Water quality biological — ecotopes Rijkswateren — planes third cycle (RWS)

From the Maas, the Rijntakken-East, the Rijn-Maasmonding, the Volkerak-Zoommeer and the IJsselmeer area, an ecotope map is delivered every 6 years. An ecotope map is built by merging multiple layers of information, such as a vegetation structure map, a water depth map, a flooding chart, etc. The vegetation structure map is the most important layer. This map is produced using aerial photographs on a scale of 1:10.000. An ecotope is defined as a spatially bound ecological unit, whose composition and development are determined by abiotic, biotic and anthropogenic aspects together. The 3 rd cycle of mapping has the implementation period from 2008 to 2013.