Exploring global irrigation patterns: A multilevel modelling approach
Globally, areas that are equipped for irrigation have almost doubled in size over the past 50years and further expansions are expected for the future, to meet a growing food demand. For developing countries, the Food and Agriculture Organization of the United Nations (FAO) expects these areas to be expanded by 40 million ha, by 2030. Knowledge about the constraints to irrigation and spatially explicit information about the potential for irrigation expansion, however, are lacking on a global scale. The objective of our study was to explain the global pattern of irrigated croplands and to identify cropping regions where irrigation is likely to be expanded. We accounted for biophysical determinants, such as humidity and slope, mainly at grid-cell level. Socio-economic and governance determinants, for example, Gross Domestic Product (GDP) and control of corruption, were primarily considered on a country level, given the limitations in availability of sub-national data and the role of national level governance in irrigation decisions. To identify the variability of the determinants within these two spatial levels, we conducted a multilevel analysis. This is a method employing regression models that explicitly account for hierarchically structured data. Results show significant variability in terms of irrigation. While 56% of the global variance in irrigation occurs between countries, 44% occurs within countries. Our results suggest that it is necessary to consider biophysical, socio-economic and governance information for identifying cropland areas that are likely to be under irrigation. Under current conditions, conversion from rainfed to irrigated cropland is most likely in eastern China, northern Africa, and parts of the Mediterranean region.
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- Veldkamp, A. & Fresco, L.O., 1997. "Reconstructing land use drivers and their spatial scale dependence for Costa Rica (1973 and 1984)," Agricultural Systems, Elsevier, vol. 55(1), pages 19-43, September.
- A. Hoekstra & A. Chapagain, 2007. "Water footprints of nations: Water use by people as a function of their consumption pattern," Water Resources Management, Springer, vol. 21(1), pages 35-48, January.
- Kumar, M. Dinesh & Singh, Om Prakash, . "Virtual water in global food and water policy making: is there a need for rethinking?," Papers published in Journals (Open Access) h036595, International Water Management Institute.
- Theesfeld, Insa, 2004. "Constraints on Collective Action in a Transitional Economy: The Case of Bulgaria's Irrigation Sector," World Development, Elsevier, vol. 32(2), pages 251-271, February.
- Overmars, Koen P. & Verburg, Peter H., 2006. "Multilevel modelling of land use from field to village level in the Philippines," Agricultural Systems, Elsevier, vol. 89(2-3), pages 435-456, September.
- Chapagain, A.K. & Hoekstra, A.Y. & Savenije, H.H.G. & Gautam, R., 2006. "The water footprint of cotton consumption: An assessment of the impact of worldwide consumption of cotton products on the water resources in the cotton producing countries," Ecological Economics, Elsevier, vol. 60(1), pages 186-203, November.
- Lise, Wietze, 2000. "Factors influencing people's participation in forest management in India," Ecological Economics, Elsevier, vol. 34(3), pages 379-392, September.
- M. Kumar & O. Singh, 2005. "Virtual Water in Global Food and Water Policy Making: Is There a Need for Rethinking?," Water Resources Management, Springer, vol. 19(6), pages 759-789, December.
- Shah, Tushaar & Molden, David J. & Sakthivadivel, Ramasamy & Seckler, David, 2000. "The global groundwater situation: overview of opportunities and challenges," IWMI Books, International Water Management Institute, number 113506.
- Wriedt, Gunter & van der Velde, Marijn & Aloe, Alberto & Bouraoui, Fayal, 2009. "A European irrigation map for spatially distributed agricultural modelling," Agricultural Water Management, Elsevier, vol. 96(5), pages 771-789, May.
- Shah, T. & Molden, D. & Sakthivadivel, R. & Seckler, D., 2000. "The global groundwater situation: Overview of opportunities and challenges," IWMI Books, Reports H025885, International Water Management Institute.
- Peter Verburg & Bas Eickhout & Hans Meijl, 2008. "A multi-scale, multi-model approach for analyzing the future dynamics of European land use," The Annals of Regional Science, Springer, vol. 42(1), pages 57-77, March.
- Takahiro Akita, 2003. "Decomposing regional income inequality in China and Indonesia using two-stage nested Theil decomposition method," The Annals of Regional Science, Springer, vol. 37(1), pages 55-77, 02.
- You, Liangzhi & Wood, Stanley & Wood-Sichra, Ulrike, 2009. "Generating plausible crop distribution maps for Sub-Saharan Africa using a spatially disaggregated data fusion and optimization approach," Agricultural Systems, Elsevier, vol. 99(2-3), pages 126-140, February.
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