Application of Grey Clustering Method in Eutrophication Evaluation for Urban Landscape River

摘要

Urban landscape river has become an important part of Chinese urbanization process. In this papar, on the basis of the water quality monitoring, gray clustering method which selects the indexs of SD, C0Dmn, TP and TN is used to evaluate the eutrophication of Tuohe River in Suzhou city. The results indicate that this method is simple and reliable. It can improve availability of information and the water quality of Tuohe River in Suzhou city had been placed in Middle-eutrophication (IV) that the management is urgent.