World Water Assessment Program case study, Ruhuna basins, Sri Lanka | Land Portal

Información del recurso

Date of publication: 
Diciembre 2004
Resource Language: 
ISBN / Resource ID: 
License of the resource: 

The "Ruhuna Basins" defined for this case study encompass three of the main rivers that flow through ancient Ruhuna, including the longest and most important river in the region, Walawe. The Ruhuna basins are important in the broader Sri Lankan context, the basin being the location of a major hydropower plant, irrigation schemes that make a significant contribution to national food production, and important nature reserves. However, even before the proposed development begins to be implemented, the basins are experiencing major water resources problems, clearly demonstrated by the recent drought that led to reduction of water supplies to agriculture, insufficient domestic water supply, and which contributed to nationwide power cuts upto 8 hours a day. These challenging issues motivated the Government of Sri Lanka to select the cluster of three important rivers, Walawe, Menik and Kirindi, and the smaller basins confined by them as the area for the case study for the World Water Assessment Program.

Autores y editores

Author(s), editor(s), contributor(s): 

Imbulana, K. A. U. S.
Droogers, Peter
Makin, Ian W.


The International Water Management Institute (IWMI) is a non-profit, scientific research organization focusing on the sustainable use of water and land resources in developing countries. It is headquartered in Colombo, Sri Lanka, with regional offices across Asia and Africa. IWMI works in partnership with governments, civil society and the private sector to develop scalable agricultural water management solutions that have a real impact on poverty reduction, food security and ecosystem health. IWMI is a member of CGIAR, a global research partnership for a food-secure future.

Proveedor de datos


CGIAR is the only worldwide partnership addressing agricultural research for development, whose work contributes to the global effort to tackle poverty, hunger and major nutrition imbalances, and environmental degradation.

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