderately fine Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep Deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: High Very low Low subsoil: Low Very low Low t. Total K2O: topsoil: Very high Very low Very low subsoil: Low Very low Very low g. Avail. P: method : Bray I Bray I Bray I topsoil: Very high Very low Low subsoil: Very low Very low Low h. Total P: topsoil: Medium Very low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Very low ' Medium subsoil: Very low Very low Low j. Reaction: topsoil: Very strong acid Exessively acid Strong acid subsoil: Exessively acid Exessively acid Strong acid k. Al sat. topsoil: None, very low High subsoil: Medium High 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter CZ) : 6.6 1.9 5.2 x. TEB (meq/100 g) : 6.9 1.1 0.8 s. Total anal, profiles:

f. LAB CHECK Yes Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropaquepts are extrapolated from Pfq.1.1 The data of Kandiudults and Hapludox are extrapolated from Pfq.3.1

0617&0717 - 95 LAND UHU : Pf.4.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

summit level Pf.4.2 unconsolidated sedimentary rocks, flat top ifl l

1. LAUD UNIT : Pf.4.2 Plains, fine felsic sedimentary rocks,'undulating to rolling (slopes 3-16X), moderately dissected 2. MAP SHEET : 0717 3 AREA : 595.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 90Z, Riau 101 5. STATUS IDENTIFIERS Updated by : SS Edit date: .31/10/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85, 128/59/08/08/65 8. AERIAL PHOTOGRAPHS 1:100.000 155 /8319-177, 145 /8319-79 , 23 /8320-287 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0% a. Weathering Partial b. Lithology claystone. c. Formation : Tup , Tmt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE ; -, bush, scrub, savanna, grazing land,' alang-alang, upland crops, wetland rice, oil palm Area used : 80 X 16. ACCELERATED EROSION a. Occurrence : Common - b. Evidence : Various 17. TERRAIN : Undulating to rolling (3-161) 18. FLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Medium b. Variability : Medium 20. ALTITUDE Minimum : 75 m Maximum : 120 m Range : 80 - 100 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23e 24 | 25 | rate :1. |l|l|l|2|2| 2 I 2|2|

28. REPRESENTATIVE PROFILES: uda/ 1 /88/SS/0717/31/. /018/ uda/ /84/ER/0717/63/ /002/ uda/ 1 /88/JH/0717/63/ /127/ ity/ /80/KL/0717/32/ /021/ uda/ 1 /88/KR/0717/22/ /014/ uda/ /88/SS/0717/31/ /008/ iqt/ 1 /88/LH/0717/52/ /034/ uda/ /88/YH/0717/61/ /060/ ity/ 1 /80/KL/0717/32/ /019/ uda/ /80/KL/0717/32/ /012/ ity/ 1 /80/KL/0717/32/ /029/ O617&O717 - 96 Page 2 LAND UNIT : Pf.4.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley floor c. Z of Land Unit : 851 851 15Z SLOPES dl. Steepness : 3 - 16Z 3 - 16Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USOA Class : hapludults dystropepts tropaquepts eZ. X Facet : 60Z «01 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil: mineralsoil: Deep Very deep Very deep d. Drainage : Well drained Moderately well Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low Low Medium subsoil: Very low Medium Medium f. Total K20: topsoil: Low Very high Medium subsoil: Very low Medium Medium g. Avail. P: method : Bray I Bray I Bray I topsoil: Very low Very low Very low subsoil: Very low Very low Very low h. Total P: topsoil: Very low Low Low subsoil: Very low Medium Very low OTHERS : i. CEC pH 7 topsoil: High High Very high subsoil: High High Very high j. Reaction: topsoil: Exessively acid Very strong acid Moderately a~id subsoil: Excessively acid Very strong acid Neutral k. Al sat. topsoil: High None, very low subsoil: Very high None, very low 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 93 cm q. Organic matter (Z) : 2.7 0.7 11.5 r. TEB (meq/100 g) : 1.6 18.7 «0.5 s. Total anal, profiles: 8 . 3

t. LAB CHECK : Yes Yes Yes

27.. ADDITIONAL NOTES : Elevated areas have Fe and Mn concretion

0617&0717 - 97 LAUD UNIT : dPf.4.2 Mapshaat : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

<50m

dacite cover a. interfluves b. valley bottom

1. LAND UNIT : dPf.4.2 Plains, fine felsic sedimentary rocks, undulating to rolling (slopes 3-16Z), covered with acid tuffs, moderately dissected 2. MAP SHEET : 0717 3 AREA : 47.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS Updated by : SS Edit date: 05/09/90 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 . 9. RADAR STAR-1/250/88/0717-4 10 . PARENT MATERIAL " 11. ROCK OUTCROP : 21 a. Weathering Partial b. Lithology clay, liparite, c. Formation Tmt 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES Not known 1«. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation Not relevant 15. - VEGETATION/LAND USE , bush, scrub, alang~aLang, upland crops, mixed gardens of fruit trees, rainfed wetland rice Area used 60 1 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence : Various 17. TERRAIN Undulating to rolling (3-16Z) 18. PLAN/ Dominant: Not elongated and random > 60X of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium 20. ALTITUDE Minimum 60 m Maximum : 80 m Range 65 - 70 m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderate 24. VALLEY FLOOR Width Narrow 25. FRAGMEN a. Valleys Medium blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl I 22d2 I 22el I 23b | 23c I 23d | 23er 24 | 25 rate : 1 2 | 1 I 1 I 1 I 2 I 2

28. REPRESENTATIVE PROFILES: odk/ / /88/YH/0717/51/ /073/ uda/ /88/LH/0717/52/ /048/

O617&O717 - 98 Page 2 LAND UNIT : dPf.4.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 85Z 85Z 15Z SLOPES dl. Steepness : 3 - 16Z 3 - 8Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m 50 - 100 m d3. Slope curvature : Straight Convex Concave SOILS el. USDA Class : hapludults kandiudox tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults kandiudox tropaquepts

b. Texture: topsoil: Fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil: roineralsoil: Deep Deep Very deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Medium Low subsoil: Medium Very low f. Total K2O: topsoil: Medium Low subsoil: Medium Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 t«psoil: Medium Low subsoil: High Low J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: Medium .High subsoil: High . Very high J.. Al toxicity : Yes Yes B. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : .p. Root obstr. layer : q. Organic matter (X) : 2.3 1.3 r. TEB (meq/100 g) : 9.7 0.5

a. Total anal, profiles:

f. LAB CHECK Yes No

27. ADDITIONAL NOTES : The soil data of Hapludults and Tropaquepts are extrapolated from dPf.5.2

0617&0717 - 99 LATO UNIT : Pfq.4.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

_summit level Pfq.5.3 Wq.4.2 a. interfluves . b. valley bottom 16%

= 50 m

unconsolidated deposit

1. LAND UNIT : Pfq.4.2 Plains, fine and coarse felsic sedimentary rocks, undulating to rolling (slopes 3-16Z), moderately dissected 2. MAP SHEET : 0717 3. AREA : 94.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 803, Riau 20Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 26 /8320-105, 24 /8320-205 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP 0Z a. Weathering : Partial b. Lithology : claystone, sandstone, c. Formation : Qpmi , Tmt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, upland crops Area used : 30 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence Various 17. TERRAIN : Undulating to rolling (3-16Z) 18. PLAN/ Dominant: Not elongated and random > 60Z' of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability Medium 20. ALTITUDE Minimum : 65 m Maximum 100 m Range : 70 - 85 m 21. DRAINAGE a. Pattern: Dendritic b. Density Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

rate :l|l|l|l|2|2| 2|2|2| 2 I 1 I 1 1 1 I 1 I

28. REPRESENTATIVE PROFILES: udk/ / /87/KR/0717/63/ /068/ udk/ /87/KR/0717/63/ /071/ iqt/ / /81/NS/0717/34/ /010/ odh/ /88/LH/0717/33/ /003/

O617&O717 - 100 Page 2 LAND UNIT : Pfq.4.2 Mapsheet : 0717 08/12/9Q

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley botto c. Z of Land Unit : 90Z 90 Z 10Z SLOPES dl. Steepness : 3 - 16Z 3 - 16Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : kandiudults hapludox tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludox tropaquepts

b. Texture: topsoil: Moderately coarse Moderately fine Coarse subsoil: Moderately fine Fine Coarse c. Depth: peatsoil: mineralsoil: Extremely deep Very deep Deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Very low Low Low subsoil: Very low Very low Low t. Total K2O: topsoil: Very low Medium Very low subsoil: Very low Very low Very low g. Avail. P: method : Bray I Bray I Bray I topsoil: Very low Very low Low subsoil: Very low Very low Low h. Total P: topsoil: Very low Very low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low Medium subsoil: Low Very low Low j. Reaction: topsoil: Exessively acid Exessively acid Strong acid subsoil: Very strong acid Exessively acid Strong acid k. Al sat. topsoil: Bigh Bigh subsoil: High High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 176 cm q. Organic matter (Z) : 2.9 3.3 5.2 r. TEB (meq/100 g) : 0.7 1.4 0.B s. Total anal, profiles: 2

f. LAB CHECK Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropaquepts are extrapolated from Pfq.1.1 The data of Hapludox are extrapolated from Pfq.5.2

0617&0717 - 101 LAND UNIT : Pq.4.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

Pf.4.2 Pq.4.2 summit level a. interfluves b. valley bottom

16%

<50m

Older sedimentary rock« (sand stone)

1. LAND UNIT : Pq.4.2 Plains, coarse felsic sedimentary rocks, undulating to rolling (slopes 3-16Z), moderately dissected 2. MAP SHEET : 0717 3. AREA : 29.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 24 /8320-211 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : sandstone, , c. Formation : Tmsk , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, rubber Area used : 20 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence Various 17. TERRAIN . : Undulating to rolling (3-16Z) 18. PLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability Low 20. ALTITUDE Minimum : 75 a Maximum 100 m Range : 80 - 85 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 14a | 14b |19 I 20 | 21bI 22b | 22c || 22dl | 22d2 | 22el | 23b | 23c| 23d || 23 er 1 24 |25 | rate : 1 1 1 1 1 1 1 1 2 | 2 | 2 1 2 | 2 1 1 1 2 1 1 11 1 1 1 | 1 1 1 1 1 1

28. REPRESENTATIVE PROFILES: odh/ / /88/KR/0717/34/ /025/ est/ /88/SS/0717/32/ /023/

O617&O717 - 102 Pag« 2 LAND UNIT : Pq.4.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. lot Land Unit : 851 851 15Z SLOPES dl. Steepness : 3 - 161 3 - 8Z < 3Z d2. Slope length : 201 - 500 m 201 - 500 m 50 - 1,00 m d3. Slope curvature : Straight Convex Concave SOILS el. USDA Class : hapludox tropops aranents tropaquepts • e2. Z Facet : 601 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox tropopsannients tropaquepts

b. Texture: topsoil: Moderately fine Coarse Fine subsoil: Fine Coarse Fine c. Depth: peatsoil: mineralsoil: Extremely deep Deep Deep d. Drainage : Well drained Moderately well Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low Very low subsoil: Very low Very low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Medium Low subsoil: Very low Very low h. Total P: topsoil: Very low Low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: High Medium subsoil: Low Medium J. Reaction: topsoil: Exessively acid Very strong acid Very strong acid subsoil: Exeasively acid Very strong acid Very strong acid k. Al sat. topsoil: subsoil: 1. Al toxiclty : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free. Salt free o. Other toxicity : p. Root obstr. layer : '85 cm q. Organic matter (Z) : 4.7 6.6 r. TEB (meq/100 g) : 1.* 0.5 a. Total anal, profiles: 1 0

t. LAB CHECK : Yes No

27. ADDITIONAL NOTES : The soil data of Hapludox are extrapolated from Pq.2.1 and The data of Tropopsamments are from Pq. 1.1

0617&O717 - 103 LAND UNIT : P£.4.3 Mapsheet : 0717 LREF-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

^Pq.4.2 summit level Pf.3.1 Pf 4 3 * unconsolkJatad sedimentary rocks, f u, a. interfluves b. valley bottom ' Pf.3.1 v»F b b L «50 m Pf.4.3

1. LAND UNIT : Pf.4.3 Plains, fins felsic sedimentary rocks, undulating to rolling (slopes 3-16*), strongly dissected 2. MAP SHEET : 0717 3..AREA : 94.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 22 /8319-213, 155 /8319-175 9. RADAR : STAR-1/250/88/0717- . 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : claystone, , c. Formation : Ttnt , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES ': River 1*. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, grazing land Area used : 30 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Gulleys 17. TERRAIN : Undulating to rolling (3-16X) 18. PLAN/ Dominant: Not elongated and random «0-60X iof area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves ge blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item 1 10b | 12a I 14a | 14b | 19 I 20 | 21b J 22b | 22c | 22dl | 22d2 | 22el || 23b | 23c 1 23d I 23er 1 24 1 25 | rate : 1 1 1 lilxl 21 1 2 | 2 1 2 | 2 | 2 1 2 | 1 || 1 1 1 1 1 11 2 1 2 1 2 |

28. REPRESENTATIVE PROFILES: not available

0617&0717 - 104 Page 2 LAND UNIT : Pf.«.3 Mapsheet : 0717 06/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb 2 b.' Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 901 90Z 10* Z SLOPES dl. Steepness : 3 - 16Z 3 - 161 < 3* d2. Slope length : 101 - 200 m 101 - 200 m < 50 ra d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : hapludults dystropepts tropaquepts e2. Z Facet : 60Z 40Z 100Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil: -- • -- mineralsoil: Deep Moderately deep Very deep d. Drainage : Moderately well Imperfectly drained Poorly drained NUTRIENTS : : e. Exch. K: topsoil: subsoil: — -- . f. Total K20: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTHERS : i. CEC pH 7 topsoil: subsoil: J. Reaction: topsoil: Strong acid Strong acid Moderately acid subsoil: Very strong acid Very strong acid Neutral k. Al sat. topsoil: subsoil: 1. Al toxicity : — -- — — m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity

t. LAB CHECK : No No No

27. ADDITIONAL NOTES :

O617&O717 - 105 LAND UNIT : P£.5.2 Mapshset : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

summit leve! Au. Pf.5.2 unconsolidated sedimentsry rocks.

<50 m

1. LAND UNIT : P£.5.2 Plains, fine felsic sedimentary rocks, rolling (slopes 8-163C), moderately dissected 2. MAP SHEET : 0717 3. AREA : 335.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 95%, Riau 5% 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85, 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0% a. Weathering : Partial b. Lithology : claystone, , c. Formation : Tup , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, grazing land, upland crops Area used : 40 % 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Rolling 8-16%, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60% of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Low 20. ALTITUDE Minimum : 65 m Maximum : 100 m Range : 75 - 90 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4° plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er 1 241 25 |

rate : 1 | 1 1 1 1 1 1 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 1 1 11 | 1 1 1 1 2 1 2 |

28; REPRESENTATIVE PROFILES: uda/ / /88/SS/0717/31/ /002/ uda/ /88/KR/0717/31/ /001/ uda/ / /89/SS/0717/22/ /105/

O617&O717 - 106 Pag» 2 LAND UHU : Pf.5.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifiez : la lb 2 b. Description : Interfluves Interfluves Valley bottoms e. X of Land Unit : 851 85* 151 X SLOPES dl. Steepness : 8 - 161 8 - 16* < 31 d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave — ' SOILS el. USDA Class : hapludults dystropepts tropaquepts e2. Z Facet : 60* . 40* 100* *

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts tropaquepts

b. Texture: topsoil: Moderately coarse Fine Fine — subsoil: Fine Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep Very deep -- d. Drainage : Well drained Imperfectly drained Poorly drained NUTRIENTS : -— e. Exch. K: topsoil: Low subsoil: Very low f. Total K20: topsoil: Low subsoil: Very low g. Avail. P: method: Bray I topsoil: Medium subsoil: Very low h. Total P: topsoil: Low subsoil: Very low OTHERS : : i. CEC pH 7 topsoil: Low subsoil: Low J. Reaction: topsoil: Very strong acid Strong acid Moderately acid subsoil: Very strong acid Very strong acid Neutral -- k. Al sat. topsoil: None, very low subsoil: Medium 1. Al toxicity : Yes ill. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (*) : 5.1 r. TEB (meq/100 g) : 2.2 — — . " s. Total anal, profiles: 3 0 0 0

f. LAB CHECK : Yes No No

27. ADDITIONAL NOTES : The soil data of Dystropepts & Tropaquepts are extrapolated • from Land Unit Pf.4.3

0617&0717 - 107 LAND UNIT : dPf.5.2 Mapsheet : 0717 ' ' LREP-SDBM, CSR-BOGOR 08/12/90

CROSS SECTION :

dPf.5.2 dPf.3.1 summit level

<60m

dacite cover, a. interfiuves b. valley bottom

1. LAND UNIT : dP£.5.2 Plains, fine felsic sedimentary rocks, rolling (slopes 8-16Z), covered with acid tuffs, moderately dissected 2. MAP SHEET : 0717 3. AREA : 173.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 05/09/90 Status : Final 7. SATELLITE SCENES ; 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 2Z a. Weathering : Partial b. Lithology : clay, liparite, c. Formation : Tmt 12. HATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. FLoodrisk water : None b. Floodrisk sed.; None c. Inundation : Not relevant 15. VEGETATION/LAND USE ; , bush, scrub, alang-alang, upland crops, rainfed wetland rice Area uaed : 60 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Rolling 8-16X, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 601 of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 75 m • . Maximum : 100 m Range : 80 - 90 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfiuves : Medium blocks

26. RELIABILITY (1- reliable, 2- probable, 3- tenable, 4» plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 I 22el | 23b | 23c | 23d | 23er | 24 | 25 rat. : 1 2 1 2 | 2 1 | 1

28. REPRESENTATIVE PROFILES: udk/ / ' /88/LH/0717/52/ /057/ udk/ /88/CD/0717/52/ /062/ ud«/ / /88/LH/0717/52/ /048/

061760717 - 108 Fag* 2 LAND UNIT : dPf.5.2 Mapsheet : 0717 08/12/90

22. FACETS. SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms e. Z of Land Unit : 90Z 90Z 10 Z SLOPES dl. Steepness : 8 - 16Z 8 - 16Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : kandiudults hapludults tropaquepts »2. Z Facet : ' 60Z 401 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludults tropaquepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil: mineralsoil: Deep Deep Very deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low Medium subsoil: Low Medium f. Total K2O: topsoil: Very low Medium subsoil: Very low Medium g. Avail. F: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Medium subsoil: Very low High j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High Medium subsoil: Very high High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 2.6 2.3 r. TEB (meq/100 g) : 0.8 9.7 s. Total anal, profiles: 0

f. LAB CHECK ' : No

27. ADDITIONAL NOTES

O617&O717 - 109 LAND UNIT : Pfk.5.2 Mapsheet : 0717 LREP-SDBM., CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION

Hqk. 1.3.1 • Pfk.5.2

8 16%

<5Om

soft calcareous material, limestone locally exposed a. interfluves b. valley bottom

1. LAND UNIT : Pfk.5.2 Plains, fine felsic sedimentary and soft calcareous rocks, rolling (slopes 8-16Z), moderately dissected 2. MAP SHEET : 0717 3. AREA : 64.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 2 /8323-181 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : marly clay, , c. Formation : Tmts , Tmt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, grazing land, rainfed wetland rice Area used : 90 I 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence Various 17. TERRAIN : Rolling 8-16Z, 0-50 m 18. PLAN/ Dominant: Not elongated and random 40-60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability Medium 20. ALTITUDE Minimum : 75 m Maximum 100 m Range : 80 - 90 m 21. DRAINAGE a. Pattern: Dendritic b. Density Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves Large blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 114a | 14b | 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d I 23 er 1 24 1 25 | rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 | 2 | 2 | 2 | 2 | 1 1 1 1 1 1 1 1 1 1 2 !| 2 |

26. REPRESENTATIVE PROFILES: ada/ / /89/KR/0717/23/ /077/ ite/ /8B/CD/0717/23/ /074/

06176.0717 - 110 Pas* 2 LAUD UNIT : Pft.5.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la . lb 2 — b. Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 90Z 90Z 10Z Z SLOPES dl. Steepness : 8 - 16Z 8 - 16Z < 3Z d2. Slope length : 101 - 200 -m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : eutropep'ts hapludalfs tropaquepts e2. X Facet : 60Z 40Z 100Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : eutropepts hapludalfs tropaquepts

b. Texture: topsoil: Fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil: mineralsoil: Very deep ' Very deep Very deep d. Drainage : Well drained Well drained ' Very poorly drained NUTRIENTS :~; e. Exch. K: topsoil: Medium Low subsoil: Medium Medium f. Total K2O: topsoil: High Low subsoil: . High Medium g. Avail. P: method: Bray I Olsen topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: High Low subsoil: High Very low OTgERS : i. CEC pH 7 topsoil: High • High subsoil: High • Very high j. Reaction: topsoil: Neutral Very strong acid Slightly alkaline subsoil: Neutral Very strong acid Slightly alkaline k. Al sat. topsoil: subsoil: 1. Al toxicity : — m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.5 6.1 r. TEB (meq/100 g) : 29.0 13.2

». Total anal, profiles: 11 0 0

f. LAB CHECK : Yes Yes No

27. ADDITIONAL NOTES : The soil data of Eutropepts are extrapolated from Ffk.8.2

0617&0717 - 111 LAND UNIT : Pfq.5.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

summit level Pfq.5.2 a. interfluves Pfq.2.1 " f bottom

-50m

unconsolidated deposit

1. LAND UNIT : Pfq.5.2 Plains, fine and coarse felsic sedimentary rocks, rolling (slopes 8-16X), moderately dissected MAP SHEET : 0717 3. AREA : 493.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 703, Riau 30* STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final SATELLITE SCENES : 128/59/08/08/85 AERIAL PHOTOGRAPHS : 1:100.000 23 /8320-279, 25 /8320-157 RADAR : STAR-1/250/88/0717- . PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : claystone, sandstone, c. Formation : Qpmi , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river FISHERIES :• River RIVERS a. Floodrisk water : None b. Floodriak sed.: None c. Inundation : None 15 VEGETATION/LAND USE : logged forest, rubber, oil palm Area used : 40 1 ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17 TERRAIN : Rolling 8-161, 0-50 m 18 FLAN/ Dominant: Not elongated and random > 601 of area crested/peaked PROFILE Included: 19 RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Medium 20 ALTITUDE Minimum : 65 m Maximum : 100 m Range : 70 - 90 m 21 DRAINAGE a. Pattern: Dendritic . b. Density : Moderate 24 VALLEY FLOOR Width : Very narrow 2S FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2= probable, 3» tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c-| 23d | 23er | 24 | 25

««•• :l|l|l|l|2|2| 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |2|l

28. REPRESENTATIVE PROFILES: udk/ • / /88/YH/0717/62/ /051/ odh/ /88/CD/0717/33/ /013/ odh/ • / /88/LH/0717/33/ /003/ udk/ /88/JH/0717/64/ /112/ udk/ / /88/JH/0717/63/ /119/ udk/ /88/JH/0717/63/ /124/

O617&O717 - 112 Page 2 LAM) UNIT : Pfq.5.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley floor c. Z of Land Unit : 90Z 90 Z 10Z SLOPES dl. Steepness : 8 - 16Z 3 - 8Z < 3Z d2. Slope length : 101 - 200 it 101 - 200 m < 50 m d3. Slope curvature ' : Convex Convex Concave SOILS el. USDA Class : kandiudults tropaquepts eZ. I Facet : 70Z 30Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludox tropaquepts

b. Texture: topsoil: Moderately coarse Moderately fine Medium subsoil: Moderately fine Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep Deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Medium Low subsoil: Low Very low f. Total K20: topsoil: Medium Very low subsoil: Low Very low g. Avail. P: method : Bray I Bray I topsoil: Medium Very low subsoil: Medium Very low h. Total P: topsoil: Low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Very low Very low J. Reaction: topsoil: Very strong acid Exessively acid Exessively acid subsoil: Exessively acid Exessively acid Very strong acid k. Al sat. topsoil: None, very low High subsoil: High High 1. Al toxicity : Ho Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 2.9 3.3 r. TEB (meq/100 g) : 2.5 1.4

8: Total anal, profiles:

f. LAB CHECK : Yës

27. ADDITIONAL NOTES :

0617&0717 - 113 LAND UNIT : Pq.5.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOH 08/12/90

MAP IMAGE : CROSS SECTION : ld.2.2. 2 summit level • •. interfluves b. valley bottom /8-16% b

<50m

.."-;:.•;.-i-V.;'

Older ledimentary rock» (sand »ton«)

1. LAND UNIT : Pq.5.2 Plains, coarse felsic sedimentary rocks, rolling (slopes 8-16Z), moderately dissected 2. MAP SHEET : 0717 3. AREA : 84.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS ; Updated by : SS Edit date: 01/11/89 Status .: Final 7. SATELLITE SCENES ; 8. AERIAL PHOTOGRAPHS ; 1:100.000 23 /8218-219, 23 /8218-215 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : sand, sandstone, c. Formation : Qp • , Tmsk 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES :. River 1*. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE :logged forest, secondary forest, bush, scrub, rubber Area used : 20 Z IB. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Rolling 8-16Z, 0-50 m 18..PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 100 m Range : 60 - 80 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys:Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4° plausible) itao | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 | 22el | 23b | 23.C | 23d I 23er | 24 tat. : 1 2 | 2 I 1 I 1 I

28. REPRESENTATIVE PROFILES: iqt/ / /88/MR/0717/54/ /110/ est/ /88/SS/0717/32/ /023/ ••t/ / /88/MR/0717/54/ /108/

0617&0717 - 114 Page 2 LAND UNIT : P

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb 2 b. Description : Interfluves • Interfluves Valley bottoms o. Z of Land Unit : 90Z 90Z 10Z Z SLOPES dl. Steepness : 8 - 161 8 - 16Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : hapludox tropopsaninents tropaquepts e2. Z Facet : 60Z 40Z 100Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox tropopsaninents tropaquepts

b. Texture: topsoil: Coarse Coarse Coarse subsoil: Coarse Coarse Coarse c. Depth: peàtsoil: mineralsoil: Very deep Deep Very deep d. Drainage : Somewhat exessively Moderately'well Imperfectly drained NUTRIENTS : . • . Exch. K: topsoil: Very low Very low Very low subsoil: Very low .Very low Very low f. Total K2O: topsoil: Very low Very low Very low subsoil: Very low Very low • Very low g. Avail. P: method: Bray I Bray I Bray I topsoil: High Low Low subsoil: Medium Very low Medium h. Total P: topsoil: Very low Low Very low subsoil: Vary low Very low Very low OTHKKS ;—————————————•.———»..•————»__——-.___———____———_——_-.—————__.„__ ——_—______. ______i. CEC pH 7 topsoil: Very low Medium Very high subsoil: Very low Medium Very high j. Reaction: topsoil: Exessively acid Very strong acid Strong acid — , subsoil: Very strong acid Very strong acid Strong acid k. Al sat. topsoil: High — Low subsoil: Medium — Low 1. Al loxieity : Ho — No m. Acid sulph. pot. : Not relevant Not relevant Not relevant

n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : P* Koot obstr. layer : — 85 cm 110 cm q. Organic matter (Z) : 2.0 6.6 3.0

r. TEB (meq/100 g) : 0.4 0.5 0.7

s. Total anal, profiles: 1110

t. LAB CHECK : Yes Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropopsammento are extrapolated from Pq.1.1

0617&0717 - 115 LAHD UHIT : Pf.S.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

summit level W.5.3 unconsolidated ndimcntary rockt, i

<50m

1. LAND UNIT : Pf.5.3 Plains, fine felsic sedimentary rocks, rolling (slopes 8-16Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 327.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : claystone, , c. Formation : Tmt , Tup 12. HATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15: VEGETATION/LAND USE : , bush, scrub, grazing land, coconut Area used : 30 % 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Rolling 8-16Z, 0-50 m 18. PLAN/ Dominant: Not.elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Low 20. ALTITUDE Minimum : 65 m Maximum : 100'a Range : 70 - 90 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 2A. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2- probable, 3= tenable, 4" plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b| 22b | 22c | 22dl | 22d2 | 22el || 23b | 23c | 23d | 23er 1 24 1 25 | rat« : 1 | 1 1 1 1 1 1 2 | 2 | 2 | 2 | 2 | 2 1 2 | 1 |1 1 1 1 1 1 !| 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: uda/ / /88/JH/0717/63/ /133/

O617&O717 - 116 Page 2 LAND UNIT : Pf.5.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb 2 b. Description : Interfluves Interfluves Valley bottoms e. I of Land Unit : 90Z 901 10Z Z SLOPES dl. Steepness : 8 - 16Z 8-161 < 3X d2. Slope length : 50 - 100 m 101 - 200 m < 50 m d3. Slope curvature : Concave Convex Concave SOILS el. USDA Class : hapludults dystropepts tropaquepts e2. Z Facet : 65Z 35Z 100Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts tropaquepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep Very deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : : e. Eich. K: topsoil: Very low subsoil: Very low f. Total K2O: topsoil: Very low -- subsoil: Very low g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Low subsoil: Low OTHERS : i. CEC pH 7 topsoil: Very low subsoil: Very low j. Reaction: topsoil: Very strong acid Exessivsly acid Moderately acid subsoil: Very strong acid Exessively acid Neutral k. Al sat. topsoil: Medium subsoil: Medium 1. Al toxicity : Ho B. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 0.4 t. TEB (meq/100 g) : 0.6 s. Total anal, profiles: 1 0 ' 0 0

t. LAB CHECK : Yes No No

27. ADDITIONAL NOTES :

0617&0717 - 117 LAND UNIT : dPf.5.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

dPf.8.3

:50m

dacite cover, a. interfluves b. valley bottom

1. LAND UNIT : dP£.5.3 Plains, fine felsic sedimentary rocks, rolling (slopes 8-162), covered with acid tuffs, strongly dissected 2. MAP SHEET : 0717 3 AREA : 14.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS ; Updated by : SS Edit date: 06/09/90 Status : Final 7. SATELLITE SCENES ; 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 22 a. Weathering : Partial b. Lithology ; clay, liparite, c. Formation : Tmt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. FLoodrisk water : None b. Floodrisk sed.: None c. Inundation : Not relevant 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, upland crops, rainfed wetland rice Area used : 60 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Rolling 8-16Z, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 602 of a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 75 m Range : 75 - 80 m Maximum : 100 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4='plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23ar 24 25 |

2| 2 I 2 I

28. REPRESENTATIVE PROFILES: odk/ / /88/YH/0717/51/ /073/ udk/ /88/LH/0717/52/ /057/

O617&0717 - 118 F«S« 2 LAUD UNIT : offf.5.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la ' lb b. Description : Interfluves Interfluves Valley bottoms c. t of Land Unit : 90Z 90Z 101 SLOPES dl. Steepness : 8 - 161 8 - 16Z < 3Z d2. Slope length : 201 -.500 m 201 - 500 m < 50 a d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : kandiudults kandiudox tropaquepts •2. I Facet : 60Z 401 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults kandiudox tropaquepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Fine Fine Fine c. Depth: peatsoil:- mineralsoil: Deep Deep Very deep d. Drainage Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low Very low t. Total K20: topsoil: Very low Low subsoil: Very low Very low f. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Very low Low j. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High High subsoil: Very high Very high 1. Ai toxicity : Yes Yes m. Acid sulph. pot. : Hot relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (3t) : 2.6 1.3 r. TEB (meq/100 g) : o.ó 0.5

8. Total anal, profiles: 1

f. LAB CHECK : Ye No

27. ADDITIONAL NOTES : The soil data of Kandiudox are extrapolated from dPf.4.2 and the data of Kandiudults and Tropaquepts are extrapolated from dPf.5.2

O617&O717 - 119 LAHD UNIT : Pfq.5.3 Mapsheet : 0717 LREF-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

iummit level yWj MPfq-32 ttq.6.3 a. interf luves Au \ b. vattey bottom P«H.5.2( >** \ \ <60m r Pfq.) / V : /e3.1 V^ ^> u unconsolidsted deposit 1. LAND UNIT : Pfq.5.3 Plains, fine and coarse felsic sedimentary rocks, rolling (slopes 8-16Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 598.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 80Z, Riau 20Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 S. AERIAL PHOTOGRAPHS 1:100.000 25 /8320-157, 23 /8320-273, 25 /8320-153 9. RADAR STAR-1/250/88/0717- 10 PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology claystone, sandstone, c. Formation Qpmi 12. HATER a. Quality Fresh b. Source Rain, Perennial river FISHERIES River RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None IS VEGETATION/LAND USE , shifting cultivation, rubber, oil palm Area used 80 X 16 ACCELERATED EROSION a. Occurrence Common b. Evidence : Various 17 TERRAIN Rolling 8-16Z, '0-50 a 18 PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19, RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium 20 ALTITUDE Minimum 100 m Range 100 - 135 m Maximum : 160 m 21, DRAINAGE a. Pattern Dendritic 24, VALLEY FLOOR Width Very narrow b. Density : Moderately high 23. FRAGMEN a. Valleys Small blocks b. Interf luves : Medium blocks 26. RELIABILITY (1° reliable, 2= probable, 3= tenable, 4° plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d 1 23er 1 24 1 25 | rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 | 2 1 2 | 2 11 1 1| 1 1 1 1 1 1 2 |1 2 |

