Closing of the Krishna Basin: Irrigation, Streamflow Depletion and Macroscale Hydrology

Abstract
"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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Keywords
river basins, wetlands, water management, irrigation, water resources, environmental change, water quality
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