RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2004, Vol. 13 >> Issue (3): 277-281.

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EVALUATION ANALYSIS AND REMEDY STRATEGY FOR EUTROPHICATION IN WUHAN LAKE DONGHU

GAN Yi-qun(1)，GUO Yong-long(2)   

  • Received:1900-01-01 Revised:1900-01-01 Online:2004-05-20
  • Contact: GAN Yi-qun

Abstract: The water environment of Lake Donghu is polluted heavily as a result of population growth and economy development, and the problem of eutrophication is serious. Authors make the eutrophication evaluation in ten sections of Lake Donghu, and the results show that eutrophicated water are constitutes 62.21% of total water area, while the area of moderate eutrophication is 37.9%. Phosphorus is the principal factor of eutrophication in Lake Donghu, and spot pollution is the main source of the enrichment of phosphorus in water body; on the base of these, the authors analyze the current measures and existent problems of Lake Donghu. The remedy of Lake Donghu eutrophication should be different with sections. Firstly spot pollution source should be controlled thoroughly, and then the surface pollution source by artificial wetland; to the seriously eutrophicated sections, the bottom deposit should be dredged up to cut internal pollution. At the same time, the management of Lake Donghu must be strengthened, the environmental legislation enforced, and the environmental supervision intensified.

Key words: Lake Donghu, eutrophication, phosphorus, harness

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