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Valuing Water in Irrigated Agriculture and Reservoir Fisheries: A Multiple-Use Irrigation System in Sri Lanka

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Type: Working Paper
Author: Renwick, Mary
Date: 2001
Agency: International Water Management Institute (IWMI), Colombo, Sri Lanka
Series: IWMI Research Report no. 51
URI: http://hdl.handle.net/10535/3748
Sector: Fisheries
Water Resource & Irrigation
Region: Middle East & South Asia
Subject(s): water resources
irrigation
agriculture
fisheries
multiple use
economic development
Abstract: "Although irrigation projects often provide water for more than crop irrigation, water allocation and management decisions often do not account for non-irrigation uses of water. Failure to account for the multiple uses of irrigation water may result in inefficient and inequitable water allocation decisions. Decision-makers often lack information on the relative economic contributions of water in irrigation and nonirrigation uses. This report addresses this problem. It examines the relative economic contributions of irrigated agriculture and reservoir fisheries in the Kirindi Oya irrigation system, located in southeastern Sri Lanka. The results of the analysis indicate the importance of both irrigated paddy production and reservoir fisheries to the local economy. They also demonstrate significant potential financial and economic gains to irrigated agriculture from improvements in water management practices. Since these water uses are interdependent, policy makers must consider how changes in water management practices may affect reservoir levels and water quality and the fisheries that depend on them."

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