Your search found 6 records
1 JICA. 1996. The feasibility study on the rehabilitation of irrigation and drainage systems in the river basins of Southern Sri Lanka - Volume I: Main report. Report prepared by the Japan International Cooperation Agency, in response to a request from the Government of the Democratic Socialist Republic of Sri Lanka. v.p.
Rehabilitation ; Modernization ; Irrigation programs ; Drainage ; River basin development ; Development projects ; Development plans ; Project design ; Feasibility studies ; Crop production ; Hydrology ; Farmers' associations ; Irrigation management ; Participatory management ; Farmer participation ; Environmental effects ; Irrigation canals ; Construction costs ; Agricultural development ; Cropping systems ; Project appraisal ; Indicators ; Economic evaluation ; Agricultural policy ; Institutions ; Organizations ; Legislation ; Development policy ; Social aspects ; Marketing ; Rice ; Vegetables ; Fertilizers ; Crop yield ; Agricultural credit ; Benefits ; Water balance ; Reservoirs ; Female labor ; Malaria ; Bananas ; Maintenance ; Training / Sri Lanka / Kalutara / Matara / Hambantota / Liyangastota / Walawe Ganga / Muruthawela / Urbokka Oya / Kirama Oya / Badagiriya / Malala Oya / Kachigala Oya / Benthara Ganga / Polwatte Ganga / Thangalu Welyaya / Kirama Oya / Gal Oya / Uda Walawe
(Location: IWMI-HQ Call no: 631.7.7 G744 JIC Record No: H024245)
2 JICA. 1996. The feasibility study on the rehabilitation of irrigation and drainage systems in the river basins of Southern Sri Lanka - Volume II: Appendixes-1 (Master plan study) Report prepared by the Japan International Cooperation Agency, in response to a request from the Government of the Democratic Socialist Republic of Sri Lanka. v.p.
Rehabilitation ; Modernization ; Irrigation programs ; Drainage ; River basin development ; Hydrology ; Development projects ; Development plans ; Project design ; Feasibility studies ; Regional development ; Economic aspects ; Construction costs ; Irrigation management ; Participatory management ; Farmer participation ; Farmers' associations ; Rice ; Vegetables ; Water requirements ; Soyabeans ; Livestock ; Rural development ; Poverty ; Social aspects ; Environmental effects ; Malaria ; Waterborne diseases ; Water pollution ; Woman's status ; Climate ; Rain ; Reservoirs ; Irrigation canals ; Water distribution ; Water balance ; Cropping systems ; Irrigation engineering ; Agricultural development ; Institution building ; Agricultural policy ; Legislation ; Water quality ; Watersheds ; Project appraisal ; Indicators ; Economic evaluation / Sri Lanka / Kalutara / Matara / Hambantota / Liyangastota / Walawe Ganga / Muruthawela / Urbokka Oya / Kirama Oya / Badagiriya / Malala Oya / Kachigala Oya / Benthara Ganga / Polwatte Ganga / Thangalu Welyaya / Kirama Oya / Gal Oya / Uda Walawe / Gin Ganga / Nilwala Ganga
(Location: IWMI-HQ Call no: 631.7.7 G744 JIC Record No: H024246)
3 Panabokke, C. R. 2002. Review of data on soils and geology in the basin area and their relevance to groundwater in the area. In Imbulana, K. A. U. S.; Droogers, P.; Makin, I. W. (Eds.), World Water Assessment Programme Sri Lanka case study, Ruhuna basins: Proceedings of a Workshop held at Koggala Beach Hotel, Sri Lanka, 7-9 April 2002. Colombo, Sri Lanka: IWMI. pp.63-83.
Rain ; Soils ; Geology ; Land use ; Groundwater ; Aquifers ; Sedimentation ; Geology ; Water quality / Sri Lanka / Kirindi Oya / Walawe Ganga / Malala Oya / Ruhuna / Hambantota / Uda Walawe
(Location: IWMI-HQ Call no: IWMI 333.91 G744 IMB Record No: H031112)
(0.44 MB)
4 Senaratne, S. 2002. Water for industry. In Imbulana, K. A. U. S.; Droogers, P.; Makin, I. W. (Eds.), World Water Assessment Programme Sri Lanka case study, Ruhuna basins: Proceedings of a Workshop held at Koggala Beach Hotel, Sri Lanka, 7-9 April 2002. Colombo, Sri Lanka: IWMI. pp.145-161.
