Zone nitrates (of the Prefectural Decree defining the programme of voluntary actions aimed at reducing the risk of soil erosion in certain sectors of the Seiche catchment area)

The European objectives of the Water Framework Directive for the Seiche watershed bring the time limit for achieving good water bodies to 2027. In order to accelerate the achievement of good ecological and chemical status of the rivers of the Quincampoix, Prunelay and Planche aux Merles, an action programme will be taken. This layer defines the contour of the “nitrates” zone on which measures are undertaken to improve fertilisation practices.