Analysis on releasing and adsorption to the nutrients by sediment

The distribution of sediment in water is very broad,it has a strong sense of surface physical,chemical and biological functions on the nutritional pollutants entering the water environment,and it is the main carrier relocating the pollutants.The role of sediment and pollutants to water body will have an impact on the ecological environment.Based on the latest developments at home and abroad,this article overviews the forms of sediment and nutritional pollutants and the relationship of sediment and water quality,and gives an important analysis of factors that influents sediment adsorpting and releasing the nutritional pollutants,also shows some opinions for the existing problems.