Suchergebnisse

International audience ; Since the Millennium Ecosystem Assessment, the concept of ecosystem service (ES) has been increasingly used by scientists and policy makers. For example, the European Union launched an extensive mapping program of ES mapping in all Member countries. The objective of this paper is i) to examine the relevance and feasibility of the assessment of ES delivered by grasslands using indicators, and 2) to question whether it is necessary or not to adapt them to ecoclimatic regions and landuse systems. Firstly, we show that the concept of ecosystem service has not achieved consensus, which complicates its implementation. Based on case studies in different European regions (Continental, Atlantic, Mediterranean, Nordic), and on results from European research projects which have referred to the development of ES indicators, we show the diversity of possible approaches. This diversity concerns various aspects: the objectives of the indicators, the beneficiaries of the ES, spatial and temporal scales, organization levels. In conclusion, we think that it is necessary to develop ES indicators adapted to ecoclimatic and land-use conditions. The issue of ES is a global issue, and thus it appeared desirable to find common indicators in order to compare the systems, but to adapt the calculation to specific conditions.

International audience ; Since the Millennium Ecosystem Assessment, the concept of ecosystem service (ES) has been increasingly used by scientists and policy makers. For example, the European Union launched an extensive mapping program of ES mapping in all Member countries. The objective of this paper is i) to examine the relevance and feasibility of the assessment of ES delivered by grasslands using indicators, and 2) to question whether it is necessary or not to adapt them to ecoclimatic regions and landuse systems. Firstly, we show that the concept of ecosystem service has not achieved consensus, which complicates its implementation. Based on case studies in different European regions (Continental, Atlantic, Mediterranean, Nordic), and on results from European research projects which have referred to the development of ES indicators, we show the diversity of possible approaches. This diversity concerns various aspects: the objectives of the indicators, the beneficiaries of the ES, spatial and temporal scales, organization levels. In conclusion, we think that it is necessary to develop ES indicators adapted to ecoclimatic and land-use conditions. The issue of ES is a global issue, and thus it appeared desirable to find common indicators in order to compare the systems, but to adapt the calculation to specific conditions.