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Distributed Modelling of Water Resources and Pollute Transport in Malwathu Oya Basin, Sri Lanka
-1DWQ6FL)RXQGDWLRQ6UL/DQND DOI: http://dx.doi.org/10.4038/jnsfsr.v47i3.9281 RESEARCH ARTICLE Distributed modelling of water resources and pollute transport in Malwathu Oya Basin, Sri Lanka A.C. Dahanayake * and R.L.H.L. Rajapakse 'HSDUWPHQWRI&LYLO(QJLQHHULQJ)DFXOW\RI(QJLQHHULQJ8QLYHUVLW\RI0RUDWXZD.DWXEHGGD0RUDWXZD Submitted: 04 April 2018; Revised: 11 April 2019; Accepted: 03 May 2019 Abstract: The Nachchaduwa sub-catchment (598.74 km 2) of the Malwathu Oya basin is seasonally stressed in the dry INTRODUCTION SHULRGVDQGLWVGRZQVWUHDPSDUWVXQGHUJRLQWHUPLWWHQWÀRRGV during monsoon seasons while the fate and behaviour of excess Water, being a vital natural resource to sustain all life QLWURJHQ 1 DQGSKRVSKRUXV 3 DGGHGWRWKHZDWHUZD\VGXH forms on earth, has now become a limited resource due to to agricultural fertilisers used in the upstream areas remain the adverse impacts of various natural and anthropogenic unresolved. This study incorporated the Water and Energy causes. Due to the increasing population and rapid 7UDQVIHU3URFHVVHV :(3 PRGHOWRDVVHVVWKHSUHVHQWVWDWXV urbanisation, the demand for water has been increasing of the catchment concerning water resources and pollutant drastically. Further, the quality of the available fresh transport. Results showed that the catchment response to the water resources has been deteriorating mainly due to UDLQIDOO LV KLJKO\ UHJXODWHG GXH WR UHVHUYRLU VWRUDJH H൵HFW pollution created by the anthropogenic activities in many XQJDXJHGEDVLQZLWKUHJXODWHGÀRZV 7KHDPRXQWVRI1DQG3 rivers in developing countries, which -
Final Report Volume Ii Appendix (1/2)
DEMOCRATIC SOCIALIST REPUBLIC OF SRI LANKA MAHAWELI AUTHORITY OF SRI LANKA (MASL) PREPARATORY SURVEY ON MORAGAHAKANDA DEVELOPMENT PROJECT FINAL REPORT VOLUME II APPENDIX (1/2) JULY 2010 JAPAN INTERNATIONAL COOPERATION AGENCY NIPPON KOEI CO., LTD. SAD CR (5) 10-011 DEMOCRATIC SOCIALIST REPUBLIC OF SRI LANKA MAHAWELI AUTHORITY OF SRI LANKA (MASL) PREPARATORY SURVEY ON MORAGAHAKANDA DEVELOPMENT PROJECT FINAL REPORT VOLUME II APPENDIX (1/2) JULY 2010 JAPAN INTERNATIONAL COOPERATION AGENCY NIPPON KOEI CO., LTD. PREPARATORY SURVEY ON MORAGAHAKANDA DEVELOPMENT PROJECT FINAL REPORT LIST OF VOLUMES VOLUME I MAIN REPORT VOLUME II APPENDIX (1/2) APPENDIX A GEOLOGY APPENDIX B WATER BALANCE Not to be disclosed until the APPENDIX C REVIEW OF DESIGN OF contract agreements for all the FACILITIES OF THE PROJECT works and services are concluded. APPENDIX D COST ESTIMATE APPENDIX E ECONOMIC EVALUATION VOLUME III APPENDIX (2/2) APPENDIX F ENVIRONMENTAL EVALUATION APPENDIX A GEOLOGY APPENDIX A GEOLOGY REPORT 1. Introduction Geological Investigations for Moragahakanda dam were commenced by USOM in 1959, and core drilling surveys were subsequently done by UNDP/FAO and Irrigation Department of Sri Lanka in 1967/1968 and 1977/1978 respectively. A full-scale geological investigation including core drilling, seismic prospecting, work adit, in-situ rock shear test, construction material survey and test grouting was carried out for the feasibility study by JICA in 1979 (hereinafter referred to FS (1979)). Almost twenty years had past after FS (1979), additional feasibility study including 34 drill holes was carried out by Lahmeyer International Associates in 2000/2001 (hereinafter referred to FS (2001)). Subsequently, supplemental geological investigations including core drilling, electric resistivity survey and laboratory tests for rock materials were done by MASL in 2007. -
Fit.* IRRIGATION and MULTI-PURPOSE DEVELOPMENT
