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The current water pollution of Taihu drainage basin and the new management proposals

LIU Zhao-de 1,2 ,YU Xiao-gan 1 ,WANG Zhi-xian 1,2 (1.Nanjing Institute of Geography&Limnology,CAS,Nanjing210008,China;2.Graduate School,The Chinese Academy of Sciences,Beijing100039,China)  
Taihu drainage basin is one of the most developed areas in China.With rapid social and economic development,the gross economy of the lake basin occupies an important position in the whole country.Because of mainly dependent on the input of resources and labour forces,and on the excess consumption of resources and the destruction of the eco-environment for the re-gion's economic development,the eco -environment has been drastically deteriorated,especially water body pollution and eutrophication are becoming increasingly serious.Through analyzing the field samples of the main lakes and channels in the Taihu drainage basin,we acquire the latest situation of water quality of the lakes and rivers in the Taihu drainage basin,the spatial distribution of eutrophication of the lakes and rivers,and the relationship between drainage net-work and rivers and lakes.Our research shows that the rich alimentation of lakes and rivers in Taihu drainage basin is still serious,the water quality coming out of the lakes is better than that of coming into the lakes.Lack of pollution prevention measures,the"zero action"of Taihu hav-ing not improved the water quality essentially is the fundamental reason for water pollution in the Taihu drainage basin.Suggestions on the establishment of the new networks of rivers and lakes in the Taihu drainage basin,integrated management of the lakes and rivers and intensifi-cation of the improvement and rectification of the water environment of the Taihu drainage basin are put forward.
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