Water availability, demand and reliability of in situ water harvesting in smallholder rain-fed agriculture in the Thukela River Basin, South Africa
Water productivity in smallholder rain-fed agriculture is of key interest for improved food and livelihood security. A frequently advocated approach to enhance water productivity is to adopt water harvesting and conservation technologies (WH). This study estimates water availability for potential in situ WH, and supplemental water demand (SWD) in smallholder agriculture in South Africa’s Thukela River Basin (29 000 km2, mean annual precipitation 550–2000 mm yr−1). The study includes process dynamics governing runoff generation and crop water demands, quantification of prediction uncertainty, and an analysis of the reliability of in situ WH.
Title of publication: Hydrology and Earth System Sciences
Volume: 13
Issue: 12
ISSN: 1607-7938
Author: J. C. M. Andersson
Other authors: A. J. B. Zehnder , G. P. W. Jewitt , H. Yang
Year: 2009
Country/ies: South Africa
Geographical coverage: Africa
Type: Journal article
Full text available at: http://www.hydrol-earth-syst-sci.net/13/2329/2009/hess-13-2329-2009.pdf
Content language: English