Hydromorphology of rivers

Alteration of the morphology of watercourses is one of the main obstacles to the good environmental status of aquatic environments. If this essential factor is not taken into account in the restoration programmes, there is a risk that the restoration of the biological quality of the watercourses covered by the European framework directive will not be achieved. The OFB is leading the conduct of a diagnosis and the implementation of a national monitoring of the morphology of watercourses. The identification of the alterations that have the greatest impact on aquatic environments and the identification of pressure sources will make it possible to recommend conservation and restoration measures. Mapping and field data are collected in a national data bank and cross-referenced with information on the status of biological populations present in rivers. The aim is to establish a link between population status, habitat degradation and morphological alteration on a larger scale.河道（watercourses）形态改变是阻碍水生环境达成良好环境状态的主要障碍之一。若修复项目未考量这一关键因素，则可能无法实现《欧盟框架指令》覆盖河道的生物质量修复目标。 OFB正牵头开展河道形态诊断工作，并推进全国性河道形态监测体系的建设。明确对水生环境影响最为显著的河道形态改变类型，识别其压力来源，将有助于制定针对性的保护与修复措施。 河道测绘数据与野外调查数据均被收录至国家数据库，并与河流内现存生物种群状态的相关信息进行交叉关联。本数据集旨在更大尺度上建立生物种群状态、生境退化与河道形态改变之间的关联。