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Evaluación del impacto de la tarifación del agua de riego sobre la sostenibilidad del regadío: una aproximación a través de indicadores sintéticos/Impact assessment of irrigation water pricing in irrigated agriculture sustainability: a composite indicators approach

  • GALLEGO-AYALA, JORDI

    ()

    (Departamento de Ingeniería Agrícola y Forestal. Universidad de Valladolid)

  • GÓMEZ-LIMÓN RODRÍGUEZ, JOSÉ A.

    ()

    (Departamento de Economía Agraria. Universidad de Valladolid. Telf.: 979 10 83 41/Fax: 979 10 83 01. Avda. de Madrid, 57 - 34071 Palencia.)

Registered author(s):

    La Directiva Marco de Aguas exige la introducción de tarifas para la recuperación de los costes del agua. Este trabajo analiza las consecuencias de la hipotética implementación de diferentes formas de tarifación del agua de riego (por superficie, volumétrica, binómica y por tramos), estudiando su impacto sobre la sostenibilidad de las zonas regables. La aplicación empírica realizada se ha centrado en la Comarca de Campos (Palencia). Con este propósito se han empleado modelos de simulación basados en la programación matemática positiva. La resolución de estos modelos ha permitido obtener, para cada escenario de tarifación, un conjunto multidimensional de indicadores de sostenibilidad (económicos, sociales y ambientales), a partir de los cuales se ha desarrollado un indicador sintético de sostenibilidad para el regadío. Los resultados obtenidos ponen de manifiesto cómo la puesta en funcionamiento de las distintas formas de tarifación generarían un efecto negativo sobre la sostenibilidad global del regadío, ya que empeorará sus sostenibilidad económica y social, proporcionando tan sólo ligeras mejoras ambientales. The Water Framework Directive makes compulsory the implementation of water tariffs in order to recover costs of water services. This work analyses the consequences of the hypothetical implementation of different instruments for irrigation water pricing (area, volumetric, two-part tariff and block-rate), studying their impact on the sustainability of irrigated areas. The empirical application done has been focused on Campos district, located in the province of Palencia (Spain). With this purpose, simulation models based on positive mathematical programming have been built. Running these models for each water-pricing scenario, a multidimensional set of sustainability indicators (economic, social and environmental ones) has been obtained. All these indicators have been used to construct a composite indicator to measure overall sustainable performance of irrigation farms. The results obtained show how pricing irrigation water will have a negative impact on farms’ sustainability, since their economic and socially sustainability will decline, inducing only a slight environmental improvement.

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    Article provided by Estudios de Economía Aplicada in its journal Estudios de Economía Aplicada.

    Volume (Year): 28 (2010)
    Issue (Month): (Agosto)
    Pages: 375-404

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    Handle: RePEc:lrk:eeaart:28_2_7
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    1. Varela-Ortega, Consuelo & Sumpsi, Jose M. & Garrido, Alberto & Blanco, Maria & Iglesias, Eva, 1998. "Water pricing policies, public decision making and farmers' response: implications for water policy," Agricultural Economics of Agricultural Economists, International Association of Agricultural Economists, vol. 19(1-2), September.
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    3. Ziv Bar-Shira & Israel Finkelshtain & Avi Simhon, 2006. "Block-Rate versus Uniform Water Pricing in Agriculture: An Empirical Analysis," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 88(4), pages 986-999.
    4. Key, Nigel D. & Kaplan, Jonathan D., 2007. "Multiple Environmental Externalities and Manure Management Policy," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 32(01), April.
    5. Tsur, Yacov & Dinar, Ariel, 1997. "The Relative Efficiency and Implementation Costs of Alternative Methods for Pricing Irrigation Water," World Bank Economic Review, World Bank Group, vol. 11(2), pages 243-62, May.
    6. Henseler, Martin & Wirsig, Alexander & Herrmann, Sylvia & Krimly, Tatjana & Dabbert, Stephan, 2009. "Modeling the impact of global change on regional agricultural land use through an activity-based non-linear programming approach," Agricultural Systems, Elsevier, vol. 100(1-3), pages 31-42, April.
    7. Ottmar R�hm & Stephan Dabbert, 2003. "Integrating Agri-Environmental Programs into Regional Production Models: An Extension of Positive Mathematical Programming," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 85(1), pages 254-265.
    8. Berbel, J. & Rodriguez-Ocana, A., 1998. "An MCDM approach to production analysis: An application to irrigated farms in Southern Spain," European Journal of Operational Research, Elsevier, vol. 107(1), pages 108-118, May.
    9. Michael Freudenberg, 2003. "Composite Indicators of Country Performance: A Critical Assessment," OECD Science, Technology and Industry Working Papers 2003/16, OECD Publishing.
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