28. REPRESENTATIVE PROFILES: odh/ / /88/YH/0717/62/ /009/ udk/ / /88/YH/0717/62/ /019/ udk/ / /88/YH/0717/62/ /052/ odh/ ,/ '/89/YM/O717/64/ /002/

0617&O717 - 120 Fa«* 2 LAND UNIT : Pfq.5.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb 2 b. Description : Interfluves Interfluvos Valley floor c. X of Land Unit : 901 90Z 101 Z SLOPES dl. Steepness : 8 - 16Z 8 - 16J < 3Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : kandiudults hapludox tropaquepts e2. X Facet : 70Z 302 100Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : kandiudults hapludox tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine Medium subsoil: Moderately fine Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Deep Deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS :— a. Exch. K: topsoil: Low Very low subsoil: Very low Very low — , f. Total K2O: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very high High subsoil: Low Very low h. Total P: topsoil: Medium Low subsoil: Very low Very low OTHERS : i. CEC pB 7 topsoil: Medium Low subsoil: Low Low J. Reaction: topsoil: Very strong acid Exessively acid Exessively acid subsoil: Very strong acid Exessively acid Very strong acid k. Al sat. topsoil: Low Low subsoil: Medium Medium 1. Al toxicity : No No o. Acid aulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.2 4.0 r. TEB (meq/100 g) : 3.0 2.6 — — s. Total anal, profiles: 2 2 0 0

f. LAB CHECK : Yes Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropaquepts are extrapolated from Pfq.5.2

O617&O717 - 121 LAUD UNIT : Pf.5.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

jummit I«VBI Pf.5.4 Pfq.4.2

<50m

1. LAND UNIT : Pf.5.4 Plains, fine felsic sedimentary rocks, rolling (slopes 8-16Z), extremely dissected 2. MAP SHEET : 0717 3. AREA : 37.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : claystone, , c. Formation : Tmt , . 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub Area used : 0 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Rolling 8-16J, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 602 of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 150 m Range : 75 - 120 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 2«. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 |I 20 | 21b I 22b | 22c || 22dl | 22d2 I 22el 1 23b | 23c | 23d | 23er 1 24 1 25 | rat« : 1 | 1 1 1 1 1 1 2 | 2 | 2 1 2 | 2 |I 2 | 2 | 1 |! i 11 1 | 1 1 1 .1 2 1 2 |

28. REPRESENTATIVE PROFILES: uda/ / /88/ /JH07/63/ /133/

O617&O717 - 122 Fag* 2 LAND UNIT : Pf.5.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. .Description : Interfluves Interfluves c. Z of Land Unit : 100Z 100Z I X SLOPES dl. Steepness : 3 - 1BZ 8 - 16Z d2. Slope length : 101 - 200 m 101 - 200 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : hapludults dystropepts e2. Z Facet : 60Z 40Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts'

b. Texture: topsoil: Moderately fine Fine subsoil: Fine Fine c. Depth: pëatsoil: — • mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Very low subsoil: Very low f. Total K20: topsoil: Very low subsoil: Very low g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Low subsoil: Low OTHERS : • i. CEC pH 7 . topsoil: Very low subsoil: Very low J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Exessively acid k. Al sat. topsoil: Medium subsoil: Medium 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 0.4 r. TEB (meq/100 g) : 0.6

-8. Total anal, profiles: 10 0 0

f. LAB CHECK : Yes No

27. ADDITIONAL NOTES : The soil data are Extrapolated from Pf.5.3

O617&O717 - 123 LAHD UNIT : dPf.7.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SEKTION :

Au.1.2* dPf.7.2 summit level hillock

<50m

dacite cover, a. interfluves b. valley bottom

1. LAND UNIT : dPf.7.2 Plains, fine felsic sedimentary rocks, undulating with hillocks, covered with acid tuffs, moderately dissected 2. MAP SHEET : 0717 3. AREA : 37.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/09/90 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100..000 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : St a. Weathering : Partial b. Lithology : clay, liparite, c. Formation : Tmt , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : Kot relevant 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, upland crops, rubber Area used : 60 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence 17. TERRAIN : Hillocky >16Z, 0-50 m 18. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 60 m Maximum : 1Z5 m Range : 75 - 100 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2° probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a I 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 | 22el | -23b I 23c | 23d I 23er | 24 | 25 rat« : 1 I 2

28. REPRESENTATIVE PROFILES: ity/ / /88/YH/0717/61/ /063/ eot/ /88/SS/0717/21/ /059/

0617&0717 - 124 Page 2 LAND UNIT : dPf.7.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms c. Z of Land Unit : 90Z 90Z 10Z SLOPES dl.. Steepness : 8 - 25Z 8 - 251 < 3Z d2. Slope length : 201 - 500 m 201 - 500 m < 50 m d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : dystropepts troporthents tropaquepts el. Z Facet : 60Z 401 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts troporthents tropaquepts

b. Texture: topsoil: Moderately fine Moderately fine Fine subsoil: Medium Moderately fine Fine c. Depth: peatsoil: mineralsoil: Deep Moderately shallow Very deep d. Drainage : Well drained Exessively drained Poorly drained NUTRIENTS : " e. Exch. K: topsoil: Low Low subsoil: Low Low f. Total K2O: topsoil: Very low Low subsoil: Very low Low g. Avail. P: method : Bray I Bray I topsoil: Very low Medium subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Strong acid Exessively acid . subsoil: Strong acid Exessively acid k. Al sat. topsoil: High High subsoil: High Very high 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 35 cm q. Organic matter (Z) : 2.2 5.9 r. TEB (meq/100 g) : 0.6 0.9

s. Total anal, profiles: 1 1 0

t. LAB CHECK : Yes Yes No

27. ADDITIONAL NOTES : The soil data of Tropaquepts ar* extrapolated from dPf.5.2 and The data of Troporthents are from Hu. 1.3.3

0617&Ó717 - 125 LAUD UNIT : Pf.8.2 Mapsheet : 0717 LREP-SDBH, CSR-BOGOR 08/12/80

MAP IMAGE : CROSS SECTION :

Hq. 1.2.3 f""

' Pf.2.1 \ <50m ju-/

>>Pf.8.O' Pf.3.1

unconsolidated sedimentary rocks,

1. LAHD UNIT : Pf.8'. 2 Plains, fine felsic sedimentary rocks, rolling with hillocks, moderately dissected 2. MAP SHEET : 0717 3. AREA : 13.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0% a. Weathering : Partial b. Lithology : claystone, c. Formation : Tmt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River Ù. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, grazing land, oil palm Area used : 40 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidenc e : Various 17. TERRAIN : Rolling to hillocky 18. FLAN/ Dominant: Not elongated and random > 60Z of a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a.-Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 150 m Range : 110 - 140 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible)* item | 10b | 12a | 14a | 14b | 19 I 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c 1 23d | 23er 1 24 1 25 | rate : 2 1 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 1 2 | 2 | 1 1 1 1 1 1 1 1 1 1 2 1 2 1

28. REPRESENTATIVE PROFILES: ity/ / /88/CD/0717/24/ /021/ uda/ /89/CD/0717/21/ /076/

O617&O717 - 126 Page 2 LAND UNIT : Pf.8.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100* 100Z SLOPES dl. Steepness : 16 - 25Z 16 - 25Z d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : dystropepts hapludults e2. I Facet : 60Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained HUTRIENTS : e. Exch. K: topsoil: Low Medium subsoil: Low Medium f. Total K2O: topsoil: Low High subsoil: Low Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Low Low OTHERS : i. CEC.pH 7 topsoil: Low Very high subsoil: Low Very high J. Reaction: topsoil: Very strong acid Strong acid subsoil: Very strong acid Strong acid k.. Al sat. topsoil: Medium Medium subsoil: High High 1. Al toxicity : m. Acid sulph. pot. : Rot relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Othex toxicity - : p. Root obstr. layer : 120 cm q. Organic matter (Z) : 2.0 2.6 r. TEB (meq/100 g) : 1.9 13.7 s. Total anal, profiles: 1 1

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data are extrapolated from Pf.8.3

0617&0717 - 127 LAHD UNIT : Ffk.8.2 Mapsheet : 0717 LREP-SDBM, CSR-B06QR 08/12/90

HAF IMAGE : CROSS SECTION :

Pfk.5.2 Pfk.8.2 summit level hillock b -' b 8-25% <50m

nnu.u-nii.|,,,,lir;,-77-» •oft calcareous material, limestone locally exposed a. interfluves b. valley bottom

1. LAND UNIT : Pfk.8.2 Plains, fine felsic sedimentary and soft calcareous rocks, rolling with hillocks, moderately dissected 2. MAP SHEET : 0717 3 AREA : 34.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z .5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/0B/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 145 /8319-89 , 2 /2832-179 S. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology marly clay, , c. Formation Tmt ' , 12. WATER a. Quality Fresh b. Source Rain, Perennial river FISHERIES River RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None VEGETATION/LAND USE , bush, scrub,alang-alang, grazing land Area used 60 Z ACCELERATED EROSION a. Occurrence Extensive b. Evidence : Gulleys TERRAIN Hillocky >16Z, 0-50 m PLAN/ Dominant Not elongated and random < 40Z of area flat-topped PROFILE Included 19 RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium ALTITUDE Minimum 75 m Maximum : 150 m Range 90 - 140 m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderate 24. VALLEY FLOOR Width Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item I 10b I 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

"te :l|l|l|l|2|2 2 | 2 t 2 1 |2|2|

28. REPRESENTATIVE PROFILES: ite/ / /89/CD/0717/24/ /074/ ada/ /89/KR/0717/23/ /080/

0617&O717 - 128 Pag* 2 LAND UNIT : Pf«.8.2 Mapsheat : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb lc b. Description : Interfluves Intarfluves Interfluves — c. Z of Land Unit : 1001 100X 100X X SLOPES dl'. Steepness : 16 - 25X 16 - 251 16 - 25Z d2. Slopa langth : 101 - 200 m ' 101 - 200 m 101 - 200 m d3. Slopa euTvatuxa : Convex Convex Convex SOILS •1. USDA Clasa : troporthents eutropepts ' hapludalfs e2. X Facat : 601 25Z 1SX X

23. SOIL CBARACTERISTICS a. USDA Graat Group : troporthents eutropepts hapludalfs

b. Textura: topsoiL: Fine Fine Fine subsoil: Medium Fine Fine c. Depth: peatsoil: mineralsoil: Very shallow Very deep Moderately deep d. Drainage : Somewhat exessively Moderately well Moderately well NUTRIENTS : • . Exch. K: topsoil: — Medium Medium subsoil: -- ' Medium Low t. Total K20: topsoil: ~ High subsoil: — High g. Avail. P: method: — Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: — High Low subsoil: — High Very low OTHERS :— i. CEC pH 7 topsoil: -- High Very high subsoil: -- High High J. Reaction: topsoil: Neutral Neutral Slightly acid subsoil: Very strong acid Neutral Neutral I. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 50 cm q. Organic matter (X) : — 3.-5 9.7 r. TEB (meq/100 g) : — 29.0 «4.1 a. Total anal, profiles: 0 110

f. LAB CHECK : No Yes Yes

27. ADDITIONAL NOTES :

O617&O717 - 129 LAUD UNIT : Ff.8.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Pf.3.1 Pf.8.3 summit level hillock

<50m

unconsolidated sedimentary rocks,

1. LAND UNIT : F£.8.3 Plains, fine felsic sedimentary rocks, rolling with hillocks, strongly dissected 2. MAP SHEET : 0717 3. AREA : 218.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : claystone, , c. Formation : Tup , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation - :None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 20 I 16. ACCELERATED EROSION a. Occurrence : Comnon b. Evidence : Various 17. TERRAIN : Hillocky >16X, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60X of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 150 m Range : 110 - 140 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 23. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 14a | 14b | 19 I 20 | 21bI 22b | 22c || 22dl | 22d2 | 22el | 23b | 23c !| 23dI 23er 1 24 |25 | rate : 1 11 1 1 1 1 12 1 2 | 2 Ï 2 | 2 1| 2 | 2 | 1 1 1 11 || 1 1 1 1 2 |2 1

28. REPRESENTATIVE PROFILES: uda/ / /89/CD/0717/24/ /076/ ity/ 789/LH/0717/24/ /017/ uda/ / • /88/CD/0717/24/ /019/ uda/ /88/YM/0717/52/ /046/ ity/ / /88/CD/0717/24/ /021/

O617&O717 - 130 Fas* 2 LAND UNIT : Pf.8.3 Mapsheet : 0717 OB/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100Z 100* SLOPES dl. Steepness : 16 - 25Z 16 - 25* d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex «Convex SOILS el. USDA Class : dystropepts hapludults e2. Z Facet : 60Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Medium subsoil: Low Medium f. Total K20: topsoil: Low Medium subsoil: Low High g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total F: topsoil: Low Low subsoil: Low Very low OTHERS : i. CEC pH 7 topsoil: Low Medium subsoil: Low High j. Reaction: topsoil: Very strong acid Very strong acid subsoil: -Very strong acid Strong acid k. Al sat. topsoil: Medium Medium subsoil: High Medium 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. .-layer : q. Organic matter (Z) : 2.0 3.2 r. TEB (meq/100 g) : 3.9 13.6

8. Total anal, profiles:

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES

0617&0717 - 131 LAND UNIT : dPf.8.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

dPf.5.2 dPf.8.3 summit level dacite cover. hillock

<50m

1. LAND UNIT : dP£.8.3 Plains, fine felsic sedimentary rocks, rolling with hillocks, covered with icid tuffs, strongly dissected 2. MAP SHEET : 0717 3 AREA : 10.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/09/90 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 101 a. Weathering Partial b. Lithology clay, liparite, c. Formation Tmt 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES Not known 1«. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation Not relevant 15. VEGETATION/LAND USE , bush, scrub, alang-alang, upland crops, rainfed wetland rice Area used : 50 J 16. ACCELERATED EROSION a. Occurrence Localised • b. Evidence : Various 17. TERRAIN Hillocky =>16Z, 0-50 m 18. FLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included; 19. RELIEF AMPLITUDE a. Amplitude High b. Variability : Medium 20. ALTITUDE Minimum : 75 m Maximum : 150 m Range : 100 - 125 m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2- probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b I 22b I 22c | 22dl | 22d2 | 22el I 23b | 23c | 23d I 23er 24 | 25 |

2|z|2| 2| 2| 2 I 2 I

28. REPRESENTATIVE PROFILES: eot/ / /88/SS/0717/21/ /059/ ity/ /88/YH/0717/51/ /063/

O617&O717 - 132 Pa«« 2 LAUD UNIT : dPf.8.3 Mapsheet : 0717 08/12/80

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves e. Z of Land Unit : 1001 100Z SLOPES dl. Steepness : 16 - 25Z 16 - 25Z d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : troporthent dystropepts 02. Z Facet : 60Z 40Z

.23. SOIL CHARACTERISTICS a. USDA Great Group : troporthânts dystropepts

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Medium c. Depth: peatsoil: mineralsoil: Moderately shallow Deep d. Drainage : Exessively drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low Low t. Total K2O: topsoil: Low Very low subsoil: Low Very low g. Avail. P: method : Bray I Bray I topsoil: Medium Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Exessively acid Strong acid subsoil: Exessively acid Strong acid k. Al sat. topsoil: High High subsoil: Very high High 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Soot obstr. layer : 35 en q. Organic matter (Z) : 5.9 2.2 X. TEB (meq/100 g) : o.y 0.6 s. Total anal, profiles: 1 1

f. LAB CHECK : Yes Yes

27. ADDITIONAL HOTES : The soil data of Dystropepts are extrapolated from dPf.7.2 and • The data of Troporthents are from Hu. 1.3.3

0617&0717 - 133 LAND UNIT : Pfq.8.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

iummit t«v.l 3 Pf.4.2 t p

1. LAND UNIT : Pfq.8.3 Plains, fine and coarse felsic sedimentary rocks, rolling with hillocks, strongly dissected 2. MAP SHEET : 0717 3 AREA : 127.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 23 /8320-277 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology claystone, sandstone, c. ' Formation Qpmi , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE secondary forest, bush, scrub, rubber Area used 20 Z 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Various 17. TERRAIN Hillocky >16Z, 0-50 m 18. PLAN/ Dominant Not elongated and random > 601 of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 75 m Maximum : 155 m Range : 100 - 150 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er • | 24 | 25

:1|1|1|1|2|2| I 1 I 1 I

28. REPRESENTATIVE PROFILES: udk/ / /89/LH/0717/33/ /004/ odh/ /88/CD/0717/33/ /005/

O617&O717 - 134 Fa«« 2 LARD WIT : Pfq.8.3 Hapsbeet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier :' la lb b. Description : Interfluves Interfluves o. X of Land Unit : 100Z 100Z SLOPES dl. Steepness : 8 - 25Z 8 - 25Z d2. Slope length : 201 - 500 a 201 - 500 tn d3. Slope curvature : Convex Convex SOILS •1. DSDA Class : hapludox . kandiudults •2. I Facet : 60 Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox kandiudults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Very low' Low subsoil: Very low Very low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. F: method: Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total F: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: High High subsoil: Low Low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High High subsoil: High High 1. Al toxicity : No Yes n. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.3 4.8 r. TEB (meq/100 g) : 0.9 1.0

s. Total anal, profiles: 1

t. LAB CHECK : Yes Yes

• 27. ADDITIONAL NOTES : The soil data are extrapolated from Pfq.9.2

0617&0717 - 135 LAND UNIT : Pq.8.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGCtR 08/12/90

MAF IMAGE : CROSS SECTION :

<5Om

1. LAND UNIT : Pq.8.3 Plains, coarse felsic sedimentary rocks, rolling with hillocks, strongly dissected 2. MAP SHEET : 0717 3 AREA : 21.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 23 /8218-217 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. ^Weathering : Partial b. Lithology : sandstone, , c. Formation : Tmsk , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial* river 13. FISHERIES ; River 1*. RIVERS a. Floodriak water : Hone b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, alang-alang, rubber Area used : IS X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hillocky >16X, 0-50 m 18. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Range : 120 - 175 m Maximum : 200 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEÏ FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks 26. RELIABILITY (1- reliable, 2- probable, 3° tenable, 4- plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c | 22dl I 22d2 | 22el | 23b | 23c I 23d I 23er 24 I 25

rate : 1 I 1 2 | 2 | 2 | 2 2 I 2

28. REPRESENTATIVE PROFILES: est/ / /88/SS/0717/32/ /023/ odh/ /88/MR/0717/54/ /108/

O617&O717 - 136 Page 2 LAND UNIT : Pq.8.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier la lb b. Description Interfluves Interfluves c. I of Land Unit 100Z 100Z SLOPES dl. Steepness 16 - 25Z 16 - 25J 62. Slope length 201 - 500 m 201 - 500 m d3. Slope curvature Convex Convex SOILS el. USDA Class tropopsanments hapludox e2. Z Facet 60Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamments hapludox

b. Texture : topsoil: Coarse Coarse subsoil: Coarse Coarse c. Depth : peatsoi1: mineralsoil: Deep Very deep d. Drainage : Moderately well Somewhat exessively NUTRIENTS : e. Exch. K: topsoil: Very low Very low subsoil: Very low Very low t. Total K2O: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Low High subsoil: Very low Medium h. Total P: topsoil: Low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Medium Very low subsoil: Medium Very low j. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Very strong acid k. Al aat. topsoil: High subsoil: Medium 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free o. Other toxicity : p. Root obstr. layer : 85 cm q. Organic matter (Z) : 6.6 2.0 r. TEB (meq/100 g) : 0.5 0.4

8. Total anal, profiles:

t. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Hapludox are extrapolated from Pq.5.2 and Tropopsamndnts are from Fq.1.1

O617&O717 - 137 LAND UNIT : Pf.8.« Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Pf.8.4 Pf.4.3 summit level hillock

<50r

unconsotidated sedimentary rocks

1. LAND UNIT : P£.8.4 Plains, fine felsic sedimentary rocks, rolling with hillocks, extremely dissected 2. MAP SHEET : 0717 3. AREA : 52.1 km2 «..OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology claystone, , c. Formation Tmt 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 1«. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, coconut, rubber Area used 20 Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence . : Various 17. TERRAIN Hillocky >16I, 0-50 m 18. PLAN/ Dominant Not elongated and random > 602 of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium 20. ALTITUDE Minimum 100 m Maximum : 150 m Range 120 - 150 m 21. DRAINAGE a. Pattern Dendritic b. Density : High 24. VALLEY FLOOR Width Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : Small blocks

26. RELIABILITY (1° reliable, 2- probable, 3° tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el I 23b | 23c | 23d | 23er | 2« | 25 | rate :l|l|l|l|2|2| 2 | 2 1 I 1

28. REPRESENTATIVE PROFILES: uda/ / /89/LH/0717/52/ /044/

O617&O717 - 138 F«8* 2 LAND UNIT : Pf.8.* Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. X of Land Unit : 100* 100* SLOPES dl. Steepness : 16 - 251 8 - 16* d2. Slope length : 101 - 200 n 101 - 200 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : dystropepts hapludults e2. X Facet : 65* 35*

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture : topsoil: Moderately coarse Moderately fine subsoil: Moderately fine Moderately coarse c. Depth: peatsoil: miner-alsoil: Very deep Very deep d. Drainage Somewhat exessively Well drained NUTRIENTS : — ». Exch. K: topsoil: Very low subsoil: Very low f. Total K20: topsoil: Very low subsoil: Low g. Avail. P: method : Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Low subsoil: Very low J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Exessively acid k. Al sat. topsoil: Medium subsoil: Medium 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity ; ' p. Root obstr. layer ; q. Organic matter (*) : 2.4 r. TEB (meq/100 g) : 1.0 s. Total anal, profiles: 0 1

f. LAB CHECK No Yes

27. ADDITIONAL NOTES

O617&O717 - 139 LAND UNIT : Pf.9.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

K= <5Om

unconsolidated sedimentary rocks

1. LAND UNIT : Pf.9.2 Plains, fine felsic sedimentary rocks, hillocky {slopes >16%), moderately 2. MAP SHEET : 0717 3. AREA : 267.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z S. STATUS IDENTIFIERS : Updated by : . SS • Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85, 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 12S /8348-197 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : claystone, , c. Formation : Tup , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 20 * 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hillocky >16Z, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 125 m Maximum : 200 m Range : 150 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, «= plausible) item | 10b I 12a 114a | 14b | 19 | 20 I 21b| 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d |1 23ar 1 24 1! 25 i rate : 2 1 1 1 1 1 1 1 2 1 2 1 2 1 2 | 2 | 2 | 2 | 1 • 1 1 11 1 1 1 1 2 1 2 I

28. REPRESENTATIVE PROFILES: lty/ / /88/CD/0717/24/ /021/

O617&O717 - 140 Fag* 2 LAND UNIT : Pf.9.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100* 1001 Z t SLOPES dl. Steepness : 16 - 251 16 - 25Z d2. Slope length : 101 - 200 m 50 - 100 m d3. Slope curvature : Convex Concave SOILS el. USDA Class : dystropepts hapludults - 02. Z Facet : 60Z 40Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Fine Fine c. Depth: pestsoil: Shallow mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low subsoil: Low f. Total K20: topsoil: Low subsoil: Low g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Low subsoil: Low OTHERS : i. CEC pH 7 topsoil: Low subsoil: Low J. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 2.0 r. TEB Cmeq/100 g> • : 3.9 s. Total anal, profiles: 1 0 0 0

t. LAB CHECK : Yes Ho

27. ADDITIONAL NOTES : The soil data of Dystropept are extrapolated from Ff.8.3

O617&O717 - 141 LAUD UHIT : dPf.9.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

• dPf.9.2 dPf.3.1

<5Om

1. LAND UHIT : dPf.9.2 Plains, fine felsic sedimentary rocks, hillocky (slopes >161), covered with acid tuffs, moderately.dissected 2. MAP SHEET : 0717 3. AREA : 6.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/09/90 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 10* a. Weathering : Partial b. Lithology : clay, liparite, c. Formation : Tmt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : Not relevant 15. VEGETATION/LAND USE ; , bush, scrub, alang-alang, upland crops, rubber Area used : 50 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Hillocky >16I, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19'. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 200 m Range : 125 - 150 m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2- probable, 3= tenable, 4° plausible) item | 10b | 12a I 14a | 14b- | 19 I 20 | 21b I 22b I 22c | 22dl | 22d2 I 22el | 23b | 23c I 23d | 23er 24 I 25 I rate : 1 1 I 1 2 | 2 | 2 | 2 I 2 |

28. REPRESENTATIVE PROFILES: eot/ / /88/SS/0717/21/ /059/ . ity/ /88/YH/0717/51/ /063/

0617&0717 - 142 Page 2 LAND UNIT : dPf.9.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves e. • X of Land Unit : 100Z 100Z SLOPES dl. Steepness : 16 - 251 16 - 25Z d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : troporthents dystropepts •2. 1 Facet : 60Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents dystropepts

b. Texture : topsoil: Moderately fine Moderately fine subsoil: Moderately fine Medium e. Depth: peatsoil: mineralsoil: Moderately shallow Deep d. Drainage Exessively drained* Well drained NUTRIENTS : — e. Exch. K: topsoil: Low Low subsoil: Low Low f. Total K20: topsoil: Low Very low subsoil: Low Very low g. Avail. P: method : Bray I Bray I uopsoil: Medium Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low J. Reaction: topsoil: Exessively acid Strong acid subsoil: Exessively acid Strong acid i. Al sat. topsoil: High High subsoil: Very'high High 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 35 cm q. Organic matter (Z) : S.9 2.2 r. TEB (meq/100 g) : 0.9 0.6 s. Total anal, profiles: 1

f. LAB CHECK Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated from dPf.7.2 and The data of Troporthents are from Hu.1.3.3

0617&0717 - 143 LATO UNIT : Pfq.9.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

summit level Mq.9.2 uncofnolidand deposit

<50m

1. LAND UNIT : Pfq.9.2 Plains, fine and coarse felsic sedimentary rocks, hillocky (slopes >16Z), moderately dissected 2. MAP SHEET : 0717 3 AREA : 270.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 8. AERIAL PHOTOGRAPHS : 1:100.000 R23 /2S28-277 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : cLaystone, sandstone, c. Formation : Qpmi , 12. WATER a. Quality : Fresh b. Source - :Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, rubber Area used : 10 X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence Various 17. TERRAIN : Hillocky >16J, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 60 m Range : 75 - 140 m Maximum : 150 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderate 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4« plausible) item | 10b | 12a 1 14a | 14b | 19 1 20 | 21b I 22b | 22c | 22dl | 22d2 I 22el | 23b 1 23c | 23d | 23er 1 24 |1 25 | rate : 1 | 1 1 1 1 ! 1 1 2 | 2 1 2 1 2 1 1 | 2 | 1 1 1 1 1 2 1I 2 |

28. REPRESENTATIVE PROFILES: udk/ / /89/LH/0717/33/ /004/ odh/ /89/CD/0717/33/ /005/

0617&0717 - 144 Pag* 2 LARD UHIT : Pfq.9.2 Mapsheet : 0717 OB/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. I of Land Unit : 100Z 100Z SLOPES dl. Steepness : 16 - 251 16 - 25J d2. Slope length : 201 - 500 a 201 - 500 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : hapludox kandiudults e2. Z Facet : 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox kandiudults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Very low Low subsoil: Very low Very low t. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: High High subsoil: Low Low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High High subsoil: High High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.3 4.8 X. TEB (meq/100 g) : 0.9 1.0 s. Total anal, profiles:

t. LAB CHECK : Yes

27. ADDITIONAL ROTES

0617&0717 - 145 LAND UNIT : Pq.9.2 Mapsheet : 071/ LREP-SDBM, CSH-BOGQR 08/12/90

MAF IMAGE : CROSS SECTION :

Pq.9.2 «.5.4 summit level

<50m

Older sedimentary rocks (sand stone)

1. LAND UNIT : Pq.9.2 Plains, coarse felsic sedimentary rocks, hillocky (slopes >16I), moderately dissected 2. MAP SHEET : 0717 3. AREA : 78.« km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 23 /8218-217, 23 /8218-219 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROOK OUTCROP : 01 a. Weathering : Partial b. Lithology : sandstone, , c. Formation : Tmsk , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest Area used : 0 I 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hillocky >16J, 0-50 m 18. FLAN/ Dominant: Not elongated and random > 60% o£ area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability Medium 20. ALTITUDE Minimum : 100 m Maximum 200 m Range : 120 - 180 m 21. DRAINAGE a. Pattern: Dendritic b. Density Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None " b. Interfluves None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b I 19 | 20 | 21b I 22b | 22c I 22dl | 22d2 I 22el I 23b I 23c I 23d | 23er | 24 | 25 rate : 1 2| 2| 1 |

28. REPRESENTATIVE PROFILES: est/ / /88/SS/0717/32/ /023/ odh/ /88/JH/0717/54/ /142/

0617&O717 - 146 Pig* 2 LAND UNIT : Pq.9.2 Mapsheet : 0717 06/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluve o. Z of Land Unit . : 1001 100Z SLOPES dl. Steepness : 16 - 25* 16 - 25Z d2. Slope length : 101 - 200 m 101 - 200 d3. Slope curvature : Convex Convex SOILS •1. USDA Class : tropopsamments hapludox •2. Z Facet : 80Z 20Ï

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamments hapludox

b. Texture: topsoil: Coarse Coarse subsoil: Coarse . Coarse c. Depth: peatsoil: mineralsoil: Deep Extremely deep d. Drainage : Moderately well Well drained NUTRIENTS : e. Exch. K: topsoil: Very low Low subsoil: Very low Very low f. Total K2O: topsoil: Very low Very low subsoil: Very low Very low g. Avail. F: method : Bray I Bray I topsoil: Low High subsoil: Very low Low h. Total P: topsoil: Low Low subsoil: Very low Low OTHERS : i. CEC pH 7 topsoil: Medium Very low subsoil: Medium Very low J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Exessively acid k. Al sat. topsoil: High subsoil: Medium 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Silit free Salt free o. Other toxicity : p. Root obstr. layer : 85 cm q. Organic matter (Z) : 6.6 1.9 r. TEB (meq/100 g) : 0.5 0.7 a. Total anal, profiles: 1

f. LAB CHECK : ïes Yes

27. ADDITIONAL NOTES : The soil data of Tropopsamnent« are extrapolated from Pq.1.1

0617&0717 - 147 LAND UNIT : Pf.9.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Pf.9.3 summit level

unconsolidated sedimentary rocks.