fit.* The Historic Jaya Ganga — built by King Dbatustna in tbi <>tb century AD to carry the waters of the Kala Wewa to the ancient city tanks of Anuradbapura, 57 miles away, while feeding a number of village tanks in its course. This channel is also famous for the gentle gradient of 6 ins. per mile for the first I7 miles and an average of 1 //. per mile throughout its length. Both tbeKalawewa andtbefiya Garga were restored in 1885 — 18 8 8 by the British, but not to their fullest capacities. New under the Mabaweli Diversion project, the Kill Wewa his been augmented and the Jaya Gingi improved to carry 1000 cusecs of water. The history of our country dates back to the 6th century B.C. When the legendary Vijaya landed in L->nka, he is believed to have found an island occupied by certain tribes who had already developed a rudimentary sys tem of irrigation. Tradition has it that Kuveni was spinning cotton on the bund of a small lake which was presumably part of this ancient system. The development of an ancient civilization which was entirely depen dent on an irrigation system that grew in size and complexity through the years is described in our written history. Many examples are available which demonstrate this systematic development of water and land re sources throughout the so-called dry zone of our country over very long periods of time. The development of a water supply and irrigation system around the city of Anuradhapuia may be taken as an example. -
World Bank Document
PROCUREMENT PLAN (Textual Part) Project information: country]Sri Lanka – Water Resources Management Project-P-166865 Project Implementation agency: Ministry of Mahaweli Development and Environment Public Disclosure Authorized Date of the Procurement Plan: 24 June, 2019 Period covered by this Procurement Plan: 24 June 2019-31 Dee. 2020 Preamble In accordance with paragraph 5.9 of the “World Bank Procurement Regulations for IPF Borrowers” (July 2016) (“Procurement Regulations”) the Bank’s Systematic Tracking and Exchanges in Procurement (STEP) system will be used to prepare, clear and update Procurement Plans and conduct all procurement transactions for the Project. This textual part along with the Procurement Plan tables in STEP constitute the Procurement Plan Public Disclosure Authorized for the Project. The following conditions apply to all procurement activities in the Procurement Plan. The other elements of the Procurement Plan as required under paragraph 4.4 of the Procurement Regulations are set forth in STEP. The Bank’s Standard Procurement Documents: shall be used for all contracts subject to international competitive procurement and those contracts as specified in the Procurement Plan tables in STEP. National Procurement Arrangements: In accordance with the Procurement Regulations for IPF Borrowers (July 2016, revised November 2017) (“Procurement Regulations”), when approaching the national market, as agreed in the Procurement Plan tables in STEP, the country’s own Public Disclosure Authorized procurement procedures may be used. When the Borrower, for the procurement of goods, works and non-consulting services, uses its own national open competitive procurement arrangements as set forth in Sri Lanka’s Procurement Guidelines 2006, such arrangements shall be subject to paragraph 5.4 of the Bank’s Procurement Regulations and the following conditions: 1. -
Ecological Biogeography of Mangroves in Sri Lanka
Ceylon Journal of Science 46 (Special Issue) 2017: 119-125 DOI: http://doi.org/10.4038/cjs.v46i5.7459 RESEARCH ARTICLE Ecological biogeography of mangroves in Sri Lanka M.D. Amarasinghe1,* and K.A.R.S. Perera2 1Department of Botany, University of Kelaniya, Kelaniya 2Department of Botany, The Open University of Sri Lanka, Nawala, Nugegoda Received: 10/01/2017; Accepted: 10/08/2017 Abstract: The relatively low extent of mangroves in Sri extensively the observations are made and how reliable the Lanka supports 23 true mangrove plant species. In the last few identification of plants is, thus, rendering a considerable decades, more plant species that naturally occur in terrestrial and element of subjectivity. An attempt to reduce subjectivity freshwater habitats are observed in mangrove areas in Sri Lanka. in this respect is presented in the paper on “Historical Increasing freshwater input to estuaries and lagoons through biogeography of mangroves in Sri Lanka” in this volume. upstream irrigation works and altered rainfall regimes appear to have changed their species composition and distribution. This MATERIALS AND METHODS will alter the vegetation structure, processes and functions of Literature on mangrove distribution in Sri Lanka was mangrove ecosystems in Sri Lanka. The geographical distribution collated to analyze the gaps in knowledge on distribution/ of mangrove plant taxa in the micro-tidal coastal areas of Sri occurrence of true mangrove species. Recently published Lanka is investigated to have an insight into the climatic and information on mangrove distribution on the northern anthropogenic factors that can potentially influence the ecological and eastern coasts could not be found, most probably for biogeography of mangroves and sustainability of these mangrove the reason that these areas were inaccessible until the ecosystems. -
