东平湖水环境研究进展与展望

为系统了解东平湖水环境以及富营养化问题，并更好地治理和预防，通过实地调查和查阅文献的方法着重对东平湖水环境历史变迁、水质污染现状和富营养化状态、污染物来源等热点问题的研究进展进行了回顾。总结出历史时期东平湖水环境变迁主要受黄河影响，直到20世纪60年代之后才主要受人类活动影响。随大汶河而来的大量工业和生活污水等外源污染与沉积物再悬浮以及菹草死亡降解等内源污染共同作用下，使得现在的东平湖已发展为中富-富营养化湖泊。最后基于东平湖水环境和治理现状以及南水北调东线工程计划就东平湖水环境发展做出了展望。

Water Environment of Dongping Lake

To study the water environment and eutrophication of Dongping Lake and take effective measures to protect the lake, the history change of water environment, the present situation of water quality and eutrophication and pollutant sources of Dongping Lake were reviewed though field survey and literatures. The results showed that the changes of water environment of Dongping Lake were mainly influenced by the Yellow River before 1960s, and since then the change of the water environment of Dongping Lake was mainly influenced by human activity. Under the combined action of endogenous pollution such as sediment resuspension and degradation of dead Potamogeton crispus and exogenous pollution such as industrial anddomestic sewage, eutrophication of Dongping Lake had been developed into middle-to-rich level. Finally, the authors made an outlook for the future development of water environment of Dongping Lake based on the present situation of water environment governance and the plan of eastern route of south- to- north water transfer project.