Your search found 8 records
1 Perera, H. D. B. S.; Vidanage, S. P.; Kallesoe, M. F. 2005. Multiple benefits of small irrigation tanks and their economic value: A case study in the Kala Oya Basin, Sri Lanka. Colombo, Sri Lanka: International Union for Conservation of Nature (IUCN). iv, 34p. (Occasional papers of IUCN Sri Lanka no.7)
(Location: IWMI-HQ Call no: 631.7.4 G744 PER Record No: H037385)
2 Saleth, Rathinasamy Maria; Dinar, A.; Neubert, S. 2008. Evaluating institution-impact interactions in the context of millennium development goals: Analytical framework with empirical results. In Koundouri, P. (Ed.). Coping with water deficiency: From research to policy making. Dordrecht, Netherlands: Springer. pp.189-212.
Institutions ; Evaluation ; Impact assessment ; Models ; Development policy ; Development plans ; Water management ; River basins ; Land management ; Agriculture ; Environmental effects ; Food security ; Rural development / Sri Lanka / Kala Oya Basin
(Location: IWMI HQ Call no: IWMI 338.1 G744 SAL Record No: H040646)
3 Dayawansa, N. D. K. (Ed.) 2006. 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). 170p.
Water resource management ; Irrigation systems ; Irrigation equipment ; Groundwater ; Wells ; Water quality ; Climate change ; Indicators ; Soil moisture ; Tanks ; Crop production ; Watersheds ; Farmers ; Training ; Sanitation / Sri Lanka / Matara / Mapalana / Hulanda Oya / Anuradhapura District / Gambirigaswewa Cascade Tank / Kala Oya Basin / Mahaweli / Lunuwewa
(Location: IWMI HQ Call no: 631.7 G744 DAY Record No: H040719)
(0.54 MB)
4 Bandara, K. R. N. 2006. Development issues, options and alternatives of water resources management in Kala Oya Basin. 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.107-116.
River basin management ; Tanks ; Irrigation programs ; Canals ; Water demand ; Domestic water ; Irrigation water ; Water transfer / Sri Lanka / Kala Oya Basin / Anuradhapura / Kurunegala / Matale / Puttalam
(Location: IWMI HQ Call no: 631.7 G744 DAY Record No: H040727)
5 Saleth, Rathinasamy Maria; Dinar, Ariel. 2007. Impact synergies, institutions, and food security: an evaluation methodology with empirical results. Paper presented at the Brownbag Seminar at IFPRI, Washington DC, USA, 29 October 2007. 61p.
(Location: IWMI HQ Call no: IWMI 338.19 G744 SAL Record No: H040796)
(1.00 MB)
6 Saleth, Rathinasamy Maria; Dinar, A.; Neubert, S.; Kamaiah, B.; Manoharan, S.; Abayawardana, Sarath; Ariyaratne, B. Ranjith; de Silva, S. 2007. Institutions, impact synergies and food security: a methodology with results from the Kala Oya Basin, Sri Lanka. Colombo, Sri Lanka: International Water Management Institute (IWMI). 46p. (IWMI Research Report 124) [doi: https://doi.org/10.3910/2009.123]
Institutional development ; Development plans ; Development policy ; Impact assessment ; River basins ; Food security ; Models / Sri Lanka / Kala Oya Basin
(Location: IWMI HQ Call no: IWMI 338.1 G744 SAL Record No: H040802)
(677 KB)
The success of development programs depends on the role of underlying institutions and the impact synergies from closely related programs. Existing literature has limitations in accounting for these critical factors. This paper fills this gap by developing a methodology, which can quantify both the institutional roles in impact generation and the impact synergies from related programs. The methodology is applied to the Kala Oya Basin in Sri Lanka for evaluating the impacts of three development programs and 11 institutions on food security. The results provide valuable insights on the relative roles of institutions and the varying flow of impact synergies both within and across impact pathways.
7 Ranatunga, A. S.; Perera, M. P.; Gunawardene, A. M. T.; Abeysekera, W. A. T.; Perera, U. L. J. 1979. An analysis of the pre-Mahaweli situation in H4 and H5 areas in Kala-Oya basin. Colombo, Sri Lanka: Agrarian Research and Training Institute (ARTI) 125p. (ARTI Research Study 33)
River basins ; Households ; Income ; Manpower ; Livestock ; Rice ; Cultivation ; Crop yield ; Infrastructure ; Farming systems ; Fertilizer ; Pest control ; Disease control ; Farmland ; Rural areas ; Rural population ; Employment ; Socioeconomic development ; Land use ; Land tenure ; Farmers ; Highlands / Sri Lanka / Mahaweli River / Mahaweli H System / Kala Oya Basin
(Location: IWMI HQ Call no: 551.483 G744 RAN Record No: H046315)
(0.10 MB)
8 Silva, E. I. L.; Manthrithilake, Herath; Pitigala, D.; Silva, E. N. S. 2014. Environmental flow in Sri Lanka: ancient anicuts versus modern dams. Sri Lanka Journal of Aquatic Sciences, 19:3-14. [doi: https://doi.org/10.4038/sljas.v19i0.7447]
Environmental flows ; River basin development ; Stream flow ; Irrigation systems ; Hydraulic structures ; Traditional technology ; Dams ; Weirs ; Reservoirs ; Water power ; Tributaries ; Diversion ; Modernization ; History / Sri Lanka / Mahaweli River Basin / Walawe River Basin / Kala Oya Basin / Yan Oya Basin / Maduru Oya Basin / Polgolla Dam / Neela Bemma Dam
(Location: IWMI HQ Call no: e-copy only Record No: H048033)
(0.65 MB) (660 KB)
Environmental flow describes the stream flow (quantity and regime) required to sustain upstream and downstream habitats, riparian vegetation, human livelihoods and wildlife. When natural rivers or tributaries are held back by weirs, anicuts, barrages or dams, for a variety of purposes such as diversion for irrigation, hydropower generation or flood control often the downstream flow requirement is ignored or neglected. Although there is no universally accepted definition, convention or law on environmental flow, it has been now recognized that environmental flow is essential for sustainability of riparian ecosystem and their services, which are essential for our own existence, livelihoods and many more. This paper looks at physical structures constructed across rivers and tributaries in Sri Lanka since ancient times to date (including mini-hydro power stations) with a view to understand whether simple ancient wisdoms are more appropriate than modern structures for nature conservation. There are tangible evidence to defend that the ancient anicuts known as “amuna” surged sufficient water in tributaries and rivers, to sustain the environment than modern engineering works which has created dead river beds immediately downstream in many streams and rivers.
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