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

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Type: Working Paper
Author: Biggs, Trent W.; Gaur, Anju; Scott, Christopher; Thenkabail, Prasad; Gangadhara Rao, Parthasaradhi; Gumma, Murali Krishna; Acharya, Sreedhar; Turral, Hugh
Date: 2007
Agency: International Water Management Institute, Colombo, Sri Lanka
Series: IWMI Research Reports, no. 111
URI: https://hdl.handle.net/10535/3678
Sector: Water Resource & Irrigation
Region: Middle East & South Asia
Subject(s): river basins
water management
water resources
environmental change
water quality
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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