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Analysing Andalusian Virtual Water Trade in an Input-Output Framework

  • Erik Dietzenbacher
  • Esther Velazquez

Dietzenbacher E. and Velazquez E. (2007) Analysing Andalusian virtual water trade in an input-output framework, Regional Studies 41, 1-12. Andalusian agricultural sectors are relatively small, but account for 90% of annual water consumption. More than 50% of the agricultural final demands is exported to other Spanish regions or abroad. Using the concept of virtual water within an input-output framework, it is found that a substantial part of Andalusian water consumption is embodied in its exports. Considering the virtual water content of its trade, Andalusia is a net exporter of water. Examining regional policy aspects, a reduction in the exports abroad of agricultural products yields considerable benefits in terms of water savings, while the negative effects are only moderate. Dietzenbacher E. et Velazquez E. (2007) Une analyse des echanges andalous d'eau virtuelle dans le contexte d'un tableau d'echanges interindustriels, Regional Studies 41, 1-12. Les secteurs agricoles andalous sont relativement petits mais expliquent 90% de la consommation d'eau. Plus de 50% de la demande finale agricole est exporte aux autres regions espagnoles ou a l'etranger. En employant la notion d'eau virtuelle dans le contexte d'un tableau d'echanges interindustriels, il s'avere qu'une part importante de la consommation andalouse d'eau s'explique par les exportations. Compte tenu de l'importance de l'eau virtuelle pour ses exportations, l'Andalousie s'avere une exportatrice nette d'eau. Sur le plan regional, une reduction des exportations a l'etranger des produits agricoles rapporte des retombees positives non-negligeables en termes des economies d'eau, tandis que les retombees negatives ne sont que limitees. Modeles des echanges interindustriels Eau virtuelle Echanges et perennite Dietzenbacher E. und Velazquez E. (2007) Analyse des virtuellen Wasserhandels in Andalusien in einem Input-Output-Rahmen, Regional Studies 41, 1-12. Die landwirtschaftlichen Sektoren Andalusiens sind relativ klein, machen aber 90% des jahrlichen Wasserverbrauchs aus. Mehr als 50% des landwirtschaftlichen Endbedarfs wird in andere spanische Regionen oder ins Ausland exportiert. Mit Hilfe des Konzepts von virtuellem Wasser innerhalb eines Input-Output-Rahmens kamen wir zum Ergebnis, dass ein erheblicher Teil des Wasserverbrauchs von Andalusien in den Exporten der Region verkorpert ist. Am virtuellen Wassergehalt seines Handels gemessen ist Andalusien ein Netto-Exporteur von Wasser. Bei einer Untersuchung der regionalpolitischen Aspekte zeigt sich, dass sich eine Verringerung des Auslandsexports von landwirtschaftlichen Erzeugnissen deutlich positiv auf die Wassereinsparungen auswirkt, wahrend die negativen Effekte nur massig ausfallen. Input-Output-Modelle Virtuelles Wasser Handel und Nachhaltigkeit Dietzenbacher E. y Velazquez E. (2007) Analisis del agua virtual de Andalucia segun una estructura de entrada-salida, Regional Studies 41, 1-12. Los sectores agricolas en Andalucia son relativamente pequenos pero representan el 90% del consumo anual de agua. Mas del 50% de las demandas agricolas finales son exportadas a otras regiones espanolas o al extranjero. Mediante el concepto del agua virtual dentro de una estructura de entrada-salida, observamos que una parte importante del consumo de agua en Andalucia se pierde en las exportaciones. Teniendo en cuenta el contenido de agua virtual en el comercio, Andalucia es un exportador neto de agua. Examinando los aspectos de la politica regional, observamos que una reduccion en las exportaciones extranjeras de los productos agricolas produce beneficios considerables en lo que respecta al ahorro mientras que los efectos negativos son solo moderados. Modelos de entrada-salida Agua virtual Comercio y sostenibilidad

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Article provided by Taylor & Francis Journals in its journal Regional Studies.

Volume (Year): 41 (2007)
Issue (Month): 2 ()
Pages: 185-196

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Handle: RePEc:taf:regstd:v:41:y:2007:i:2:p:185-196
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