引调水工程对调蓄湖泊生态环境的影响分析

Analysis of the Impact of Water Diversion Project on the Ecological Environment of Storage Lakes

引调水工程利用天然湖泊调蓄,将引起调蓄湖泊水文情势、水质发生一定变化,对与湖泊水环境关系密切的水生生物、湖滨植被、湿地鸟类产生影响。以金沙江某提水工程方案比选阶段利用拉市海调蓄方案为例,采用图形叠置法、类比分析法、生态机理法等方法,分析工程运行对拉市海水生生物、湖滨植被、湿地鸟类的影响,为引调水工程对调蓄湖泊的生态环境影响分析提供工作思路和方法借鉴,并为类似工程方案的科学决策提供参考。

The use of natural lakes for the regulation and storage of water diversion project will cause certain changes in the hydrological situation and water quality of the regulation and storage lakes,which will affect aquatic organisms,lakeside vegetation,and wetland birds that are closely related to the lake s water environment.Taking the utilization of Lashihai Lake as the water storage scheme of a water-lifting project of the Jinsha River in the scheme comparison and selection stage as the example,the graphical overlay method,analogy analysis method and ecological mechanism method are used to analyze the impact of project operation on the marine life,lakeside vegetation and wetland birds of Lashihai Lake.The analysis method can provide references on the ideas and methods for analyzing the impact of water diversion projects on the ecological environment of storage lakes,and references for the scientific decision-making of similar engineering schemes.