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Faut-il s'inquiéter de la baisse du niveau des aquifères ?

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  • Jean-Pierre Amigues
  • Pascal Favard
  • Michel Moreaux

Abstract

[eng] Is there Cause for Concern over the Drop in Aquifer Levels ? . by Jean-Pierre Amigues, Pascal Favard and Michel Moreaux . This paper analyses the problems raised when managing continental aquifers replenished by the trickledown of surface water. These aquifers can be regarded as natural wells with a certain amount of regeneration capacity. The theory developed in this paper is that aquifers are gradually depleted due to their being used as wells. This is shown using different assumptions for the cost differences between using ground water reserves and surface water in a model that endogenises the labour supply required to exploit the resource. Our findings are shown to be robust by a thorough analysis of the model’s different parameter configurations (initial level of reserves, importance of replenishment and demand for the resource). . . [fre] L''objet du présent article est l'analyse des problèmes posés par la gestion des aquifères continentaux rechargés par le passage en nappe des eaux de surface. De tels aquifères peuvent être considérés comme des mines dotées d'une certaine capacité de régénération. La thèse développée dans l'article est que l'épuisement progressif des aquifères est une conséquence du caractère minier de ces ressources. Nous montrons ce résultat sous diverses hypothèses concernant les différentiels de coûts d''exploitation entre réserves en nappe et eaux de surface dans un modèle endogénéisant l'offre de travail nécessaire à l'exploitation de la ressource. L'analyse exhaustive de différentes configurations des paramètres du modèle (niveau initial des réserves, importance des recharges et demandes pour la ressource) démontre la robustesse de ce résultat.

Suggested Citation

  • Jean-Pierre Amigues & Pascal Favard & Michel Moreaux, 2001. "Faut-il s'inquiéter de la baisse du niveau des aquifères ?," Économie et Prévision, Programme National Persée, vol. 148(2), pages 127-139.
  • Handle: RePEc:prs:ecoprv:ecop_0249-4744_2001_num_148_2_6281
    Note: DOI:10.3406/ecop.2001.6281
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    1. Berck, Peter, 1981. "Optimal management of renewable resources with growing demand and stock externalities," Journal of Environmental Economics and Management, Elsevier, vol. 8(2), pages 105-117, June.
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