The research team analyses the values of the ecological infrastructure (EI) from a social, economic and ecological perspective. Using different scenarios, it assesses the potential development of a functioning ecological infrastructure and examines which instruments are necessary to ensure its sustainable use. When valuing the EI, the different perspectives of the stakeholders concerned, such as farmers and foresters, the general population, the municipal, cantonal and federal authorities or the environmental protection organisations, play a decisive role. Their perspectives and interests are integrated from the outset through participatory methods in the different research regions. Further information: plus.ethz.ch/research/forschungsprojekte/valpar-ch.html; valpar.ch