三峡工程施工期坝下游河段水质评价与自净规律研究  

Downstream River Stretch Water Quality Assessment of sanxia Dam and self puritfication Law Research during Construction

作　　者：李兰[1] 叶守泽[1] 

机构地区：[1]武汉水利电力大学,湖北武汉430072

出　　处：《水电站设计》2000年第3期90-94,共5页Design of Hydroelectric Power Station

基　　金：国家自然科学基金资助项目! (5 95 790 2 2 )

摘　　要：首先在三峡工程施工期污染源调查的基础上进行了坝下游河段水质现状的评价 ,结果表明三峡工程施工期对下游长江干流水质没有显著性影响。再根据坝下游三斗坪河段长期水质监测资料进行了水质年际变化规律的研究 ,结论是该河段水质年均值没有明显的趋势性变化规律。最后根据秭归县泄滩乡清水溪的一次突发性污染水团的追踪监测资料 ,利用水环境污染反问题模型和反演算法研究了三峡工程坝区下游河段水体的自净规律 。Firstly,on the basis of investigating pollution sources of Sanxia Project during construction,the water quality status quo at river stretch downstream of dam is evaluated.The result shows that the construction has no salient impact on Changjiang river downstream mainstream water quality.Then,the yearly variation law is researched for long term water quality monitoring data of downstream Sandouping stretch,that shows no significant tendency.At last,according to the tracing monitoring data of a suddenly occurred pollution water mass,the water self purification law is researched by using anti problem model and inverse calculation method,that shows strong water self purification capability of this river stretch.

关 键 词：水体 自净 施工期 河流 水质评价 三峡工程 

分 类 号：X824[环境科学与工程—环境工程]