1. LAUD UNIT : Pf.9.3 Plains, fine felsic sedimentary rocks, hillocky (slopes >16Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 135.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 31/10/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology claystone, , c. Formation Tup , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 1*. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, mixed gardens of fruit trees Area used 30 Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence Various 17. TERRAIN Hillocky >16Z, 0-50 m 18. PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium 20. ALTITUDE Minimum 100 m Maximum : 175 m Range 120 - 160 m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b i 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el | 23b | 23c I 23d | 23er | 24 | 25 I rate :l|l|l|l|2|2| 2 | 2 | 1 I 1 I 1 I 1 I 2 | 2 |

28. REPRESENTATIVE PROFILES: Ity/ / /88/CD/0717/24/ /021/ uda/ /89/LH/0717/52/ /044/

O617&O717 - 148 Page 2 LAND UNIT : Pf.9.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100Z 100Z SLOPES dl. Steepness : 16 - 25Z 16 - 251 d2. Slope length : 101 - 200 m 101 - 200 m d3. Slope curvature : Convex Convex SOILS . el. USDA Class : ' dystropepts hapludults e2. Z Facet : 60Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoll: Moderately fine Moderately -fine subsoil: Moderately fine Moderately coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage . : Well drained Well drained NUTRIENTS :-- e. Exch. K: topsoil: Low Very low subsoil: Low Very low 1. Total K2O: topsoil: Low Very low subsoil: Low Low g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Very low • J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Exessively acid k. Al sat. topsoil: Medium Medium subsoil: High Medium 1. Al toxiclty : Yes No D. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 2.0 2.4 r. 1KB (meq/100 g) : 1.9 1.0

a. Total anal, profiles: .1

t. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data are extrapolated from Pf.8.3 & Pf.8.4

O617&O717 - 149 LAND UNIT : Ffq.9.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE CROSS SECTION :

.summit level Pfq.5.2 Pfq.9.3 unconsolidsted deposit

'50m

1. LAND UNIT : Pfq.9.3 Plains, fine and coarse felsic sedimentary rocks, hillocky (slopes >16Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 413.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 23 /8320-279, 23 /8320-279, 23 /8320-277 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : claystone, sandstone, c. Formation : Qpmi 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary fürest, rubber Area used : 10 Z 16. ACCELERATED EROSION a. Occurrence Common b. Evidence 17. TERRAIN Hillocky >16Z, 0-50 m 18. PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium 20. ALTITUDE Minimum 175 m Maximum : 210 m Range 190 - 200-, m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 |

«*•<> : 1 I 1 I 1 I 1 I 2 2 | |l|2|

28. REPRESENTATIVE PROFILES: udk/ / /88/CD/0717/33/ /008/ odh/ /88/CD/0717/33/ /005/

0617&O717 - 150 Pago 2 LAND UNIT : Pfq.9.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. 1 of Land Unit : 100Z 100Z 01 SLOPES dl. Steepness : 16 - 251 16 - 25Z d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : hapludox kandiudults e2. Z Facet : 80Z 201 OX

23. SOIL CHARACTERISTICS . a. USDA Great Group : hapludox kandiudults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Moderately wall NUTRIENTS : e. Exch. K: topsoil: Very low Low subsoil: Very low Very low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: High Low subsoil: Low Very low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High High subsoil: High High 1. Al toxicity : No No m. Acid'sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.3 6.2' r. TEB (oeq/100 g) : 0.9 0.8 a. Total anal, profiles:

£. LAB CHECK Yes Yes

27. ADDITIONAL NOTES : The soil data of Hapludox are extrapolated from Pfq.9.2

0617&0717 - 151 LATO UHU : Pfq.B.4 Mapsbeet : 0717 LRZP-SDBM, CSR-BOC30R 08/12/90

HAF IMAGE : CROSS SECTION :

<5Om

1. LAND UNIT : Pfq.9.4 Plains, fine and coarse falsic sedimentary rocks, hillocky (slopes ), extremely dissected 2. MAP. SHEET : 0717 3 AREA : 198.9 kra2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 23 /8320-279, US /8319-85 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology claystone, sandstone, c. Formation Qpmi , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE logged forest, secondary forest Area used 0 X 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Various 17. TERRAIN Hillocky >16Z, 0-50 m 18. PLAN/ Dominant Not elongated and random > 60S o£ area crested/peaked PROFILE ' Included 19. RELIEF AMPLITUDE a. Amplitude Medium b. Variability : Medium 20. ALTITUDE Minimum 100 m Maximum : 220 m Range 120 - 200 m 21. DRAINAGE a. Pattern Dendritic b. Density : High 2«. VALLEY FLOOR Width Very narrow 23. FRAGMEN a. Valleys None b. Interfluves : None

26. RELIABILITY <1= reliable, 2- probable, 3= tenable, 4= plausible) Item | 10b | 12a I 14a | 14b | 19 1| 20 | 21b .| 22b | 22c |I 22dl | 22d2 I 22el I 23bI 23c| 23d I 23er 1 24 1 25 |

rate : 1 | 1 1 1 I X | 2 1 2 1 2 1. 2 | 2 || 2 | 2 | 1 1 I 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: odh/ / /89/CD/0717/24/ /024/

O617&O717 - 152 Fags 2 LAND UNIT : Pfq.9.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100Z 1001 SLOPES dl. Steepness : 16 - 25Z 16 - 25* d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : hapludox kandiudults e2. Z Facet : 80Z 20X

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludox kandiudults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained RUTRIENTS : e. Exch. K: topsoil: Low subsoil: Very low f. Total K2O: topsoil: Very low subsoil: Very low g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low i. CEC pH 7 topsoil: Medium subsoil: Low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: High subsoil: High 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p.. Root obstr. layer : q. Organic matter (Z) : 4.4 r. TEB (meq/100 g) : 0.7

8. Total anal, profiles: 1

t. LAB CHECK : Yes

27. ADDITIONAL NOTES :

0617&0717 - 153 LAND UNIT : Qd.1.1.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Qd. 1.1.3 ie summit level a. interfluves b. valley bottom b b b * : . ; •. : * •'••

1. LAND UNIT : Qd.1.1.3 Toba acid tuff highlands, acid tuffs, plateau, flat (slopes <3Z), strongly dissected 2. MAP SHEET : 0717 3 . AREA : 235.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100% 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : dacite, , c. Formation : Qvt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 1*. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, upland crops Area used : 10 X 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence Various 17. TERRAIN Flat, slope < 31, 0-50 m 18. FLAN/ Dominant Not elongated and random 40-60Z of area flat-topped PROFILE Included Elongated and random 40-60Z of area flat-topped 19. RELIEF AMPLITUDE a. Amplitude Low b. Variability : Low 20. ALTITUDE Minimum 1000 m Range 1100 - 1250 m Maximum :1279 m 21. DRAINAGE a. Pattern Dendritic 2*. VALLEY FLOOR Width Very narrow . b. Density : Moderately high 23. FRAGMEN a. Valleys None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable. 3= tenable, 4= plausible) item | 10b I 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c I 22dl I 22d2 I 22el | 23b | 23c | 23d | 23er | 24 | 25 rate :l|2|l|l|2|2| I 1 I 1 I 2 | 1 | | 2

28. REPRESENTATIVE PROFILES : iny/ / /87/MR/0618/32/ /026/ ith/ /89/YM/0717/51/ /050/

0617&0717 - 154 Page 2 LAUD UNIT : Qd. 1.1.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la la b. Description : Intarfluves Ihterfluves e. X of Land Unit : 100Z 100Z SLOPES dl. Steepness : < 3Z <• 3Z d2. Slope length : > 500 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts e2. I Facet : 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Moderately fine Fine c. Depth: , peatsoil: mineralsoil: Extremely deep Moderately deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Very low Medium subsoil: Very low Medium f. Total K20: topsoiL: High Very low subsoil: High Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low High OTHERS : i. CEC pH 7 topsoil: Low Very low subsoil: Low Very high j. Reaction : topsoil: Very strong acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: High Low subsoil: High Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 195 cm q. Organic matter (Z) : 1.6 9.7 r. TEB (meq/100 g) : 1.1 18.9

8. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Dystrandepts are extrapolated from Qd.1.1.3, 0616 sheet and the data of Humitropept are from Qd.2.3.4

O617&O717 - 155 LAUD UNIT : Od.1.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

MAP IMAGE : CROSS SECTION :

/ i *- '. VHf.1.3.i3 Qd. 1.3.3 Qd.1.2.3-

1. LAND UNIT : Qd.1.2.3 Toba acid tuff highlands, acid tuffs, upper slopes with gently sloping summit level (slopes 3-8Z), strongly dissected 2. MAF SHEET : 0717 3. AREA : 59.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS . Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 T2 /8323-163, US /8319-97 9; RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Llthology : dacite, , c. Formation : Qvt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrlsk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE ;moist primary submontane forest, bush, scrub, upland crops Area used : 25 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Undulating 3-8X, 0-50 m 18. PLAN/ Dominant: Not elongated and random 40-603E of area flat-topped • PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 600 m Range : 900 - 1100 m Maximum : 1200 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2- probable, 3- tenable, 4- plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b I 22b I 22c | 22dl I 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 rate : 1 1|1|2|2|2|3|3| 2| 2| I 2 ! 2

28. REPRESENTATIVE PROFILES: lny/ / /87/MD/0618/34/ /030/ ith/ /89/YM/0717/51/ /050/

061760717 - 156 P«S* 2 LAND UNIT : Qd.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves - Interfluves c. Z of Land Unit : 100Z 100Z SLOPES dl. Steepness : 3 - 8Z 0 - 8Z d2. Slope length : > 500 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts e2. Z Facet : 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Moderately coarse Fine subsoil: Coarse Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Well drained Well drained NUTRIENTS : .6. Exch. K: topsoil: Medium Medium subsoil: Low Medium f. Total K20: topsoil: Very high Very low subsoil: Very high Medium g. Avail. P: method : Bray I Bray I topsoil: High Low subsoil: High Very low h. Total P: topsoil: Low Very low subsoil: Low High OTHERS : i. CEC pH 7 topsoil: Low Very low subsoil: Very low Very high j. Reaction: topsoil: Strong acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: None, very low Low subsoil: None, very low Medium 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 110 cm q. Organic matter (Z) : 2.1 9.7 r. TEB (œeq/100 g) ' : 2.5 18.9

a. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Dystrandepts are extrapolated from Qd.1.2.3, 0618 sheet and the data of Humitropepts' are from Qd.2.3.$

0617&0717 - 157 LAND UNIT : Qd.1.2.« Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

1. LAND UNIT : Qd.1.2.4 Toba acid tuff highlands, acid tuffs, upper slopes with gently sloping summit •level (slopes 3-8Z), extremely dissected MAP SHEET : 0717 3 AREA : 290.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final SATELLITE SCENES 128/58/08/08/85 AERIAL PHOTOGRAPHS 1:100.000 RADAR STAR-1/250/88/0717-4 PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Llthology dacite, , c. Formation : Qvt , 12. WATER a. Quality Fresh b. Source Rain, Perennial river FISHERIES : River RIVERS a. Floodrisk water : None b. Floodrisk sod.: None c. Inundation : None 15 VEGETATION/LAND USE : moist primary submontane forest, bush, scrub, upland crops Area used : 20 Z 16 ACCELERATED EROSION a. Occurrence : Extensive b. Evidence : Gulleys 17 TERRAIN : Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant : Not elongated and random 40-60% of area flat-topped PROFILE Included: 19 RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20, ALTITUDE Minimum : 800 m Maximum : 935 m Range : 825 .- 900 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Small block

26. RELIABILITY (1= reliable, 2= probable, 3» tenable, 4=^plausible) item | 10b | 12a 114a | 14b | 19 | 20 | 21b I 22b | 22c |! 22dl | 22d2 | 22el !I 23b •1 | 23c | 23d |I 23er 1 24 1 25 | rate : 1 1 2 1 1 1 1 1 2 1 2 | 2 | 3 | 3 | 2 | 2 | 1 1 1 1 1 1 2 1 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: iny/ / /87/MD/0618/34/ /030/ ith/ /89/YM/0717/51/ /050/

O617&O717 - 158 Faga 2 LAND UNIT : Qd. 1.2.4 Mapsheet : 0717 08/12/80

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. t of Land Unit : 1001 100Z SLOPES dl. Steepness : 3-81 3 - 8* d2. Slope length : > 500 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts «2. X Facet : 801 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Moderately coarse Fine subsoil: Coarse Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Well drained Well drained HUTMENTS : e. Ezch. K: topsoil: Medium Medium subsoil: Low Medium t. Total K20: topsoil: Very low Very low subsoil: Very low Medium g. Avail. F: method : Bray I . Bray I topsoil: High Low subsoil: Bigh Very low h. Total P: topsoil: Low Very low subsoil: Low High OTHERS : i. CEC pH 7 topsoil: Low Very low subsoil: Very low Very high J. Reaction: topsoil: Moderately acid Very strong acid subsoil: Moderately acid Very strong acid k. Al sat. topsoil: None, very low Low subsoil: None, very low Medium 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not :relevant n. Salinity (ec) : Salt free SnU free o. Other toxicity : p. Root obstr. layer : 110 cm q. Organic matter (X) : 2.1 9.7 r. TEB (meq/100 g) : 2.5 18.9 s. Total anal, profiles: 1

f. LAB CHECK Yes Yes

27. ADDITIONAL NOTES The soil data of Dystrandepts are extrapolated from Qd.1.2.4, sheet 0618 and the data of Humitropepts are from Qd.2.3.4

O617&O717 - 159 LAND UNIT : Qd. 1.3.3 Mapaheet : 0617 LREP-SDBM, CSR-BOGQR 08/12/90

HAP IMAGE : CROSS SECTION :

• Qd.1.3.3- » Qd.1.2.3

1. LAND UNIT : Qd.1.3.3 Toba acid tuff highlands, acid tuffs, upper slopes with sloping summit level (slopes 8-162), strongly dissected 2. MAP SHEET : 0617 3. AREA : 65.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/88/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 8. RADAR : STAR-1/250/88/0617-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : dacite, , c. Formation : ' Qvt , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, upland crops Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence Gulleys 17. TERRAIN • : Rolling 8-161, 0-50 m 18. PLAN/ Dominant: Not elongated and random 40-601 of area flat-topped PROFILE Included: Not elongated and random > 60X of area flat-topped 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 1000 m Maximum : 1200 m Range : 1050 - 1150 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 2«. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys-t,Nong b. Interfluves : Small blocks

26.' RELIABILITY (1= reliable, 2= probable, .3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22el | 23b I 23c I 23d I 23er | 24 | 25

3 | 3 2 I 2 I I 2

28. REPRESENTATIVE PROFILES: iny/ / /87/MD/0618/64/ /008/ ith/ /89/YM/0717/51/ /050/

O617&O717 - 160 Page 2 LAND UNIT : Qd.1.3.3 Jiapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. X of Land Unit : 100Z 100Z SLOPES dl. Steepness : 8-16% 8 - 16* d2. Slope length : 201 - 500 m 201 - 500 ni d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts e2. X Facet : 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Well drained Well drained NUTRIENTS : e. Ezch. K: topsoil: Low Medium subsoil: Very low Medium f. Total K2O: topsoil: High Very low subsoil: Very high Medium g. Avail. F: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Very low High OTHERS : I. CEC pH 7 topsoil: High Very low subsoil: Low Very high j. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: Very high Low subsoil: Very high Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 120 cm q. Organic matter (I) : 6.6 9.7 r. TEB (meq/100 g) : 0.3 18.9 s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Dystrandepts are extrapolated from 0618 sheet and the data of Humitropepts are from Qd.2.3.4

O6X7&O717 - 161 LAND UNIT : Qd.1.3.4 Mapsheot : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

•\\W\ t v

1. LAND UNIT : Qd.1.3.4 Toba acid tuff highlands, acid tuffs, upper slopes with sloping sumnit level (slopes 8-161), extremely dissected 2. MAP SHEET : 0717 3 AREA : 333.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS .1:100.000 T2 /8323-165, 14S /8319-101 9. RADAR STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering ; Partial b. Lithology dacite, , c. Formation : Qvt 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 1*. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, upland crops Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence ; Extensive b. Evidence : Gulleys 17. TERRAIN : Rolling 8-16Z, 0-50 m 18. PLAN/ Dominant: Not elongated and random 40-60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 800 m Range : 900 - 1200 m Maximum : 1400 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks 26. RELIABILITY (1- reliable, 2- probable, 3» tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 I 20 | 21b I 22b | 22c |I 22dl | 22d2 | 22el 1 23b | 23c I 23d | 23er 1 24 j1 25 | w*»-t 4 1 2 1 1 1 1 1 2 1 2 1 2 1 3 | 3. || 2 I 2 | 1 1 1 1 2 1 1 1 1 1 2 1| 3 1

28. REPRESENTATIVE PROFILES: lny/ / /87/MD/0618/64/ /008/ ith/ /89/YM/0717/51/ /050/

O617&O717 - 162 Page 2 LAND UNIT : Qd.1.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100Z 100Z SLOPES dl. Steepness : 8 - 16Z 8 - 16Z d2. Slope length : ? 500 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts eZ. Z Facet : 80Z 20 X

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture : topsoi1: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Well draine.l Well drained NUTRIENTS : e. Exch. K: topsoi1: Low Medium subsoil: Very low Medium f. Total K2O: topsoil: High Very low subsoil: Very high Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Very low High OTHERS : i. CEC pH 7 topsoil: High Very low subsoil: Low Very high j. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: Very high Low subsoil: Very high Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not-relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 120 cm q. Organic matter (X) : 6.6 9.7 r. TEB Cmeq/100 g) : 0.3 18.9 s. Total anal, profiles: 1

f. .LAB CHECK

27. ADDITIONAL NOTES : The soil data of Dystrandepts are extrapolated from 0618 sheet and the data of Humitropepts are from Qd.2.3.4

0617&O717 - 163 LAND UNIT : Qd.1.4.3 Mapshoet : 0717 LREP-SDBM, CSR-BOGOR 08/12/80

HAP IMAGE : CROSS SECTION :

Ma.2.3.4. '. Qd. 1.4.3- Ma.2.3.4

1. LAND UNIT : Qd.1.4.3 Toba acid tuff highlands, acid tuffs, broad, gently sloping valley fills with undulating relief"(slopes 3-8Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 28.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS : Updated by : SS Edit data: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 US /8323-S7 , T2 /8323-169 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Llthology : dacite, , c. Formation : Qvt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River — 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation • : None 15. VEGETATION/LAND USE ; , bush, scrub, alang-alang, rubber Area used : 15 I 16. ACCELERATED EROSION a. Occurrence : Conraon b. Evidence : Various 17. TERRAIN : Undulating 3-8Z, 0-50 m 18. FLAN/ Dominant: Not elongated and random 40-60X of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 400 m Maximum : 600 m Range : 450 - 550 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 2*. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 114a | 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 I 22el || 23b |1 23c I 23d | 23er 1 24 1 25 |

rate : 1 I1 V 1 2 I 2 | 2 | 2 | 2 1 2 | 2 |1 2 | 2 | 1 |1 1 11 1 1 1 1 1 1 2 1 3 |

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/51/ /050/ iny/ /87/MD/0618/64/ /00B/

O617&O717 - 164 F«8« 2 LAND UNIT : Qd.1.4.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la b. Description : Interfluves Interfluves c. Z of Land Unit : 100Z 100Z SLOPES dl. Steepness : 0 - 8Z 3 - 8Z d2. Slope Length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : ' dystrandepts humitropepts e2. Z Facet : 601 35Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: roineralsoil: Very deep Moderately deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Medium subsoil: Very low Medium f. Total K20: topsoil: High Very low subsoil: Very high Medium g. Avail. F: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total F: topsoil: Low Very low subsoil: Very low High OTHERS : i. CEC'pH 7 topsoil: High Very low subsoil: Low Very high J. Reaction : topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: Very high Low subsoil: Very high Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 120 cm q. Organic matter (Z) : 6.6 9.7 r. TEB (meq/100 g) : 0.3 8.9 a. Total anal, profiles:

f. LAB CHECK : Yes

27. ADDITIONAL NOTES : The soil data of Dystrandepts are extrapolated from 0618 sheet and the data of Humitropepts are from Qd.2.3.4

0617&0717 - 165 LAND UHU : Qd.1.5.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

1. LAND UNIT : Qd.1.5.3 Toba acid tuff highlands, acid tuffs, broad, gently sloping valley fills with rolling relief (slopes 8-16Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 33.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 T2 /8323-167 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : dacite, , • •- c. Formation : Qvt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None • *. 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, horticultural crops, upland crops Area used : 30 Z 16. ACCELERATED EROSION a. Occurrence : Common . b. Evidence : Various 17. TERRAIN : Rolling 8-16Z, 0-50 m 18. PLAN/ Dominant: Not elongated and parallel < 40Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 700 m Maximum : 900 m Range : 750 - ' 800 m "2T. DRAINAGE a. Pattern: Parallel b. Density : Moderately high 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a..Valleys: Small blocks b. Interfluves : Medium blocks 1

26. RELIABILITY (1= reliable, I probable, 3= tenable, 4= plausible)

item | 10b I 12a I 14a | 14b | M 1 ( O t 1 1 20 | 2ib 1 22b | 22c I 22dl | 22d2 | 22el 1 23b | 23c I 23d |I 23er 1 24 1 25 |

rate : 2 | 1 1 ! 1 1 1 1 2 | 2 1 2 | 3 |1 2 | 2 | 1 I"! 1 1 I 1 1 2 1 3 |

28. REPRESENTATIVE PROFILES: •lny/ / /87/JH/0617/64/ /103/ ith/ /89/YM/0717/51/ /050/

0617&0717 - 166 Page 2 QUIT : Qd.l.S.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. X of Land Unit : 100Z 1001 SLOPES dl. Steepness : 8 - 16X 8 - 161 d2. Slope length : 201 - 500 m 201 - >00 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : dystrandepts humitropepts e2. X Facet : 80Z 201

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Deep Moderately deep d. Drainage : Well drained • Moderately veil NUTRIENTS : e. Exch. K: topsoil : Low Medium subsoil: Very low Medium f. Total K20: topsoil: Very high Very low subsoil: Very high Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low High OTHERS : i. CEC pH 7 topsoil: Medium Very low subsoil: Medium Very high j. Reaction: topsoil: Strong acid Very strong acid " subsoil: Strong acid Very strong acid k. Al sat. topsoil: Medium Low subsoil: None, very low Medium 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 92 cm q. Organic matter (Z) : 9.6 9.7 r. TEB (meq/100 g) : 0.7 18.9 s. Total anal, profiles: 1

f. LAB CHECK : yes

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated fron Od.2. 3 . 4 and the data of Dystrandepts axe from Qd. 1.6.4

0617&0717 - 167 LAHD UNIT : Qd.1.5.4 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

Mg.2.2.3 -Qd. 1.5.4-

1. LAND UNIT : Qd.1.5.4 Toba acid tuff highlands, .acid tuffs, broad, gently sloping valley fills with rolling relief (slopes 8-16%), extremely dissected 2. MAP SHEET : 0617 3 AREA : 178.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/65 8. AERIAL PHOTOGRAPHS 1:100.000 S. RADAR STAR-1/250/88/0617-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology dacite, , c. Formation Qvt 12. .WATER a. Quality None b. Source Rain, Perennial river 13. FISHERIES None 1*. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, irrigated wetland rice Area used : 30 Z 16. ACCELERATED EROSION a. Occurrence : Extensive ... b. Evidence : Gulleys 17. TERRAIN . : Rolling 8-16Z, 0-50 m . . 18. PLAN/ Dominant: Not elongated and parallel > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Medium 20. ALTITUDE Minimum : 600 m Maximum : 940 m Range : 700 - 800 m 21. DRAINAGE a. Pattern: Parallel b. Density : Moderately high 24. VALLEY FLOOR Width : Narrow 23. FRAGMEN a. Valleys: Small blocks b. Interfluves : Small blocks

26. RELIABILITY (1--reliable, 2- probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 I 20 | 21b | 22b | 22c !| 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er 1 24 1 25 | rate : 1 I 1 1 1 1 1 12 1 2 | 2 1 2 | 2 |1 2 '| 2 | 1 1 1 1 1 1 1 1 1 \ 2 1 2 |

28. REPRESENTATIVE PROFILES: iny/ / /87/JH/0617/64/ /103/ ith/ /89/ÏM/0717/51/ /050/

0617&07a7 - 168 Page 2 LAND UNIT : Qd.1.5.4 Mapshaet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100Z 100Z SLOPES dl. Steepness : 8 - 16Z 8 - 16Z d2. Slope length : > S00 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts e2. Z Facet : 601 401

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth : peatsoil: nineralsoil: Deep Moderately deep d. Drainage Well drained Well drained NUTRIENTS : — e. Exch. K: topsoil: Low Medium subsoil: Very low Medium t. Total K20: topsoil: Very high Very low subsoil: Very high Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low High i. CEC pH 7 topsoil: Medium Very low subsoil: Medium Very high J. Reaction: topsoil: Strong acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: Medium Low subsoil: None, very low Medium 1. Al toxlcity No No m. Acid sulph. pot. Not relevant Not relevant a. Salinity (ec) Salt free Salt free o. Other toxicity p. Root obstr. layer 92 cm q. Organic matter (Z) 9.6 9.7 r. TEB (meq/100 g) 0.7 18.9 s. Total anal, profiles: 1

t. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated from Qd.2.3.4 and the data of Dystrandepts are from Qd. 1.6.4

0617&O717 - 169 UND UNIT : Qd.1.6.4 Mapsheet : 0617 LREP-SDBM, CSR-BOGCR 08/12/90

MAP IMAGE : CROSS SECTION

Ho. 1.3.4* -•Od. 1.6.4.

1. LAND UNIT : Qd.1.6.4 Toba acid tuff highlands, acid tuffs, broad, sloping valley fills with undulating' relief (slopes 3-8Z), extremely dissected 2. MAP SHEET : 0617 3 AREA : 77.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0617-5 10. PARENT MATERIAL 11. ROCK OUTCRO'P : 0Z • a. Weathering Partial b. Lithology dacite, , c. Formation Qvt 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES : None 14. RIVERS' a. Floodrisk water None b. Floodrisk sed.: Nona c. Inundation None 15. VEGETATION/LAND USE ' , bush, scrub, alang-alang Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Gulleys 17. TERRAIN : Undulating 3-8X, 0-50 m 18. PLAN/ Dominant: Not elongated and parallel > 60* of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 500 m Range : 600 - 850 m Maximum : 1000 m 21. DRAINAGE a. Pattern: Parallel 24. VALLEY FLOOR Width : Very narrow b. Density : High .25. FRAGMEN a. Valleys: None b. InterfJ.uves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item I 10b I 12a | 14a | 14b 1 19 I 20 j 21b | 22b | 22c | 22dl | 22d2 I 22el | 23b I 23c I 23d | 23er | 24 | 25

ate : 1 I 1 I 2 I 2 I 2 I 2 I 2 | 1 | 1 1 | I 2 I 2 I

28. REPRESENTATIVE PROFILES: iny/ / /87/JH/0617/64/ /103/ ith/ /89/YM/0717/51/ /050/

O617&O717 - 170 Pa«e 2 LAHD UHIT : Qd.1.6.4 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluve8 Interfluves e. X of Land Unit : 100Z 100Z SLOPES dl. Steepness : 3 - 81 3 - 81 d2. Slope length : 101 - 200 m 101 - 200 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : dystrandepts humitropepts e2. Z Facet : 601 40Z

23. SOIL CBASACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Deep Moderately deep d. Drainage : Well drained Moderately well NUTRIENTS : --- e. Exch. K: topsoil: Low Medium subsoil: Very low Medium f. Total K2O: topsoil: Very high Very low subsoil: Very high Medium g. Avail. P: method: Bray I Bray. I topsoil: Very low Low subsoil: Very low Vary low h. Total P: topsoil: Very low Very low subsoil: Very low High OTHERS : i. CEC pH 7 topsoil: Medium Very low subsoil: Medium Very high J. Reaction: topsoil: Strong acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: Medium Medium subsoil: None, very low Low 1. Al toxicity : Ho No •. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 92 cm q. Organic matter (Z) : 9.6 9.7 X* TEB (meq/100 g) : 0.7 18.9 s. Total anal, profiles: 1

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated from Qd.2.3.4

0617&0717 - 171 LAND UNIT : Qd.1.7.3 Hapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

M..2.2.3 Qd.1.7.3

1. LAND UNIT : Qd.1.7.3 Toba.acid tuff highlands, acid tuffs, broad, sloping valley fills with rolling relief (slopes 8-16Z), strongiy dissected 2. MAP SHEET : 0617 3 AREA : 123.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /8323-51 ,"T2 /8'323-167 9. RADAR STAR-1/250/88/0617- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. LithoLogy dacite, , c. Formation Qvt , 12. WATER a. Quality Fresh b. Source ; Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, alang-alang, upland crops Area used ; 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN Rolling 8-16Z, 0-50 m 18. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 750 m Range : 800 - 1100 m Maximum : 1150 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks 2B. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | IS 1 20 | 21b I 22b | 22c | 22dl | 22d2 I 22el | 23b | 23c | 23d | 23er | 24 | 25 | rut. : 1 i | 2 2 | 2 | 2 | 2 1 | 1 1 | I 2

28. REPRESENTATIVE PROFILES: lny/ / /87/KR/0618/22/ /040/ ith/ /89/YM/0717/51/ /050/

0617&0717 - 172 Fas« 2 LAND UNIT : Qd.1.7.3 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Deacription : Interfluves Interfluves e. I of Land Unit : 1001 1001 SLOPES dl. Steepness : 8-161 8 - 16Z d2. Slope length : 101 - 200 m 101 - 200 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : dystrandepts humitropepts e2. X Facet : 80Z 20Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoll: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Moderately well Moderately well NUTRIENTS : • e. Exch. K: topsoil: Very low Medium subsoil: Very low Medium f. Total K20: topsoil: Medium Very low subsoil: Medium Medium g. Avail. P: method: Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low High OTHERS :--- 1. CEC pH 7 topsoil: Low Very low subsoil: Low Very high j. Reaction: topsoil: Strong acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: Medium Low subsoil: High Medium 1. Al toxicity : No No m. Acid aulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Ï) : 1.7 9.7 T. TEB (meq/100 g) : 0.6 18.9 a. Total anal, profiles:

f. LAB CHECK Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystrandepts are extrapolated from 0618 sheet and the data of Humitropepts are from Qd.2.3.4

0617&0717 - 173 LAUD UNIT : Od.1.8.3 Mapsheet : 0617 LREP-SDBM, CSR-BOGCK 08/12/90

HAP IMAGE : CROSS SECTION :

H0.1.3.3 * -Qd. 1.8.3

1. LAND UNIT : Qd.1.8.3 Toba acid tuff highlands, acid tuffs, narrow infilled river valleys, strongly dissected 2. MAP SHEET : 0617 3 AREA : 33.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /8323-51 9. RADAR STAR-1/250/88/0617-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology dacite, , c. Formation ; Qvt 12. WATER a. Quality : Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, bush, scrub, alang-alang, rubber Area used : 20 X 16. ACCELERATED EROSION a. Occurrence : Localised . b. Evidence : Various 17. TERRAIN : Rolling 8-16J, 0-50 m 18. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 500 m Maximum : 700 m Range : 500 - 650 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

|2|2|

28. REPRESENTATIVE PROFILES: ity/ / /89/LH/0717/14/ /115/ ith/ /89/YM/0717/51/ /050/

0617&0717 - 174 F«S* 2 LAND UNIT': Qd.1.8.3 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves e. Z of Land Unit : 100Z 100Z SLOPES dl. Steepness : 8 - 16Z 8 - 16Z d2. Slope length : 101 - 200 a 101 - 200 m d3. Slope curvature : Convex Convex SOILS •1. USDA Class : dystropepts humitropepts •2. Z Facet : 60J 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Well drained Moderately well NUTRIENTS : e. Eich. K: topsoil: High Medium subsoil: Medium Medium f. Total K2O: topsoil: Very high Very low subsoil: Very high Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Very low High OTHERS : i. CEC pH 7 topsoil: Low Very low subsoil: Low Very high j. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: Hone, very low Low subsoil: None, very low Medium 1. Al toxicity : No No m. Acid sulph. pot. : Not relevant Not :relevant n. Salinity (ec) : Salt free Suit free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 1.4 9.7 r. TEB (meq/100 g) : S.8 18.9 s. Total anal, profiles: 1 1 0

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated from Qd.2.3.4

0617&0717 - 175 LAND UNIT : Qd.2.1.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/80

MAF IMAGE CROSS SECTION :

Hfq. -Qd.2.1.2 - 1.3.3 same summit level, undulating relief

3-8%=

1. LAND UNIT : Qd.2.1.2 Toba acid tuff lowlands and footslopes, acid tuffs, gently sloping plains (slopes 3-8Z), moderately dissected 2. MAP SHEET : 0717 3 AREA : 22.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/O8/85 8. AERIAL PHOTOGRAPHS : 1:100..000 9. RADAR : STAR-1/250/68/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partitil b. Lithology : dacite, . c. Formation * :Ovt 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodr'isk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, upland crops Area used : 25 X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Undulating 3-81, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: 'Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 300 m Range : 150 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item I 10b I 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er I 24 I 25 I rate :l|2|2|2|2|2| 2 1 •2 | | 1 I 2 I 2 |

28. REPRESENTATIVE PROFILES: ity/ / /87/PT/0618/53/ /016/ uda/ /87/MR/0618/64/ /006/

O617&O717 - 176 Fags 2 LAND UNIT : Qd.2.1.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 1001 100Z SLOPES dl. Steepness : 3 - 8Z 3 - 8Z d2. Slope length : 101 - 200 m 101 - 200 m d3. Slope curvature : Convex Convex SOILS el. USDA Class : dystropepts hapludults e2. Z Facet : 75Z 251

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mlneralsoil: Very deep Extremely deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: High Medium subsoil: Medium Low f. Total K20: topsoil: Very high Very high subsoil: Very high Very high g. Avail. F: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Moderately acid "Very strong acid subsoil: Moderately acid Strong acid k. Al sat. topsoil: None, very low Medium subsoil: None, very low High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 30 cm q. Organic matter (Z) : l.*i 3.A r. TEB (meq/100 g) : 5.8 0.9 s. Total anal, profiles

