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Green water fraction (%) of total crop water consumption, 1971–2000 average.

Map description and dataset provided by: Potsdam Institute for Climate Impact Research

DescriptionFractional Green Water Consumption

Green water consumption dominates agricultural water consumption in most regions of the world. Blue water consumption predominates in intensively irrigated regions only, such as in northern India, Pakistan, the Near East, the lower Nile region and the western U.S. On irrigated land, almost a third of the globally consumed water is green by origin.

Interpretation

The dominance of green water in global agricultural water consumption results primarily from the fact that the majority of agricultural areas is rainfed. Green water also plays a role on irrigated land, because blue irrigation water is supplied and consumed there only to the extent that green (precipitation) water is not sufficient to sustain optimal crop growth.

Source

The dataset for this map was provided by: Dieter Gerten, Stefanie Jachner, Potsdam Institute for Climate Impact Research

Background

The dataset has been produced within the project “Consistent assessment of global green, blue and virtual water fluxes in the context of food production: Regional stresses and worldwide teleconnections”, funded by the German Research Foundation (DFG). This project is endorsed as a partner project of the GWSP.

Citation

Please cite this map as: "GWSP Digital Water Atlas (2008). Map 62: Fractional Green Water Consumption (V1.0). Available online at http://atlas.gwsp.org."

Contact Information

Dr. Dieter Gerten, Potsdam-Institute for Climate Impact Research, Earth System Analysis Research Domain, P.O. Box 60 12 03, 14412 Potsdam, Germany; E-mail: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

 
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