Economic and Social Impacts of Groundwater Overdraft: The Case of Iran

Gholamreza Soltani () and Mahmood Saboohi
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Gholamreza Soltani: Shiraz University, Iran

No 479, Working Papers from Economic Research Forum

Abstract: Excessive withdrawal of groundwater for irrigation raises the issue of the sustainability of irrigated agriculture in many MENA countries. The objective of this paper is to determine the magnitude of groundwater overdraft and its external costs in Iran. Both quantitative and qualitative impacts of groundwater overdraft are estimated. Optimal control models are used to determine the optimal use of groundwater considering the social cost of groundwater overuse. Assessing the impact of groundwater overdraft shows a gloomy picture — of groundwater resource depletion in the study areas. The findings imply a trade-off between meeting immediate population demand for food and the sustainability of groundwater based farming. For a country like Iran, using foreign exchange earnings to save its vital groundwater resources may be considered a wise investment.

Pages: 12 pages
Date: 2009-03, Revised 2009-03
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Published by The Economic Research Forum (ERF)

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