江淮水利科技Issue(6)：9-14,6.DOI:10.20011/j.cnki.JHWR.202506002
巢湖建闸前后江湖交换关系及水文节律演变分析
Analysis of river-lake exchange relationships and hydrological rhythm evolution before and after the construction of the Chaohu Lake sluice
余千江 1谢三桃 2朱慧娈2
作者信息
- 1. 长江大学资源与环境学院油气地球化学与环境湖北省重点实验室,湖北 武汉 430100
- 2. 安徽省水利水电勘测设计研究总院有限公司,安徽 合肥 230088
- 折叠
摘要
Abstract
The evolution of river-lake interactions between Chaohu Lake and the Yangtze River and their hydrological regimes significantly impact watershed ecological security.To address the transformation of Chaohu Lake from a naturally connected river-lake system to a semi-closed regulated water body due to sluice construction,this study developed a MIKE11 hydrodynamic model to investigate the ecological effects of sluice operations on lake hydrology.The results demonstrated that sluice operations reduced the annual water exchange volume to merely 6.8%(120 million m3/a)of pre-sluice conditions,shifting natural water exchange to engineered regulation with dramatically decreased exchange frequency and volume.While pre-sluice water levels fluctuated synchronously with the Yangtze(maximum variation of 8.56 m),post-sluice levels became rigidly regulated(8.50～10.10 m)with significantly reduced variability.These findings provided critical references for optimizing river-lake interactions and ecological water level regulation in Chaohu Lake's comprehensive management.关键词
巢湖/江湖交换/水量交换/水位节律/闸坝建设Key words
Chaohu Lake/river-lake interaction/water volume exchange/water level regime/sluice gate construction分类
建筑与水利引用本文复制引用
余千江,谢三桃,朱慧娈..巢湖建闸前后江湖交换关系及水文节律演变分析[J].江淮水利科技,2025,(6):9-14,6.
