Economic Targeting of Agricultural Beneficial Management Practices to Address Phosphorus Runoff in Manitoba

摘要: The mechanisms used to deliver agricultural beneficial management practices (BMPs) can influence the performance of these policies. Research has suggested that agri-environmental instruments targeted based on specific economic or environmental characteristics improve policy performance. Using a case study approach, we evaluate relative different target subsidized water retention pond BMPs reduce phosphorus (P) runoff in an agriculture dominated subwatershed within Lake Winnipeg watershed southern Manitoba. were estimated establishment costs (cost targeting), total removal from surface (benefit and pond-specific benefit–cost ratios. targeting was simulated using predictions P adapted hydrology model site-specific construction land opportunity assembled geographic information system database. Targeting impact cost effectiveness delivery with being most cost-effective approach. Water ponds providing higher at lower smaller size previously for production value crops. Le ciblage economique des pratiques de gestion benefiques en pour remedier au ruissellement du phosphore Manitoba Les mecanismes utilises livrer (PGB) peuvent influencer la ces politiques. Des etudes suggerent que le d'instruments agroenvironnementaux base sur caracteristiques economiques ou environnementales precises peut ameliorer Au moyen d'etudes cas, nous evaluons divers cibler les PGB bassins d'eau subventionnes reduire dans un sous-bassin bassin Lac sud Les eaux ont ete ciblees fonction couts estimes d'etablissement (ciblage couts), l′elimination totale l'eau benefices), et ratios avantages-couts lies bassin. Le fut simule taux suppression specifique chaque obtenues partir d'une adaptation d'un modele hydrologique donnees systeme d'information geographique (SIG) contenant sites cout d'opportunite terrain. rentabilite mise œuvre politiques, cout-avantages etant l'approche plus rentable. ayant haut d'elimination moindre s'averaient petits terrains servi, auparavant, cultures valeur.