[Departement_IRSTEA]Territoires [TR1_IRSTEA]SEDYVINInternational audienceIn the past few decades, restoration has widely developed thanks to a rather favourable context, in particular legally speaking and regulatory framework-wise both at the European and French levels. Rediscovering the mitigation hierarchy "Avoid, Minimize, Restore" written in a 1976 French law, and implementing the E.U habitats directives or the E.U. water framework directive and various nation-wide or local incentive policies, thus led to the development of restoration. Restoration projects are nevertheless also confronted with administrative, socio-economic or technical barriers. The nature of restoration actions themselves implies to take into account their impacts, w...