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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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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.
Articles | Volume 19, issue 7
Hydrol. Earth Syst. Sci., 19, 3073–3091, 2015
https://doi.org/10.5194/hess-19-3073-2015
Hydrol. Earth Syst. Sci., 19, 3073–3091, 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 et al.

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Cited articles

Alexandratos, N. and Bruinsma, J.: World agriculture towards 2030/2050: the 2012 revision, Tech. Rep. 12, FAO, Rome, FAO, 2012.
Ali, H., Teang, L., Chee, K., Eloubaidy, A. F., and Senior, K. C. F.: Modeling water balance components and irrigation efficiencies in relation to water requirements for double-cropping systems, Agr. Water Manage., 46, 167–182, 2000.
Al-Said, F. a., Ashfaq, M., Al-Barhi, M., Hanjra, M. A., and Khan, I. A.: Water productivity of vegetables under modern irrigation methods in Oman, Irrig. Drain., 61, 477–489, https://doi.org/10.1002/ird.1644, 2012.
Amthor, J. S.: Terrestrial Higher-Plant Response to Increasing Atmospheric [CO2] in Relation to the Global Carbon-Cycle, Global Change Biol., 1, 243–274, https://doi.org/10.1111/j.1365-2486.1995.tb00025.x, 1995.
Belder, P., Rohrbach, D., Twomlow, S., and Senzanje, A.: Can drip irrigation improve the livelihoods of smallholders? Lessons learned from Zimbabwe, Global Theme on Agroecosystems Report no. 33., Tech. Rep. 33, International Crops Research Institute for the Semi-Arid Tropics, Bulawayo, Zimbabwe, 2007.
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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.
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