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Global modeling of irrigation water requirements
Open accessAbstract
Currently, almost 90% of the global water consumption is for irrigation purposes, and more than 40% of the crops are produced under irrigated conditions. In order to assess the future water and food situation, it is therefore necessary to model irrigation water requirements. We present a global model of irrigation requirements, which is based on a new raster map of irrigated areas. With a spatial resolution of 0.5°, the model simulates the cropping patterns, the growing seasons, and the net and gross irrigation requirements, distinguishing two crops, rice and nonrice. Using long time series of monthly climatic variables, the irrigation requirements under present‐day climate conditions are computed, and the impact of climate variability is analyzed. The correspondence between model results and independent estimates of irrigation water use is judged to be good enough for applying the model in global and continental studies.
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Cited by
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Huijbregts, M. A. J., Steinmann, Z. J. N., Elshout, P. M. F., Stam, G., Verones, F., Vieira, M., Zijp, M., Hollander, A., & van Zelm, R. (2017) · The International Journal of Life Cycle Assessment · doi:10.1007/s11367-016-1246-y · Cited by 4,485
Global water crisis and future food security in an era of climate change
Hanjra, M. A., & Qureshi, M. E. (2010) · Food Policy · doi:10.1016/j.foodpol.2010.05.006 · Cited by 1,387
A global hydrological model for deriving water availability indicators: model tuning and validation
Döll, P., Kaspar, F., & Lehner, B. (2003) · Journal of Hydrology · doi:10.1016/s0022-1694(02)00283-4 · Cited by 1,174
Self-citationDevelopment and testing of the WaterGAP 2 global model of water use and availability
ALCAMO, J., DÖLL, P., HENRICHS, T., KASPAR, F., LEHNER, B., RÖSCH, T., & SIEBERT, S. (2003) · Hydrological Sciences Journal · doi:10.1623/hysj.48.3.317.45290 · Cited by 877
Self-citationWada, Y., Wisser, D., & Bierkens, M. F. P. (2014) · Earth System Dynamics · doi:10.5194/esd-5-15-2014 · Cited by 873
Metadata
- Authors
- Döll, P., & Siebert, S.
- Venue
- Water Resources Research
- Publisher
- American Geophysical Union (AGU)
- Published
- 2002-04
- Volume
- 38
- Issue
- 4
- ISSN
- 0043-1397 (ISSN-L)
- 1944-7973
- OpenAlex
- W1677549105
- Cited by
- 816
- References
- 0
- FWCI
- 18.27
- Type
- journal article
- Language
- en
- Open access
- bronze
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
