Surface water body flowing waters, NGP 2021

Surface water bodies of the rivers (rivers) with a catchment area > 10 km² (basic and detailed classification) — section of water designated by the federal states for which the verification of environmental quality objectives is to be carried out in accordance with the WFD流域面积（catchment area）大于10平方千米的河流（rivers）地表水水体，涵盖基础分类与详细分类两类——此类水体为联邦州划定的、需依据WFD（水框架指令，Water Framework Directive）开展环境质量目标核查的水域区段。