Smallholder groundwater irrigation in Sub-Saharan Africa: country-level estimates of development potential

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 count...

Full description

Bibliographic Details
Main Authors: Pavelic, Paul, Villholth, Karen G., Shu, Yunqiao, Rebelo, Lisa-Maria, Smakhtin, V.
Format: Book Chapter
Language:Inglés
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10568/130951
Description
Summary: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.