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data are extrapolated data from Qd. 1.2.1, sheet 0618

0617&0717 - 177 LAND UNIT : Qd.2.2.2 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION Hq. 1.3.3

Hq. •Qd.2.2.2 1.3.3 same summit level undulating relief a. interfluves b. valley bottom

1. LAND UNIT : Qd.2.2.2 Toba acid tuff lowlands and footslopes, acid tuffs, flat plains (slopes <3X), moderately dissected 2. MAP SHEET : 0617 3 AREA : 57.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 8. AERIAL PHOTOGRAPHS 1:100.000 10H / -42 , 10H / -44 9. RADAR STAR-1/250/88/0617- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology dacite, , c. Formation Qvt 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, upland crops, rainfed wetland rice, rubber Area used : 30 I 16. ACCELERATED EROSION a. Occurrence : None ' b. Evidence : Not relevant 17. TERRAIN : Flat, slope < 31, 0-50 m 18. FLAN/ Dominant: Not elongated and random 40-60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 100 m Maximum : 350 m Range : 150 - 300 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium b

26. RELIABILITY (1° reliable, 2= probable, 3= tenable, 4° plausible) item | 10b | 12a | 14a | 14b | 19 1 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el |1.23b 1I 23c| 23d | 23er 1 24 1 25 | xate : 1 I 2 1 2 1 2 | 2 1 2 1 2 1 2 | 2 | 2 | 2 | 1 |1 1 11 1 1 | 1 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: ity/ / /87/MD/0617/63/ /052/ uda/ /87/JH/0617/63/ /090/ iqt/ / /87/MD/0617/63/ /053/

0617&0717 - 178 Fag* 2 LAND UNIT : Qd.2.2.2 Mapsheet : 0617 08/12/80

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms e. X of Land Unit : 8SZ 85* 15Z SLOPES dl. Steepness : 3 - 8* 3 - 16Z 0 - 8Z d2. Slope length : 101 - 200 m 101 - 200 m < 50 m d3. Slope curvature : Straight Straight Concave SOILS el. USDA Class : dystropepts hapludults tropaquepts . . e2. Z Facet : 60* 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults tropaquepts

b. Texture: topsoil: Moderately coarse Moderately coarse Coarse subsoil: Moderately fine Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep Very deep d. Drainage Well drained Moderately well ' Poorly drained NUTRIENTS : e. Exch. K: topsoil: Very low Very low Very low subsoil: Very low Very low Very low t. Total K2O: topsoil: Low Medium Medium subsoil: Very low Very high Very high g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very low Low h. Total P: topsoil: Very low Vary low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pB 7 topsoil: Low Low Very high subsoil: Very low Low Very high j. Reaction: topsoil: Exessively acid Exessively acid Exessively acid subsoil: Exessively acid Very strong acid Strong acid k. Al sat. topsoil: Very high High None, very low subsoil: Very high Medium Low 1. Al toxicity : Yes No No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 4.3 5.9 r. TEB (meq/100 g) : 0.5 0.6 0.6 s. Total anal, profiles: 1

f. LAB CHECK : Yes Yes Yes

27. ADDITIONAL NOTES :

\0617&0717 - 179 LAUD UNIT : Qd.2.3.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

Hu. 1.2.3 - Qd.2.3.2 - Hu.3.2.4 «ame summit level a. interfluves b. valley bottom

Fiat toundulating relisf

1. LAND UNIT : Qd.2.3.2 Toba acid tuff lowlands and footslopes, acid tuffs, infilled river valleys, flat (slopes <3Z), moderately dissected 2. MAP SHEET : 0717 3 AREA : 15.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-117 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology dacite, , c. Formation Qvt 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Localised .' - b. Evidence : Various 17. TERRAIN : Flat, slope < 3Z, 0-50 m'. 18. PLAN/ Dominant: Not elongated and random 40-60Z of.area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 100 m Maximum : 200 m Range : 125 - 175 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium block

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 14a | 14b |19 | 20 | 21b| 22b | 22c |22dl | 22d2 | 22el I 23b| 23c I !23dI 23er 1 24 |1 25.1 rate : 1 1 1 1-2 I 2 | .2 1 2 | 2 1 2 1 2 | • 2 1 2 | 1 1 1 1 2 1 1 1 1 1 1 2 1 . '

28. REPRESENTATIVE PROFILES: ith/ / /87/TB/0618/51/ /015/ ity/ /87/KR/0618/24/ /Q36/

O617&O717 - 180 Pag* 2 LAND UNIT : Qd.2.3.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Valley bottoms e. Z of Land Unit : 851 85Z 15Z SLOPES dl. Steepness : < 31 < 3Z < 3Z d2. Slope length : 101 - 200 m 101 - 200 m 50 - 100 m d3. Slope curvature : Straight Straight Concave SOILS el. USDA Class : humitropept dystropepts tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts dystropepts tropaquepts

b. Texture: topsoil: Medium Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep Very deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Very low Very low f. Total K2O: topsoil: Very high Very high subsoil: Very high Very high g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Medium subsoil: Low Low J. Reaction: topsoil:1 Exessively acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: High High subsoil: Low High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 4.0 3.2 r. TEB (meq/100 g) : 1.3 0.5

s. Total anal, profiles:

t. LAB CHECK

27. ADDITIONAL NOTES : The soil data of Humitropepts and Dystropepts are extrapolated from' sheet 0618

0617&0717 - 181 LAND UHU : Qd.2.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Qd.2.3.4- outcrops

Rocky land, hillocky relitf, bad land

1. LAND UNIT : Qd.2.3.4 Toba acid tuff lowlands and tootslopes, acid tuffs, infilled river valleys, flat (slopes <3Z), extremely dissected MAP SHEET : 0717 3 AREA : 16.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/88 Status : Final SATELLITE SCENES 128/58/08/08/85 AERIAL PHOTOGRAPHS 1:100.000 T2 /8323-177 RADAR STAR-1/250/88/0717 PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology dacite, , c. Formation Qvt 12. WATER a. Quality Fresh b. Source Rain, Perennial river FISHERIES River RIVERS a. Floodrisk water : None b. FLoodrisk sed.: None c. Inundation : None 15 VEGETATION/LAND USE : , bush, scrub, grazing land Area used : 0 i 16 ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17 TERRAIN : Flat, slope < 3Z, 0-50 m 18 FLAN/ Dominant : Not elongated and random > 60Z of area flat-topped PROFILE Included: 19 RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20 ALTITUDE Minimum : 100 m Maximum : 350 m Range : 125 - 300 m 21 DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24 VALLEY FLOOR Width : Moderate 25 FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a I 14a | 14b | 19 I 20 | 21b I 22b | 22c I 22dl | 22d2 | 22el | 23b | 23c 1 23d | 23er 1 24 1 25 |

1- 4 1 2 rate: 1 | 1 12 12, 1 2 | 2 1 3 | 2 1 2 | 2 | 2 | 1 I 1 3 !

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/51/ /050/ ity/ /87/KR/061B/24/ /036/

0617&0717 - 182 Page 2 LAND UNIT Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves Depression c. X of Land Unit : 90Z 90Z ÏOZ SLOPES dl. Steepness : < 3Z < 35! <: 3Z d2. Slope length : 101 - 200 m 101 - 200 m 50 - 100 m d3. Slope curvature : Straight Straight Concave SOILS el. USDA Class : dystropepts humitropepts tropaquepts e2. Z Facet : 60Z 40Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts tropaquepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep Very deep d. Drainage : Well drained Well drained Poorly drained NUTRIENTS : e. Exch. K: topsoil: Low Medium subsoil: Very low Medium f. Total K20: topsoil: Very high Very low subsoil: Very high Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Low subsoil: Very Low Very low h. Total P: topsoil: Very low Very low subsoil: Very low High OTHERS i. CEC topsoil: Medium Very low subsoil: Low Very high J. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: High Low subsoil: High Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 3.2 9.7 r. TEB (meq/100 g) : 0.5 18.9

8. Total anal, profiles:

I. LAB CHECK Yes No

27. ADDITIONAL NOTES : The soil data of Tropaquepts are extrapolated from Qd.2.3.2 and The data of Dystropepts are from 0618 sheet

O617&O717 - 183 LAKD UNIT : Va.1.2.3 Mapsheet : 0717 LREF-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

1. LAND UNIT : Va.1.2.3 Stratovolcanoes, intermediate tuffs, volcano upper slopes, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 45.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 US /8348-153 9. RADAR : STAR-1/250/88/0717-3 10. PARENT MATERIAL 11. ROCK OUTCROP : 2Z a. Weathering : Partial b. Lithology : andesitic tuffs, , c. Formation : Qvlu , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None ' 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary montane forest, horticultural crops Area used : 10 2 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence 17. TERRAIN : Mountanious >16Z, >300 m 18. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : Low 20. ALTITUDE Minimum : 1000 m Range : 1100 - 1700 m Maximum : 1862 m 21. DRAINAGE a. Pattern: Radial 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 23. FRAGMEN a. Valleys: None b. Interfluves : Small blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 j 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b I 23c I 23d | 23er | 24 | 25

rate : 2 1 I 1 I 1 I 2 2 | 2 | 1

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/13/ /131/ iny/ /88/JH/0617/64/ /101/

0617&0717 - 184 Page 2 LAND UNIT : Va.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100* 100Z SLOPES dl. Steepness : 25 - 75Z 25 - 75Z d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystrandepts humitropepts e2. Z Facet : 75Z 25Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Moderately deep Very deep d. Drainage ' : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low Low f. Total K2O: topsoil: Low Low subsoil: Low Very low g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Low Very low OTHERS : i. ÇEC pH 7 topsoil: Very high Medium subsoil: Very high Medium J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Strong acid Exessively acid k. Al sat. topsoil: High High subsoil: Medium High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 55 cm (j. Organic matter (Z) : . 7.8 5.4 r. TEB (meq/100 g) : 1.2 1.3 s. Total anal, profiles:

f. LAB CHECK : Yes

27. ADDITIONAL NOTES :

O617&O717 - 185 LAND UNIT : Vd.1.2.3 Mapsheat : 0717 LREP-SDBM, CSR-BOGOR Q«/12/90

MAP IMAGE : CROSS SECTION :

1. LAUD UNIT : Vd.1.2.3 Stratovolcanoes, acid tuffs, volcano upper slopes, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 40.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X .5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 • 14S /8323-49 , US /8323-47 9. RADAR STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 101 a. Weathering Partial b. Lithology liparite, dacite, c. Formation Qvb 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 1«. RIVERS a. FLoodrisk water None b. Floodrisk sed. : None c. Inundation None 15. VEGETATION/LAND USE moist primary montane forest, bush, scrub Area used 0 Z 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Various 17. TERRAIN Mountanious >16Z, >300 m 18. PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked * PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : Low 20. ALTITUDE Minimum : 1200 m Range : 1300 - 1750 m Maximum :1812 m 21. DRAINAGE a. Pattern: Radial 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2° probable, 3= tenable, 4° plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el I 23b I 23c | 23d | 23er | 24 | 25 rate :2|l|l|l|2|2| 1 I 1 I 1 I 2

28. REPRESENTATIVE PROFILES: ity/ / /89/CD/0717/41/ /088/ ith/ /89/CD/0717/41/ /099/

0617&0717. - 186 Page 2 LAND UNIT : Vd.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS. SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Upper slopes Upper slopes e. Z of Land Unit : 100X ÏOOX SLOPES dl. Steepness : 25 - 75Z 25 - 75X d2. Slope length : > .500 m > 500. m d3. Slope curvature : Straight Straight SOILS el. USDA Class : humitropepts dystropepts «2. X Facet : 601 40J

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts dystropepts

b. Texture: topsoil: Fine Moderately fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Moderately shallow Deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Medium subsoil: Very low Low f. Total K2O: topsoil: Low Medium subsoil: Low Very high g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Medium Very high -subsoil: Medium High J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Strong acid Very strong acid k. Al sat topsoil: Low Very high subsoil: Medium Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 26 cm 96 cm q. Organic matter (X) : 11.0 3.4 r. TEB (meq/100 g) : 1.8 1.3

- s. Total anal, profiles: l 1

f. LAB CHECK : Ye Yes

27. ADDITIONAL NOTES : The soil data are extrapolated from Vd.1.3.4

0617&0717 - 187 LAND UNIT : Va.1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/80

MAF IMAGE : CROSS SECTION :

Va. -V«. 1.3.3 I/a. 1.4.2 1.2.3 hiilocky to hilly-relief, boulder locally exposad

boulders

1. LAND UNIT : Va. 1.3.3 Stratovolcanoes, intermediate tuffs, volcano middle slopes, moderately steep to steep slopes (16-55Z), strongly dissected 2. HAP SHEET : 0717 3 AREA : S7.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I S. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 US /S323-49 9. RADAR STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 2Z a. Weathering Partial b. Lithology andesitic tuffs, , c. Formation Qvlu , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 1*. RIVERS a. Floodriak water None b. Floodrisk sed.: None c. Inundation None IS. VEGETATION/LAND USE secondary forest, bush, scrub, upland crops, unspecified estate Area used 20 Z ' 18. ACCELERATED EROSION a. Occurrence Common b. Evidence : Various 17. TERRAIN Hilly . >16I. 51-300 m 18. PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very high b. Variability : Low 20. ALTITUDE Minimum 600 m Range 650 - 1110 m Maximum : 1200 m 21. DRAINAGE a. Pattern Radial 24. VALLEY FLOOR Width Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys None b. Interfluves : Medium blocks 26. RELIABILITY (1° reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b I 23c I 23d | 23er | 24 | 25 rate :2|l|l|2|2|2| 2 | 2 | 1 I 1 I 1 I 1 I I 2 I 3

28. REPRESENTATIVE PROFILES: iny/ / /88/JH/0617/64/ /101/ ith/ /89/YM/0717/13/ /087/

0617&0717 - 188 ?•«• 2 LAND UNIT : Va.1,3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves e. X of Land Unit : 100Z 1001 SLOPES dl. Steepness : 16 - 55X 16, - 551 d2. Slope length 201 - 500 m 201 - 500 m d3. Slope curvature : Straight Straight SOILS •1. USDA Class : dystrandepts humitropepts •2. I Facet : 60Z 401

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Deep Very deep d. Drainage Well drained Well drained HUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low Low f. Total K2O: topsoil: Low Low subsoil: Low Very low g. Avail. F: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total F: topsoil: Low Very low subsoil: Low Very low OTHERS : i. CEC pH 7 topsoil: Very high Medium subsoil: Very high Medium j. Reaction: topsoil: Very strong acid Exessively acid subsoil: Strong acid Exessively acid k. Al sat. topsoil: High High subsoil: Medium- High 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 7.8 5.4 r. TEB (meq/100 g) : 1.2 1.3 s. Total anal, profiles:

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystrandepts are'extrapolated from Va.1.2.3

0617&0717 - 189 LAND UNIT : Vd.1.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

MAP IMAGE : CROSS SECTION :

1. LAND UNIT : Vd.1.3.4 Stratovolcanoes, acid tuffs, volcano middle slopes, moderately steep to steep slopes (16-55%), extremely dissected 2. MAP SHEET : 0717 3 AREA : 97.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /8323-49 9. RADAR STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 2Z a. Weathering Partial b. Lithology liparite, dacite, c. Formation Qvb 12. HATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, rubber Area used 10 * 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Gulleys 17. TERRAIN Hillocky >16Z, 0-50 m 18. PLAN/ Dominant Not elongated and random > 601 of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude High b. Variability : Medium 20. ALTITUDE Minimum 800 m Range 850 - 1100 m Maximum : 1200 m 21. DRAINAGE a. Pattern Radial 24. VALLZY FLOOR Width Very narrow b. Density : High 25. FRAGMEN a. Valleys None b. Interfluvés : Small blocks 26. RELIABILITY (1- reliable, 2- probable, 3* tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 || 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el || 23b 1 23c | 23d |I 23er 1 24 1| 25 | rate : 2 | 1 1 1 1 1 12 |1 2 | 2 1 2 | 2 11 2 | 2 | 1 | 1 1 1 1 1 1 2 | 2 1

28. REPRESENTATIVE PROFILES: ity/ / /89/CD/0717/41/ /088/ ith/ /89/CD/0717/42/ /099/

0617&0717 - 190 Page 2 LAND UNIT : Vd.1.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. X of Land Unit : 1001 100% SLOPES dl. Steepness : 16 - 551 16 - 55Z d2. Slope length : > 500 m > 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : humitropept dystropepts e2. X Facet : 70Z 30Z

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts dystropepts

b. Texture: topsoil: Moderately fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Deep Moderately shallow d. Drainage : Well drained Well drained NUTRIENTS :-- e. Exch. K: topsoil: Medium Low subsoil: Low Very low t. Total K20: topsoil: Medium Low subsoil: Very high Low g. Avail. F: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Very high Medium subsoil: High Medium j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Very strong acid Strong acid k. Al sat. topsoil: Very high Low subsoil: Very high Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free. Salt free o. Other toxicity : p. Root obstr. layer : 96 cm 26 cm q. Organic matter (Z) : 11.0 13.4 r. TEB (meq/100 g) : 1.3 1.8

8. Total anal, profiles:

f. LAB CHECK : Yes

27. ADDITIONAL NOTES

O617&O717 - 191 LAND UNIT : Vd.1.4.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGCR 08/12/90

HAP IMAGE : CROSS SECTION :

1. LAND UNIT : Vd.1.4.1 Stratovolcanoes, acid tuffs, volcano lower slopes, flat to sloping (slopes <16Z), slightly dissected 2. MAP SHEET : 0717 3 AREA : 23.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z S. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /8323-41 9. RADAR STAR-1/250/88/0717-3 10. PARENT MATERIAL 11. ROCK OUTCROP : 5Z a. Weathering Partial b. Lithology liparite, dacite, c. Formation Qvb 12. HATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed. : None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, alang-alang, wetland rice, rubber Area used SO Z 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence • : Various 17. TERRAIN Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant Not elongated and parallel > 60Z of area flat-topped PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Low b. Variability : Low 20. ALTITUDE Minimum 350 m Maximum : 400 m Range 350 - 375 m 21. DRAINAGE a. Pattern Parallel b. Density : Low 24. VALLEY FLOOR Width Narrow 25. FRAGMEN a. Valleys Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2- probable, 3* tenable, 4« plausible) item | 10b | 12a | 14a | 14b | 19 I 20 | 21bI 22b | 22c [| 22dl | 22d2 | 22el [I 23b || 23c | 23d [I 23er 1 24 1| 25 |

rate : 2 | 1 1 1 1 2 | 2 1 2 | 2 e g C M | 2 | 2 | 1 |1 1. 11 1 1 1 1I 1 1 2 1| 2 |

28. REPRESENTATIVE PROFILES: ity/ / /89/KR/0717/14/ /090/ ity/ /89/KR/0717/14/ /063/

O617&O717 - 192 Pago 2 LASD UNIT : Vd.1.4.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves e. X of Land Unit : 100* 100Z Z Z SLOPES dl. Steepness : 3 - 8Z 3 - 8Z 42. Slope length : > 500 m > 500 m d3. Slop« curvature : Straight Straight SOILS el. USDA Class : dystropepts humitropepts e2. Z Facet : 601 40Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Fine Fine ' subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately shallow d. Drainage : Well drained Well drained NUTRIENTS : : • e. Exch. K: topsoil: Low subsoil: Low f. Total K20: topsoil: Very high subsoil: Very high g. Avail. P: method: Bray I — — topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Medium subsoil: Medium j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Strong acid Strong acid k. Al sat. topsoil: High -- . — . „ subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 4.5 r. TEB (meq/100 g) : 0.2

s. Total anal, profiles: 2 0 0 0

f. LAB CHECK : Yes No

27. ADDITIONAL NOTES :

Ö617&0717 - 193 LAND UNIT : Va.1.4.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Va. 1.3.3 -Va.1.4.2 undulating relief, boulders locally exposed

1. LAND UNIT : Va.1.4.2 Stratovolcanoes, intermediate tuffs, volcano lower slopes, flat to sloping (slopes <16Z), moderately dissected 2. HAP SHEET : 0717 3 AREA : 157.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I S. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 10S /8348-146, IIS /8348-153 9. RADAR STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 21 a. Weathering Partial b. Lithology andesitic tuffs, , c. Formation Qvlu , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE , bush, scrub, upland crops, irrigated wetland rice, unspecified estate Area used 60 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating 3-8Z, 0-50 m 18. PLAN/ Dominant Not elongated and random > 60X of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Medium 20. ALTITUDE Minimum : 400 m Maximum : 600 m Range : 450 - 550 m 21. DRAINAGE a. Pattern: Radial b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2° probable, 3= tenable, 4= plausible) item | 10b. | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el I 23b I 23c I 23d | 23er 24 | 25 rate : 1

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/13/ /133/

O617&O717 - 194 Page 2 LAND UNIT : Va. 1.4.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb ~ ; b. Description : Interfluves Interfluves c. lof Land Unit : 1001 100Z OX 0Z SLOPES dl. Steepness : 3 - 8Z 3 - 16Z — d2. Slope length : 201 - 500 m ' 201 - 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystropepts humitropepts e2. Z Facet : 60Z 40Z 0Z .01

23. SOIL CHARACTERISTICS a. USOA Great Group : dystropepts humitropepts

b. Texture: topsoil: Fine ' Medium subsoil: Fine Medium C. Depth: peatsoil: mineralsoil: Very deep Moderately shallow d. Drainage : Well drained Imperfectly drained RUTSIENTS : ; ». Exch. K: topsoil: — Very high subsoil: —• • High t. Total K20: topsoil: — . Very high subsoil: — High — -- (. Avail. P: method: — Bray I topsoil: — Low subsoil: — Very low -- h. Total P: topsoil: — Medium subsoil: — Medium OTHERS : i. CEC pH 7 topsoil: — Medium subsoil: — Low j. Reaction: topsoil: — Very strong acid subsoil: — Strong acid k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Hot relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : — - 40 cm q. Organic matter (X) : -- 5.2 r. TEB (meq/100 g) : — 23.1

8. Total anal, profiles: 0 1 o 0

t. LAB CHECK : No Yes , ___. 27. ADDITIONAL NOTES :

0617&0717 - 195 LAUD imiT : Vd.1.4.2 Hapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

HAF IMAGE : CROSS SECTION :

Vd.1.3.4 -. Vd. 1.4.2 •> Vd.1.4.3 16-25%^ undulating rstief a. interfluves b. vaJley bottom

1. LAND UNIT : Vd.1.4.2 Stratovolcanoes, acid tuffs, volcano lower slopes, £lat to sloping (s.lopes <16Z), moderately dissected MAF SHEET : 0717 3 AREA : 17.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final SATELLITE SCENES 128/59/08/08/85, 128/58/08/08/85 AERIAL PHOTOGRAPHS 1:100.000 US /8323-41 , US /8323-43 , 14S /B323-47 RADAR STAR-1/250/88/0717-3 10 PARENT MATERIAL 11. ROCK OUTCROP : 51 a. Weathering Partial b. Lithology liparite, dacite, c. Formation Qvb 12. WATER Quality Fresh b. Source Rain, Perennial river FISHERIES : None RIVERS a. Floodrisk water None b. Floodrisk sed. : None c. Inundation : None 15 VEGETATION/LAND USE : secondary forest, bush, scrub, alang-alang, upland crops, irrigated wetland rice, deepwater rice Area used : 60 I ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17 TERRAIN Undulating to rolling (3-16X) 18 PLAN/ Dominant: Not elongated and parallel > 601 of area flat-topped PROFILE Included: 19 RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 600 m Range : 650 - 800 m Maximum :1100 m 21. DRAINAGE a. Pattern: Parallel 24. VALLEY FLOOR Width : Narrow b. Density : Moderate 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks 26. RELIABILITY (1- reliable, 2- probable, 3- tenable, 4" plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b I 22b | 22c I 22dl | 22d2 I 22el I 23b | 23c I 23d I 23er | 24 | 25 | rate :2|l|l|z|2|2| 2| I.. I I I I I I I I

28. REPRESENTATIVE PROFILES: ith/ / /89/KR/0717/U/ /090/

0617&0717 - 196 Fag* 2 LAHD UHU : Vd.1.4.2 MaplhMt : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves o. X of Land Unit : 100Z 100Z 0Z SLOPES dl. Steepness- : 3 - 16Z 3 - 16Z d2. Slope length : > 500 m > 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class : dystropepts humitropepts e2. Z Facet : 60Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Fine • Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage Well drained Well drained HUTMENTS : e. Eich. K: topsoil: Medium subsoil: Very low £. Total K2O: topsoil: High subsoil: Medium g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Low subsoil: Low J. Reaction: topsoil: Exessively acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: Medium subsoil: Low 1. Al toxicity : m. Aeid sulph. pot. : Not relevant Not relevant n. Salinity (ee) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter CZ) : 7.3 r. TEB (meq/100 g) : 1.6 s. Total anal, profiles: 0 1

f. LAB CHECK No Yes

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated from Vd.1.4.3

0617&0717 - 197 LAND UNIT : Va.1.4.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

, Mg.2.2.2 Va. 1.4.3- undu lating to rolling relief

1. LAND UNIT : Va.1.4.3 Stratovolcanoes, intermediate tuffs, volcano lower slopes, flat to sloping (slopes <16Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 46.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 US /8348-153 9. RADAR : STAR-1/250/88/0717-3 10. PARENT MATERIAL fl. ROCK OUTCROP : 5Z a. Weathering : Partial b. Lithology : andesitic tuffs, , c. Formation : Qvlu , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 30 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating 3-8*, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 400 m Range : 250 - 350 m 21. DRAINAGE a. Pattern: Radial b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys; Small blocks b. Interfluves : Large blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22el | 23b I 23c | 23d | 23er I -24 | 25

rate : 1 2 f 2 2| 2 | 2 1 '| 1 I 2

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/13/ /133/

0617M717 - 198 Page 2 LAND UNIT : Va.1.4.3 Mapsheet : 0717 08/12/90

22. FACETS. SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. Z of Land Unit : 100X 100Z Z Z SLOPES dl. Steepness : 3 - 8Z 3 - 16Z d2. Slope Length : 201 - 500 m 101 - 200 m — — d3. Slope curvature : Undulating Undulating SOILS el. USDA Class : dystropepts humitropepts •2. Z Facet : 60Z 40Z Z Z

23. SOIL CHARACTERISTICS a. DSDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Moderately fine Medium subsoil: Fine Medium e. Depth: peatsoil: mineralsoil: Very deep Moderately .shallow d. Drainage : Well drained Imperfectly drained HUTMENTS : e. Exch. K: topsoil: — Very high subsoil: — High f. Total K2O: topsoil: — Very high subsoil: — High g. Avail. P: method: — Bray I topsoil: — Low subsoil: — Very low h. Total P: topsoil: — Medium subsoil: — Medium OTHERS : i. CEC pH 7 topsoil: — . Medium subsoil: — Low j. Reaction: topsoil: Strong acid Very strong acid subsoil: Very strong acid Strong acid k. Al sat. topsoil:. — — subsoil: 1. Al toxicity : n. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : — 40 cm q. Organic matter

f. LAB CHECK : No Yes

27. ADDITIONAL NOTES : The soil data of Humiitropepts are extrapolated from Va.1.4.2

O617&O717 - 199 LAND UNIT : Vd.1.4.3 Mapsheet : 0717 LREP-SDBM, CSR-BOG0R 08/12/90

MAF IMAGE : CROSS SECTION

Vd.1.3.4 Vd.1.4.3 rolling to hillocky relief

1. LAND UNIT : Vd.1.4.3 Stratovolcanoas, acid tuffs, volcano lower slopes, flat to sloping (slopes <16Z), strongly dissected 2. MAP SHEET : 0717 3, AREA : 239.4 km2 4 .• OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 14S /8323-49 - 9. RADAR : STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 51 a. Weathering : Partial b. Lithology ; liparite, dacite, c. Formation : Qvb 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None lV RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : pinus forests, bush, scrub, alang-alang, mixed gardens of fruit trees, wetland rice, rubber Area used : 80 I 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Undulating to rolling (3-16Z) 18. PLAN/ Dominant: Not elongated and parallel 40-60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum : 600 m Range : 750 - 850 m Maximum : 1000 m 21. DRAINAGE a. Pattern: Parallel 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Large blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a| 14a | 14b |19 I 20 | 21bI 22b | 22c |22dl | 22d2 | 22a 1 I 23b| 23c | 23d || 23er 1 24 | 25 |

rate :• 2 | | 1 | 2 | t o 1 2 1 2 | 2 1 2 | 2 | 2 1 2 | 1 11 1 1 1 1 1 1| 1 2 1

28. REPRESENTATIVE PROFILES: ith/ / /89/CD/0717/41/ /090/ ity/ /89/LH/0717/14/ /105/

O617&O717 - 200 Page 2 LAND UNIT : Vd.1.4.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. X of Land Unit : 100Z 100Z SLOPES dl. Steepness : 3 - 161 3 - 16Z d2. Slope length : > 500 m > 500 m d3. Slope curvature : Straight Straight ' SOILS el. USDA Class : dystropepts humitropepts e2. I Facet : 60 T

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Fine Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained HUTRIENTS : e. Ezch. K: topsoil: Very low Medium subsoil: Very low Very low I. Total K20: topsoil: Low High subsoil: Very low Medium g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Very low subsoil: Low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: High Medium subsoil: High Low 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Hot relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : cj. Organic matter (J) : 6.2 7.3 r. TEB (meq/100 g)' 2.5 1.6

s. Total anal, profiles:

f. LAB CHECK : Yes

27. ADDITIONAL NOTES

O617&O717 - 201 LATO UNIT : Vd.1.4.* Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

- Vd.1 A4 - Vd.1.4.3 hillocky to hilly friiif

1. LAND UNIT : Vd.1.4.4 Stratovolcanoes, acid tuffs, volcano lower slopes, flat to sloping (slopes <16Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 126.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS ; Updated by : SS Edit date: 06/11/89 Status : Final. 7. SATELLITE SCENES : 128/59/08/08/85, 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 14S /8323-47 , T2 /8323-171 9. RADAR : STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 51 a. Weathering : Partial b. Lithology : liparite, dacite, c. Formation : Qvb 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. FLoodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15: VEGETATION/LAND USE : , bush, scrub, alang-alang, upland crops Area used : 50 X 16. ACCELERATED EROSION a. Occurrence : Coimon b. Evidence : Gulleys 17. TERRAIN : Undulating to rolling (3-161) 18. PLAN/ Dominant: Not elongated and parallel 40-60% of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Medium 20. ALTITUDE Minimum : 300 m Maximum : 400 m Range : 300 - 400 m 21. DRAINAGE .a. Pattern: Parallel b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: Small blocks b. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, probable, 3= tenable, 4= piausible) iten) | 10b | 12a 114a | 14b | < o t 1 20 1 21b 1 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d 1 23er 1 24 1 25 1 rate, : 2 | 1 1 1 | 2 | 2 1 2 1 2 1 2 | 2 1 2 1 2 | 1 1 1 1 1 1 1 1 1 1 2 1 2 1

28. REPRESENTATIVE PROFILES: ith/ / /89/LH/0717/42/ /095/ ity/ /89/CD/0717/41/ /080/

O617&O717 - 202 Page 2 LAND UNIT : Vd. 1.4.4 Mapsheet : 0717 •08/12/80

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. I of Land Unit : 1001 100Z SLOPES dl. Steepness : 3 - 16X 3 - 161 d2. Slope length : > 500 m > 300 o d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystropepts humitropepti e2. I Facet : 651 35*

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepta

b. Texture: topsoil: Fine Medium subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Deep Very deep d. Drainage : Imperfectly drained Well drained HUTMENTS : e. Exch. K: topsoil: Low Low subsoil: Very high Very low t. Total K20: topsoil: Very high Very high subsoil: Very low Very high g. Avail. P: .method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total F: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Very high subsoil: Low High j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Strong acid k. Al sat. topsoil: High Hone, very low subsoil: High None, very low 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 5.2 8.8 r. TEB (meq/100 g) : 1.4 3.7

Total anal, profiles:

LAB CHECK Yes

27. ADDITIONAL NOTES

0617&0717 - 203 LAND UNIT : Va.1.6.2 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

