Closing of the Krishna Basin: irrigation, streamflow depletion and macroscale hydrology

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. Mo...

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Bibliographic Details
Main Authors: Biggs, Trent W., Gaur, Anju, Scott, C., Thenkabail, Prasad S., Gangadhara Rao, Parthasaradhi, Gumma, Murali K., Acharya, Sreedhar, Turral, Hugh
Format: Informe técnico
Language:Inglés
Published: International Water Management Institute 2007
Subjects:
Online Access:https://hdl.handle.net/10568/39898
Description
Summary: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.