Smallholder groundwater irrigation in Sub-Saharan Africa: country-level estimates of development potential
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Pavelic, Paul; Villholth, Karen G.; Shu, Yunqiao; Rebelo, Lisa-Maria; Smakhtin, Vladimir. 2013. Smallholder groundwater irrigation in Sub-Saharan Africa: country-level estimates of development potential. Water International, 38(4):392-407. (Special issue on "Sustainable groundwater development for improved livelihoods in Sub-Saharan Africa, Part 1" with contributions by IWMI authors). doi: http://dx.doi.org/10.1080/02508060.2013.819601
Permanent link to this item: http://hdl.handle.net/10568/40294
The abundance of groundwater resources of Sub-Saharan Africa is generally well recognized, but quantitative estimates of their potential for irrigation development are lacking. This study derives estimates using a simple and generic water balance approach and data from secondary sources for 13 countries. Even with conservative assumptions and accounting for water demands from other sectors, including the environment, a 120-fold increase (by 13.5 million hectares) in the area under groundwater irrigation is possible for the countries considered. This expansion could improve the livelihoods of approximately 40% of the present-day rural population.