title: Solar-powered drip irrigation enhances food security in the Sudano-Sahel.
abstract: Meeting the food needs of Africa's growing population over the next half-century will require technologies that significantly improve rural livelihoods at minimal environmental cost. These technologies will likely be distinct from those of the Green Revolution, which had relatively little impact in sub-Saharan Africa; consequently, few such interventions have been rigorously evaluated. This paper analyzes solar-powered drip irrigation as a strategy for enhancing food security in the rural Sudano-Sahel region of West Africa. Using a matched-pair comparison of villages in northern Benin (two treatment villages, two comparison villages), and household survey and field-level data through the first year of harvest in those villages, we find that solar-powered drip irrigation significantly augments both household income and nutritional intake, particularly during the dry season, and is cost effective compared to alternative technologies.
authors.affiliation: Department of Environmental Earth System Science, Stanford University, Environment and Energy Building, 473 Via Ortega, Mail Code 4205, Stanford CA 94305-4205, USA. burney@stanford.edu
authors.forename: Jennifer
authors.initials: J
authors.lastname: Burney
authors.forename: Lennart
authors.initials: L
authors.lastname: Woltering
authors.forename: Marshall
authors.initials: M
authors.lastname: Burke
authors.forename: Rosamond
authors.initials: R
authors.lastname: Naylor
authors.forename: Dov
authors.initials: D
authors.lastname: Pasternak