城市河流环境质量提升与生态景观恢复是新型城镇化和美丽人居环境建设的重要组成之一。河流沉积物作为营养物质与各类污染物重要的源和汇，沉积物中污染物的种类、时空分布、环境效应以及对河流生态系统乃至人体健康具有不可忽略的影响，深入研究污染物在河流沉积物中的赋存运移机理及其相互响应关系，对河流生态环境保护、城市生态文明建设等具有重要意义。
The improvement of the environmental quality of urban rivers and the restoration of ecological landscapes are one of the important components of new urbanization and the construction of beautiful human settlements. River sediment is an important source and sink of river nutrients and various pollutants, among which the types, temporal and spatial distribution of pollutants, environmental effects and impacts on river ecosystems and even human health cannot be ignored. In-depth study of the occurrence and transport mechanism of pollutants in river sediments and their mutual response relationship is of great significance to river ecological environmental protection and urban ecological civilization construction.