-V». 1.6.2. young lahar flow, undulating relief, boulder locally gxposed

1. LAND UNIT : Va.1.6.2 Stratovolcanoes, intermediate tuffs, (young) lahars, moderately dissected 2. MAP SHEET : 0617 3. AREA : 19.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 14S /832 -15 9. RADAR : STAR-1/250/88/0717-6 10. PARENT MATERIAL 11. ROCK OUTCROP : 5Z a. Weathering : Partial b. Lithology : andesitic tuffs, others, c. Formation : Qvlu , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 10 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Hillocky >16I, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High ' b. Variability : Medium 20'. ALTITUDE Minimum : 1000 m Range : 1000 - 1100 m Maximum : 1100 m 21. DRAINAGE a. Pattern: Radial 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c . | 23d | 23er 1.24 | 25 | rate :l|l|l|2|2|2| 2 | 3 | 2 | 2 I 1 | 1 | 1 | | 2 | 3 |

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/13/ /133/

O617&O717 - 204 Pag* 2 LAND UNIT : Va.1.6.2 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves c. X of Land Unit : 1001 100Z X I SLOPES dl. Steepness : 16 - 251 16 - 55Z d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Complex Complex SOILS el. USDA Class • : dystrandepts humitropepts 02. X Facet : 601 402 X X

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Medium subsoil: Fine Medium c. Depth: peatsoil: mineralsoil: Extremely deep Moderately shallow d. Drainage : Well drained Imperfectly drained NUTRIENTS : ; e. Exeh. K: topsoil: ~ . Very high subsoil: — High f. Total K20: topsoil: — Very high subsoil: — High g. Avail. P: . method: — Bray I topsoil: Low subsoil: Very low h. Total P: topsoil: — ' Medium subsoil: — * Medium OTHERS. : i. CEC pH 7 topsoil: — Medium subsoil: -- Low J. Reaction: topsoil: — Very strong acid subsoil: — Strong acid -- k. Al sat. topsoil: subsoil: 1. Al toxicity . : — m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec> : Salt free Salt free — ' — o. Other toxicity : p. Root obstr. layer : — 40 cm q. Organic matter (*) : — 5.2 r. TEB (meq/100 g) : -- 23.1

s. Total anal, profiles: 0 10 0

f. LAB CHECK : No . Yes — —

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated from Va. 1.4.2

O617&O717 - 205 LAUD UNIT : Va.1.6.3 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Va. 1.6.3 Va. 1.6.2 young lahar flow, rolling to hillocky relief, bouMen locally exposed —*=<16% ^gently dopir*...... ------

1. LAND UNIT : Va.1.6.3 Stratovolcanoes, intermediate tuffs, (young) lahars, strongly dissected 2. HAF SHEET : 0617 3 AREA : 10.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z S. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /832 -15 S. RADAR STAR-1/250/88/0617-6 10. PARENT MATERIAL 11. ROCK OUTCROP : 5X a. Weathering : Partial b. Lithology andesitic tuffs, others, c. Formation Qvlu , 12. HATER a. Quality Fresh b. Source : Rain, Perennial river 13. 'FISHERIES None 14. RIVERS a. Floodrislc water None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, mixed gardens of fruit trees Area used . : 20 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Hillocky >16I, 0-50 m 18. FLAN/ Dominant: Not elongated and parallel > 60Z of area flat-topped PROFILE Included; 19. RELIEF AMPLITUDE a. Amplitude: b. Variability : 20. ALTITUDE Minimum : 1100 m ' Range 1100 - 1200 m Maximum : 1200 m 21. DRAINAGE a. Pattern: Parallel 24 . VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FHACMEN a. Valleys: None b. Interfluves : Medium blocks '26. RELIABILITY (1= reliable, 2= probable, 3» tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22el I 23b | 23c | 23d I 23er 24 I 25

rate :l|l|l|l|2|2 3 I 1 I 1 I 1 I 2 I 3

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0717/13/ /133/

0617&0717 - 206 Page 2 LAND UNIT : Va. 1.6.3 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la 1b b. Description . : Interfluves Interfluves c. Z of Land Unit : 100Z 1001 X Z SLOPES dl. Steepness : 16 - 55Z 16 - 55Z d2. Slope length : > 500 m > 500 m d3. Slope curvature : Complex Complex SOILS •1. USDA Class : dystrandepts humitropepts e2. Z Facet : 60Z 40Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystrandepts humitropepts

b. Texture: topsoil: Fine Medium subsoil: Fine Medium e. Depth: peatsoil: mineralsoil: Extremely deep Moderately shallow d. Drainage : Well drained Imperfectly drained NUTRIENTS : e. Exch. K: topsoil: — Very high subsoil: — High t. Total K20: topsoil: — Very high subsoil: — High g. Avail. P: method: -- Bray I topsoil: Low subsoil: Very low h. Total P: topsoil: ~ Medium subsoil: — Medium

OTHERS : : i. CEC pB 7 topsoil: — Medium subsoil: — Low j. Reaction: topsoil: — Very strong acid subsoil: — Strong acid k. Al sat. topsoil: • subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : — 40 cm q. Organic matter (Z) : — 5.2 r. TEB (meq/100 g) : — 23.1

*. Total anal, profiles: 0 10 0

t. LAB CHECK : No Yes

27. ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated from Va. 1.4.2

0617&0717 - 207 LAUD UNIT : Vd.1.7.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

dHu.1.3.2 - Vd.1.7.4- rocky land, irregular landscape outcrops

1. LAND UNIT : Vd.1.7.4 Stratovolcanoes, acid tuffs, volcano lower slopes, outcrops and erosion remnants, extremely dissected 2. MAP SHEET : 0717 3 AREA : 41.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /8323-42 9. RADAR STAR-1/250/88/0717-3 10. PARENT MATERIAL 11. ROCK OUTCROP : 50* a. Weathering : Slight b. Lithology : liparite, dacite, c. Formation Qvb • , 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, rubber, reafforestation Area used : 15 Ï 16. ACCELERATED EROSION a. Occurrence : Extensive b. Evidence : Various 17. TERRAIN : Undulating to rolling (3-16Z) 18. PLAN/ Dominant: Not elongated and random > 60X of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Low 20. ALTITUDE Minimum : 400 m Maximum : 800 m Range : 550 - 700 m 21. DRAINAGE a. Pattern: Complex b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Mediu

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4s» plausible) item | 10b | 12a 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er I 24 1 25 1 rate : 2 | 1 1 1 | 2 | 2 I 2 | 2 1 2 | 2 | 2 1 2 | 2 1 2 1 1 1 1 1 1 1 111

28. REPRESENTATIVE PROFILES: not available

0617&0717 - 208 Page 2 LAND UNIT : Vd.1.7.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : la lb b. Description : Interfluves Interfluves ' . -_ c. X of Land unit : 100X 100* X X SLOPES dl. Steepness : 3 - 16X 3 - 16X d2. Slope length : 101 - 200 m 101 - 200 o d3. Slope curvature : Undulating Undulating SOILS el. USDA Class : troporthents dystropepts •2. X Facet : 90* 10X * X

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents dystropepts

b. Texture: topsoil: Coarse Coarse subsoil: — Fine c.-Depth: peatsoil: mineralsoil: Shallow Moderately deep d. Drainage : Somewhat exessively Somewhat exessively NUTRIENTS' : ' e. Exch. K: topsoil: — - — • subsoil: f. Total K20: topsoil: ~ — — subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTUKKS : i. CEC pH 7 topsoil: subsoil: i. Reaction: topsoil: Slightly acid Slightly acid subsoil: Moderately acid Slightly acid k. Al sat. topsoil: subsoil: 1. Al toxicity : — . — m. Acid aulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 22 cm 62 cm q. Organic matter (X) : r. TEB (meg/100 g) : —

*. Total anal, profiles: 0 0 0 0

t. LAB CHECK : No . No

27. ADDITIONAL NOTES :

0617&0717 - 209 LARD UNIT : Kc.3.4 Mapsheet : 0717 LREF-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

Vd.1.7.4 - Kc.3.4 - Kc.5.3 Rocky land, irregular landscape complex soil, varies in depth

<300m

1. LAND UNIT : Kc.3.4 Karst, hard calcareous rocks, hillocks and hills, moderately steep to steep slopes (16-551), extremely dissected 2. MAP SHEET : 0717 3 AREA : 58.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 12S /8348-20X 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 20Z a. Weathering : Partial b. Lithology limestone/marble, , c. Formation Pukul., 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 1». RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE :moist primary submontane forest, alang-alang, coffee Area used : 15 I 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Gulleys 17. TERRAIN : Hillocky >16I, 0-50 m 18. PLAN/ Dominant: Not elongated and random > 60Z of ar a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 400 m Maximum : 800 m Range : 500 - 750 m 21. DRAINAGE a. Pattern: Karstic b. Density : High 24. VALLEY FLOOR Width : Very narrow 23. FRAGMÈN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1- reliable, 2- probable, 3- tenable, 4° plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el I 23b I 23c | 23d | 23er | 24 | 25

rate :l|l|l|l|2|2 2 I 2 I

28. REPRESENTATIVE PROFILES:. ite/ / /89/KR/0717/21/ /103/ adk/ /89/LH/0716/22/ /21"

0617&0717 - 210 Page 2 LAND UNIT : Kc.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Loner slopes c. Z of Land Unit : 851 151 Z Z SLOPES dl. Steepness : 16 - 55Z 16 - 551 ~ ' — d2. Slope length : 101 - 200 m 50 - 100 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : eutropepts kandiudalfs eZ. X Facet : 100Z 100Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : eutropepts kandiudalfs

b. Texture: topsoil: Fine Fine subsoil: Fine Moderately fine c. Depth: peatsoil: mineralsoil: Moderately deep Very deep d. Drainage : Well drained Well drained — NUTRIENTS : e. Exch. K: topsoil: Low . Medium subsoil: Very low Low f. Total K2O: topsoil: Very high Low • — subsoil: Very high Very low g. Avail. P: method: Olsen Bray I topsoil: Low Very low subsoil: Very low Very low h. Total P: topsoil: Medium Low subsoil: High Very low OTHERS : : i. CEC pH 7 topsoil: Low Medium subsoil: Medium Low j. Reaction: topsoil: Slightly acid Moderately acid subsoil: Neutral Slightly acid k. Al sat. topsoil: -- — . • — ' ' — subsoil: 1. Al toxicity : — ' — m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 78 cm ' 140 cm q. Organic matter (Z):2.5 6.5 r. TEB (meq/100 g) : 9.5 18.5 s. Total anal, profiles: 110 0

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The sol data of Kandiudalfs are extrapolated from 0716 sheet, 'Land Unit Kc.3.3

0617&0717 - 211 LAND UNIT : Kc.5.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

<3OOm

Rocky land, irregular landscape, complex soil, varies in depth

1. LAND UNIT : Kc.5.3 Karst, hard calcareous rocks, mountains, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 130.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 12S /8348-201 9. RADAR : STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 30Z a. Weathering : Partial b. Lithology limestone/marble, , c. Formation : Pukul , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary submontane forest, coffee Area used : 10 X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of ar a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : Medium 20. ALTITUDE Minimum : 800 m Range : 900 - 1100 m Maximum : 1260 m 21. DRAINAGE a. Pattern: Karstic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a I 14b I 19 | 20 -| 21b I 22b I 22c I 22dl I 22d2 I 22el | 23b | 23c | 23d I 23e I 24 I 25 rate :l|l|l|l|2|2| 2 2 | 2 | 2 | 1 | 1 | 1 I 2 | 2

28. REPRESENTATIVE PROFILES: ite/ / /89/SS/0717/21/ /115/ adk/ /89/CD/0716/53/ /158/

0617&0717 - 212 Fsge 2 LAND UNIT : Kc.5.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier ' : 1 b. Description : Middle slopes Crest and upper slopes Lower slopes e. I of Land Unit : 60Z 25Z 15* SLOPES dl. Steepness : 25 -.75* 25 - 751 25 - 55Z d2. Slope length • : 201 - 500 m 50 - 100 m 50 - 100 m d3. Slope curvature : Straight Convex Straight SOILS el. USDA Class : eutropepts troporthents kandiudalfs e2. X Facet : 100Z 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : eutropapts troporthents kandiudalfs

b. Texture: topsoil: Medium .. Moderately fine subsoil: Medium Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Shallow Very deep d. Drainage : Well drained Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low ' Low t. Total K20: topsoil: Low Medium subsoil: Low Medium g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Low subsoil: Low Low i. CEC pH 7 topsoil: Very high Low subsoil: High Very low j. Reaction: topsoil: Moderately acid Strong acid subsoil: Neutral Strong acid k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : — p. Root obstr. layer : 20 cm 15 cm q. Organic matter (Z) : 1.0 4.0 r. TEB (meq/100 g) : 19.8 5.6 s. Total anal, profiles:

t: LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Kandiudalfs are extrapolated from 0716 sheet. Land Unit Kc.5.4

0617&0717 - 213 LAND UNIT : Hq.1.1.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION

Hq.1.2.1 -Hq.1.1.1- oil palm uncohsolidated Sedimentary rocks

=300 m

1. LAND UNIT : Hq.1.1.1 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, gentle slopes and foot slopes (slopes <16Z), slightly dissected 2. MAP SHEET : 0717 3 AREA : 13.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 05/09/90 Status : Final 7. SATELLITE SCENES 128/58/08/08/-S5 8. AERIAL PHOTOGRAPHS 1:100.000 23 /8218-215 9. RADAR STAR-1/250/88/0717t5 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology sandstone, , c. Formation Tmsk , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND, USE , bush, scrub, rubber, coconut Area used 30 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence 17. TERRAIN : Undulating 3-8X, 0-50 m 18. PLAN/ Dominant: Not elongated and random 40-60Z of area flat-topped . PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude: Low b. Variability : Low 20. ALTITUDE Minimum 50 m Maximum : 125 m Range 50 - 100 m 21. DRAINAGE a. Pattern Dendritic b. Density : Low 2«. VALLEY FLOOR Width ": Moderate 25. FRAGMEN ' a. Valleys: Medium blocks b'. Interfluves : Medium blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b | 22b I 22c | 22dl I 22d2 | 22el | 23b I 23c I 23d I 23er | 24 | 25 rate :l|l|l|l|2|2| 2 I 2 "I 2 | 2 | 2 | 2

28. REPRESENTATIVE PROFILES: est/ / /88/JH/0717/54/ /147/ est/ /87/KR/0717/63/ /083/ ity/ / /88/YM/0717/51/ /043/

O617&O717 - 214 Page 2 LAHD UNIT : Hq. 1.1.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and middle slopes Lower slopes c. X of Land Unit 80Z 20Z SLOPES dl. Steepness 3 - 8Z 8 - 161 d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Convex Concave SOILS el. USDA Class tropopsamments dystropepts e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamments dystropepts

b. Texture : topso i 1 : Coarse Coarse subsoil: Coarse Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Very low Low t. Total K2O: topsoil: Low Very low subsoil: High Very low g. Avail. F: method : Bray I Bray I topsoil: Medium Very high subsoil: Low Low h. Total F: topsoil: Very low Medium subsoil: Very low Low OTHERS : i. CEC pH 7 topsoil: Medium Very low subsoil: Low Very low J. Reaction: topsoil: Exessively acid Exessively acid subsoil: . Extremely acid Exessively acid k. Al sat. topsoil: Low High subsoil: Medium High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 24.2 2.1 r. TEB (meq/100 g) : 5.0 0.9 s. Total anal, profiles: 2

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated from LU Hq. 1.2.2

O617&O717 - 215 LAND UNIT : Hq.1.2.1 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Hu.3.3.4 -Hq.tJ.1- unconsotidated Sedimentary rocks

oil palm 16-25%

<300m

1. LAUD UNIT : Hq.1.2.1 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, moderately steep slopes (16-25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 45.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 23 /8218-215 9. RADAR STAR-l/250/88/07l71-5"" 10. PARENT MATERIAL . 11..ROCK OUTCROP : 0Z a. Weathering ; Partial . b. Lithology : sandstone, , c. Formation : Tmsk , 12. WATER a. Quality ; Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE .: , bush, scrub, rubber Area used : 15 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various '17. TERRAIN : Hillocky >16Z, 0-50 m lé. PLAN/ Dominant: Not elongated and randojn y>0-60Z of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a.' Amplitude: Medium b. Variability : Low 20. ALTITUDE Minimum : 60 m Maximum : 137 m Range , : 75 - 125 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Low 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small block

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4° plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25j rate :l|l|l|l|2|2 2 | I 2

28. REPRESENTATIVE PROFILES: ity/ / /88/YM/0717/51/ /043/ est/ / ' /87/KR/0717/54/ /072/ est/ / /88/KR/0717/63/ /076/

0617&0717 - 216 Fag* 2 LARD UNIT : Hq. 1.2.1 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and middle slopes Lower slopes e. I of Land Unit 80* 20* SLOPES dl. Steepness 16 - 25* 16 - 25* d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Convex Straight SOILS el. USDA Class tropopsamnents dystropepts e2. * Facet 100* 100*

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamments dystropepts

b. Texture: topsoil: Coarse Coarse subsoil: Coarse Coarse c. Depth: peatsoil: — -- mineralsoil: Extremely deep Very deep d. Drainage : Somewhat exessively Well drained NUTRIENTS : e. Exch. K: topsoil: Very low Low subsoil: Very low Low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Very high subsoil: Very low Low h. Total P: topsoil: Very low Medium subsoil: Very low Low OTHERS : i. CEC pH 7 topsoil: Very low Very low subsoil: Very low Very low • j. Reaction: topsoil: Moderately acid Exessively acid subsoil: Moderately acid Exessively acid k. Al sat. topsoil: Low High subsoil: Low High 1. Al toxicity : No m. Acid sulph. pot. : Not relevant Hot relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (*) : 0.4 2.1

r. TEB (meq/100 g) : 0.3 0.9

s. Total anal, profiles:

I. LAB CHECK

27. ADDITIONAL HOTES : The soil data of Dystropepts are extrapolated from LU Hq. 1.2.2

O617&O717 - 217 LAND UNIT : Hq.1.2.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Mu.2.2.4 Hq.1.2.2 unconiolidated »dimentary rocki Kar" I

16-25%

<300m

1. LAND UNIT : Hq.1.2.2 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, moderately steep slopes (16-25Z), moderately dissected 2. MAP SHEET : 0717 3 AREA : 52.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-175 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Ï a. Weathering : Partial b. Lithology : sandstone, , c. Formation . :Tmsk , 12. WATER a. Quality : Fresh b. Source* : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, coconut, rubber Area used : 20 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Hillocky >16Ï. . 0-50 m 18. FLAN/ Dominant: Not elongated and random 40-602 of area flat-topped PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 60 m Maximum : 200 m Range : 75 - 150 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: .None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) Item | 10b | 12a I 14a | 14b | 19 I 20 | 21bI 22b | 22c | 22dl | 22d2 | 22el 1 23b | 23c I 23d || 23er 1 24 |1 25 | rate : 1 | - 1 I 1 | 1 | 2 1 2 | 2 1 2 1 2 1 2 | 2 | i !1 1.1 1 1 1 |1 .1 -1 2 1 2 |

28. REPRESENTATIVE PROFILES: ity/ / /88/YM/0717/51/ /O43/ est/ /88/KR/0717/63/ /076/

0617&0717 - 218 Page 2 LABO UNIT : Hq.1.2.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and middle slopes Lover slopes c. 1 of Land Unit 801 20Z SLOPES dl. Steepness 16 - 251 16 - 25X d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Convex Straight SOILS el. USDA Class tropopsamments dystropepts e2. X Facet 100Z 1001

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamments dystropepts

b. Texture: topsoil: Moderately fine Coarse subsoil: Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Extremely deep Very deep d. Drainage : Well drained Exessively drained NUTRIENTS :— • . Exch. K: topsoil: Very low Low subsoil: Very low Low f. Total K20: topsoil: Very low Very low subsoil: * Very low Very low g. Avail. P: method : Bray I Bray I ' topsoil: Very low Very high subsoil: Very low Low h. Total F: topsoil: Low Medium subsoil: Low Low OTHERS : i. CEC pH 7 topsoil: Very low Very low subsoil: Very low Very low j. Reaction: topsoil: Very strong acid Exesilively acid subsoil: Very strong acid Exessively açid k. Al sat. topsoil: High High subsoil: Very high High 1. Al toxicity : Yes No m. Acid sulph. pot. : Hot relevant Not relevant n. Salinity (ec). : Salt free Salt free o. Other toxicity ' : p. Root obstr. layer : q. Organic matter (Z) : 0.9 2.1 T. TEB (meq/100 g) : 0.4 0.9 s. Total anal, profiles: 1

t. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Tropopsaranents are extrapolated from LÛ Hq.1.2.

0617&0717 - 219 LAND UNIT : dHu.1.2.2 Hapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

-dHu.1.2.2 Qd.2.3.2

<300m

1. LAND UNIT : dHu.1.2.2 Hillocks and hills in random pattern, undifferentiated sedimentary rocks, moderately steep slopes (16-251), covered with acid tuffs, mod. dissected 2. MAP SHEET : 0717 3. AREA : 9.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/09/90 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 101 a. Weathering : Partial b. Llthology : sandstone, clay, c. Formation : Tmsk , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : Not relevant 15. VEGETATION/LAND USE : secondary forest, bush, scrub, alang-alang Area used : 0 * 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ . Dominant: Not elongated and random > 601 of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium

20. ALTITUDE • Minimum : 75 m aMaximuro : 200 m Range : 100 - 150 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderat 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 I 22el | 23b | 23c I 23d | 23er | 24 | 25

rate :l.|l|l|l|l|l|2|2|2| 2| 1 | 1 |2|2|

28. REPRESENTATIVE PROFILES: eot/ / /88/SS/0717/21/ /059/ ity/ /88/KR/0717/14/ /065/ uda/ / /89/KR/0717/14/ /094/

O617&O717. -220 Page 2 LAND UNIT : dHu. 1.2.2 Mapsheat : 0717 08/12/90.

22. FACETS. SLOPES and SOILS FACETS a. Identifier - : la lb b. Description : Interfluves Interfluves Valley bottoms c. X of Land Unit : 90Z 902 10Z SLOPES dl. Steepness - : 16 - 25Z 16 - 251 0-81 d2. Slope length : 101 - 200 m 101 - 200 m < 50 in d3. Slope curvature : Convex Convex Concave SOILS el. USDA Class : troporthent dystropepts hapludults 62. Z Facet : 60Z 401 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents dystropepts hapludults

b. Texture: topsoil: Moderately fine Moderately fine Fine subsoil: Moderately fine Moderately fine Fine c. Depth: peatsoil: mineralsoil: Moderately shallow Very deep Extremely deep d. Drainage : Exessively drained Well drained Moderately well NUTRIENTS : e. Exch. K: topsoil: Low Low Low subsoil: Low Very low Very low t.Total K2O: topsoil:* Low Low Low subsoil: Low Very low Very low g. Avail. P: method: Bray I Bray I Bray I topsoil: Medium Very low Very low subsoil: Very low Very low Very low h. total P: topsoil: Very low Low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low Low subsoil: Low Low Low j. Reaction: topsoil: Exessively acid Very strong acid Very strong acid subsoil: Exessively acid Very strong acid Very strong acid k. Al sat. topsoil: High High Low subsoil: Very high High Medium 1. Al toxicity : Yes Yes No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 35 cm q. Organic matter (Z) : 5.9 2.4 2.8 r. TEB (meq/100 g) : 0.9 1.3 2.7

8. Total anal, profiles: 1 1

t. LAB CHECK Yes Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts and Hapludults are extrapolated from dHu.1.3.2 and the data of Troporthents are from Hu.I.3.3.

O617&O717 - 221 LAND UNIT : Ha.1.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION : .

-Ha.1.2.3

<300m

1. LAND UNIT : Ha.1.2.3 Hillocks and hills in random pattern, intermediate tuffs, moderately steep slopes <16-25*), strongly dissected 2. MAP SHEET : 0717 3 AREA : 96.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 US /8348-153 9. RADAR STAR-1/250/88/0717-3 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering High b. Lithology andesitic tuffs, , c. Formation Tmvak ,- . . 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, rubber, towns, villages Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence 17. TERRAIN : Hilly ">16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60% of sted/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 50 m Maximum : 300 m' Range : 100 - 250 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el I 23b | 23c | 23d I 23er 24 | 25 | rate :2|l|l|l|2|2 2| 2 2 I 2 2 | 2 |

26. REPRESENTATIVE PROFILES: not available

O617&O717 - 222 Pago 2 LAND UNIT : Ha.1-2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes e. X of Land Unit : 701 30* X X SLOPES dl. Steepness : 16 - 25X 16 - 25Z d2. Slope length : 201 - 500 m 101 - 200 m d3. Slope curvature : Straight Straight SOILS el. USOA Class : dystropepts hapludults e2. X Facet : 100X 100X X X

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Fine Moderately fine subsoil: Fine Moderately fine — -7 c. Depth: peatsoil: mineralsoil: Very deep Deep d. Drainage : Well drained Well drained NUTRIENTS :- e. Exch. K: topsoil: — — -- r- subsoil: f. Total K20: topsoil: subsoil: g. Avail. P: method: topsoil: — -- subsoil: h. Total P: topsoil: — — — • — subsoil: OTHERS : ; i. CEC pH 7 topsoil: subsoil: j. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Strong acid k. Al sat. topsoil: — — — -=• subsoil: 1. Al toxicity : ' -- — m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : — 92 cm q. Organic matter (IX) : r. TEB (meq/100 g) :

- s—Total"anal. profiles: 0 0 0 0

f. LAB CHECK : No No

27. ADDITIONAL NOTES :

06176.0717 - 223 LAND UNIT : Hfq.1.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

CROSS SECTION :

Mq.2.2.3 Mq. unconsolidated 2.3.4 sedimentary rocks ê 4^1625% i •'/•'•' I'M•&." =300 m 5.':V:-:J-::/ -'* ; '• 'I '\i\ï

1. LAND UNIT : Hfq.1.2.3 Hillocks and hills in random pattern, fine and coarse felsic sedimentary rocks, moderately steep slopes (16-25Z), strongly dissected MAP SHEET : 0717 3. AREA : 35.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final SATELLITE SCENES : 128/59/08/08/85 AERIAL PHOTOGRAPHS : 1:100.000 23 /8218-199 RADAR STAR-1/250/88/0717-1 PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weatherins : Partial b. Lithology : claystone, sandstone, c. Formation : Tms , Tmbal 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river FISHERIES : River RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15 VEGETATION/LAND USE : , bush, scrub, alang~alang, rubber Area used : 20 X 16 ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17 TERRAIN : Hilly >16Z, 51-300 a 18 PLAN/ Dominant : Not elongated and random > 60Z of area flat-topped PROFILE Included: 19, RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 330 m Range : 225 - 325 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b I19 | 20 | 21b | 22b i 22c | 22dl | 22d2 | 22el || 23b| 23c | 23d | 23er 1 241 25 |

rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 | 2 1 2 | 2 1 2 1 2 1 2 1 2 1 2 1 2 |

28. REPRESENTATIVE PROFILES: ity/ / /89/CD/0717/12/ /141/ uda/ /87/GD/0717/44/ /025/

O617&O717 - 224 Page 2 LAND UNIT : Hfq.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 60Z 40Z SLOPES dl. Steepness 25 - 75Z 16 - 25Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class .dystropepts hapludults e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Medium Medium subsoil: Medium Medium c. Depth: peatsoil: inineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low subsoil: Very low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Low Very high subsoil: High Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 4.5 0.6 x. TEB (meq/100 g) : 2.5 0.4 s. Total anal, profiles:

f. LAB CHECK • :

27. ADDITIONAL NOTES : The soil data are extrapolated from Hfq.1.3.3

0617&0717 - 225« LAND UNIT : Hq.1.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Hq.1.2.3-T- Pf .2.1 unconsoKdated sedimentary rocks

<300r

••vy-.-"»---.-:*»

1. LAND UNIT : Hq.1.2.3 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, moderately steep' slopes (16-25X), strongly dissected 2. MAP SHEET : 0717 3 AREA : 110.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100J 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7\ SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-171 9. RADAR STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 02 a. Weathering Partial b. Lithology sandstone, , c. Formation Put , Tmsk 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60% of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 250 m Range : 125 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 rate :l|l|l|l|2|2| 2 ] 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | I |2|2

28. REPRESENTATIVE PROFILES: est/ / /87/KR/0717/63/ /076/ ity/ /88/KS/0717/54/ /100/

O617&O717 - 226 Page 2 LAND UNIT : Hfq.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 60Z 40Z SLOPES dl. Steepness 25 - 75Z 16 - 25Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight" Straight SOILS el. USDA Class dystropepts hapludults e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Medium Medium subsoil: Medium Medium c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low subsoil: Very low f. Total K2O: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Low Very high subsoil: High Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 4.5 0.6 r. TEB (meq/100 g) : 2.5 0.4

s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data are extrapolated from Hfq.1.3.3

0617&0717 - 225« LAND UNIT : Hq.1.2.3 Hapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Hq.1.2.3— » Pf.2.1 unconsoHdated wdimentary rocks

<300m

1. LAND UNIT : Hq.1.2.3 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, moderately steep slopes (16-25X), strongly dissected 2. MAP SHEET : 0717 3 AREA : 110.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS • Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-171 9. RADAR STAR-1/250/88/0717-« 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology : sandstone, , c. Formation : Put , Tmsk 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 250 m . Range : 125 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) • • , item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22al | 23b | 23c | 23d | 23er | 24 |- 25 | rate : 1 1 I 1 I 2 I 2 2 | 2| I 2

28. REPRESENTATIVE PROFILES: est/ / /87/KR/0717/63/ /076/ ity/ /88/KR/0717/54/ /100/

06176.0717 - 226 Page 2 LAND UNIT : Hq.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Crest and middle slopes Lower slopes c. X of Land Unit 80Z 20Z SLOPES dl. Steepness 16 - 25Z 16 - 25Z d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Convex Straight SOILS el. USDA Class tropopsamnents dystropepts e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamnents dystropepts

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately coarse c. Depth: peatsoil: mineralsoil: Extremely deep Extremely deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch..K: topsoil: Very-low Very low subsoil: Very low Very low f. Total K2O: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Low subsoil: Very low Low h. Total P: topsoil: Low. Low subsoil: Low Low OTHERS : 1. CEC pH 7 topsoil: Very low Very low subsoil: Very low Very low j. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Exessively acid k. Al sat. topsoil: High High subsoil: Very high ' High 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 0.9 1.6

r. TEB (meq/100 g) : 0.4 0.5

s. Total anal, profiles: 1

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Tropopsamnents are extrapolated from LU Hq.1.2.1

O617&O717 - 227 LAND UNIT : Hy.1.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Hy.1.3.4,-- -Hy.1.2.3- u.1.2 —Ha .3.3.if r ^6-25%

<300m \ \ \

1. LAHD UNIT : Hy.1.2.3 Hillocks and hills in random pattern, undifferentiated metamorphic rocks, moderately steep slopes (16-25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 2.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS .IDENTIFIERS Updated by : SS ' Edit date: 05/09/90 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9S /8347-60 9. RADAR STAR^1/250/88/0717-1/2 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology gneiss,. , c. Formation Muw' 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None . - " 15. VEGETATION/LAND USE ; secondary forest, rubber Area used : 10 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 200 m Range : 125 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl-| 22d2 | 22el | 23b | 23c | 23d 1 23er | 24 | 25 | rate : 1 1 I 1 I 1 2 I 2. 2 I 2 I 2 | 2 |

28. REPRESENTATIVE PROFILES: ith/ / /89/KR/0716/22/ /171/ ity/ /89/JH/0716/43/ /195/

0617&0717 - 228 Pa»» 2 LAND UNIT : Hy.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Crest, middle & upper Lower slopes c. I of Land Unit 701 30Z SLOPES dl. Steepness 16 - 251 16 - 25Z d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Convex Concave SOILS el. USDA Class humitropepts dystropepts e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts dystropepts

b. Texture: topsoil: Medium Moderately fine subsoil: Medium Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : - e. Exch. K: topsoil: Very low Low subsoil: Very low Very low t. Total K20: topsoil: Low Very low subsoil: Very low Very low g. Avail. F: method : Bray I Bray I topsoil: Very low Medium subsoil: Very low Very low h. Total P: topsoil: Very low Low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low • Low subsoil: Very low Very low J. Reaction: topsoil: Very strong acid Strong acid subsoil: Strong acid Exessively acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) 5.2 3.7 r. TEB (meq/100 g) : 0.3 1.4

8. Total anal, profiles:.

I. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : Extrapolated data from'0716 sheet, LU Hy.1.2/3

O617&O717 - 229 LAND UNIT : Hu.1.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Kc.6.3 Au. -Hu.1.2.3 1.4.3 metasedimentary rocks

<300m

1. LAND UNIT : Hu.1.2.3 Hillocks and hills in random pattern, undifferentiated sedimentary rocks, moderately steep slopes (16-251), strongly dissected 2. MAP SHEET : 0717 3 AREA : 40.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 IIS /8348-159 9. RADAR STAR-1/250/88/0717-1 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology claystone, shale, c. Formation Puku , Put 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 20 X 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Hilly >16I, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 602 of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Medium b. Variability 20. ALTITUDE Minimum : 100 m Maximum : 210 m Range : 100 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3- tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl I 22d2 | 22el I 23b | 23c I 23d I 23er 24 | 25 | rate :2|l|l|l|2|2| 2 | 2 2 I 2 |

28. REPRESENTATIVE PROFILES: ity/ / /89/YH/0717/41/ /091/

0617&O717 - 230 Pago 2 LAND UNI" : Hu.1.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description : Interfluves c. I of Land Unit : 100Z SLOPES dl. Steepness : 16 - 25* d2. Slope length : 50 - 100 m d3. Slope curvature : Straight SOILS el. USDA Class : dystropepts e2. X Facet : 1001

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts

b. Texture: topsoil: Moderately fine subsoil: Moderately fine c. Depth: peatsoil: mineralsoil: Deep d. Drainage : Well drained NUTRIENTS : e. Exch. K: topsoi1: Low subsoil: Low f. Total K2O: topsoil: Low subsoil: Very low g. Avail. P: method: Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Very low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Medium subsoil: Low j. Reaction: topsoil: Strong acid subsoil: Strong acid k. Al sat. topsoil: High subsoil: Very high 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant n. Salinity (ec) : Salt free o. Other toxicity : p. Root obstr. layer : 76 cm q. Organic matter (Z) : 6.4 r. TEB Cmeq/100 g) : 0.8 a. Total anal, profiles: 10 0

f. LAB CHECK : Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated from LU Hu. 1.3.3

O617&O717 - 231 LAND UNIT : dHu.1.3.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

MAP IMAGE : CROSS SECTION :

Mu.2.2.3 I dHu.1.3.2- i dacite cover

'300 m

1. LAND UNIT : dHu.1.3.2 Hillocks and hills in random pattern, undifferentiated sedimentary rocks, steep to very steep slopes (>25X), covered with acid tuffs, mod. dissected 2. HAP SHEET : 0717 3. AREA : 75.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/09/90 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 201 a. Weathering : Partial b. Lithology : dacite, clay, c. Formation : Qpsg , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : Not known 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : Not relevant 15. VEGETATION/LAND USE : secondary forest, bush, scrub, alang-alang Area used : 0 X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16J, 51-300 m 18. PLAN/ Dominant: Elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : .200 m Maximum : 300 m Range : 250 - 275 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item 1 10b I 12a | 14a | 14b | 19 | 20 | 21b | 22b I 22c I 22dl I 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 | rate : 1 1 | 1 2 I 2 I 2 | |2|2|

28. REPRESENTATIVE PROFILES: eot/ / /88/SS/0717/21/ /059/ ity/ /89/KR/0717/14/ /065/ uda/ / /89/KR/0717/14/ /094/

O617&O717 - 232 Fag* 2 LAND UNIT : dHu.1.3.2 Mapsheet : 0717 08/12/90

22. FACETS. SLOPES and SOILS FACETS a. Identifier : 1 b. Description Crest and upper slopes Middle slopes Lower slopes c. I of Land Unit 501 351 15Z SLOPES dl. Steepness 16 - 251 16 - 55Z 3 - 8Z d2. Slope length 101 - 200 m 101 - 200 m 50 - 100 m d3. Slope curvature Convex Straight Concave SOILS •1. USDA Class troporthents dystropepts hapludults e2. Z Facet 100Z 1001 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents dystropepts hapludults

b. Texture: topsoil: Moderately fine Moderately fine Fine subsoil: Moderately fine Moderately fine Fine c. Depth :. peâtsoil: i lineralsoil: Moderately shallow Very deep Extremely deep d. Drainage Exessively drained Well drained Moderately well NUTRIENTS :-- e. Exch. K: topsoil: Low Low Low subsoil: Low Very low Very low f. Total K20: topsoil: Low Low Low subsoil: Low Very low Very low g. Avail. P: method : Bray I Bray I Bray I topsoil: Medium Very low Very low subsoil: Very low Very low Very low h. Total P: topsoil: Very low Low Very low subsoil: Very low Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low Low subsoil: Low Low Low j. Reaction: topsoil: Exessively acid Very strong acid Very strong-acid subsoil: Exessively acid Very strong acid Very strong acid k. Al sat. topsoil: High High Low subsoil: Very high High Medium 1. Al toxicity : Yes Yes No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer : 35 cm q. Organic matter (Z) : 5. if 2.« 2.8 r. TEB (meq/100 g) : 0.9 1.3 2.7 ft. Total anal, profiles:

t. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Troporthents are extrapolated from Hu.1.3.3

0617&07îr7 - 233 LAND UNIT : HB. 1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

Ha. 1.3.3 Va, older volcanic 1.4.2 rockt .

