Your search found 4 records
1 Wickramanayake, M. 2002. Salinity and drinking water: the need for an IWRM perspective: a case study from Nilwala River Basin in Sri Lanka. In Pakistan Water Partnership (PWP). Second South Asia Water Forum, 14-16 December 2002, Islamabad, Pakistan. Proceedings, vol.1. Islamabad, Pakistan: Pakistan Water Partnership (PWP). pp.335-339.
(Location: IWMI-HQ Call no: 333.91 G570 PAK Record No: H034155)
2 Thrimahavithana, D. P. 2006. Current status and future directions of water management in Sri Lanka. In Dayawansa, N. D. K. (Ed.). Water resources research in Sri Lanka: symposium proceedings of the Water Professional’s Day 2006, Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka, 1 October 2006. Peradeniya, Sri Lanka: University of Peradeniya. Postgraduate Institute of Agriculture (PGIA). pp.123-134.
River basin management ; Water user associations ; Water management ; Water pollution ; Institutions ; Organizational change ; Decentralization ; Policy / Sri Lanka / India / South Africa / France / Nilwala River Basin / Andhra Pradesh
(Location: IWMI HQ Call no: 631.7 G744 DAY Record No: H040729)
3 Guruge, W. A. H. P.; De S. Amarasinghe, N. J.; De Silva, M. C. S.; Priyantha, C. H. 2003. Water quality monitoring using macroinvertebrates as biological indicators in streams of Nilwala River Basin, Sri Lanka. Chiang Mai Journal of Science, 30(3):219-226.
River basins ; Water quality ; Monitoring ; Biological indicators ; Invertebrates / Sri Lanka / Nilwala River Basin / Matara District
(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.
4 Liyanaarachchi, P. 2017. Sri Lankawe ganwathura upadrawaya: kriyawaliya, balapema ha kalamanakaranaya. In Sinhalese. [Flood hazard in Sri Lanka: process, impact and management]. Kaduwela, Sri Lanka: Author. 161p.
Flooding ; Flood control ; Weather hazards ; Disaster risk management ; Disaster risk reduction ; Impact assessment ; Forecasting ; Early warning systems ; Disaster preparedness ; Integrated management ; Human behaviour ; State intervention ; Development projects ; Urban areas ; Rain / Sri Lanka / Kelani River Basin / Nilwala River Basin / Gin Ganga / Colombo
(Location: IWMI HQ Call no: 627.4 G744 LIY Record No: H049109)
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