An integrated assessment framework for the analysis of multiple pressures in aquatic ecosystems and the appraisal of management options.

摘要: The contribution illustrates an integrated assessment framework aimed at evaluating the relationships between multiple pressures and water body status for purposes of river basin management. includes following steps. (1) Understanding how different affect bodies. This entails characterization biophysical state variables definition a causal relationship status. Therefore this step involves interaction experts bearing ecological understanding providing models to represent effect pressures. (2) Identifying relevant be addressed through appropriate measures improve (3) Evaluating reduction targets identified in basin, by weighting effort associated reducing individual potential benefits terms (4) Designing management creative process political discussion alternative options, balancing costs, effectiveness based on engineering economic analysis. (5) Simulating scenarios implementation programme order check their robustness against climate land use change. We discuss five steps framework, particularly science policy stages. review tools required each and, setting optimal pressure (step 3), we propose illustrate simplified multicriteria approach semi-quantitative assessment, which produces frontiers trade-offs spent measures, achievements.