taxe (1) recherche (1) prix (1) pollution (1) politique (1) azote (1) nitrate (1) modèle (1) marché (1) gestion (1) perte (1) lixiviation (1) affectation des sols (1) analyse (1) golfe (1) ferme (exploitation) (1) économie (1) science économique (1) Mexique (1) Wetland restoration (1) Instruments (1) Value (1) Research (1) Weight loss (1) Prices (1) Pollution (1) Nitrogen (1) Must (1) Mississippi River (1) Mexico, Gulf of (1)