三峡库区消落带的生态环境问题及其调控

长江三峡水库蓄水运行后将出现一个落差达30m的消落带,探讨了水库运行过程中消落带可能产生的一系列严峻的生态与环境问题,如:岸边污染带的形成、可能诱发流行性病情和疫情的发生、消落带的环境地质灾害加剧、消落带植物多样性受损、生态系统更为脆弱等,并针对这些问题的产生原因、时空分布特征及趋势,提出了有针对性的防治措施。

Main ecological and environmental problems of water-level-fluctuation zone(WLFZ)in Three Gorges reservoir and their controlling measures

After the accomplishment of Three Gorges Project, a 30-meter-high water-level-fluctuationg zone will appear along both banks, and become a kind of seasonal humid ecosystem. This paper, according to the program to store water of Three Gorges reservoir, explores the ecological and environmental problems which will probably appear in WLFZ as follows: formation of contaminated zone along both banks, appearance of epidemic diseases in reservoir area(including Chongqing urban districts), aggravation of geologic disaster, injury of biodiversity and intensifying ecosystem fragility, etc.. To aim at the causes, time-space distribution features and trends of ecological and environmental problems existing probably in WLFZ of Three Gorges reserovir, the author puts forward six items of corresponding countermeasures.