River rehabilitation in Switzerland: scope, challenges and research.
Peter, A.; Kienast, F.; Woolsey, S.
In Switzerland the river rehabilitation potential is very high. Approximately 25,600 km of streams and rivers require rehabilitation (43 % of the total stream/river length). In order to improve habitats, connectivity, biodiversity and ecological services, large financial resources are needed in the near future. For social acceptance at an early phase clear ecological and societal goals must be set and the involvement of stakeholders ensured. Along the Rivers Rhone and Thur extensive flood protection programmes with elements of river rehabilitation are being carried out. These are supported by a comprehensive transdisciplinary research project focusing on four main rehabilitation related topics: decision-making processes associated with rehabilitation programmes, local river widenings as principal rehabilitation measures, rehabilitation in river sections impacted by hydropeaking, and success evaluation after the completion of rehabilitation.