Water management options for food security in South Africa: scenarios, simulations and policy implications

Abdul Kamara and Hilmy Sally

Development Southern Africa, 2004, vol. 21, issue 2, 365-384

Abstract: Recent research activities of the International Water Management Institute on water and food security have led to the development of a user-friendly simulation model, Podium, to test national policy options on water allocation to different uses. This article presents an application of the model to South Africa, where water resources development and management constitute a high national priority. Data on demography, nutritional requirements, food imports and exports, climate and hydrology are used to create scenarios about meeting future water requirements for food production while simultaneously satisfying the water requirements of other sectors. The simulation results highlight the need to improve productivity in irrigation and also intensify rainfed agriculture to avoid future food insecurity, especially under high population projections. Merely expanding irrigated areas will not make significant impacts on national-level food security. There also appears to be scope for increasing domestic per capita water consumption without altering current diversions for agriculture and other requirements.

Date: 2004
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DOI: 10.1080/0376835042000219596

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