<3O0m

':&ïU*:-\^..<-.r.:*-'

1. LAND UNIT : Ha.1.3.3 Hillocks and hills in random pattern, intermediate tuffs, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 199.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 10 /8348-149, 10 /8348-143 8. RADAR STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology andesitic tuffs, , c. Formation Tmvak , Tmvo 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, alang-alang, rubber Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 50 m Maximum : 350 m Range : 100 - 300 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 23. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) N item | 10b | 12a | 14a | 14b I 19 I 20 | 21b | 22b | 22c | 22dl | 22d2 I 22el | 23b | 23c I 23d | 23er | 24 | 25 rate :2|l|l|l|2|2| I 2

28. REPRESENTATIVE PROFILES: ity/ / /89/CD/0717/13/ /092/ uda/ /89/LH/0717/14/ /127/,

O617&O717 - 234 Page 2 LAND UNIT : Ha. 1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. I of Land Unit 60Ü 40Z SLOPES dl. Steepness 25 - 55X 16 - 55* d2. Slope length 201 - 500 m 101 - 200 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. X Facet 1001 100Z OX

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately coarse Moderately fine c. Depth: peatsoil: mineralsoil: Moderately deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Very low Low subsoil: -~ Low t. Total K2O: topsoil: Very high Very high subsoil: Very high Very high g. Avail. P: method: — Bray I topsoil: Very low subsoil: Very low h. Total P: topsoil: Medium Medium subsoil: Medium Medium OTHERS : i. CEC pH 7 topsoil: Very low subsoil: Low j. Reaction: topsoil: Strong acid Very strong acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxiclty : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 62 cm q. Organic matter (X) : 2.6 2.0 r. TEB (meq/100 g) : 4.1 1.3 s. Total anal, profiles: 1

f. LAB CHECK Yes

27. ADDITIONAL NOTES

O617&O717 - 235 LAHD UNIT : Hf.1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

-Hf.1.3.3 Mu.2.3.4

<300m

1. LAND UNIT : Hf.1.3.3 Hillocks and hills in random pattern, fine felsic sedimentary rocks, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 55.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status • : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 IIS /8348-157 9. RADAR STAR-1/250/88/0717-2 10. PARENT MATERIAL 11. ROCK OUTCROP 0Z a. Weathering : Partial b. Lithology : claystone, , c. Formation : Tups , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 350 m Range : 200 - 300 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys : None b. Interfluvës : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 1 14a | 14b | 19 I 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b 1 23c | 23d | 23er 1 241 25 |

2 rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 |1 2 | 2 | 2 11 2 1 2 | 2 | 1 1 2 11 1

28. REPRESENTATIVE PROFILES: ity/ / /87/KR/0717/43/ /054/ uda/ /87/JH/0717/43/ /056/

0617&0717 - 236 Page 2 LAND UNIT : Hf.1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Middle and lower slopes Crest and upper slopes c. X of Land Unit 702 302 SLOPES dl. Steepness 25 - 551 25 - 552 d2. Slope length 201 - 500 m 101 - 200 m d3. Slope curvature Straight Convex SOILS el. USDA Class hapludults dystropepts e2. Z Facet 1002 1002

23. SOIL CHARACTERISTICS a. USDA Great Group : hapludults dystropepts

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Extremely deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Medium Very low subsoil-: Low Low f. Total K2O: topsoil: High Low subsoil: High Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very high h. Total P: topsoil: Very low Low subsoil: Very low Medium OTHERS : — i. CEC pH 7 topsoil: Medium Low subsoil: High Very -low J. Reaction: topsoil: Very strong acid Exessively acid subsoil: Very strong acid Exessively acid k. Al sat. topsoil: Medium Very high subsoil: Very high None, very low 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (2) : 0.2 0.8 x. TEB (meq/100 g) : 1.3 0.4

. s."Total anal, profiles: 1

£. LAB CHECK

27. ADDITIONAL NOTES

O617&O717 - 237 LAND UNIT : H£q.l.3.3 Mapshaet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

<300m

1. LAND UNIT : Hfq.1.3.3 Hillocks and hills in random pattern, fine and coarse felsic sedimentary rocks, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 75.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 127/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 US /8348-161 9. RADAR : STAR-l/250/88/0717-I 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : claystone, sandstone, c. Formation : Tms , Tmbal 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c, Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, alang-alang, rubber Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability :-Medium 20. ALTITUDE Minimum : 150 m Maximum : 300 m Range : 150 - 275 m 21. DRAINAGE .a. Pattern: Dendritic b. Density : Moderately high 2«. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) Item | 10b | 12a | 14a | 14b | 19 I 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er 1 241 25 | rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 1 2 | 2 | 2 j1 2 1 2 |! 2 1 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: uda/ / /87/GD/0717/44/ /025/ ity/ /89/CD/0717/12/ /141/

0617&0717 - 238 Page 2 LAND UNIT : Hfq.1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 70Z 30Z SLOPES dl. Steepness 25 - 55Z 25 - 55Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture : topsoi1: Medium Medium subsoil: Medium Medium c. Depth : peätsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low subsoil: Very low f. Total K20: topsoil: Very low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Low Very high subsoil: High Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 4.5 0.6 z. TEB (meq/100 g) : 2.5 0.4

«..Total anal, profiles: 1

t. LAB CHECK : Yes. Yes

27. ADDITIONAL NOTES

0617&O717 - 239 LARD UNIT : Hq.1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION

Hq.UJl Au.1.1.1 -Hq. 1.3.3- Consolidated Sedimentary rocks

:300 m

1. LAND UNIT : Hq.1.3.3 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3 AREA : 142.« km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 155 /8319-175 9. RADAR STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : sandstone, , c. Formation : Tmsk , Tmba 12. WATER .a. Quality : Fresh b. Source : Rain, Perennial river- 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, rubber Area used : 20 I 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence 17. TERRAIN : Hilly >16I, 51-300 m 18. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 300 m Range : 125. - 250 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 2*. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1- reliable, 2= probable, 3- tenable, 4= plausible) item | 10b | 12a | 14a I 14b I 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el I 23b | 23c I 23d | 23er | 24 | 25 rate : 1 1 | 1 2 | 2| 1 I 1 I 1 I 1 I I 2

28. REPRESENTATIVE PROFILES: ity/ / /87/JH/0617/63/ /096/ ity/ /88/KR/0717/22/ /041/

O617&O717 - 240 Page 2 LAND UNIT : Hfq.1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. I of Land Unit 701 30Z SLOPES dl. Steepness 25 - 55Z 25 - 551 d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. X Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture : topsoil: Medium Medium subsoil: Medium Medium c. Depth : peatsoil: i lineralsoil: Very deep Very deep d. Drainage Well drained Well drained NUTRIENTS :—- e. Exch. K: topsoil: Low subsoil: Very low f. Total K20: topsoil: Very low Very low subsqi-1 : Very low Very low g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low J. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Low Very high subsoil: High Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : «.5 0.6 r. TEB (meq/100 g) : 2.5 0.4

«..Total anal, profiles: 1

t. LAB CHECK : Yes. Yes

27. ADDITIONAL NOTES

O617&O717 - 239 LAND UNIT : Bq.1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

Au.1.1.1 -Hq.1.3.3- Consolidated Sedimentary rocks

<300m

1. LAND UNIT : Hq.1.3.3 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, stee to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0717 3. AREA : 142.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 155 /8319-175 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : sandstone, , c. Formation : Tmsk , Tmba 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, rubber Area used : 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m - ,. .. • 18. PLAN/ Dominant: Not elongated and random > 60% of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE à. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 300 m Range : 125 - 250 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 2*. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b I 22b I 22c | 22dl | 22d2 | 22el I 23b | 23c I 23d | 23e I 24 I 25 | rate :l|l|l|l|2|2| 2 | 2 2 | 1 I | 2 | 2 |

28. REPRESENTATIVE PROFILES: ity/ / /87/JH/0617/63/ /096/ ity/ /88/KR/0717/22/ • /041/

0617&0717 - 240 Page 2 LAND UNIT : Hq. 1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes c. X ,o£ Land Unit : 851 15Z X 1 SLOPES dl. Steepness : ' 25 - 55* 25 - 55Z d2. Slope length : 201 - 500 m . 101 - 200 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : tropopsanments dystropepts e2. X Facet : 1001 100Z X X

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsanments dystropepts

b. Texture: topsoil: Coarse Moderately coarse subsoil: Coarse Moderately coarse — -7 c. Depth: peatsoil: mineralsoil: Moderately deep Extremely deep d. Drainage : Somewhat exessively Somewhat exessively NUTRIENTS : e. Exch.' K: topsoil: -* Low subsoil: — Very low f. Total K2O: topsoil: — Low subsoil: — Very low g. Avail. P: method: — Bray I topsoil: . High subsoil: Low h. Total P: topsoil: -- Low subsoil: -- Very low OTHERS : i. CEC pH 7 topsoil: — Low subsoil: — Very low j. Reaction: topsoil: — Exessively acid subsoil: — Exessively acid k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root.obstr. layer : 58 cm q. Organic matter (X) : -- 2.2 r. TEB (meq/100 g) : -- 0.5 s. Total anal, profiles: 0 2 0 0

f. LAB CHECK : No Yes

27. ADDITIONAL NOTES :

O617&O717 - 241 LAND UNIT : Hg.1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

HAF IMAGE : CROSS SECTION :

Va.1.4.2 -Hg.1J.3- Va.1.4.2 granite

25%

'300

1. LAND UNIT : Hg.1.3.3 Hillocks and hills in random pattern, acid plutonic rocks, steep to very steep slopes (>25I), strongly dissected MAP SHEET : 0717 3 AREA : 38.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final SATELLITE SCENES 128/59/08/08/85, 128/58/08/08/85 AERIAL PHOTOGRAPHS 1: .000 RADAR STAR-1/250/88/0717-3 PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology granite, , c. Formation : Mpisl , Tmisi 12. WATER a. Quality Fresh b. Source : Rain, Perennial river FISHERIES : River RIVERS a. Floodrisk «rater : None b. Floodrisk sed.: None -c. Inundation ; None 15 VEGETATION/LAND USE : , bush, scrub, rubber Area used : 23 X ACCELERATED EROSION a. Occurrence : Comnon b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 6ÛZ of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 'l50 m : 300 m Range : 150 - 250 m Maximum 21. DRAINAGE a. Pattern: Dendritic : Moderately high 24. VALLEY FLOOR Width : Very narrow b. Density 25. FRAGMEN a. Valleys: None : Small blocks b. Interfluves 26. RELIABILITY (1- reliable, 2- probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

2| 2 I 2 I 2

28. REPRESENTATIVE PROFILES: uda/ / /87/JH/0617/63/ /088/

O617&O717 - 242 Page 2 LAND UNIT : Hg.1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 752 25Z SLOPES dl. Steepness 25 - 55Z 25 - 55Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Concave SOILS el. USDA Class dystropepts hapludults e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Fine Moderately fine subsoil: Fine Moderately fine c. Depth: peatsoil: mineralsoil: Moderately deep Very deep d. Drainage Moderately well Well drained NUTRIENTS : e. Exch. K: topsoil: Medium subsoil: Low f. Total K2O: topsoil: Low subsoil: Very low g. Avail. P: method: Bray I topsoil: Medium subsoil: Very low h. Total P: topsoil: Low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Low subsoil: Very low j. Reaction: topsoil: Exessively acid subsoil: Exessively acid k. Al sat. topsoi1: None, very low subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (X) : 1.5 r. TEB (meq/100 g) : 3.5 s. Total anal, profiles:

f. LAB CHECK

27. ADDITIONAL NOTES

O617&O717 - 243 LAND UNIT : Hu. 1.3.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION

+lu.1.3.3- Au.2.2.1

<300m

1. LAND UNIT : Hu.1.3.3 Hillocks and hills in random pattern, undifferentiated sedimentary rocks, steep to very steep slopes (>25Z), strongly dissected MAP SHEET : 0717 3 AREA : 63.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final SATELLITE SCENES 128/59/08/08/85 AERIAL PHOTOGRAPHS 1:100.000 US /S323-39 , 12S /8348-201 RADAR STAR-1/250/88/0717-2 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial- b. Lithology claystone, clay, c. • Formation Qvsg , 12. WATER a. Quality Fresh b. Source Rain, Perennial river FISHERIES : River RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15 VEGETATION/LAND USE : , bush, scrub, alang-alang, rubber Area used : 10 Z 16 ACCELERATED EROSION a. Occurrence : Co b. Evidence : Various 17 TERRAIN : Hilly >16Z, 51-300 m 18 PLAN/ Dominant: Not elongated and random > 60Z sted/peaked PROFILE Included: 19 RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 300 m Range : 200 - 300 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25, FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 .| 22el | 23b | 23c | 23d | 23er | 24 | 25 rate :2|l|l|l|2|2| 2 | 2 | 2 | 2| 2| 1 | 1 | 2 | 2

28. REPRESENTATIVE PROFILES: eot/ / /88/SS/0717/21/ /059/ ity/ /89/YH/0717/41/ /091/

O617&O717 - 244 Fag* 2 LAND UMIT : Hu. 1.3.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Middle and lower slopes Crest and upper slopes c. I of Land Unit 852 15Z SLOPES dl. Steepness 25 - 551 25 - 55? d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Straight Convex SOILS el. USDA Class dystropepts troporthents e2. I Facet 1001 100X

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts troporthents

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Deep Moderately shallow d. Drainage : Well drained Exessively drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low Low f. Total K2O: topsoil: Low Low subsoil: Very low Low g. Avail. P: method: Bray I Bray' I topsoil: Very low Medium subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Medium Low subsoil: Low Low J. Reaction: topsoil: Strong acid Exessively acid subsoil: Strong acid Exessively acid k. Al sat. topsoil: High High subsoil: Very high Very high 1. Al toxicity • : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 76 cm 35 cm q. Organic matter iX) : 6.« 5.9 T. TEB (meq/100 g) : 0.8 0.9 .

0. Total anal, profiles: 1

f. LAB CHECK : Yes

27. ADDITIONAL NOTES :

O617&O717 - 245 LAND UHIT : Hqk.1.3.4 Mopaheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/80

HAP IMAGE : CROSS SECTION :

Pfk.5.2

<300m

1. LARD UNIT : Hqk.1.3.4 Hillocks and hills in random pattern, coarse felsic sedimentary and soft calcareous rocks, steep to very steep slopes (>25Z), extremely dissected 2. HAP SHEET : 0717 3 AREA : 22.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I S. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS . 1:100.000 145 /S323-39 9. RADAR , STAR-1/250/88/0717-2/3 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : marly clay, sandstone, c. Formation Tmt , Tmts 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : None * b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE , bush, scrub, grazing land, alang-alang Area used 70 X 16. ACCELERATED EROSION a. Occurrence : Extensive b. Evidence Gulleys 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: Not elongated and random < 40Z of area flat-topped 19. RELIEF AMPLITUDE a. Amplitude High b. Variability 20. ALTITUDE Minimum : 150 m Maximum Range : 175 - 275 m 21. DRAINAGE a. Pattern: Dendritic b. Density High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Medium blocks

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 I 21b | 22b | 22c I 22dl | 22d2 | 22el I 23b | 23c I 23d I 23er | 24 | 25 rate :l|l|l|l|2|2| 2 I" 2 t 2| 2| 2 I 2 I 2 I 2.1 2 |

28. REPRESENTATIVE PROFILES: ite/ / /89/KR/0717/14/ /086/

0617&0717 - 246 Page 2 LAUD DUIT : Hqk. 1.3.4 Mapsheet : 0717 06/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 — — b. Description : Upper and middle slopes Lower slopes c. I of Land Unit : 60Z «01 0Z Z SLOPES dl. Steepness : 25 - 55Z 25 - 55Z d2. Slope length : 201 - 500 m 101 - 200 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : troporthents eutropepts e2. Z Facet : 100Z 100Z OX Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents eutropepts

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately coarse Fine c. Depth: peatsoil: mineralsoil: Moderately shallow Very deep d. Drainage : Somewhat exessively Well drained NUTRIENTS :- e. Exch. K: topsoil: — Low subsoil: -- Low f. Total K20: topsoil: — Very high subsoil: — High g. Avail. P: method: -- Olsen topsoil: Medium subsoil: Medium h. Total P: topsoil: — Medium subsoil: -- Medium OTHERS : i. CEÇ pH 7 topsoil: -- High subsoil: — High j. Reaction: topsoil: Moderately alkaline • Slightly alkaline subsoil: Moderately alkaline Slightly alkaline k. Al sat. topsoil: — ' subsoil:

1. Al toxicity : m. Acid sulph. pot. : Not relevant • Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 36 cm1 ' 106 cm q. Organic matter (Z) : — 7.7 r. TEB (meq/100 g) : -- 36.3 s. Total anal, profiles: 0 10 0

f. LAB CHECK : No Yes

27. ADDITIONAL NOTES : • .

O617&O717 - 247 LAND UNIT : Hg.1.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

=300 m

1. LAND UNIT : Hg.1.3.4 Hillocks and hills in random pattern, acid plutonic rocks, steep to very steep slopes (>25X), extremely dissected 2. MAP SHEET : 0717 3. AREA : 98.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 11 /8348-157 9. RADAR : STAR-1/250/88/0717-1 10. PARENT MATERIAL 11. ROCK OUTCROP .: OX a. Weathering : Partial b. Lithology : granite, , . c. Formation : Tmiti , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub, rubber Area used : 25 X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence Various 17. TERRAIN : Hilly >16I, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 400 m Range : 250 - 350 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow' 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b I 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

rate :l|l|l|l|2|2|2|2|2| 2 I 2 I I 2

28. REPRESENTATIVE PROFILES: uda/ / /87/JH/0617/63/ /088/

O617&O717 - 248 Pa«* 2 LAND UNIT : Hg. 1.3.* Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes e. X of Land Unit : 70Z 301 Z Z SLOPES dl. Steepness : 25 - 55* 25 - 55Z d2. Slope length : > 500 m 201 - 500 m d.3. Slope curvature : Straight • Concave SOILS •1. USDA Class : dystropepts hapludults •2. X Facet : 100Z - 100Z I Z ,

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Fine Moderately fine subsoil: Fine Moderately fine c. Depth: peatsoil: mineralsoil: Moderately deep Very deep d. Drainage . : Moderately well Well drained NUTRIENTS : : • e. Exch. K: topsoil: -- Medium subsoil: — Low f. Total K2O: topsoil: — Low subsoil: — Very low g. Avail. P: method: -- Bray I topsoil: Medium subsoil: Very low h. Totîl P: topsoil: — Low subsoil: — Very low OTHERS : i. CEC-pB 7- topsoil: — Low subsoil: -— Very low J. Reaction: topsoil: — Excessively acid subsoil: — Exessively acid k. Al sat. topsoil: — None, very low subsoil: — High 1. Al toxicity : — Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 74 cm q. Organic matter (Z) : — 1.5 r. TEB (meq/100 g) : — 3.5 • — — s. Total anal, profiles: 0 10 0

£. LAB CHECK : No Yes —

27. ADDITIONAL NOTES : The soil data of Hapludults are extrapolated from LU Hg. 1.3.3

O617&O717 - 249 LAUD UNIT : By. 1.3.4 Mapsheet : 0717 LREP-SDBM, CSH-BOGOR 08/12/90

HAP IMAGE : CROSS SECTION :

Metasvdimentary and meUvolcanu rocki, badland

«300 m

1. LAND UNIT : Hy.1.3.4 Hillocks and hills in random pattern, undifferentiated metamorphic rocks, steep to very steep slopes (>25Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 9.0 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS ; Updated by : SS Edit date: 05/09/90 Status :. Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9S /8347-60 9. RADAR : STAR-1/250/88/0717-1/2 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Waathering : Partial b. Lithology : gneiss, , c. Formation : Muw 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15.'VEGETATION/LAND USE : secondary forest Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Gulleys 17. TERRAIN : Hilly >16I, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of ar a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 400 m Range : 250 - 350 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4- plausible) item | 10b | 12a I 14a I 14b I 19 | 20 | 21b | 22b | 22c I 22dl I 22d2 I 22el | 23b I 23c I 23d | 23er | 2« | 25

1 | 1 2 | 2

28. REPRESENTATIVE PROFILES: ith/ / /89/KR/0716/22/ /171/ ity/ /89/JH/0716/43/ /195/

0617&e717 - 250 Page 2 LAND UNIT : Hy.1.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and .middle slopes Lower slopes c. Z of Land Unit 701 30Z SLOPES dl. Steepness 25 - 55Z 25 - 55Z d2. Slope length 201 - 500 m 101 - 200 m d3. Slope curvature Convex Straight SOILS el. USDA Class humitropepts dystropepts el. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts dystropepts

b. Texture: topsoil: Medium Moderately fine subsoil: Medium Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Very low Low subsoil: Very low Very low f. Total K20: topsoil: Low Very low subsoil: Very low Very low g. Avail. P: method: Bray I Bray I topsoil: Very low Medium subsoil: Very low Very low h. Total P: topsoil: Very low Low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Very low Very low j. Reaction: topsoil: Very strong acid Strong acid subsoil: Strong acid Exessively acid k. Al sat. topsoil: Medium subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 5.2 3.7 r. TEB (meq/100 g) : 0.3 1.4 s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil "data are extrapolated from 0716 sheet, land unit Hy. 1.2.3

O617&O717 - 251 LAND UNIT : Ea.1.8.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

. 1.4.2 Ha.1.8.2 Va 1.4.2 Isolated hills/hillocks older volcanic rocks

<300m

1. LAND UNIT : Ha.1.8.2 Hillocks and hills in random pattern, intermediate tuffs, erosion remnants, residual hills and hillocks, moderately dissected 2. MAP SHEET : 0717 3 AREA : 16.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 10S /8348-145 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology andesitic tuffs, , c. Formation Tmvak , 12. WATER a. Quality Fresh b. Source Rain, 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE moist primary lowland forest, rubber Area used 20 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random 40*602 of sted/peaked PROFILE Included; 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Low 20. ALTITUDE Minimum : 50 m Maximum : 230 m Range : 100 - 200 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderate 24. VALLEY FLOOR Width Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b I 22b I 22c | 22dl | 22d2 I 22el | 23b | 23c | 23d | 23er I 24 | 25

1 I 1 I 1 I 2 2 | I 2 | 2

28. REPRESENTATIVE PROFILES: ith/ / /89/YM/0617/62/ /128/

0617&0717 - 252 Pago 2 LAHD UHU': Ho.1.8.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description : Middle and lower slopes Crest and upper slopes c. Z of Land Unit : 85Z 15Z ' SLOPES dl. Steepness : 16 - 55Z 16 - 25Z d2. Slope length : 201 - 500 m 50 - 100 m d3. Slope curvature : Straight Convex SOILS el. ÜSDA Class : dystropepts humitropepts e2. Z Facet : 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Medium , Fine subsoil: Fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Well drained Moderately well NUTRIENTS : e. Exch. K: topsoil: '— Medium subsoil: — Low f. Total K20: topsoil: — • Medium subsoil: -- Low g. Avail. P: method: — Bray I topsoil: -- Very low subsoil: -- Very low h. Total P: topsoii: -- Low subsoil: — Very low OTHERS : i. CEC pH 7 topsoil: -- High subsoil: -- High j. Reaction: topsoil: Strong acid Very strong acid subsoil: Moderately acid Exessively acid k. Al sat. topsoil: — Very high subsoil: — Very high 1. Al toxicity : • -- Yes m. Acid sulph. pot. : Not relevant Not irelevant n. Salinity (ec) : Salt free Snit. free o. Other toxicity : p. Root obstr. layer : 108 cm q. Organic matter (Z) : — 7.3 r. TEB (meq/100 g) : -- 1.9

s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES

O617&O717 - 253 LAND UNIT : Bq.1.8.2 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTIOH :

Au.1.1.1 Hq.1.8.2- Isolated hills/hillocks

<30Om

1. LAND UNIT : Hq.1.8.2 Hillocks and hills in random pattern, coarse felsic sedimentary rocks, erosion remnants, residual hills and hillocks, moderately dissected 2. MAP SHEET : 0617 3 AREA : 19.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1: .000 9. RADAR STAR-1/250/88/0617-4 ' 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology sandstone, , c. Formation Tmba , 12. WATER a. Quality Fresh b. Source Rain, 13. FISHERIES None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15.- VEGETATION/LAND USE , bush, scrub, rubber Area used : 10 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hillocky ' >16Z, 0-50 m 18. PLAN/ Dominant; Not elongated and random PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude'. Medium b. Variability : Medium 20. ALTITUDE Minimum : 50 m Maximum : 200 m Range : 75 - 150 m 21. DRAINAGE a. Pattern: None b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : Small blocks

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12aI 14a | 14b | 19 I 20 | 21b| 22b | 22c | 22dl | 22d2 | 22el | 23b I 23c| 23d | 23er 1 24 11 25 1 rate : 1 | 1 1 1 11 1 2 1 2 1 2 | 2 | 2 | 2 | 2 | 1 1 1 1 1 1 1 1 2 1 2 1 2 1

28. REPRESENTATIVE PROFILES: not available

0617&0717 - 254 Fa«* 2 LAND UHIT : Hq.1.8.2 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes e. X of Land Unit : 85* 151 X X SLOPES dl. Steepness : 16 - 55X 16 - 25X d2. Slope length : 201 - 500 m 50 .- 100 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : tropopsamments dystropepts e2. X Facet : 100X • 100X X X

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsanments dystropepts

b; Texture: topsoil: Coarse Fine subsoil: Coarse Fine c. Depth: peatsoil: mineralsoil: Moderately deep Moderately deep d. Drainage : Somewhat exessively Moderately well NUTRIENTS : e. Exch. K: topsoil: -r • subsoil: f. Total K20: topsoil: — -- -- subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: ------OTHERS : i. CEC pH 7 topsoil: subsoil: j. Reaction: topsoil: -- Very strong acid subsoil: -- Very strong acid k. Al sat. topsoil: subsoil: 1. Al toxicity .--...... m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 58 cm 59 cm q. Organic matter (X) : r. TEB (meq/100 g) : a. Total anal, profiles: 0 0 0.0

f. LAB CHECK : Ho No

27. ADDITIONAL NOTES : The soil data of Tropopsanments are extrapolated from LU Hq. 1.3.3

0617&0717 - 255 LAND UNIT : Hq.2.3.4 Mapsheat : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Hfq.1.2.2 Hq.2.3.4 - Parallel ridges, consolidated sedimentary 1.3.3

<300r

1. LAND UNIT : Hq.2.3.4 Parallel elongated ridges and structural slopes from bedded rocks, coarse felsic sedimentary rocks, steep to very steep slopes (25-75Z), ex. dissected 2. MAP SHEET : 0717 3 AREA : 20.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 ' 12S /8348-197 9. RADAR STAR-1/250/88/0717-1 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology sandstone, , c. Formation Tmba , Tmsk 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water ; None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE ; secondary forest, bush, scrub Area used : .0 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Elongated and parallel > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 200 m Range : 125 - 200 m 21. DRAINAGE a. Pattern: Parallel b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20'| 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 | rate : 1 1 I 1 I 1 I 2 2| 2 2 |

28. REPRESENTATIVE PROFILES: ity/ / /88/KR/0717/22/ /041/

0617&0717 - 256 Page 2 LAND UNIT : Hq.2.3.4 Mapsheat : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper, and middle slopes Lower slopes c. X o£ Land Unit 851 15X SLOPES dl. Steepness 25 - 75Z 25 - 55X d2. Slope length > 500 m 50 - 100 m d3. Slope curvature Straight Straight SOILS el. USDA Class tropopsamments dystropepts e2. I Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsamroents dystropepts

b. Texture: topsoil: Coarse Moderately coarse subsoil: Coarse Moderately coarse c. Depth: peatsoil: mineralsoil: Moderately deep Extremely deep d. Drainage : Somewhat exessively Somewhat exessively NUTRIENTS : e. Exch. K: topsoil: Low subsoil:' Very low t. Total K20: topsoil: Low subsoil: Very low g. Avail. P: method: Bray I topsoil: High subsoil: Low h. Total P: topsoil: Low subsoil: Very low OTHERS : i. CEC pH 7 topsoil: Low subsoil: Very low j. Reaction: topsoil: Exessively acid subsoil: Very strong acid k. Al sat. topsoil: High subsoil: High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 58 cm q. Organic matter (X) : 2.2 r. TEB (meq/100 g) : 0.5 s. Total anal, profiles: 0

t. LAB CHECK : No

27. ADDITIONAL NOTES : The soil data of Tropopsamments & Dystropepts are Extrapolated from Land Unit Hq.1.3.3

0617&0717 - 257 LAND UHU : Hq.3.2.2 Mapsheet : 0717 LREP-SDBM, CSR-BOGQR 08/12/90