CHAP 9 Sri Lanka
79o 00' 79o 30' 80o 00' 80o 30' 81o 00' 81o 30' 82o 00' Kankesanturai Point Pedro A I Karaitivu I. Jana D Peninsula N Kayts Jana SRI LANKA I Palk Strait National capital Ja na Elephant Pass Punkudutivu I. Lag Provincial capital oon Devipattinam Delft I. Town, village Palk Bay Kilinochchi Provincial boundary - Puthukkudiyiruppu Nanthi Kadal Main road Rameswaram Iranaitivu Is. Mullaittivu Secondary road Pamban I. Ferry Vellankulam Dhanushkodi Talaimannar Manjulam Nayaru Lagoon Railroad A da m' Airport s Bridge NORTHERN Nedunkeni 9o 00' Kokkilai Lagoon Mannar I. Mannar Puliyankulam Pulmoddai Madhu Road Bay of Bengal Gulf of Mannar Silavatturai Vavuniya Nilaveli Pankulam Kebitigollewa Trincomalee Horuwupotana r Bay Medawachchiya diya A d o o o 8 30' ru 8 30' v K i A Karaitivu I. ru Hamillewa n a Mutur Y Pomparippu Anuradhapura Kantalai n o NORTH CENTRAL Kalpitiya o g Maragahewa a Kathiraveli L Kal m a Oy a a l a t t Puttalam Kekirawa Habarane u 8o 00' P Galgamuwa 8o 00' NORTH Polonnaruwa Dambula Valachchenai Anamaduwa a y O Mundal Maho a Chenkaladi Lake r u WESTERN d Batticaloa Naula a M uru ed D Ganewatta a EASTERN g n Madura Oya a G Reservoir Chilaw i l Maha Oya o Kurunegala e o 7 30' w 7 30' Matale a Paddiruppu h Kuliyapitiya a CENTRAL M Kehelula Kalmunai Pannala Kandy Mahiyangana Uhana Randenigale ya Amparai a O a Mah Reservoir y Negombo Kegalla O Gal Tirrukkovil Negombo Victoria Falls Reservoir Bibile Senanayake Lagoon Gampaha Samudra Ja-Ela o a Nuwara Badulla o 7 00' ng 7 00' Kelan a Avissawella Eliya Colombo i G Sri Jayewardenepura -
An Assessment of the Water Quality in Major Streams of the Madu Ganga Catchment and Pollution Loads Draining Into the Madu Ganga from Its Own Catchment
An assessment of the water quality in major streams of the Madu Ganga catchment and pollution loads draining into the Madu Ganga from its own catchment A.A.D. Amarathunga* and N. Sureshkumar National Aquatic Resources Research and Development Agency (NARA), Crow Island, Colombo 15, Sri Lanka. Abstract The Madu Ganga Lagoon is located in the Southern Coast, Northwest of the city of Galle within the Galle District. The aim of this study was to evaluate the pollution status of the lagoon and the contribution of the land base pollutants from the catchment of the Madu Ganga. Selected water quality parameters were measured at monthly intervals at twelve sampling locations in the catchment. Certain parameters such as salinity (2.2 + 1.7 ppt), oil & grease (8.5 + 6.5 mg/L), total suspended solids (16.1 ± 12.3 mg/L), and turbidity (20.1 ± 12.5 NTU) are found to be elevated levels when compared with water quality standards. The study revealed that the Lenagala Ela brought a high nutrient load (426.7 kg/day) into Madu Ganga and Arawavilla Ela, Magala Ela and Bogaha Ela also contributed significantly. The highest nutrient loads were found with the onset of the Northeast Monsoon during November to January. The increase in nutrient loads is attributed to the fertilizers added to the soil with the commencement of the major paddy cultivation season. Keywords: Physico-chemical parameters, Madu Ganga, Water pollution, Nutrient load, Suspended sediment ^Corresponding author - Email: deeptha(s>nara.ac.lk, [email protected] Journal of the National Aquatic Resources Research and Development Agency, Vol. -
Annual Performance Report of the Ministry of Irrigation and Water
