1. State Key Laboratory of Water Environment Simulation,School of Environmenta l,Beijing Normal University,Beijing 100875,China. 2. Key Laboratory for Water and Sediment Sciences of Ministry of Education,School of Environment,Beijing Normal University,Beijing 100875,China
Introduction The eutrophication of fresh w ater has becom e a m ain w ater environm ental problem in the w orld. The m ain negative im pacts of fresh w ater eutrophication are w ater quality deterioration and the decrease of hydrophytes and aquatic specie…