Approaches of Eutrophication Control for "Hongfeng Lake,Baihua Lake and Aha Reservoir" in Guizhou Plateau

Water environmental quality and the pollution character of deep-reservoirs were analyzed by the Hongfeng Lake,Baihua Lake and Aha Reservoir(referred to as "two lakes and one reservoir") located in Guizhou plateau of China,to find the protective way for those lakes.The results showed that the water quality,living beings,sediment were in different pollution situation in the same period,and water pollution fall behind bio-contaimination and sediment pollution.High load of exogenous nitrogen and phosphorus entered those lakes and high concentration of nutrients were accumulated in sediment.Environmental protection for those lakes was a system engineering in relating mechanism innovation,management,education,science and technology.