SO^a ^d S°rae/@^ ®g ^ 3 ^ 3 000 ^50da^u ^d ss^ 0 © ^ 0 0 m ® ®^3©i0^)^ SO §°0S SO^a & 0 i d ^ @ 0 ^ ^ iq t S i m g ^ u . Note Since original document prepared in English and translated to Sinhala/Tamil, in any discrepancy in words, English version shall be considered as correct. (g)fdlLJL| ^Lpso g^t)6H655TLD GlLonl^IiiJ60 ^ l u n r f l a a u u L l ® rflrhiaarnh / ^u51yp ^ d S lu j QLnuy51ffi(snjffi@ GIlditl^I 0uiLHTa«uuL_i_^rT6\) QLDrry5) 0uiLiiTuiJ6b 6j^rTeaQ ^rT0 (jprrswsrun@ ffimS55TLJULll_rT6\) ^rti]<£l6\)U Ljlp^l ff[fllUrT6O TQ ^6OT ffi0 ^LJU @ LD Message from the Secretary I am happy to present the Performance Report of the Ministry of Irrigation and Water Resources Management for the year 2011, having forged ahead to fulfill the mission and objectives of the Ministry, in the subjects and functions pertaining to the irrigation and water sub sectors. The year under review was eventful and we were able to take many progressive steps that will steer this sector to be more productive to serve the nation in the coming years. The capital investment programme of the Ministry had a workload of approximately Rs 20,000 million. This was a heavy development programme. We were on the path to achieve good progress, in spite of floods occurred in the beginning of the year and other constraints that had to be overcome during implementation. Steps were taken to remedy constraints such as staff shortages that existed, by new recruitments to the certain skilled technical grades but the shortage still prevails by large especially in the grades of Engineers, Engineering Assistants and other technical categories, which is being addressed by way of restructuring institutions, reviewing schemes of recruitments etc. -
The Government of the Democratic
THE GOVERNMENT OF THE DEMOCRATIC SOCIALIST REPUBLIC OF SRI LANKA FINANCIAL STATEMENTS OF THE GOVERNMENT FOR THE YEAR ENDED 31ST DECEMBER 2019 DEPARTMENT OF STATE ACCOUNTS GENERAL TREASURY COLOMBO-01 TABLE OF CONTENTS Page No. 1. Note to Readers 1 2. Statement of Responsibility 2 3. Statement of Financial Performance for the Year ended 31st December 2019 3 4. Statement of Financial Position as at 31st December 2019 4 5. Statement of Cash Flow for the Year ended 31st December 2019 5 6. Statement of Changes in Net Assets / Equity for the Year ended 31st December 2019 6 7. Current Year Actual vs Budget 7 8. Significant Accounting Policies 8-12 9. Time of Recording and Measurement for Presenting the Financial Statements of Republic 13-14 Notes 10. Note 1-10 - Notes to the Financial Statements 15-19 11. Note 11 - Foreign Borrowings 20-26 12. Note 12 - Foreign Grants 27-28 13. Note 13 - Domestic Non-Bank Borrowings 29 14. Note 14 - Domestic Debt Repayment 29 15. Note 15 - Recoveries from On-Lending 29 16. Note 16 - Statement of Non-Financial Assets 30-37 17. Note 17 - Advances to Public Officers 38 18. Note 18 - Advances to Government Departments 38 19. Note 19 - Membership Fees Paid 38 20. Note 20 - On-Lending 39-40 21. Note 21 (Note 21.1-21.5) - Capital Contribution/Shareholding in the Commercial Public Corporations/State Owned Companies/Plantation Companies/ Development Bank (8568/8548) 41-46 22. Note 22 - Rent and Work Advance Account 47-51 23. Note 23 - Consolidated Fund 52 24. Note 24 - Foreign Loan Revolving Funds 52 25. -
A Case Study of the Kotmale Dam in Sri Lanka Jagath Manatungea* and Naruhiko Takesadab
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Digital Repository, University of Moratuwa International Journal of Water Resources Development Vol. 29, No. 1, March 2013, 87–100 Long-term perceptions of project-affected persons: a case study of the Kotmale Dam in Sri Lanka Jagath Manatungea* and Naruhiko Takesadab aDepartment of Civil Engineering, University of Moratuwa, Sri Lanka; bFaculty of Humanity and Environment, Hosei University, Tokyo, Japan (Received 3 June 2012; final version received 11 June 2012) Many of the negative consequences of dam-related involuntary displacement of affected communities can be overcome by careful planning and by providing resettlers with adequate compensation. In this paper the resettlement scheme of the Kotmale Dam in Sri Lanka is revisited, focusing on resettlers’ positive perceptions. Displaced communities expressed satisfaction when income levels and stability were higher in addition to their having access to land ownership titles, good irrigation infrastructure, water, and more opportunities for their children. However, harsh climate conditions, increased incidence