Your search found 29 records
(Location: IWMI-HQ Call no: 351.8722 G744 SRI Record No: H026510)
2 Jayaweera, U. 2000. Interim report on alluvial aquifer studies at lower part of the Walawe River Basin. Unpublished report. Treasury grant studies. 13p.
(Location: IWMI-HQ Call no: P 6256 Record No: H031408)
(Location: IWMI-HQ Call no: P 6262 Record No: H031414)
(Location: IWMI HQ Call no: P 8058 Record No: H031416)
5 Munasingha, N. T. K. 2003. Development of irrigation schemes in Walawe River Basin. In Kamaladasa, B. (Ed.), Water for people and nature: Sanmugam Arumugam commemoration volume. Ratmalana, Sri Lanka: Lanka Water Heritage. pp.83-88.
(Location: IWMI-HQ Call no: 631.7.8 G744 KAM Record No: H033160)
(Location: IWMI-HQ Call no: IWMI 631.7.8 G744 MOL Record No: H033571)
(661 KB)
This exploratory study was designed to capture the main features of agrarian change in the upper part of the basin that depends mostly on anicuts. These anicuts amount to 59 percent of the total basin anicuts in terms of numbers, but to only 43 percent in terms of irrigated area. They are generally very old (the history of some of them goes back to 2000 years; see below) and obviously, many changes have occurred during this time. The study does not allow the reconstitution of all past transformations but offers some insight on recent changes: changes in population pressure over resources and changes in hydrology, crop choice, livelihoods and collective action. The analysis is based on exploratory surveys carried out by the authors and by students of the University of Sabaragamuwa and is not a detailed or in-depth investigation of agricultural systems in the Upper Walawe basin. However, it provides a useful outline of the situation in this part of the basin.
(Location: IWMI-HQ Call no: PER Record No: H033962)
(0.61 MB)
(Location: IWMI-HQ Call no: IWMI 628.1 G744 VAN Record No: H034452)
9 Weragala, Neelanga; Smakhtin, Vladimir. 2004. Simulating hydrological alterations in the conditions of limited data: lessons from the Walawe River Basin in Sri Lanka. In Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.). Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.1. Colombo, Sri Lanka: National Water Resources Secretariat. pp.251-259.
(Location: IWMI-HQ Call no: IWMI 574.526323 G744 WER, 333.91 G000 HER Record No: H035896)
(Location: IWMI-HQ Call no: IWMI 631.7 G744 SOM Record No: H036745)
(807 KB)
11 Floch, P. 2005. Water user associations as means of preventing and dealing with conflict: A perspective on irrigation-induced conflicts. M.Sc. Thesis submitted to the University of Natural Resources and Applied Life Sciences, Vienna, in partial fulfillment of the requirements for the degree of ‘Diplomingenieur’ ix, 103p.
(Location: IWMI-HQ Call no: D 631.7.3 G744 FLO Record No: H036912)
(Location: IWMI-HQ Call no: IWMI 631.7.1 G744 MOL Record No: H037591)
(1.83MB)
This report analyzes a case from southern Sri Lanka, where the Samanalawewa dam and the Kaltota Irrigation Scheme (KIS) compete for the water of the Walawe river. At the catchment level, it is shown that dam releases are well attuned to the needs of KIS and to the occurrences of natural runoff, and that little of the dam water is "lost" to the river.
(Location: IWMI-HQ Call no: IWMI 551.483 G744 SMA Record No: H038045)
(736 KB)
14 Ranjan, S. P. 2005. Assessment of groundwater vulnerability in Walawe River Basin, Sri Lanka. Engineer, 38(1):25-31.
(Location: IWMI-HQ Call no: PER Record No: H038531)
15 Jayakody, Priyantha; Molle, Francois. 2006. Paddy to hydropower: a conflict between uses: case study in Kaltota, Sri Lanka. In Hidroenergia 2006 - International Conference and Exhibition on Small Hydropower, Crieff, Scotland, 7-9 June 2006. 9p.
(Location: IWMI-HQ Call no: IWMI 631.7 G744 JAY Record No: H039719)
16 Jayakody, Priyantha; Somaratne, Pallewatte G. 2006. Evolution of the anicut system: A case from Hulanda Oya Sub Catchment. In Water Resources Research in Sri Lanka: A Symposium. Proceedings of the Water Professional’s Day, held at the Postgraduate Institute of Agriculture (PGIA), University of Peradeniya, Peradeniya, Sri Lanka, 01 October 2006. pp.55-66.
(Location: IWMI HQ Call no: IWMI 631.7 G744 JAY Record No: H039755)
17 Jayakody, Priyantha; Somaratne, P. G. 2006. Evolution of the anicut systems: a case from Hulanda Oya sub catchment. 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.55-66.
(Location: IWMI HQ Call no: 631.7 G744 DAY Record No: H040724)
(Location: IWMI HQ Call no: IWMI 631.7 G744 MOL, PER Record No: H040818)
Although hydropower does not directly consume water, its generation frequently conflicts with other uses, notably irrigation, because its release schedule does not always correspond to the timing of water use by other activities. This article analyses a case from the Walawe river basin, Sri Lanka, where economic efficiency can be raised by reducing releases from the dam for irrigation for the benefit of hydropower generation. The tradeoff is analysed in financial and managerial terms and different options for reducing irrigation diversions are reviewed. Although the high level of current diversions for irrigation warrants the possibility of improvement in management, it is shown that finding ways to reduce supply faces technical and socio-political constraints that make the realization of economic benefits costly and difficult.
(Location: IWMI-HQ Call no: 631.7.7 G744 MAH Record No: H041400)
20 Jayakody, Priyantha; Rajah, Mohamed; Gunasinghe, Sarath. 2009. Assessment of sedimentation of Uda Walawe Reservoir in Walawe River Basin. In Dayawansa, N. D. K.; Pathmarajah, S.; Mowjood, M. I. M. (Eds.). Symposium Proceedings of the Water Professionals' Day, Water Resources Research in Sri Lanka, held at the University of Peradeniya, Peradeniya, Sri Lanka, 1 October 2009. Peradeniya, Sri Lanka: Geo-Informatics Society of Sri Lanka (GISSL) pp.37-44.
(Location: IWMI HQ Call no: e-copy only Record No: H042641)
(0.52 MB)
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