MAF IMAGE : CROSS SECTION :

'300 m

1. LAND UNIT : Hq.3.2.2 Complex hilly relief and special f•teuresf coaxa* foisie sedimentary rocks, moderately steep slopes (16-23X), Bodarately dissected 2. MAP SHEET : 0717 3 AREA : 122.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/S9/08/08/8S • 8. AERIAL PHOTOGRAPHS 1:100.000 9S /8347-057 9. RADAR STAR-1/250/88/0717-1/2 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology sandstone, , c. Formation Traba , Tmsk 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrlsk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE secondary forest, bush, scrub Area used 0 X .16. ACCELERATED EROSION a. Occurrence Conxnon b. Evidence 17. TERRAIN Hilly >16Z, 51-300 m 18. FLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude High b. Variability : Medium 20. ALTITUDE Minimum 100 m Maximum : 220 m Range 100 - 200 m 21. DRAINAGE a. Pattern Dendritic b. Density : Moderate 24. VALLEY FLOOR Width Very narrow 25. FRAGMEN a. Valleys None b. Interfluves : None

26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4° plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl I 22d2 | 22el | 23b | 23c | 23d | 23er 24 I 25 I

rate :l|l|l|l|2|2| 2 2| 2 I 2 I

28. REPRESENTATIVE PROFILES: not available

O617&O717 - 258 Page 2 LAHD UNIT : Hq.3.2.2 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes c. X of Land Unit : 80Z 20Z Z Z SLOPES dl. Steepness : 16 - 55Z 16 - 25Z d2. Slope length : > 500 m 101 - 200 m d3. Slope curvature : Straight Straight SOILS el. US0A Class : tropopsamments dystropepts e2. Z Facet : 1001 100Z Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsanments dystropepts

b. Texture: topsoil: Coarse Medium subsoil: Coarse Moderately coarse c. Depth: peatsoil: mineralaoil: Deep Very deep d. Drainage : Somewhat exessively Well drained NUTRIENTS : e. Bxch. K: topsoil: — -- • — — • subsoil: f. Total K2O: topsoil: subsoil: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTHERS : • i. CEC pH 7 topsoil: subsoil: J. Reaction: topsoil*: Exessively acid Strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: subsoil: 1. Al toxieity : m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxieity : p. Root obstr. layer : q. Organic matter (X) : — r. TEB (meq/100 g) :

8. Total anal, profiles: 0 0 0 0

f. LAB CHECK : No .No

27. ADDITIONAL NOTES : Extrapolated data from Hq.3.3.3

O617&O717 - 259 LAND UNIT : Hqk.3.2.4 Mapshaet : 0717 LHEP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Au.4.1.1 •« dqk.3.2.4- Hqk.3.3.4 soft calcareous material, bad land • severe eroded

<3O0m

1. LAND UNIT : Hqk.3.2.4 Complex hilly relief and special features, coarse felsic sedimentary and soft calcareous rocks, moderately steep slopes (16-25Z), extremely dissected 2. MAP SHEET : 0717 3. AREA : 13.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100X S. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/06/85 8. AERIAL PHOTOGRAPHS : 1:100.000 2 /8323-179 9. RADAR : STAR-1/250/88/0717-2/3 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. LithoLogy : sand, marly clay, c. Formation : Tmts , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub Area used : 0 I 16. ACCELERATED EROSION a. Occurrence : Extensive b. Evidence 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 150 m Maximum : 300 m Range : 175 - 275 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3- tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 I 20 | 21b | 22b | 22c I 22dl | 22d2 | 22el 1 23b |! 23c |1 23d | 23er 1 24 |1 25 | rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 !1 2 | 2 '| 1 1 1 11 1 1 1 1 1 2 1 2 |

28. REPRESENTATIVE PROFILES: it«/ / /89/KR/0717/23/ /075/

0617&O717 - 260 Page 2 LAND UNIT : Htjk.3.2.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES, and SOILS FACETS a. Identifier : 1 2 — b. Description : Upper and middle slopes Lower slopes c. I of Land Unit : BOX 40Z Z X SLOPES dl. Steepness : 16 - 251 16 - 25Z — . d2. Slope length : 201 - 500 m 101 - 200 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : troporthents eutropepts e2. I Facet : 100Z 100Z Z X

23. SOIL CHARACTERISTICS a. USDA Great Group. : troporthents •' eutropepts

b. Texture: topsoil: Moderately fine Fine subsoil*: Moderately coarse Fine c. Depth: peatsoil: mineralsoil: Moderately shallow Very deep -- d. Drainage : Somewhat exessively Well drained HUTRIENTS : e. Exch. K: topsoil: — Low subsoil: — Very low t. Total K20: topsoil: — Medium subsoil: — , Low g. Avail. P: method: — Olsen topsoil: Low subsoil: Low h. Total P: topsoil: — Low subsoil: — Low OTHERS : i. CEC pH 7 topsoil: — High subsoil: -- Medium J. Reaction: topsoil: Moderately alkaline Slightly alkaline subsoil: Moderately alkaline Neutral k. Al sat. topsoil: subsoil: 1. Al toxicity : -- — — — • m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 36 cm — — -- . q. Organic matter (Z) : — 2.7 p. TEB (meq/100 g) : — 30.6

«. Total anal, profiles: 0 1 0 0

t. LAB CHECK : No ïes

27. ADDITIONAL NOTES : The soil data of Troporthents are extrapolated from LU Hqk.1.3.4

O617&O717 - 261 LARD UNIT : Bu.3.2.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Hu.3.3.4 Hu.3.2.4- Pq.9.2 Undiffcrentiated sedimentary rocks

^16-25%

<300tn

1. LAND UNIT : Bu.3.2.A Complex hilly relief and special features, undifferentiated sedimentary rocks moderately steep slopes (16-25Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 56.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-97 9. RADAR STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology clay, claystone, sandstone c. Formation Put 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub Area used ; 0 t 16. ACCELERATED EROSION a. Occurrence : ConiDon b. Evidence : Gulleys 17. TERRAIN : Hilly >16Z, 51-300 m 18. FLAN/ Dominant: Not elongated and*random PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 300 m Range : 125 - .250 a 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

28. RELIABILITY (1= reliable, 2= probable. 3= tenable, *•= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c I 22dl | 22d2 I 22el I 23b | 23c | 23d | 23er | 24 | 25 rate :l|l|l|l|2|2 2 | 2| |l|2|

28. REPRESENTATIVE PROFILES: ity/ / /89/YH/0717/41/ /091/ uda/ /88/KR/0717/53/ /114/

O617&O717 - 262 Page 2 LAHD UNIT : Hu.3.2.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 70Z 30Z SLOPES dl. Steepness 16 - 55Z 16 - 25Z d2. Slope length 201 - 500 m 101 - 200 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults o2. Z Facet 1002 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Deep * Extremely deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Very low subsoil: Low Low f. Total K20: topsoil: Low Low subsoil: Very low' Very low g. Avail. P: method : Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Very low subsoil: Very low Very low OTHERS : i. CEC pH 7 topsoil: Medium Low subsoil: Low Low J. Reaction: topsoil: Strong acid Exessively acid subsoil: Strong acid Very strong acid k. Al sat. topsoil: High Low subsoil: Very high Medium 1. Al toxlcity : Yes No D. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 76 cm q. Organic matter (Z) : 6.« 2.6 r. TEB (meq/100 g) : 0.8 3.0 s. Total anal, profiles: 1 1

t. LAB CHECK : Ye Yes

27. ADDITIONAL NOTES : The soil data are extrapolated from land unit Hu.1.3.3 & Hu.3.3.4

O617&O717 - 263 LAND UNIT : Bq.3.3.3 Mapsheet ': 0617 LREP-SDBM, CSS-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

<300m

1. LAND UNIT : Hq.3.3.3 Complex hilly relief and special features, coarse felsic sedimentary rocks, steep to very steep slopes (>25Z), strongly dissected 2. MAP SHEET : 0617 . 3 AREA : 297.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 10ÓZ 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9S /8347-60 9. RADAR STAR-1/250/88/0617-1/2 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology sandstone, , c. Formation Tmba , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river FISHERIES ; River RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15 VEGETATION/LAND USE : secondary forest, moist primary submontane forest Area used : 0 Z 16 ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17 TERRAIN : Hilly >16Z, 51-300 m 18 FLAN/ Dominant : Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19 RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 150 m Maximum : 450 m Range : 200 - 400 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2-' probable, 3s.tenable, 4= plausible) item | 10b | 12a 114a | 14b | 19 | 20 | 21b1 22b | 22c |I 22dl | 22d2 | 22el | 23b I 23c I| 23d |23er 1 24 | rate : 1 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 | 2 | 2 | 2 1 ' 21 2 |1 2 | 2 1 2 |! 2 1

28. REPRESENTATIVE PROFILES: not available

O617&O717 - 264 Page 2 LAND UNIT : Hq.3.3.3 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes c. ! of Land Unit : 80Z 20Z X Z SLOPES dl. Steepness : 25 - 55Z 25 - 55Z d2. Slope length : > 500 m 101 - 200 m — — . d3. Slope curvature : Convex Straight SOILS el. USDA Class : tropopsamments dystropepts e2. Z Facet : 100Z 100Z • Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : tropopsanments • . dystropepts

b. Texture: 'topsoil: Coarse Medium subsoil: Coarse • Moderately coarse c. Depth: • peatsoil: , — mineralsoil: Deep . Very deep d. Drainage : Somewhat exessively Well drained

NUTRIENTS : : •? e. Exch. K: topsoil: subsoil: f. Total K20: topsoil: — — — subsoil: — -, — -- • g. Avail. P: method: topsoil: — . •- subsoil:• . h. Total P: topsoil: subsoil": -- •£— OTHERS : -*»—-r i. CEC pH 7 topsoil:. •• — subsoil: j. Reaction: topsoil: Exessively acid Strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: subsoil: 1. Al toxicity : -- m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (X) : r. TEB (meq/100 g) : -- . — s. Total anal, profiles: 0 0 0 0

f. LAB CHECK : No No

27. ADDITIONAL NOTES :

O617&O717 - 265 LAND UNIT : Ha.3.3.4 Mapsheet : 0717 LREF-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Hq.1.3.3 -H&3.3.4 . Mu.2.2.4

<300m

mtm

1. LAND UNIT : Ha.3.3.4 Complex hilly relief and special features, intermediate tuffs, steep to very steep slopes (>25Z), extremely dissected 2. MAP SHEET : 0717. 3 AREA : 22.1 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 11 . /8348-153 9. RADAR : STAR-1/250/88/0717-3 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology andesitic tuffs, c. Formation : Tmvak , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE :moist primary lowland forest, bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence ; Common b. Evidence : Gulleys 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 150 m Maximum : 350 m Range : 175 - 300 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a 14a | 14b |19 |20 | 21b| 22b | 22c | 22dl | 22d2 | 22el | 23b |j 23c | 23d | 23 er 1 24 1 25 | rate : 2 | 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 | 2 | 2 | 2 1! 2 .1 | 2 |1 2 1 2 1 2 1 2 |

28. REPRESENTATIVE PROFILES: not available

O617&O717 - 266 Page 2 LAND UNIT : Ha.3.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : . Middle slopes Lower slopes c. X of Land Unit : 60* WX X X SLOPES dl. Steepness : 25 - 75* 25 - 55Z d2. Slope length : * 500 m > 500 m d3. Slope curvature : Straight . Straight -- -- SOILS el. USDA Class : dystropepts hapludults e2. Z Facet : 1001 ' 100Z ' X X

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Medium Medium subsoil: Fine Medium c. Depth: peatsoil: mineralsoil: Very deep Deep d. Drainage : Moderately well Moderately well NUTRIENTS : e. Exch. K: topsoil: subsoil: t. Total K2O: topsoil: subsoil-: g. Avail. P: method: topsoil: subsoil: h. Total P: topsoil: subsoil: OTHERS : i. CEC pH 7 topsoil: subsoil: J. Reaction: topsoil: subsoil: k. Al sat. topsoil: subsoil: 1. Al toxicity : -- m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : q. Organic matter (X) : — — — ;— r. TEB (meq/100 g) • : s. Total anal, profiles: 0 0 0 0

f. LAB CHECK : No No

27. ADDITIONAL NOTES ' :

0617&0717 - 267 LAND UHU : Hqk.3.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Pfk.5.2 -Hqk.3J.4- Pik. ton calcareous material, 5.2 badland - tevere eroded' / *.?K

<3O0m

1. LAND UNIT : Hqk.3.3.4 Complex hilly relief and special features, coarse felsic sedimentary and soft calcareous rocks, steep to very steep slopes (>253E), extremely dissected 2. MAP SHEET : 0717 3. AREA : 98.2 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 1001 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 2 /8323-179 9. RADAR : STAR-1/250/88/0717-3 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering : Partial b. Lithology : marly clay, sandstone, c. Formation : Tmts , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : , bush, scrub Area used : 0 I 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Various 17. TERRAIN : Hilly >16Z, 51-300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 100 m Maximum : 400 m Range : 200 - 350 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 2*. VALLEY FLOOR Width : Very narrow 23. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25 |

1 | 1 | 2 | 2 | 2 | 2 | 1 | .1 2 | 2

28. REPRESENTATIVE PROFILES: ite/ / /89/KR/0717/23/ /083/ ite/ /89/CD/0717/42/ /121/ ite/ / /88/CD/0717/23/ /066/ ite/ /89/KR/0717/23/ /075/

0617&0717 - 268 Page 2 LAND UNIT : Hqk.3.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes c. X of Land Unit : 70Z 301 Z X SLOPES dl. Steepness : 25 - 55* 25 - 551 d2. Slope length : 201 - 500 m 101 - 200 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : troporthents eutropepts 02. I Facet : 1001 1001 X X

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents eutropepts

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately coarse Fine c. Depth: peatsoil: mineralsoil: Moderately shallow Deep d. Drainage : Somewhat exessively Somewhat exessively NUTRIENTS : : e. Exch. K: topsoil: — Low subsoil: — Low f. Total K2O: topsoil: — High subsoil: — High g. Avail. P: method: — Olsen topsoil: Very high — -- subsoil: Very high h. Total P: topsoil: -- High subsoil: --• High OTHERS : • i. CEC pH 7 topsoil: — High subsoil: — High j. Reaction: topsoil: Moderately alkaline Neutral subsoil: Moderately alkaline Neutral k. Al sat. topsoil: subsoil: 1. Al toxicity : m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 36 cm 79 cm q. Organic natter (X) : — 2.2 r. TEB (meq/100 g) : — 28.2 s. Total anal, profiles: 0 4 0 0

t. LAB CHECK : No Yes

27. ADDITIONAL NOTES : The soil data of Troporthents are extrapolated from Hqk.1.3.4

0617&0717 - 269 LAND UNIT : Hu.3.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION

Hu.3.3.4 — ?, | Undif ferentiated metasedimentary rocks ;

<300m

1. LAND UNIT : Hu.3.3.4 Complex hilly relief and special features, undifferentiated sedimentary rocks, steep to very steep slopes (>25Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 180.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 18 /8319-169, 14S /8319-97 9. RADAR : STAR-1/250/88/0717-4/5 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Llthology : claystone, clay, sandstone c. Formation. : Puk , Put 12. HATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : River 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE ; secondary forest, bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Gulleys 17. TERRAIN : Hilly >16Z, 51-300 m 18. FLAN/ Dominant: Not elongated and random PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 150 m Maximum : 300 m Range : 175 - 275 m 21. DRAINAGE a. Pattern: Complex b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a I 14a I 14b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22el I 23b | 23c I 23d I 23er | 24 | 25 rate :l|l|l|l|2|2 2 | 2| 1 |l|2|

28. REPRESENTATIVE PROFILES: ity/ / /88/KR/0717/54/ /075/ uda/ /88/JH/0.717/53/ /160/ uda/ / /87/KR/0717/53/ /114/

0617&0717 - 270 Page 2 LAND UNIT : Hu.3.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. X of Land Unit 70Z 30* SLOPES dl. Steepness 25 - 551 25 - 55Z d2. Slope length 201 - 500 m 50 - 100 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. I Facet 1001 1001

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Fine Moderately coarse subsoil: Fine Moderately fine c. Depth: peatsoil: mineralsoil: Deep Very deep d. Drainage : Somewhat exessively Well drained NUTRIENTS : e. Exch. K: topsoil: Very low subsoil: Very low f. Total K20: topsoil: Low Very low subsoil: Low Very low g. Avail. P: method : Bray.I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Low Low subsoil: Low Low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low J. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strung acid k. Al sat. topsoil: Very high ' Very high subsoil: Very high Very high 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant . n. Salinity (ec) : Salt free Rait. free o. Other toxicity : p. Root obstr. layer : q. Organic matter (Z) : 0.7 0.9 r. TEB (meq/100 g) : 0.3 0.3 s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES

O617&O717 - 271 LAND UNIT : Ma.2.2.3 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Qd. > 1.3.3 older volcanic rocks c .4. 2

> 300 in

ifif T »*•''t •*.: •"•-V - • Î* '.' -*»-'-*.r-»• • * » ƒ••-,'; v • «**- «'M

1. LAND UNIT : Ma.2.2.3 Mountains, intermediate tuffs, steep to very steep slopes (25-75Z), stronngly dissected 2. MAP SHEET : 0617 3 AREA : 376.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85, 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0717-4 10. PARENT MATERIAL 11. ROCK OUTCROP : 31 a.' Weathering Partial b. Lithology others, , c. Formation : Tmvak , Tmvna 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE :secondary forest Area used : 0 X 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Vario 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of ara crested/peaked ' PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : Medium 20. ALTITUDE Minimum : 250 m Range : 500 - 1000 m Maximum :1315 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a I 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 I 22el | 23b | 23c | 23d | 23er | 24 1 25 | rate : 1 | 1 1 1 1 1 1 1 1 2 1 2 1 2 | 2 ,1 2 | 2 | 1 1 1 1 1 1 1 1 1 1 1 1 2 |

28. REPRESENTATIVE PROFILES: ith/ / /89/YB/0617/62/ /157/ ith/ /89/YM/0617/62/ /120/ ith/ / /88/MR/0617/64/ /055/ uda/ /88/AB/0717/53/ /003/

O617&O717 - 272 Page 2 LAND UNIT : Ma.2.2.3 Mapshoet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and middle slopes Lower slopes c.' X of Land Unit 60Z 40Z 0Z SLOPES dl. Steepness 25 - 75Z 25 - 75Z d2. Slope length > 500 m • 201 - 500 m d3. Slope curvature Straight ' Straight SOILS el. USDA Class humitropepts hapludults e2. X Facet 100Z 100Z 0Z

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts hapludults

b. Texture: topsoil: Fine Fine subsoil: Fine Moderately fine c. Depth: peatsoil: mineralsoll: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS :— e. Exch. K: topsoil: Low Low subsoil: Low Very low f. Total K20: topsoil: Low Low' subsoil: Very low Low g. Avail. F: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total F: topsoil: Medium Low subsoil: Low Low OTHERS : i. CEC pH 7 topsoil: Medium Medium subsoil: Low Low J. Reaction: topsoil: Very strong acid Strong acid subsoil: Very strong acid Strong acid k. Al sat. topsoil: Very high Medium subsoil: Very high Medium 1. Al toxicity : Yes No m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity p. Root obstr. layer : 100 cm q. Organic matter (Z) : 4.8 1.8 r. TEB (meq/100 g) : 0.1 1.1 s. Total anal, profiles:

t. LAB CHECK : Yes

27. ADDITIONAL NOTES : Hapludults extrapolated from Ma.2.2.4

0617&0717 - 273 LAND UNIT : Mfq.2.2.3 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE CROSS SECTION :

-Mfq.2.2.*- Mq.2.2.4. consolidtted wdimentary rock«

> 300 m

1. LAND UNIT : M£q.2.2.3 Mountains, fine and coarse felsic sedimentary rocks, steep to very steep slopes (25-751), strongly dissected 2. MAP SHEET : 0717 3. AREA : 283.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100I 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/59/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 12S /8348-199, 14S /8323-39 9. RADAR : STAR-1/250/88/0717-2 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering : Partial b. Lithology : claystone, sandstone, c. Formation : Tmbal , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, secondary forest, logged forest, bush, scrub Area used : 0 I 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Various 17. TERRAIN : Mountanious >16Z, >300 m • 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : High 20. ALTITUDE Minimum : 400 m Range : 500 - 1100 m Maximum : 1200 m 21. DRAINAGE a. Pattern: Complex 24. VALLEY FLOOR Width : Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys: None b. Interfluves : None 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 I 20 | 21b I 22b | 22c I 22dl | 22d2 | 22el 1 23b | 23c I 23d | 23er 1 24 1 25 1 rate : 1 1 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 1 2 1 1 1 1 1

28. REPRESENTATIVE PROFILES: ith/ / /89/CD/0717/41/ /083/ uda/ /87/JH/0617/63/ /091/

0617&O717 - 274 Page 2 LAND UNIT : Mfq.2.2.3 Mapshoet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 2 b. Description : Middle slopes Lower slopes Upper slopes e. Z of Land Unit . : 60Z 251 151 Z SLOPES dl. Steepness : 25 - 75X 25 - 55Z 25 - 55Z d2. Slope length : > 500 m 201 - 500 m 101 - 200 m d3. Slope curvature : Straight Convex Convex . -- SOILS el. USDA Class : dystropepts hapludults humitropepts e2. X Facet : 100Z 1001 100Z Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults humitropepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Moderately fine Coarse Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep Moderately shallow d. Drainage : Well drained Well drained Somewhat -exessively NUTRIENTS : '• e. Exch. K: topsoil: — Very low High subsoil: — Very low Medium f. Total K2O: topsoil: — Very low High subsoil: — Very low Medium g. Avail. P: method: — Bray I Bray I topsoil: ' Very low Very low subsoil: Very high Very low h. Total P: topsoil: — Very low . High subsoil: — High Medium OTHERS : i. CEC pH 7 topsoil: — Very low High subsoil; — Very low High J. Reaction: topsoil: -- Very strong acid -Very strong acid subsoil: — Exessively acid Very strong acid k. Al sat. topsoil: — Very high Low subsoil: — High Medium 1. Al toxicity : — Yes Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free 0. Other toxicity : p. Root obstr. layer : — — 40 cm q. Organic matter (Z) : — 0.6 5.1 r. TEB (meq/100 g) : — 0.4 10.1 s. Total anal, profiles: 0 110

f. LAB CHECK : No Yes Yes

27. ADDITIONAL NOTES : The soil data of Hapludults dan Humitropepts are extrapolated from Mq.2.2.3 and Mfq.2.2.4

0617&0717 - 275 LAND UNIT : Mq.2.2.3 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Mq.2.2.3

> 300 m

Consolidated sedimentary rocks

1. LAND UNIT : Mq.2.2.3 Mountains, coarse felsic sedimentary rocks, steep to very steep slopes (25-75X), strongly dissected 2. MAP SHEET : 0617 3 AREA : 376.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* S. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 9S /8347-53 , T2 /8323-177 8. RADAR : STAR-1/250/88/0617-4/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 101 a. Weathering Partial b. Lithology : sandstone, , c. Formation : Tmba , 12. WATER a. Quality ; Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 1«. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary submontane forest Area used : 0 X 16. ACCELERATED EROSION a. Occurrence : Comnon b. Evidence 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and random > 601 of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : Medium 20. ALTITUDE Minimum : 200 m Maximum : 780 m Range : 350 - 750 m 21. DRAINAGE a. Pattern: Dendritic b. Density : Moderately high 2«. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Intetfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | l«b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22a 1 | 23b | 23c I 23d I 23er | 24 | 25 rate :l|l|l|l|2|2 2 I 2 I 2 | 2

28. REPRESENTATIVE PROFILES: uda/ / /88/JH/0617/63/ /091/ eot/ /87/TB/0617/64/ /072/

0617&0717 - 276 Page 2 LAND UNIT : Hq.2.2.3 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS . FACETS a. Identifier : 1 b. Description Crest and upper slopes Middle slopes Lower slopes c. ! of Land Unit 55* 301 15Z SLOPES dl. Steepness 25 - 55* 25 - 75Z 25 - 55Z d2. Slope length 201 - 500 m 201 - 500 m 101 - 200 m d3. Slope curvature Convex Straight Straight SOILS el. USDA Class troporthents dystropepts hapludults e2. I Facet 100J 100Z 1002

23. SOIL CHARACTERISTICS a.' USDA Great Group : troporthents dystropepts hapludults

b. Texture: topsoil: Coarse Fine Fine subsoil: Moderately coarse Fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep Very deep d. Drainage • : Exessively drained Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Very low subsoil: Very low Very low f. Total K2O: topsoil: Very low Very low subsoil : Very low Very low g. Avail. P: method : Bray I Bray I topsoil: Low Very low subsoil: Very low Very high h. Total P: topsoil: Very low Very low subsoil: Very low High OTHERS : i. CEC pH 7 topsoil: Low Very low subsoil: Low Very low J. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Exessively acid k. Al sat. topsoil: Medium Very 'high subsoil: Medium High 1. Al toxicity : Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layex : q. Organic matter (Z) : 2.6 0.6 r. IEB. (meq/100 g) : 0.8 0.4 s. Total anal, profiles: 1 0

t. LAB CHECK : Yes No

27. ADDITIONAL NOTES : The soil data of Troporthents are extrapolated data from Mq.2.3.4

0617*0717 - 277 LAND UNIT : Mg.2.2.3 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR ' 08/12/90

HAP IMAGE : CROSS SECTION :

\Hg. 1.3.4 Hs.1.3.4

> 300 in

. \ V / - *. ':r. ** ** ;"• ; •'T-*; * * ;*• t• \

1. LAND UNIT : Mg.2.2.3 Mountains, acid plutonic rocks, steep to very steep slopes (25-75Z), strongly dissected 2. MAP SHEET : 0617 3 AREA : 213.7 km2 4. OCCURRENCE by.PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 9. RADAR STAR-1/250/88/0617-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology granite, , c. Formation Tmti 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE moist primary lowland forest, bush, scrub, mixed gardens of fruit trees, rubber Area used 20 Z 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Various 17. TERRAIN Mountanipus >16Z, >300 m 18. PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very high b. Variability : High 20. ALTITUDE Minimum 600 m Range 650 - 1000 m Maximum :1100 m 21. DRAINAGE a. Pattern Dendritic 24. VALLEY FLOOR Width Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys None b. Interfluves : Small blocks 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c I 22dl I 22d2 | 22el | 23b I 23c | 23d | 23er | 24 | 25 rate : 1 I 2 I 2 I

28. REPRESENTATIVE PROFILES: uda/ / /89/JH/0717/64/ /100/ ity/ /89/YH/0617/62/ /137/

0617&0717 - 278 Page 2 LAND UHU : Mg.2.2.3 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 60Z 401 01 SLOPES dl. Steepness 25 - 75Z 25 - 55Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. Z Facet 1001 1001

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: . topsoil: Moderately fine Coarse subsoil: Moderately fine Coarse c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Very low subsoil: Low Medium f. Total K2O: topsoil: Low Very low subsoil: Very low Low g. Avail. P: method: Bray I Bray I topsoil: High High subsoil: Very low Medium h. Total P: topsoil: Low Very high subsoil: Very low Very high OTHERS : i. CEC pH 7 topsoil: Low Very low subsoil: Low Low j. Reaction: topsoil: Very strong acid Very strong acid subsoil: Strong acid Moderately acid k. Al sat. topsoil: Very high Medium subsoil: Very high None, very low 1. Al toxicity : — No m.- Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 107 cm q. Organic matter (Z) : 3.8 0.5 r. TEB (meq/100 g) : 0.5 0.6 s. Total anal, profiles:

f. LAB CHECK Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated from LU Mg.2.2.4

0617&0717 - 279 LAND UNIT : Mu.2.2.3 Mapsheet.: 0717 LREP-SDBM, CSR-BOGOR 08/12/80

MAF IMAGE : CROSS SECTION :

r Mu.2.2.3

> 300m

1. LAND UNIT : Mu.2.2.3 Mountains, undifferentiated sedimentary rocks, steep to very steep slopes (25-75X), strongly dissected 2. MAP SHEET : 0717 3 AREA : 269.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 6. AERIAL PHOTOGRAPHS 1:100.000 US /8348-153, 18 /8319-167 S. RADAR STAR-1/250/88/0717-3/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0J a. Weathering Partial b. Lithology claystone, gravel, c. Formation Puku , Put 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 1«. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE moist primary submontane forest, bush, scrub Area used 0 J 16. ACCELERATED EROSION a. Occurrence Extensive b. Evidence : Various 17. TERRAIN Mountanious >16Z, >300 m 18. PLAN/ Dominant Not elongated and random > 602 of a crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very high b. Variability : High 20. ALTITUDE Minimum 400 m Range 600 - 1200 m Maximum :1310 m 21. DRAINAGE a. Pattern Complex 24. VALLEY FLOOR Width Very narrow b. Density : Moderately high 25. FRAGMEN a. Valleys None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d I 23er 24 | 25 rate :l|l|l|l|2|2 2|

28. REPRESENTATIVE PROFILES: uda/ / /89/LH/0717/14/ /090/ ity/ /88/YM/0717/51/ /040/

'0617&0717 - 280 Page 2 LAUD UHIT : Mu.2.2.3 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. X of Land Unit 70? 301 SLOPES dl. Steepness 25 - 75Z 25 - 75Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. I Facet 1001 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately coarse Moderately fine subsoil: Medium Moderately fine c. Depth: peatsoil: mineralsoil: Moderately deep Deep d. Drainage : Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Low Very low f. Total K2O: topsoil: Low Medium subsoil: Low Low g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Medium Medium subsoil: Low Medium OTHERS : i. CEC pH 7 topsoil: Very high High subsoil: Very high Medium j. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Exessively acid k. Al sat. topsoil: High High subsoil: Very high ' Very high 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 55 cm 84 cm q. Organic matter (I) : 3.6 3.5 r. TEB (meq/100 g) : 0.9 1.5 s. Total anal, profiles:

£. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated data from Mu.2.2.4

0617&0717 - 281 LAND UNIT : Ma.2.2.« Mapsheot : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Ma.2.2.4 older volcanic rocks

>300m

1. LAND UNIT : Ma.2.2.4 Mountains, intermediate tuffs, steep to very steep slopes (25-75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 432.4 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS : 1:100.000 14S /8323-051 9. RADAR : STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 1Z a. Weathering : Partial b. Lithology : others, , c. Formation : Tmvak , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sad.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Various 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : Medium 20. ALTITUDE Minimum : 400 m Range : 500 - 1000 m Maximum : 1400 m 21. DRAINAGE a. Pattern: Dendritic 24. VALLEY FLOOR Width : Very narrow b. Density : High 25. FRAGMEN a. Valleys: None b. Interfluves : None 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er | 24 | 25

ate :l|l|l|l|2|2| 2 | 3 | 2 2| I 2

28. REPRESENTATIVE PROFILES: 1th/ / • /89/YM/0717/41/ /074/ uda/ /88/AB/0717/53/ /003/ uha/ / /88/AB/0717/53/ /004/ uha/ /88/KR/0717/53/ /105/

O617&O717 - 282 Page 2 LAND UNIT : Ma.2.2.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2a 2b b. Description Upper and middle slopes Lower slopes Lower slopes c. Z of Land Unit 60Z 40Z 40Z SLOPES ' dl. Steepness 25 - 55Z 25 - 55Z 25 - 55Z d2.. Slope length > 500 m 201 - 500 m 201 - 500 m d3. Slope curvature Straight Straight Straight SOILS el. USDA Class humitropepts hapludults haplohumults e2. Z Facet 100Z 60Z AOZ

