水科学进展2025，Vol.36Issue(3)：469-480,12.DOI:10.14042/j.cnki.32.1309.2025.03.010
三峡水库旱限水位确定及运用方式
Determination and application of drought-limited water level of the Three Gorges Reservoir
摘要
Abstract
The Three Gorges Reservoir,a key project in the Yangtze River basin,plays a crucial role in drought prevention in the middle and lower reaches.However,the absence of scientific water-level indicators and targeted management rules for drought control in its operational scheduling has partially constrained the comprehensive utilization efficiency of water resources.To address these limitations,this study proposes the functional positioning of the drought-limited water level(DLWL)and a conceptual framework of its phased determination.A detailed methodology for establishing and implementing a phased DLWL is proposed based on three key perspectives,i.e.,temporary raising water levels during the flood season and reverse-order reduction during dry periods,and ensuring adequate water storage during replenishment periods.Taking 2022 as a reference year,the DLWL for the flood season is calculated as 156.6 m and daily DLWLs for the storage and dry periods are determined.A comparative analysis with current operational schemes reveals that implementing DLWL controls can effectively elevate reservoir levels through pre-storage at the end of the flood season,while enhancing both discharge flow and power generation during dry periods.The water level of the Three Gorges Reservoir can be effectively increased by 13.01 m,its maximum power generation capacity by 3.5 billion kW·h,and the number of days with water security in downstream industries by up to 34 d.This study serves as a technical reference for DLWL determination and implementation in the Three Gorges Reservoir and offers scientific support for DLWL application in large-scale comprehensive water conservancy projects in China.关键词
旱限水位/抗旱调度/调度规则/三峡水库Key words
drought-limited water level/drought resistant scheduling/dispatching rule/Three Gorges Reservoir分类
天文与地球科学引用本文复制引用
严子奇,刘至一,周祖昊,吴碧琼,周丽垚,曹辉,程雅平..三峡水库旱限水位确定及运用方式[J].水科学进展,2025,36(3):469-480,12.基金项目
中国长江电力股份有限公司项目(2423020036) （2423020036）
国家重点研发计划项目(2021YFC3000205) The study is financially supported by the China Yangtze Power Company Limited Project(No.2423020036)and the National Key R&D Program of China(No.2021YFC3000205). （2021YFC3000205）
