人民黄河2025，Vol.47Issue(3)：42-47,77,7.DOI:10.3969/j.issn.1000-1379.2025.03.007
黄河上游梯级水库运行对黄河干流水文情势的影响
Influence of the Cascade Reservoir Operation of the Yellow River on the Hydrological Regime of the Main Stream of the Yellow River
摘要
Abstract
In order to study the impact of the operation of cascade reservoirs in the upper reaches of the Yellow River on the hydrological re-gime of the downstream section,the Longyangxia Reservoir to Liujiaxia Reservoir section was taken as the research area,the Mann-Kendall mutation test was used to examine the years of abrupt changes in the average annual flow of the inflow and outflow hydrological stations(Tangnaihai,Guide,Xunhua,and Xiaochuan hydrological stations)from 1952 to 2021,the hydrological change index method-hydrological change range method(IHA-RVA method)was used to quantitatively evaluate the hydrological change degree of the monthly average flow of the inflow and outflow hydrological stations,Pearson correlation analysis method was used to evaluate the correlation between annual runoff and annual sediment discharge at the inflow and outflow hydrological stations.The results show that the flow of hydrological stations entering and leaving the reservoir exhibits periodic changes and overall increases,while the annual average flow of the upper reaches of the Yellow River undergoes a sudden change after the operation of the cascade reservoirs.After the operation of the reservoir,the monthly average flow of hydrological stations located upstream of the reservoir shows moderate to low changes,while the monthly average flow of hydrological stations located downstream of the reservoir shows moderate to high changes.The monthly average flow change is related to the"flood storage and dry discharge"operation mode of the reservoir.The annual sediment discharge of the inflow and outflow hydrological stations shows a decreasing trend,with the Tangnaihai Hydrological Station in the upstream showing the smallest decrease in sediment discharge,and the Xiaochuan Hydrological Station in the downstream showing the largest decrease in sediment discharge.The annual runoff is significantly positively corre-lated with the annual sediment discharge.关键词
水文情势/IHA-RVA法/Mann-Kendall突变检验/相关性/黄河上游梯级水库Key words
hydrological regime/IHA-RVA method/Mann-Kendall mutation test/relevance/cascade reservoirs in Upper Yellow Riv-er分类
水利科学引用本文复制引用
刘兰心,杨舒惠,王舒欣,胡静,李春晖,易雨君..黄河上游梯级水库运行对黄河干流水文情势的影响[J].人民黄河,2025,47(3):42-47,77,7.基金项目
国家自然科学基金联合基金资助项目(U2243236) （U2243236）
国家杰出青年科学基金资助项目(52025092) （52025092）