of diseases and human–wildlife conflicts caused much discomfort among resettlers. Diversification away from paddy farming to other agricultural activities and providing legal land titles would have allowed them to gain more from resettlement compensation. Keywords: dam construction; involuntary displacement; livelihood rebuilding; resettlement compensation Introduction Over the decades, there has been growing concern about the negative consequences of the involuntary displacement of rural communities for large-scale infrastructure development (De Wet, 2006; Robinson, 2003). The construction of dams is the most often cited example of development projects that cause forced displacement of communities (McCully, 2001). -
River Sand Mining – Boon Or Bane
RIVER SAND MINING - BOON OR BANE? A synopsis of a series of national, provincial and local level dialogues on unregulated / illicit river sand mining Compiled by Ranjith Ratnayake Sri Lanka Water Partnership ? ? RIVER SAND MINING - BOON OR BANE? A synopsis of a series of national, provincial and local level dialogues on unregulated / illicit river sand mining Compiled by Ranjith Ratnayake Sri Lanka Water Partnership November 2008 River Sand Mining (Manual) Sand Removal from River Bed RIVER SAND BOON OR BANE? Preface Unregulated and illicit River Sand Mining (RSM) and its consequences with the related aspect of corruption, has been an issue that has constantly come up for discussion at forums organized by the Sri Lanka Water Partnership (SLWP) on Integrated Water Resources Management (IWRM) and other water related topics, starting with a Gender and Water dialogue held in Kurunegala in 2005. Two of the Area Water Partnerships (AWP) established for Deduru Oya (Deduru Oya Surakeeme Sanvidhanaya ) and the Maha Oya (Maha Oya Mithuro) have this as the priority issue, whilst three other AWP for Malwatu Oya , Upper Mahaveli and Nilwala highlight sand mining as needing urgent resolution. The SLWP after several local discussions organized a National Dialogue on River Sand and Clay Mining on 24th April 2006 in Colombo in collaboration with the Capacity Development Network (CapNet ) and the Network of Women Water Professionals ( NetWwater). The Hon; Minister of Science and Technology who was Chief Guest at this workshop attended by the relevant agencies and NGO agreed to set up a Ministerial Task Force for technological alternatives to river sand to be considered . -
(Ifasina) Willeyi Horn (Coleoptera: Cicindelidae) of Sri Lanka
JoTT COMMUNI C ATION 3(2): 1493-1505 The current occurrence, habitat and historical change in the distribution range of an endemic tiger beetle species Cicindela (Ifasina) willeyi Horn (Coleoptera: Cicindelidae) of Sri Lanka Chandima Dangalle 1, Nirmalie Pallewatta 2 & Alfried Vogler 3 1,2 Department of Zoology, Faculty of Science, University of Colombo, Colombo 03, Sri Lanka 3 Department of Entomology, The Natural History Museum, London SW7 5BD, United Kingdom Email: 1 [email protected] (corresponding author), 2 [email protected], 3 [email protected] Date of publication (online): 26 February 2011 Abstract: The current occurrence, habitat and historical change in distributional range Date of publication (print): 26 February 2011 are studied for an endemic tiger beetle species, Cicindela (Ifasina) willeyi Horn of Sri ISSN 0974-7907 (online) | 0974-7893 (print) Lanka. At present, the species is only recorded from Maha Oya (Dehi Owita) and Handapangoda, and is absent from the locations where it previously occurred. The Editor: K.A. Subramanian current habitat of the species is explained using abiotic environmental factors of the Manuscript details: climate and soil recorded using standard methods. Morphology of the species is Ms # o2501 described by studying specimens using identification keys for the genus and comparing Received 02 July 2010 with specimens available at the National Museum of Colombo, Sri Lanka. The DNA Final received 29 December 2010 barcode of the species is elucidated using the mitochondrial CO1 gene sequence of Finally accepted 05 January 2011 eight specimens of Cicindela (Ifasina) willeyi. The study suggests that Maha Oya (Dehi Owita) and Handapangoda are suitable habitats.