Emergency Water Supply: Wetlands

A wetland is an area in which water is present in significant quantities and for a prolonged period of time over a large part of the year. There are many different types of wetland: marshes, ponds, peat bogs, alluvial environments, reed beds, etc. Wetlands are considered to be of public importance, as they regulate (store or release water), filter water and provide a vital ecosystem for many species. For a long time, wetlands were considered to be polluted environments of no interest whatsoever. By the end of the 20th century, as a consequence of urbanisation, changes in farming practices and hydraulic engineering (particularly drainage), wetlands had shrunk by more than 50%. Since 2017, Asters-CEN74 has been carrying out consultation work, maintenance and a management plan for the commune of Praz-sur-Arly with the SMBVA (Syndicat mixte du Bassin versant de l'Arly - Joint Association of the Arly catchment basin).