Closing of the Krishna Basin: irrigation, streamflow depletion and macroscale hydrology
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International Water Management Institute
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Discharge from the Krishna River into the ocean decreased by 75 percent from 1960-2005, and was zero during a recent multi-year drought. This paper describes the physical geography and hydrology of the Krishna Basin, including runoff production and a basic water account based on hydronomic zones. More than 50 percent of the basin's irrigated area is groundwater irrigation, which is not currently included in inter-state allocation rules. Future water allocation will require inclusion of the interactions among all irrigated areas, including those irrigated by groundwater and surface water.
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river basins, physical geography, climate, stream flow, hydrology, rainfall runoff relationships, evapotranspiration, irrigation programs, water allocation, water transfer, environmental effects, water quality