Gaham (Aquilal'ia Malaccensis Lamk.)
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GARARU (Aquilaria malaccensisLamk.) Author: Sidkan bin Ali Maliau Basin July 6th2001 CONTENTS Page Contents i Figures 11 Maps 111 1.0 Introduction 1.1 Aquilaria malaccensisLarnk. 1 2.0 AnnotatedForest Key to Aquilaria 2 3.0 Character 3 3.1 Spot Characterin the Field 4 4.0 Distribution 6 4.1 Indonesia 6 4.2 PeninsularMalaysia 6 4.3 Sarawak 6 4.4 Sabah 7 4.5 Maliau Basin ConservationArea 7 5.0 Habitat/Ecology 10 6.0 Discussion 10 6.1 GaharuCollectors 10 6.2 GaharuCollectors' Campsin Maliau Basin ConservationArea 17 6.3 EntryPoints 19 6.4 Statusof Gaharu 1Q 7.0 Recommendations 23 8.0 Conclusion 25 Acknowledgements 26 Useful Literature 27 Appendix: RelevantLegislation 28 FIGURES Page Figure 1: Gaharu tree (Aquilaria malaccensis) 2 Figure 2: Gaharutree at BambanganCamp (inside Botanicalplot P4B -tree number59) Maliau Basin ConservationArea 4 Figure 3: Aquilaria malaccensisLarnk. 5 Figure4: Black gaharu(grade I), seizedfrom Gaharucollectors near the proposed Maliau Basin StudyCentre site 12 Figure 5: White (gradeII) and black gaharuand somethe gaharutools 12 Figure 6: Confiscated Gaharu, kept at the Project Maliau Office, Luasong Forestry Centre 13 Figure 7: White and black gaharu;gaharu tools and equipment,kept at the Project Maliau Office, LuasongForestry Centre 13 Figure 8: A group of gaharucollectors (13 persons) at Mile 53.5 Sapu1utRoad, with one of the Botany Sub-unitstaff 14 Figure 9: Car (with TawauDistrict numberplate -ST 8535C),used by gaharucollectors 14 Figure 10: Gaharutools and equipmentseized from Gaharu people at JalanGaharu (Agathis Camp) 15 III Figure 11: Mr. Henrik Juul checkingone of gaharu Collectorsrattan bag, seizednear Agathis Camp 16 Figure 12: Bird trap made from bamboo (stick coveredwith glue) 16 Figure 13: Gaharucamp along the trail from Rafflesia Campto BambanganCamp 7 Figure 14: Gaharucamp near Agathis Camp 18 Figure 15: Gaharucamp near SapulutRoad 18 Figure 16: Gaharucamp near Tibow ForestCentre 18 Figure 17: Gaharutree felled nearthe Belian Camp's repeatertower 22 Figure 18: Gaharutree that has beenfelled and notched 22 Figure 19: A notch on a Gaharutree 22 MAPS Page Map GaharuDistribution in Maliau Basin ConservationArea 9 Map 2: Entry Pointsto Maliau Basin ConservationArea by GaharuCollectors 21 1.0 Introduction Gaharu is included in the family Thyrnelaeaceae.This family is importantbecause it containsthe curious EaglewoodTree (Aquilaria) with its lumps of fragrantdiseased wood, which find employ in a mannercomparable with the pathological ambergrisof spermwhales. In detail, the fragrant wood is found only in the dying treesand it appearsto be causedby a disease,which gains entry through the old decaying limbs. Normally the wood is soft, pale and odourless, but in stag-headedtrees there are found hard dark fragrant piecesembedded in the healthywood and theselumps, when chipped out and cleaned, are the Eaglewood or Aloe wood of commerce. The bark of the Malayan membersof the family is remarkably tough and stringy, and strips readily from the wood in long sheets. 