Your search found 8 records
1 Samad, M.; Wijesekera, N. T. S.; Birch, A. (Eds.) 2000. Status and future direction of water research in Sri Lanka: proceedings of the National Conference held at the BMICH, Colombo, Sri Lanka, 4-6 November 1998. Colombo, Sri Lanka: International Water Management Institute (IWMI). xv, 257p.
(Location: IWMI HQ Call no: IWMI 631.7 G744 SAM Record No: H026810)
(0.72 MB)
(Location: IWMI-HQ Call no: P 6237 Record No: H031388)
(Location: IWMI-HQ Call no: P 6238 Record No: H031389)
(Location: IWMI-HQ Call no: 304.6 G744 SRI Record No: H037352)
5 Piyadasa, R. U. K.; Weerasinghe, K. D. N.; Kumara, P. W. H. 2006. Groundwater distribution and quality characteristics in the right bank of Nilwala Ganga: Badulla Oya and Kirama Oya basins, Sri Lanka. In Dayawansa, N. D. K. (Ed.). Geo-informatics for environmental conservation and management: proceedings of the Third National Symposium on Geo-Informatics, 25 August 2006. Peradeniya, Sri Lanka: Geo-Informatics Society of Sri Lanka (GISSL) pp.73-80.
(Location: IWMI HQ Call no: 526.0285 G570 DAY Record No: H040860)
(Location: IWMI HQ Call no: P 7992 Record No: H040888)
(Location: IWMI HQ Call no: P 8016 Record No: H041540)
Present study was carried out to evaluate quality of water in eight selected sites in the head waters and down streams of Nilwala River Basin, in Matara district. Four sites (Stl, St2, St3 and St4) are located in the upper catchment area while the rest of the sites (St5, St6, St7, and St8) are in middle and lower catchment, covering 68 km along the length of the river. Macroinvertebrates were sampled using surber sampler and by lack sampling, from September 1999 to February 2000. Macroinvertebrates collected and sorted out were identified up to family level. Taxa or family richness, modified family biotic index, Average Score Per Taxa (ASPT) values based on Biological Monitoring Working Party (BMWP) adopted for India, number of Ephemeroptera, Plecoptera and Trichoptera (EPT) families, ratio of EPT and Chronomids abundance, percent contribution of dominant family were calculated using collected data on macroinvertebrates. Taxa or family richness and number of EJ?T families were highest in head stream sites. Highest BMWP and ASPT values showed sites in head streams, while these values were lower in sites St7 and St8. Physicochemical parameters such as conductivity and biologcal Oxygen demand were highest in sites located in down streams, while these values were lower in sites in head stream. Values calculated from biological monitoring methods have revealed the occurrence of high quality water in head stream sites and low quality water in down stream sites.
8 Polman, F. J.; Samad, M.; Thio, K. S. 1982. A demonstration of resource based socio-economic planning in Matara district. ARTI-Wageningen University Research Project in Agricultural Planning. Report 1 in Regional Planning for Agricultural Development in Sri Lanka. Colombo, Sri Lanka: Agrarian Research and Training Institute (ARTI). 247p. (ARTI Research study 47)
(Location: IWMI HQ Call no: 338.1 G744 POL Record No: H046342)
(0.36 MB)
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