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The paradox of irrigation efficiency

Grafton, Quentin; Williams, John; Perry, C J; Molle, F; Ringler, Claudia; Steduto, Pasquale; Udall, B.; Wheeler, Sarah; Wang, Y.; Garrick, David; Allen, R. G.

Description

Reconciling higher freshwater demands with finite freshwater resources remains one of the great policy dilemmas. Given that crop irrigation constitutes 70% of global water extractions, which contributes up to 40% of globally available calories (1), governments often support increases in irrigation efficiency (IE), promoting advanced technologies to improve the “crop per drop.” This provides private benefits to irrigators and is justified, in part, on the premise that increases in IE...[Show more]

CollectionsANU Research Publications
Date published: 2018-08-24
Type: Journal article
URI: http://hdl.handle.net/1885/202928
Source: Science
DOI: 10.1126/science.aat9314

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