23. SOIL CHARACTERISTICS a. USDA Great Group : humitropepts hapludults haplohumults

b. Texture: topsoil: Fine Fine Fine subsoil: Fine Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep Extremely deep d. Drainage : Well drained Well drained Well drained NUTRIENTS : e. Exch. K: topsoi1; Medium Low subsoil: Medium Very low Very low f. Total K20: topsoil: Low Low Very low subsoil: Low Low Low g. Avail. P: method: Bray I Bray I Bray I topsoil: Very low Very low Very low subsoil: Very low Very low Very low h. Total P: topsoil: Low Low Very low subsoil: Very low Low Medium OTHERS : i. CEC pH 7 topsoil: Low Medium Very low subsoil: Low Low Low j. Reaction: topsoil: Very strong acid Strong acid Very strong acid subsoil: Very strong acid Strong acid Exessively acid k. Al sat. topsoil: High Medium Medium subsoil: High Medium Very high 1. Al toxicity : Yes No Yes m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity

f. LAB CHECK Yes

27. ADDITIONAL NOTES

0617&0717 - 283 LAND UHU : Mfq.2.2.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Mfq.2.2.4

> 300 m

1. LAND UNIT : Mfq.2.2.4 Mountains, fine and coarse felsic sedimentary rocks, steep to very steep slopes (25-75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 379.3 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-175, 12S /8348-199 9. RADAR : STAR-1/250/88/0717-2/5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology claystone, sandstone, c. Formation Tms , Tmbal 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, secondary forest, logged forest, bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Gulleys 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : High 20. ALTITUDE Minimum : 300 m Maximum : 845 m Range : 400 - 800 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a I 14b | 19' I 20 | 21b | 22b I 22c | 22dl | 22d2 | 22el | 23b I 23c | 23d I 23er | 24 | 25

«te :l|l|l|l|2|2| 2 | 2 | 2 | 2| l| l|l|l|l| 1 | 1 |. 1

28. REPRESENTATIVE PROFILES: ity/ / /87/KR/0717/14/ /089/ ith/ /8E/CD/0717/41/ /083/ uda/ / /87/JH/0617/63/ /091/

O617&O717 - 284 Page 2 LAND UNIT : Mfq.2.2.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description : Middle slopes Lower slopes Upper slopes c. I of Land Unit : 60Z 25Z 15Z SLOPES dl. Steepness : 25 - 75Z 55 - 75Z 25 - 55Z d2. Slope length : 201 - 500 m 101 - 200 m 101 - 200 m d3. Slope curvature : Straight Straight Convex SOILS el. USDA Class : dystropepts hapludults humitropepts e2. Z Facet : 100Z 100Z ÎOOZ

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults humitropepts

b. Texture: topsoil: Moderately fine Fine Fine subsoil: Moderately fine Coarse Fine c. Depth: peatsoil: mineralsoil: Very deep Very deep Moderately shallow d. Drainage : Well drained Well drained Somewhat exessively NUTRIENTS : e. Exch. K: topsoil: Low Very low High subsoil: Very low Very low Medium f. Total K20: topsoil: Very low Very low High subsoil: Very low Very low Medium g. Avail. P: method: Bray I Bray I Bray I topsoil: Very low Very low Very low subsoil: Very low Very high Very low h. Total P: topsoil: Very low Very low High subsoil: Very low High Medium OTHERS : i. CEC pH 7 topsoil: High Very low High subsoil: Medium Very low High j. Reaction: topsoil: Very strong acid Very strong acid Very strong acid subsoil: Very strong acid Exessively acid Very strong acid k. Al sat. topsoil: High Very high Low subsoil: High High Medium 1. Al toxicity : Yes Yes Yes m. Acid sulph. pot. : Not relevant • Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o. Other toxicity : p. Root obstr. layer 135 cm 40 cm q. Organic matter (Z) : 3.5 0.6 5.1 r. TEB (meq/100 g) : 1.0 0.4 10.0 s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES : The-soil data of Hapludults are extrapolated data from Mq.2.2.3

O617&O717 - 285 LAND UNIT : Mq.2.2.4 Mapsheet : 0717 LBEP-SDBM, CSR-BOGOR 0B/12/90

MAP IMAGE : CROSS SECTION :

Au. -*a Consolidated sedimentary rocki 1.2 mvmmmmet 25 >300m

.•"'.;•-* »•.'•.': "îfjl

1. LAND UNIT ': Mq.2.2.4 Mountains, coarse felsic sedimentary rocks, steep to very steep slopes (25-75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 171.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 B. AERIAL PHOTOGRAPHS 1:100.000 12S /8348-197 9. RADAR STAR-1/250/88/0717-2 10. PARENT MATERIAL 11. ROCK OUTCROP : 5Z a. Weathering ; Partial b. Lithology : sandstone, , c. Formation : Tmsk • , 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES ; None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moi'st primary submontane* forest, bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Common b. Evidence : Gulleys 17. TERRAIN : Mountanious >16X, >300 m 18. PLAN/ Dominant: Not elongated and random > 60Z of a crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : High 20. ALTITUDE Minimum : 350 m Maximum : 850 m Range : 400 - 800 m 21. DRAINAGE a. Pattern: Dendritic b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12aI 14a | 14b | 19 | 20 | 21b 1 22b | 22c | 22dl | 22d2 | 22e 1 | 23b I 23c | 23d I 23er 1 24 1 251 rate : 1 1 1 1 1 1 1 1 2 1 2 1 2 1 2 | 2 1 2 | 2 | 1 1 1 1 1 1 1 1 1 1 1 1 1 1

28. REPRESENTATIVE PROFILES: eot/ / /87/TB/0617/64/ /072/ ity/ /89/CD/0717/13/ /133/

0617&0717 - 286 Page 2 LAND UNIT : Mq.2.2.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Crest,upper&middle slopes Lower slopes c. Z of Land Unit 60Z 40Z SLOPES dl. Steepness : 55 - 75Z 25 - 55: d2. Slope length : 201 - 500 m 201 - 500 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : troporthents dystropepts e2. Z Facet : 100Z • 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents dystropepts

b. Texture : topsoi1: Coarse Moderately fine subsoil: Moderately coarse Moderately fine c. Depth : peatsoi1: mineralsoil: Very deep Deep d. Drainage : Exessively drained Well drained NUTRIENTS : -. e. Exch. K: topsoi1: Low Low subsoil: Very low Very low f. Total K20: topsoi1: Very low Medium subsoil: Very low Low g. Avail. P: method: Bray I Bray1 I topsoil: Low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Low . subsoil: Very low Medium OTHERS : i. CEC pH 7 topsoil: Low High subsoil: Low Very high j. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al. sat. topsoil: Medium Very high subsoil: Medium Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 80 cm q. Organic matter (Ü) : 2.6 1.9 r. TEB (tneq/100 g) : 0.6 0.8 s. Total anal, profiles: 1

f. LAB CHECK

27. ADDITIONAL NOTES : The soil data o£ Troporthents are extrapolated data from Mq.2.3.4

O617&O717"- 287 LAND UNIT : Mg.2.2.4 Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

-Mg.2.2.4- granite

> 300 m

1. LAND UNIT : Mg.2.2.4 Mountains, acid plutonic rocks, steep to very steep slopes (25-752), extremely dissected 2. MAP SHEET : 0617 3 AREA : 244.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 14S /S323-59 9. RADAR STAR-1/250/88/0717-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Llthology granite, , c. Formation Mpisl , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. FLoodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE moist primary lowland forest Area used 0 1 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Gulleys 17. TERRAIN Mountanious >16Z, >300 m 18. PLAN/ Dominant Not elongated and random > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very high b. Variability : Medium 20. ALTITUDE Minimum 400 m Range 500 - 900 m Maximum : 1000 m 21. DRAINAGE a. Pattern Dendritic 24. VALLEY FLOOR Width Very narrow b. Density : High 25. FRAGMEN a. Valleys None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b I 12a I 14a I 14b | 19 | 20 | 21b | 22b I 22c I 22dl | 22d2 | 22el | 23b I 23c I 23d | 23er | 24 | 25

1 | 2 | 2 | 2 | 2 | 2 I 1 | 1 | 1 | 1 I 2

28. REPRESENTATIVE PROFILES: ity/ / /89/YH/0617/62/ /137/ uda/ /89/CD/0617/12/ /136/

0617&0717 - 288 Page 2 LAND UNIT : Mg.2.2.4 Mapsheet : 0617 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2 b. Description : Upper and middle slopes Lower slopes c. Z o£ Land Unit : 70Z 30Z OX X SLOPES dl. Steepness : 25 - 75Z 25 - 75Z d2. Slope length : > 500 m 201 - 500 m d3. Slope curvature : Straight Straight SOILS el. USDA Class : dystropepts hapludults e2. X Facet : 100Z 100Z 0Z Z

23. SOIL CHARACTERISTICS «. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: ------'-- mineralsoil: Very deep Very deep d. Drainage : Moderately well Well drained NUTRIENTS : . e. Exch. K: topsoil: Low Medium subsoil: Low Low t. Total K20: topsoil: Low Very high subsoil: Very low • Very high g. Avail. P: method: Bray I . Bray I topsoil: High Very low subsoil: Very low Very low h. Total P: topsoil: Low Low subsoil: Very low Low -- T-

OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low j. Reaction: topsoil: Very strong acid Very strong acid subsoil: Strong acid Strong acid k. Al sat. topsoil: Very high Low subsoil: Very high . Medium 1. Al toxicity : Yes — ' ' m. Acid sulph. pot. :• Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : • p. Root obstr. layer : 107 cm 130 cm q. Organic matter (Z) : 3.8 2.5 r. TEB

f. LAB CHECK : Yes • Yes -- T-

27. ADDITIONAL NOTES : The soil data of Hapludults are extrapolated data from Mg.2.3.4

O617&O717'- 289 LAND UNIT : Mu.2.2.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

Mu.2.2.4 Hq. 1.2.2 metasedimentary

> 300 m

1. LAND UNIT : Mu.2.2.4 Mountains, undifferentiated sedimentary rocks, steep to very steep slopes (25-752), extremely dissected 2. MAP SHEET : 0717 3. AREA : 387.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100* 5. STATUS IDENTIFIERS : Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES : 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 18 /8319-171, 18 /8319-169 9. RADAR STAR-1/250/88/0717-5 - , 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering : Partial b. Lithology : claystone, gravel, sandstone c. Formation : Put 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, secondary forest, bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Extensive b. Evidence : Gulleys 17. TERRAIN : Mountanious >16Z, >300 m IS. FLAN/ Dominant: Not elongated and random > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude : Very high b. Variability : High 20. ALTITUDE Minimum : 400 m Range : 550 - 1350 m Maximum :1450 m 21. DRAINAGE a. Pattern: Complex 24. VALLEY FLOOR Width : Very narrow b. Density : High 25. FRAGMEN a. Valleys: None b. Interfluves : None 26. RELIABILITY (1- reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b | 22b I 22c | 22dl | 22d2 I 22el | 23b | 23c I 23d | 23er 24 | 25

rate :l|l|l|l|2|2| 2 | 2 1 I 1

28. REPRESENTATIVE PROFILES: udb/ / /88/JH/0717/53/ /157/ uda/ /88/JH/0717/53/ /155/ ity/ / /88/YM/0717/51/ /040/

O617&O717 - 290 Page 2 LAND UNIT : Mu.2.2.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2a 2b b. Description Upper and middle slopes Lower slopes Lower slopes 'c. Z of Land Unit 601 402 40Z SLOPES dl. Steepness 25 - 75Z . 25 - 75Z ' 25 - 55Z d2. Slope length > 500 m 201 - 500 m 101 - 200 m d3. Slope curvature Straight Straight Straight SOILS el. USDA Class dystropepts hapludults paleudults e2. I Facet 100Z 60Z 40Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults paleudults

b. Texture: topsoil: Moderately coarse Fine Fine subsoil: Medium Fine Fine c. Depth: peatsoil: roineralsoil: Moderately deep Very deep Extremely deep d. Drainage : Well drained Well drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Very low subsoil: Low Very low Low f. Total K20: topsoil : Low Very low Very low subsoil: Low Very low Very low g. Avail. P: method : Bray I Bray I Bray I topsoil: Very low Very low Very low subsoil: Very low Very low Very low h. Total P: topsoil: Medium Very low Very low subsoil: Low Very low Very low OTHERS : i. CEC pH 7 topsoil: Very high Very low Very low subsoil: Very high Low Very low j. Reaction: topsoil: Exessively acid Very strong acid Very strong acid subsoil: Exessively acid Very strong acid Very strong acid k. Al sat. topsoil: High High Medium subsoil: Very high Medium High 1. Al toxicity : Yes No No m. Acid sulph. pot. : Not relevant Not relevant Not relevant n. Salinity (ec) : Salt free Salt free Salt free o.'Other toxicity p. Root obstr. layer : 55 cm ' 140 cm q. Organic matter (Z) : 3.6 0.9 0.4 r. TEB (meq/100 g) : 0.9 0.6 0.6 s. Total anal, profiles:

f. LAB CHECK Yes

27. ADDITIONAL NOTES

06176.0717 - 291 LAND UNIT : Mq.2.3.3 . Mapsheet : 0617 LREP-SDBM, CSR-BOGOR 08/12/90

HAF IMAGE : CROSS SECTION :

> 300 in

1. LAND UNIT : Mq.2.3.3 Mountains, coarse felsic sedimentary rocks, abrupt slopes, scarps (slopes >75I), strongly dissected 2. MAP SHEET : 0617 3 AREA : 20.5 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 01/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8.'AERIAL PHOTOGRAPHS 1:100.000 18 /8319-171, 18 /8319-74 9. RADAR STAR-1/250/88/0617-5 10. PARENT MATERIAL 11. ROCK OUTCROP : 0Z a. Weathering Partial b. Lithology sandstone, , c. Formation : Tmsk , 12. WATER a. Quality : Fresh b. Source : -Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : secondary forest, bush, scrub, alang-alang Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Localised b. Evidence : Various 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and parallel > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: High b. Variability : Medium 20. ALTITUDE Minimum : 400 m Maximum : 700 m Range : 500 - 600 m 21. DRAINAGE a. Pattern: Parallel b. Density : Moderate 24. VALLEY FLOOR Width : Very narrow 25. FSAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 | 20 | 21b | 22b | 22c | 22dl | 22d2 | 22el | 23b | 23c | 23d | 23er I 24 I 25 I rate : 1 2 | 2 1 | 1 I 2.1 2 |

28. REPRESENTATIVE PROFILES: ity/ / /89/CD/0717/13/ /131/ eot/ /87/TB/0617/64/ /072/

0617&0717 - 292 Page 2 LAND UNIT : Mq.2.3.3 Mapsheet : 0617 08/12/80

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 602 401 SLOPES dl. Steepness > 75Z > 75Z d2. Slope length 201 - 500 m 201. - 500 in d3. Slope curvature Convex Straight SOILS el. USOA Class troporthents dystropepts e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents dystropepts

b. Texture: topsoil: Coarse Fine subsoil: Moderately coarse Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Exessively drained Well drained NUTRIENTS : e. Exch. K: \topsoil: Low Low subsoil: Very low Low f. Total K2O: topsoil: Very low Medium subsoil: Very low Medium g. Avail. F: method : Bray I Bray I topsoil: Low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Medium subsoil: Very low Medium OTHERS : i. CEC pB 7 topsoil: Low High subsoil: Low High J. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Medium Very high subsoil: Medium Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ac) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 60 cm q. Organic matter (Z) : 2.6 1.9 r. TEB (meq/100 g) : 0.6 1.4 s. Total anal, profiles:

t. LAB CHECK Yes Yes

27. ADDITIONAL NOTES : The soil data are Extrapolated data from Mq.2.3.4

O617&O717 - 293 LARD UNIT : Ma.2.3.4 Mapsheet : 0717 . ..LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

•Ma.2.3.4 '

Older volcanic rocks, locally having neck/ptug

1. LAND UNIT : Ma.2.3.A Mountains, intermediate tuffs, abrupt slopes, scarps (slopes >75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 1016.6 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 02/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 T2 /8323-171, IIS /8348-153 S. RADAR STAR-1/250/88/0717-2 10. PARENT MATERIAL 11. ROCK OUTCROP .: 21 a. Weathering ; Partial b. Lithology : others, , c. Formation : Tmvak , Tmvna 12. WATER a. Quality : Fresh b. Source : Rain, Perennial river 13. FISHERIES : None 1*. RIVERS a. Floodrisk water : None b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, bush, scrub Area used : 0 1 16. ACCELERATED EROSION a. Occurrence : None b. Evidence : Various 17. TERRAIN : Mountanious >16l, >300 m 18. PLAN/ Dominant: Not elongated and parallel > 60X of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : High 20. ALTITUDE Minimum : 400 m Range : 750 - 1500 m Maximum :2000 m 21. DRAINAGE a. Pattern: Parallel 24. VALLEY FLOOR Width : Very narrow b. Density : High 23. FRAGMEN a. Valleys: None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a | 14b | 19 I 20 | 21b| 22b | 22c | 22dl | 22d2 | 22el | 23b I 23c| 23d |I 23er 1 24 | 25 |

rate : 1 | 1 1 1 1 1 1 2 I 2 I 2 1 2 | 2 |1 2 | .2 | 1 1 1 | ' 1 1 1 1| 1 1 2 | t o

28. REPRESENTATIVE PROFILES: eot/ / /89/CD/0717/42/ /101/ ith/ /69/LH/0717/12/ /097/

0617&0717 - 294 Page 2 LAND UNIT : Ma.2.3.* Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description : Upper and mi Lower slopes c. X of Land Unit : 601 402 0Z SLOPES dl. Steepness : > 75* 55 - 75* d2. Slope length : > 500 m 201 - S00 m d3. Slope curvature : Convex Straight SOILS el. USDA Class : troporthents humitropepts e2. Z Facet : 100Z 100Z 0Z

23. SOIL CHARACTERISTICS a. USDA Great Group : troporthents humitropepts

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Fine * c. Depth : peatsoil: mineralsoil: Shallow Deep ' d. Drainage Somewhat exessively Well drained NUTRIENTS : — e. Exch. K: topsoil: Low Low subsoil: Very low Very low f. Total K20: topsoil: Low / Very low subsoil: Very low Very low g. Avail. F: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Medium Low subsoil: Low Very low OTHERS : i. CEC pH 7 topsoil: High Low subsoil: Medium Low j. Reaction: topsoil: Exessively acid Exessively acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Very high Bigh subsoil: Very high Very high 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 18 cm 100 cio q. Organic matter (Z) : 3.8 3.0 r. TEB (meq/100 g) : 1.1 0.9 s. Total anal, profiles:

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES

0617&0717 - 295 LAND UNIT : Mfq.2.3.4 Mapsheet : 0717 LREP-SOBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

-Mfq.2.3.4

> 300 in

1. LAND UNIT : Mfq.2.3.4 Mountains, fine and coarse felsic sedimentary rocks, abrupt slopes, scarps (slopes >75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 383.9 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100% 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 MS /8323-47 , 14S /8319-91 9. RADAR : STAR-1/250/88/0717-4 10. PARENT MATERIAL • 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology claystone, sandstone, c. Formation : Tms , 12. WATER a. Quality : Fresh b. Source Rain, Perennial river 13. FISHERIES : None 14. RIVERS a. Floodrisk water : None • b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, secondary forest, bush, scrub Area used : 0 X 16. ACCELERATED EROSION a. Occurrence : Extensive b. Evidence : Gulleys 17. TERRAIN : Mountanious >16J, >300 m 18. FLAN/ Dominant: Not elongated and parallel > 60Z of area crested/peaked PROFILE Included: 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : High 20. ALTITUDE Minimum : 400 m Range ' : 550 - 1400 m Maximum : 1540 m 21. DRAINAGE a. Pattern: Parallel 24. VALLEY FLOOR Width : Very narrow b. Density : High 25. FRAGMEN a. Valleys: None b. Interfluves : None 26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a I 14a | 14b | 19 | 20 | 21b I 22b I 22c | 22dl I 22d2 | 22el I 23b | 23c | 23d I 23er I 24 I 25 I

1 | 1 2 | 2 | 1 | 1 I 1 I 1 I

28. REPRESENTATIVE PROFILES: ity/ / /89/YH/0717/51/ /066/ ith/ /89/CD/0717/41/ /083/

O617&O717 - 296 Page 2 LAND UNIT : Mfq.2.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 2

b. Description : Middle and (Upper slopes c. Z of Land Unit : 85Z 1SZ SLOPES dl. Steepness : > 75Z > 75Z d2. Slope length : > 500 m 201 - 500 m d3. Slope curvature : Straight Convex SOILS el. DSDA Class : dystropepts humitropepts o2. Z Facet : 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts humitropepts

b. Texture: topsoil: Moderately fine Fine subsoil: Moderately fine Fine c. Depth: peatsoil: mineralsoil: Very deep Moderately shallow d. Drainage Well drained Somewhat exessively NUTRIENTS : — e. Exch. K: topsoil : Low High subsoil: Very low Medium f. Total K20: topsoil: Very low High subsoil: Very low Medium g. Avail. P: method: Bray I Bray I topsoil: Very low Very low subsoil: Very low Very low h. Total P: topsoil: Very low High subsoil: Very low Medium OTHERS : i. CEC pH 7 topsoil: High High subsoil: Medium High J. Reaction: topsoil: Very strong acid Very strong acid subsoil: Very strong acid Very strong acid k. Al sat. topsoil: High Low subsoil: High Medium 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 135 cm 40 cm q. Organic matter (Z) : 3.5 5.2 r. TEB (meq/100 g) : 1.0 10.1 s. Total anal, profiles: 1 1

f. LAB CHECK : Ye Yes

27.' ADDITIONAL NOTES : The soil data of Humitropepts are extrapolated data from Mfq.2.2.4

0617&0717 - 297 LAND UNIT : Mq.2.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

Mq.2.3.4

>300m

1. LAND UNIT : Mq.2.3.4 Mountains, coarse felsic sedimentary rocks, abrupt slopes, scarps (slopes >753E), extremely dissected 2. MAP SHEET : 0717 3 AREA : 220.8 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/59/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 10 /8348-143, 10 /8348-141 9. RADAR STAR-1/250/88/0717-2 10. PARENT MATERIAL 11. ROCK OUTCROP : OX a. Weathering Partial b. Lithology sandstone, , c. Formation Tmba , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE moist primary submontane forest, bush, scrub Area used OX ' • 16. ACCELERATED EROSION a. Occurrence Localised b. Evidence : Various 17. TERRAIN Mountanious >16J, >300 m 18. FLAN/ • Dominant Not elongated and parallel > 60Z of area crested/peaked PROFILE Included 19. RELIEF AMFMTUDE -à. Amplitude Very high b. Variability : High 20. ALTITUDE Minimum 400 m Maximum : 903 m Range 450 - 900 m 21. DRAINAGE a. Pattern Parallel b. Density : High 24./VALLEY FLOOR Width Very narrow 25. FRAGMEN a.'Valleys None b. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4s plausible) item | 10b | 12a 14a | 14b | 19 I 20 | 21b I 22b | 22c [I 22dl | 22d2 | 22el | 23b [I 23c i| 23d |[ 23er 1 24 1 25 | rate : 1 | 1 1- 1 1 1 1 2 1 2 I 2 1 2 | 1 |1 1 1 1 1 1 1 • 1 1 1 1 1 1 1 1 1 1 2 1

28. REPRESENTATIVE PROFILES: ity/ / /89/CD/0717/13/ /131/ eot/ /87/TB/0617/64/ /072/ ity/ / /89/LH/0717/13/ . /132/

0617&0717 - 298 Page 2 LAND UNIT : Hq.2.3.4 Mapshoet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. I of Land Unit 60Z 40Z SLOPES dl. Steepness > 75Z > 75Z d2. Slope length 201 - 500 m 201 - 500 m d3. Slope curvature Convex Straight SOILS el. USOA Class troporthents dystropepts eZ. X Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USOA Great Group : troporthents dystropepts

b. Texture: topsoil: Coarse Fine subsoil: Moderately coarse Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Moderately deep d. Drainage : Exessively drained Well drained NUTRIENTS : e. Exch. K: topsoil: Low Low subsoil: Very low Low t. Total K20: topsoil: Very low Medium subsoil: Very low Medium g. Avail. P: method : Bray I Bray I topsoil: Low Very low subsoil: Very low Very low h. Total P: topsoil: Very low Medium subsoil: Very low Medium OTHERS : i. CEC pH 7 topsoil: Low High subsoil: Low High J. Reaction: topsoil: Exessively acid Very strong acid subsoil: Exessively acid Very strong acid k. Al sat. topsoil: Medium Very high subsoil: Medium Very high 1. Al toxicity : No Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec) : Salt free Salt free - o. Other toxicity p. Root obstr. layer : 80 cm q. Organic matter (Z) : 2.6 1.9 r. TEB (meq/100 g) : 0.6 s. Total anal, profiles:

f. LAB CHECK : Yes

27. ADDITIONAL NOTES :

0617&0717 - 299 LAND UNIT : Mg. 2.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAP IMAGE : CROSS SECTION :

> 300 m

1. LAND UNIT : Mg.2.3.4 Mountains, acid plutonic rocks, abrupt slopes, scarps (slopes >75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA : 175.7 km2 4. OCCURRENCE by PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status :• Final 7. SATELLITE SCENES 128/58/08/08/85 8. AERIAL PHOTOGRAPHS 1:100.000 IIS /8348-157 9. RADAR STAR-1/250/88/0717- 10. PARENT MATERIAL 11. ROCK OUTCROP : 01 a. Weathering Partial b. Lithology granite, , c. Formation Mpisl , 12. WATER a. Quality Fresh b. Source Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water None b. Floodrisk sed.: None c. Inundation None 15. VEGETATION/LAND USE secondary forest, mixed gardens of fruit trees, rubber Area used 25 Ü 16. ACCELERATED EROSION a. Occurrence Common b. Evidence : Gulleys 17. TERRAIN Mountanious >16Z, >300 m 18. PLAN/ Dominant Not elongated and parallel > -60Z of area crested/peaked PROFILE Included 19. RELIEF AMPLITUDE a. Amplitude Very high b. Variability : High 20. ALTITUDE Minimum 600 m Range 700 - 1400 m Maximum :1413 m 21. DRAINAGE a. Pattern Parallel 24. VALLEY FLOOR Width Very narrow b. Density : High 25. FRAGMEN a. Valleys None b. Interfluves : Small blocks 26. RELIABILITY (1= reliable, 2=: probable, 3= tenable, 4= plausible) item | 10b | 12a 14a | 14b | 19 I 20 | 21b I 22b | 22c | 2Zdl | 22d2 | 22el | 23b | 23c 1 23d |I 23er 1 24 |1 25 | rate : 1 1 1 1 1 1 1 1 2 1 2 | 2 1 2 | 2 | 2 | 2 | 1 1 1 11 1 1 1 1 1 2 | 2 |

28. REPRESENTATIVE PROFILES: uda/ / /89/CD/0717/12/ /136/ ity/ /89/YH/0617/62/ /137/

0617&0717 - 300 Page 2 LAND UNIT : Mg.2.3.4 Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier : 1 b. Description Upper and middle slopes Lower slopes c. Z of Land Unit 80Z 20Z SLOPES dl. Steepness > 75Z > 75Z d2. Slope length > 500 m 201 - 500 m d3. Slope curvature Straight Straight SOILS el. USDA Class dystropepts hapludults e2. Z Facet 100Z 100Z

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts hapludults

b. Texture: topsoil: Moderately fine Moderately fine subsoil: Moderately fine Moderately fine c. Depth: peatsoil: mineralsoil: Very deep Very deep d. Drainage : Moderately well Well drained NUTRIENTS : — e. Exch. K: topsoil: Low Medium subsoil: Low Low f. Total K2O: topsoil: Low Very high subsoil: Very low Very high g. Avail. P: method : Bray I Bray I topsoil: High Very low subsoil: Very low Very low h. Total P: topsoil: Low Low subsoil: Very low Low OTHERS : i. CEC pH 7 topsoil: Low Low subsoil: Low Low J. Reaction: topsoil: Very strong acid Very strong acid subsoil: Strong acid Strong acid k. Al sat. topsoil: Very high Low subsoil: Very high Medium 1. Al toxicity : No m. Acid sulph. pot. : Hot relevant Hot relevant n. Salinity (ec) : Salt free Salt free o. Other toxicity : p. Root obstr. layer : 107 cm 130 cm q. Organic matter (Z) : 3.8 2.5 r. TEB (meq/100 g) : 0.5 3.7

s. Total anal, profiles: 1

I. LAB CHECK Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated from Mg.2.2.4

0617&0717 - 301 LAND UNIT : Mu.2.3.4 Mapsheet : 0717 LREP-SDBM, CSR-BOGOR 08/12/90

MAF IMAGE : CROSS SECTION :

> 300 m

1. LAND UNIT : Mu.2.3.4 Mountains, undifferentiated sedimentary rocks, abrupt slopes, scarps (slopes >75Z), extremely dissected 2. MAP SHEET : 0717 3 AREA ': 519.4 km2 4. OCCURRENCE by'PROVINCE: Sumatera Utara 100Z 5. STATUS IDENTIFIERS Updated by : SS Edit date: 06/11/89 Status : Final 7. SATELLITE SCENES 128/58/08/08/85, 128/59/08/08/85 B. AERIAL PHOTOGRAPHS 1:100.000 12S /8348-197, 18 /8319-171 9. RADAR STAR-1/250/88/0717-2/4 10. PARENT MATERIAL 11. ROCK OUTCROP : 0/C a. Weathering Partial b. Lithology : claystone, gravel, sandstone c. Formation : Puku , Put 12. WATER a. Quality Fresh b. Source : Rain, Perennial river 13. FISHERIES None 14. RIVERS a. Floodrisk water : None . b. Floodrisk sed.: None c. Inundation : None 15. VEGETATION/LAND USE : moist primary lowland forest, secondary forest, bush, scrub Area used : 0 Z 16. ACCELERATED EROSION a. Occurrence : Extensive " b. Evidence : Various 17. TERRAIN : Mountanious >16Z, >300 m 18. PLAN/ Dominant: Not elongated and parallel > 60Z of area.crested/peaked PROFILE Included; 19. RELIEF AMPLITUDE a. Amplitude: Very high b. Variability : 20. ALTITUDE Minimum : 600 m Maximum : 1300 m Range : 650 - 1200 m 21. DRAINAGE a. Pattern: Parallel b. Density : High 24. VALLEY FLOOR Width : Very narrow 25. FRAGMEN a. Valleys: None Jo. Interfluves : None

26. RELIABILITY (1= reliable, 2= probable, 3= tenable, 4= plausible) item | 10b | 12a | 14a I 14b | 19 | 20 | 21b I 22b I 22c I 22dl I 22d2 I 22el | 23b I 23c I 23d | 23er | 24 | 25 | rate :l|l|l|l|2|z| "2 I 1 I I 1 I

28. REPRESENTATIVE PROFILES: ity/ / /88/YM/0717/51/ /040/ eot/ /89/SS/0717/21/ /059/

0617&0717 - 302 -Fog* 2 LAND UNIT : Hu.2.3.A Mapsheet : 0717 08/12/90

22. FACETS, SLOPES and SOILS FACETS a. Identifier 1 2 b. Description Middle and lower slopes Crest and upper slopes c. Z of Land Unit 60Z «0Z SLOPES dl. Steepness > 75* > 75Z d2. Slope length > S00 m 201 - 500 Hi d3. Slope curvature Straight Convex SOILS el. USDA Class dystropepts troporthents e2. X Facet 100Z 1001

23. SOIL CHARACTERISTICS a. USDA Great Group : dystropepts troporthents

b. Texture: topsoil: Moderately coarse Moderately coarse subsoil: Medium Moderately coarse c. Depth: peatsoll: mineralsoil: Moderately deep Very shallow d. Drainage : Well drained Somewhat exessively HUTMENTS : e. Exch. K: tópsoil: Low Low subsoil: Low Low t. Total K20: topsóil: Low Low subsoil: Low Low g. Avail. F: method : -Bray I Bray I topsoil:' Very low Medium* subsoil: Very low Very low h. Total P: topsoil: Medium Very low subsoil: Low Very low OTHERS : i. CEC pH 7 topsoil: Very high Very high subsoil: Very high. Very high $. Reaction : topsoil: Exessively acid Exessively acid subsoil: Exessively acid Exessively acid k. Al sat. topsoil: High Bigh subsoil: Very high Very high 1. Al toxicity : Yes Yes m. Acid sulph. pot. : Not relevant Not relevant n. Salinity (ec.) . : Salt free Salt free o.- Other toxicity : p. Root obstr. layer : 55 cm 12 cm q. Organic matter (I) : 3.6 4.7 r. TEB (meq/100 g) : 0.7

s. Total anal, profiles: 1 1

f. LAB CHECK : Yes Yes

27. ADDITIONAL NOTES : The soil data of Dystropepts are extrapolated data from Mu.2.2.4 and Troporthents are Hu.1.3.3

06176-0717 - 303