Articles | Volume 19, issue 7
https://doi.org/10.5194/hess-19-3073-2015
https://doi.org/10.5194/hess-19-3073-2015
Research article
 | 
10 Jul 2015
Research article |  | 10 Jul 2015

Water savings potentials of irrigation systems: global simulation of processes and linkages

J. Jägermeyr, D. Gerten, J. Heinke, S. Schaphoff, M. Kummu, and W. Lucht

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Short summary
We present a process-based simulation of global irrigation systems for the world’s major crop types. This study advances the global quantification of irrigation systems while providing a framework for assessing potential future transitions in these systems, a prerequisite for refined simulation of crop yields under climate change. We reveal for many river basins the potential for sizeable water savings and related increases in water productivity through irrigation improvements.