水力发电学报2012,Vol.31Issue(5):163-172,10.
三峡工程运用后荆江与洞庭湖关系变化分析
Change in relationship of Jingjiang river and Dongting lake after operation of Three Gorges Project
摘要
Abstract
This article uses field data at the operation stage of Three Gorges reservoir to demonstrate changes in the relationship of the Jingjiang river and the Dongting lake caused by the reservoir impounding, in terms of water level responses in Jingjiang reach, changes in the runoff ratios of three Jingjiang-Dongting diversions, and water level responses at the Chenglingji station. Results show that in the upper Jingjiang, medium and low water levels have been lowered to some extent, while high level varied little. Similar responses in low water condition include a slight adjustment in the lower Jingjiang~ water level, little responses in the flows of three diversions, and a slight falling in the Chenglingji~s water level. During medium and lower water periods, however, the reservoir storage caused changes in all the three factors above. In summary, the river-lake relationship considered will maintain the present pattern at the Three Gorges operation stage.关键词
水沙动力学/变化/分析/荆江与洞庭湖关系Key words
water and sediment dynamics/change/analysis/relationship of Jingjiang river andDongting lake分类
建筑与水利引用本文复制引用
渠庚,郭小虎,朱勇辉,刘亚..三峡工程运用后荆江与洞庭湖关系变化分析[J].水力发电学报,2012,31(5):163-172,10.基金项目
水利部水利前期项目:三峡工程运用初期荆江河道演变与治理研究 ()
水利部公益性行业专项:大型水利枢纽工程下游河型变化机理研究 ()