Modeling soft institutional change and the improvement of freshwater governance in the coastal zone

摘要: The contribution of soft institutional change to improve freshwater governance in the coastal zone will be examined. Freshwater management seeks reduce losses due overexploitation common-pool resources provided by river catchments and their associated ecosystems. Due complexity system, improving performance one social-ecological system means searching for appropriate “soft” change. In Pertuis Charentais region, increasing scarcity summer threatens health ecosystem sustainability human activities, which depend on use natural resources. allocation among competing uses or concerns is a core issue integrated management. To address this issue, we have constructed an analytical framework that combines services approach with analysis resources, developed simulation tool based dynamic modeling approach. generates three kinds user conflict: (1) conflict between two extractive (irrigation drinking water), (2) conflicts (provisioning services) other (support, regulatory, cultural) freshwater, (3) competition within given activity sector (agriculture shellfish farming). Participation local managers led identification realistic changes might mitigate system. These possible were then as fixed exogenous parameters model. simulated scenarios suggest innovative collective arrangements involving farmers could alternative more restrictive top-down measures. This participatory experiment also illustrates potential exploring acceptable new arrangements.