Solar-powered drip irrigation enhances food security in the Sudano-Sahel

被引：159

作者：

Burney, Jennifer ^{[1
,2
]}

Woltering, Lennart ^{[3
]}

Burke, Marshall ^{[4
]}

Naylor, Rosamond ^{[1
,2
]}

Pasternak, Dov ^{[3
]}

机构：

[1] Stanford Univ, Program Food Secur & Environm, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA

[3] Int Crops Res Inst Semi Arid Trop, Niamey, Niger

[4] Univ Calif Berkeley, Dept Agr & Resource Econ, Berkeley, CA 94720 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2010年 / 107卷 / 05期

关键词：

photovoltaic; poverty; agriculture; water use; Africa; ECONOMIC VIABILITY; REVOLUTION; WATER;

D O I：

10.1073/pnas.0909678107

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：1848 / 1853

页数：6

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