Articles | Volume 24, issue 6
Hydrol. Earth Syst. Sci., 24, 3015–3031, 2020
Hydrol. Earth Syst. Sci., 24, 3015–3031, 2020

Research article 09 Jun 2020

Research article | 09 Jun 2020

Changing global cropping patterns to minimize national blue water scarcity

Hatem Chouchane et al.

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Cited articles

Allan, J. A.: Virtual Water: A strategic resource global solutions to regional deficits, Ground Water, 36, 545–546,, 1998. 
Bouman, B. A. M.: A conceptual framework for the improvement of crop water productivity at different spatial scales, Agr. Syst., 93, 43–60,, 2007. 
Brown, T. C., Mahat, V., and Ramirez, J. A.: Adaptation to Future Water Shortages in the United States Caused by Population Growth and Climate Change, Earth's Future, 7, 219–234,, 2019. 
Chapagain, A. K., Hoekstra, A. Y., and Savenije, H. H. G.: Water saving through international trade of agricultural products, Hydrol. Earth Syst. Sci., 10, 455–468,, 2006. 
Chouchane, H., Krol, M. S., and Hoekstra, A. Y.: Expected increase in staple crop imports in water-scarce countries in 2050, Water Res., 1, 100001,, 2018. 
Short summary
Previous studies on water saving through food trade focussed either on comparing water productivities among countries or on analysing food trade in relation to national water endowments. Here, we consider, for the first time, both differences in water productivities and water endowments to analyse national comparative advantages. Our study reveals that blue water scarcity can be reduced to sustainable levels by changing cropping patterns while maintaining current levels of global production.