Industrialization ; Investment ; Legislation ; Development policy ; River basins ; Water use ; Effluents ; Environmental effects / Sri Lanka / Walawe Ganga / Kirindi Oya / Malala Oya / Menik Ganga
(Location: IWMI-HQ Call no: IWMI 333.91 G744 IMB Record No: H031117)
5 Abeywickrama, W. D. S. 2010. How to minimize the negative impacts on Bundala National Park due to irrigation development of the Kirindi Oya River Basin. In Evans, Alexandra; Jinapala, K. (Eds). Proceedings of the National Conference on Water, Food Security and Climate Change in Sri Lanka, BMICH, Colombo, Sri Lanka, 9-11 June 2009. Vol. 2. Water quality, environment and climate change. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.1-6.
Wetlands ; Lagoons ; Habitats ; Irrigated farming ; Environmental degradation / Sri Lanka / Bundala National Park / Kirindi Oya River Basin / Malala Oya / Embilikala Oya / Kirindi Oya
(Location: IWMI HQ Call no: IWMI 631.7 G744 EVA Record No: H042854)
The environment is an important water user, and one that often finds itself at the bottom of the list of priorities when supplies become scare. This research studied how the needs of wetlands can coexist in parallel with irrigation demands and other human activities. Sri Lanka is a signatory to the Convention on Wetlands of International Importance for Migratory Waterfowl, known as the Ramsar Convention and Bundala Lagoon was declared Sri Lanka’s first Ramsar site, a wetland of international importance for migratory waterfowl, in 1990, because of its high bird species richness. The delicate ecological balance of these lagoons will be severely affected by the on-going Weheragala Reservoir project, which is designed to divert excess water from Manike Ganga River basin to Kirindi Oya River basin and the Malala Oya River basin development project. The main negative impacts are eutrophication, accumulation of pesticides and insecticides in the lagoons and siltation, and that lagoons will be converted to fresh water bodies. This research studied how to minimize these negative impacts using social, economic and engineering tools. The research findings are useful for researches, policymakers and decision-makers, who must find opportunities to improve farmers’ incomes and national food production, while and at the same time ensuring sustainable management of wetland ecosystems in Sri Lanka.
6 Patabendige, K. M. K.; Amarasinghe, M. D.; Ratnayake, R. M. C. S.; Dahanayaka, D. D. G. L. 2023. Impact of climate and irrigation practices on hydrological aspects of Bundala wetlands in Sri Lanka. Irrigation and Drainage, 72(3):696-705. [doi: https://doi.org/10.1002/ird.2797]
Wetlands ; Coastal areas ; Irrigation ; Rain ; Flooding ; Water levels ; Salinity ; Climate change ; Vegetation ; Water quality ; Freshwater ; Drainage water ; National parks ; Lagoons / Sri Lanka / Bundala / Lunugamvehera / Bundala Wetlands / Embilikala Lagoon / Malala Lagoon / Kirindi Oya / Malala Oya
(Location: IWMI HQ Call no: e-copy only Record No: H051732)
(0.62 MB)
Bundala wetlands are the first to be declared a Ramsar wetland reserve in Sri Lanka. Two wetlands of this complex have transformed from seasonally inundated saline areas into permanent freshwater ecosystems, resulting in spatial and temporal changes that presumably have favoured plant invasions. We hypothesized that climate/rainfall changes and irrigation practices would be the most potential drivers of this change, and the objective of this research is to empirically determine the influence of rainfall and irrigation practices in the catchment on inundation pattern and plant nutrient availability that could potentially change ecology of these wetlands. Monthly rainfall data for the Bundala area (1988–2017) from Sri Lanka's meteorological department were analysed by parametric and nonparametric statistical methods, and a statistically significant change in rainfall was not discernible, confirming climate change is unlikely to be a driver to increase the lagoon water level. Irrigation data analysis revealed that these wetlands receive nearly 1.28 × 107 m3 of irrigation drainage annually from an irrigation scheme in the immediate catchment, which has resulted in decreased salinity, while inundation and plant nutrient content increased, changing the wetlands' ecology and socioeconomic status of the dependent rural communities.
Powered by DB/Text WebPublisher, from
