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Article Dans Une Revue Water Année : 2023

Payment for Ecosystem Services: An Efficient Approach to Reduce Eutrophication?

Résumé

The CPES (Channel Payments for Ecosystem Services) project developed PES schemes remunerating farmers their activities in improving water quality by reducing the emissions of nutrients (both nitrogen and phosphorus) or erosion from agricultural activities. Catchment-wide approaches were tested six case studies, ecology, hydrogeology, agroeconomy, law, farming expertise was combined. Collaborations established with farmers, associations, chambers agriculture, local regional stakeholders. One study concerned Lac au Duc (Brittany), a reservoir suffering recurrent cyanobacterial blooms. Curative actions to control cyanobacteria had limited success. main sources excess P entering lake origin but varied between sub-catchments according hydrogeological characteristics practices. Long-term prevention possibilities ameliorate practices costs included permanent cover anti-erosive hedges. During project, PESs successfully applied ground protection supply companies as drinking has strong business preserve this ecosystem service. For recreational multi-purpose lakes reservoirs, it remains difficult find financing meet monetary requirements address farmer’s transition land management.
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hal-04301675 , version 1 (23-11-2023)

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Claudia Wiegand, Sara Hernandez, Morgane Le Moal, Gérard Gruau. Payment for Ecosystem Services: An Efficient Approach to Reduce Eutrophication?. Water, 2023, Water, 15 (22), pp.3871. ⟨10.3390/w15223871⟩. ⟨hal-04301675⟩
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