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Water 2017, 9(5), 343; doi:10.3390/w9050343

Cost-Benefit Analysis of the Managed Aquifer Recharge System for Irrigation under Climate Change Conditions in Southern Spain

1
Department of Polytechnic Sciences, Escuela Universitaria Politécnica, UCAM Universidad Católica San Antonio de Murcia, Campus de los Jerónimos, 135, Murcia 30107, Spain
2
Department of Social, Legal and Business Sciences, Escuela Universitaria Politécnica, UCAM Universidad Católica San Antonio de Murcia, Campus de los Jerónimos, 135, Murcia 30107, Spain.
3
Business Management, Universidad Carlos III de Madrid, Madrid 28903, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Julio Berbel, Carlos Gutiérrez-Martín and Julia Martin-Ortega
Received: 24 March 2017 / Revised: 4 May 2017 / Accepted: 9 May 2017 / Published: 12 May 2017
(This article belongs to the Special Issue Water Economics and Policy)
View Full-Text   |   Download PDF [1154 KB, uploaded 12 May 2017]   |  

Abstract

Droughts and climate change in regions with profitable irrigated agriculture will impact groundwater resources with associated direct and indirect impacts. In the integrated water resource management (IWRM), managed aquifer recharge (MAR) offers efficient solutions to protect, conserve, and ensure survival of aquifers and associated ecosystems, as the Water Framework Directive requires. The purpose of this paper is to analyse the socio-economic feasibility of the MAR system in the overexploited Boquerón aquifer in Hellín (Albacete, Spain) under climate change and varying irrigation demand conditions. To assess, in monetary terms, the profitability of the MAR system, a cost-benefit analysis (CBA) has been carried out. The results for the period 2020–2050 showed that the most favourable situations would be scenarios involving artificial recharge, in which future irrigation demand remains at the present level or falls below 10% of the current irrigation surface, as these scenarios generated an internal rate of return of between 53% and 57%. Additionally, the regeneration of the habitat will take between 5 and 9 years. Thus, the IWRM with artificial recharge will guarantee the sustainability of irrigation of the agricultural lands of Hellín and will achieve water balance even in severe climate change conditions. View Full-Text
Keywords: aquifer overexploitation; managed aquifer recharge; climate change; decision support system; cost-benefit analysis; irrigation aquifer overexploitation; managed aquifer recharge; climate change; decision support system; cost-benefit analysis; irrigation
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Rupérez-Moreno, C.; Pérez-Sánchez, J.; Senent-Aparicio, J.; Flores-Asenjo, P.; Paz-Aparicio, C. Cost-Benefit Analysis of the Managed Aquifer Recharge System for Irrigation under Climate Change Conditions in Southern Spain. Water 2017, 9, 343.

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