Grand cycle de l’eau, évaluation des services écosystémiques et aménagement du territoire : un premier retour d’expérience

Integrated water cycle management requires the development of new approaches to assess the contributions of ecosystems to the protection and regulation of water resources, natural risk prevention, climate change mitigation and biodiversity conservation. One way to address this challenge is to test methods of ecosystem services integrated assessment and mapping, in which various stakeholders are involved in an iterative process of construction and discussion of the results. Lyonnaise des Eaux and UMR AMURE have been experimenting such an approach in Bordeaux for more than one year, in collaboration with the Nature Division of Bordeaux local authorities. This article begins by giving the general background of the research on ecosystem services. It then describes the current experience in Bordeaux, the methods used and the first results.