1.1 Aquilaria malaccensisLamk. (Figure 1) The scientific name for Gaharu is Aquilaria malaccensis.The word Aquilaria comes from the Latin aquila which meanseagle, while malaccensis is of Malacca (one of the statesin Malaysia) and most probably this species has been first time found here. This specieshas varied local names from one place to another. It is commonestin Sabahand well known as Gaharu,while in Sarawak (Than Language) it is called Kayu Angkaras. In Peninsular Malaysia, it has five different names; Karas, Kempas (Malacca), Kekaras, Tengkaras,and Kayu Gaharu.The timber is not of commercialimportance but the fragrant wood left in some rotten branchesis used for carving and it is known as Aloe wood (incensewood). Also an interestingcharacteristic for this speciesis that in some trees the heartwood develops black fungal nodules, which smell sweetand can be used in the manufactureof perfume. Also this speciescan be usedas medicines. 2 Figure 1: Gaharutree (Aquilaria malaccensis) 2.0 Annotated Forest Key to Aquilaria a Leaves softly velvety beneath, particularly on the midrib, sometimes becoming almost glabrous with age; usually drying pale grey-green, sometimeswith a blue-greytinge on upper surface A. hirta Ridley. RIDLEY locoCit. 148; HOU lococrt. 12. Small tree to 15 m tall, 50 cm girth. Mainly east coast; Trengganu,Pahang, Johore, Singapore,E. Sumatra,Riau & Lingga. Flat land, hillsides and ridges, usually in primary forest. All leavesglabrous or nearly so, b b Secondarynerves stronglyraised above, prominent; blade large, 7 x 3 -27 x9cm A. beccariana van Tiegh. HOU lococrt. 13. Medium tree to 20 m tall, 110 cm girth. S.E. Johore, Sumatra & Borneo. Swampy forest near streams. 3 Secondarynerves not prominent and raised above; blade smaller, 4 x 3 - 12 x 5 Cffi. c c Fruits taperingto a long apical beak. Very rare A. rostrata Ridley loco cit. 148. HOU loco cit. 13. Pahang,G. Tahan, Wray's Camp (Ridley 16264).A doubtful speciesidentical withA. malaccensisexcept in fruit shapeand in its sessile,basal stamens (remainsof 2 seenby Hou). The former charactercould be a result of atypical growth, the latter needsconfirmation. Fruit blunt, d d Fruits pear shapedto 4 x 2.5 em. Common,widespread A. malaccensisLamk. Encycl. I (1783) 49, t. 356; RIDLEY loco cit. 147 -8. CORNER Wayside Trees (1940) 632 -3. HOU loco cit. 9. KOCHUMMEN & WYATT-SMITH Malay. For. 17 (1964)202. Fruits small, heart-shaped,to 12 mm broad x 10 mm long. Rare, Singapore A. microcarpa Baill. HOU loco cit. 9. big tree to 36 m tall. Sumatra, Billiton, Banka & Borneo. 3.0 Character Aquilaria malaccensisis a medium to large sized tree, reaching up to 45 m tall and 180 cm girth. Bole usually straight, sometimesfluted; Bark is dark to pale grey, smooth, entire, becoming finely and irregularly fissured; inner bark cream-white,soft, stripping in long pieces;glabrous; buttresses to 2 m (Figure 2). Possiblya fairly fast growing and old decayingtree. Leaves usually elliptic-oblong, rarely narrower, 6 x 3 -8 x 3.5 cm; suddenly narrowing to a long, pronouncedtip; base broadly wedge-shaped; usually drying grey-green;margin slightly undulate, slightly recurved; thinly leathery; glabrous, rather shiny on both surfaces;secondary nerves 12 -16 4 pairs. The stamens have filaments and are longer than the petal and like