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Comment appliquer la directive nitrates et à quel coût ? Une modélisation spatiale du marché de l’épandage

Author

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  • Mélanie Tauber
  • Philippe Le Goffe
  • Fabien Djaout

Abstract

[eng] In Brittany, animal concentration is responsible for water pollution. French water policy does not comply with the EU Water Framework Directive – in contrast to northern European countries, where the “ polluter pays ” principle has stimulated manure markets. We estimate the cost of the Nitrate Directive and simulate manure markets in Brittany. A linear model minimizes the cost of manure management constrained by the Nitrate Directive. Farms process or export their manure in the short run and reduce their livestock in the long run, by 20 % to 40 % depending on species. A manure market generates significant savings compared with a no-trade situation or a regional livestock-preservation plan. [fre] En Bretagne, la concentration des élevages est responsable de la pollution de l’eau. La politique française de l’eau n’est pas conforme à la directive européenne, à la différence des pays du nord où le principe pollueur-payeur a stimulé les marchés de l’épandage. Notre objectif était de chiffrer le coût de la directive nitrates et de simuler le fonctionnement des marchés de l’épandage en Bretagne. Un modèle linéaire minimise le coût de gestion des effluents d’élevage sous contrainte de la directive nitrates. Les élevages traitent ou exportent leurs effluents à court terme et réduisent leur cheptel à long terme, de 20 à 40 % selon les espèces. Le marché procure des économies importantes par rapport à l’absence d’échanges ou un plan de maintien de l’élevage.

Suggested Citation

  • Mélanie Tauber & Philippe Le Goffe & Fabien Djaout, 2009. "Comment appliquer la directive nitrates et à quel coût ? Une modélisation spatiale du marché de l’épandage," Économie et Prévision, Programme National Persée, vol. 188(2), pages 43-60.
  • Handle: RePEc:prs:ecoprv:ecop_0249-4744_2009_num_188_2_7899
    DOI: 10.3406/ecop.2009.7899
    Note: DOI:10.3406/ecop.2009.7899
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    Cited by:

    1. Letort, Elodie & Dupraz, Pierre & Piet, Laurent, 2017. "The impact of environmental regulations on the farmland market and farm structures: An agent-based model applied to the Brittany region of France," Working Papers 253784, Institut National de la recherche Agronomique (INRA), Departement Sciences Sociales, Agriculture et Alimentation, Espace et Environnement (SAE2).

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