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Erschienen in: Hydrogeology Journal 5/2012

01.08.2012 | Paper

To what extent do improved irrigation technologies extend aquifer life?

verfasst von: C. J. Perry, P. J. G. J. Hellegers

Erschienen in: Hydrogeology Journal | Ausgabe 5/2012

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Abstract

World financial support for Yemen has concentrated on improved irrigation technology as the primary means to reduce the rate of overexploitation of Yemen’s aquifers. An analysis of the impact of such investments on cumulative water abstraction, water savings and the life of an aquifer is presented. It shows that these investments have limited potential to extend aquifer life. The returns are highest in areas with significant remaining resources, and are not attractive in the most severely stressed areas. The analysis also shows that improved irrigation technologies increase the profitability of pumping for the farmer, exacerbating problems of over-abstraction. Finally, it shows that water savings depend on the hydrogeological situation. The policy implications of these findings are discussed in relation to Yemen, an exceptionally water-short country where most of the aquifers in groundwater-irrigated areas are severely over-drafted.

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Literatur
Zurück zum Zitat Caswell M, Zilberman D (1986) The effects of well depth and land quality on the choice of irrigation technology. Am J Agric Econ 68(4):798–811CrossRef Caswell M, Zilberman D (1986) The effects of well depth and land quality on the choice of irrigation technology. Am J Agric Econ 68(4):798–811CrossRef
Zurück zum Zitat Hellegers PJGJ, Perry CJ, Al-Aulaqi N, Al-Eryani AR, Al-Hebshi M (2008) Incentives to Reduce Groundwater Consumption Extraction in Yemen. LEI report 2008-058, LEI-Wageningen UR, The Hague, The Netherlands. Hellegers PJGJ, Perry CJ, Al-Aulaqi N, Al-Eryani AR, Al-Hebshi M (2008) Incentives to Reduce Groundwater Consumption Extraction in Yemen. LEI report 2008-058, LEI-Wageningen UR, The Hague, The Netherlands.
Zurück zum Zitat IWMI (2006) Choosing appropriate responses to groundwater depletion. International Water Management Institute, Colombo IWMI (2006) Choosing appropriate responses to groundwater depletion. International Water Management Institute, Colombo
Zurück zum Zitat Japanese International Cooperation Agency (JICA) (2007) The study for the water resources management and rural water supply improvement in the republic of Yemen, water resources management action plan for Sana’a Basin. Earth System Science Co and Japan Techno, Tokyo Japanese International Cooperation Agency (JICA) (2007) The study for the water resources management and rural water supply improvement in the republic of Yemen, water resources management action plan for Sana’a Basin. Earth System Science Co and Japan Techno, Tokyo
Zurück zum Zitat Zilberman D, Lipper L (1999) The economics of water use. In: van den Bergh JCJM (ed) Handbook of environmental and resource economics. Elgar, Cheltenham, UK Zilberman D, Lipper L (1999) The economics of water use. In: van den Bergh JCJM (ed) Handbook of environmental and resource economics. Elgar, Cheltenham, UK
Metadaten
Titel
To what extent do improved irrigation technologies extend aquifer life?
verfasst von
C. J. Perry
P. J. G. J. Hellegers
Publikationsdatum
01.08.2012
Verlag
Springer-Verlag
Erschienen in
Hydrogeology Journal / Ausgabe 5/2012
Print ISSN: 1431-2174
Elektronische ISSN: 1435-0157
DOI
https://doi.org/10.1007/s10040-012-0872-0

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