Analysing Andalusian Virtual Water Trade in an Input–Output Framework

Abstract

DIETZENBACHER E. and VELÁ ZQUEZ 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.Input -output models Virtual water Trade and sustainability DIETZENBACHER E. et VELÁ ZQUEZ E. (2007) Une analyse des échanges andalous d'eau virtuelle dans le contexte d'un tableau d'échanges 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 exporté aux autres régions espagnoles ou à l'étranger. En employant la notion d'eau virtuelle dans le contexte d'un tableau d'échanges interindustriels, il s'avère 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'avère une exportatrice nette d'eau. Sur le plan régional, une réduction des exportations à l'étranger des produits agricoles rapporte des retombées positives non-négligeables en termes des économies d'eau, tandis que les retombées négatives ne sont que limitées.Modèles des échanges interindustriels Eau virtuelle Echanges et pérennité DIETZENBACHER E. und VELÁ ZQUEZ E. (2007) Analyse des virtuellen Wasserhandels in Andalusien in einem Input -OutputRahmen, Regional Studies 41, 1-12. Die landwirtschaftlichen Sektoren Andalusiens sind relativ klein, machen aber 90% des jähr-lichen 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 verkörpert 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, während die negativen Effekte nur mäßig ausfallen.Input -Output-Modelle Virtuelles Wasser Handel und Nachhaltigkeit DIETZENBACHER E. y VELÁ ZQUEZ E. (2007) Análisis del agua virtual de Andalucía según una estructura de entrada-salida, Regional Studies 41, 1-12. Los sectores agrícolas en Andalucía son relativamen...

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