太湖流域是我国经济最发达的地区之一,流域社会经济发展迅速,经济总量在全国占重要地位。由于长期以来主要依靠增加资源和劳动力投入,过度消耗自然资源和破坏生态环境来发展经济,已导致生态环境急剧恶化,特别是水体污染与富营养化日趋严重。通过对太湖流域主要湖泊、主要入湖河道及出湖河道野外采样化验分析,掌握了太湖流域河湖水质的最新状况,河湖富营养化的空间分布、河网之间、河湖之间相互关系。研究表明,太湖流域河流、湖泊富营养化现象依然十分严重,湖泊水质优于河道水质,出湖河道优于入湖河道。污染治理措施不足,太湖“零点”行动未从根本上改善太湖水质等是太湖流域水环境污染的根本原因。提出建立太湖流域新的河网水系、治湖与治河相结合、加大引江入湖的力度等治理太湖流域水环境的建议。

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.