appendages. Flowers in mainly axillary, stalked heads of about 10; stalk to 2 cm; pedicel slender 5 mm; fragrant; tube bell-shaped, 5 mm, green, yellow or white, with 10 ribs, lobes reflexed; petals 1 mm. Fruits very blunt, pear-shaped,long-narrowed to base,to 4 x 2.5 cm, seatedon persistenttube. Seedone, denselycovered with red hairs (Figure 3). Figure 2: Gaharutrre at BambanganCamp (inside botanical plot P4B -trre number 59), Maliau Basin ConservationArea 3.1 SpotCharacter in the Field A rather large sized tree with more or less fluted base or steep buttresses,grey smoothbark, which strips easily, strongly fibrous, can be stripped off in long patches. It has very light wood and white sapwood. Leavesmore or lesselliptic with ratherdense lateral nerves and from the small fallen leaves which have such very fine parallel veinlets, more or .lessforked, when tom apart showing white silky fibres. 6 4.0 Distribution Besides Sabah,Aquilaria malaccensisis also distributed in Sarawak, PeninsularMalaysia, India, Bunna, Myanmar, PapuaNew Guinea,Cambodia, Thailand, Vietnam, Laos PDR, Sumatra and Kalimantan (Indonesia), Singaporeand Philippines. Below are listed of Aquilaria malaccensisdistribution in Indonesia, PeninsularMalaysia, Sarawak, Sabahand Maliau Basin ConservationArea, MBCA (Based on herbarium specimens from Forest Research Centre, SandakanHerbarium -SAN): - 4.1 Indonesia i) Sumatra ii) Sangai,S. MentayaKab. KotawaringinTimur, Kalimantan iii) Sepakuarea, PT. ITCI KenanganBalikpapan, East Kalimantan 4.2 Peninsular Malaysia i) Air Kroh ForestReserve, Malacca ii) Sg. Yong Kuala Yong, TamanNegara Pahang iii) Sg. Buloh ForestReserve, Selangor iv) Lenggong,Bintang Hijau ForestReserve, Grik Perak v) Lubuk SembilangForest Reserve, Langkawi Island Kedah 4.3 Sarawak i) Bukit Sengkajang, Lanjak-Entimau P.F. Lubok Antu (21b Division) ii) Bukit Mentagai,Bok-Tisam Marudi (4thDivision) iii) Miles 12 Penrissen Road, Arboretum Semengoh Forest Reserve,Kuching 7 4.4 Sabah i) Maliau Basin ConservationArea (MBCA) ii) Vlu Sg. Kiwolotikan, Tongod iii) KTS SegaliudLokan, Sandakan iv) LabuanBotanic Garden,Labuan v) Near Sg. SuanLamba Lanut, Sandakan vi) Kebun Cina, Sandakan Pangieand BeaufortHill miles 56, SelagonForest Beufort Telupid-Ranauroad tracemiles 92, Sandakan ix) Lungmanis,miles 9, main rail, Sandakan x) Sg. LagsikanKiri SandakanBay, Sandakan xi) Sandakan-LahadDatu road, Sandakan xii) GayaIsland (east),Kota Kinabalu xiii) Miles 8, TanegangKechil, Kinabatangan xiv) Miles 12, Labuk Road Sandakan xv) TangkulapRoad, Telupid Rainforest InterpretationCentre Trail, Forest ResearchCenter, Sepilok Sandakan xvii) Sepilok ForestReserve, Sandakan xviii) Sg. Meliau, Beluran xix) Miles 27, SapulutRoad, Bahagian Pedalaman xx) Waiti RangeForest Reserve, Tiulon Nabawan xxi) Nature Trail, Danum Valley Field CentreLahad Datu 4.5 MBCA (also basedon MB Botanical Survey)-Map I i) Strike Ridge of GunongLotung ii) Near Belian Camp's Repeater Tower (four trees but felled alreadyby gaharucollectors) iii) Trail RepeaterTower-Belian Camp(one tree -felled by gaharu collectors) iv) Belian Camp(one tree-felled by gaharucollectors) v) Trail GinsengCamp-Pick Up Point 8 vi) BambanganCamp in botanical plot, P4B (one big tree with