人民黄河2025，Vol.47Issue(12)：29-34,6.DOI:10.3969/j.issn.1000-1379.2025.12.005
极端降雨条件下黄河流域可能来沙量研究
Possible Incoming Sediment Amount Under Extreme Rainfall Conditions in the Yellow River Watershed
摘要
Abstract
Assessing the changes in water and sediment dynamics in the Yellow River,particularly the trend of sediment load,is crucial for formulating strategies for Yellow River management.This study selected 13 typical tributaries in the He-Long reach and the Jinghe,Weihe,and Luohe Rivers,which had experienced relatively high rainfall in recent years but exhibited varying degrees of sediment reduction.The po-tential sediment yield under extreme rainfall conditions in these basins was analyzed,and the sediment load at Tongguan Station was esti-mated.Based on hydrological frequency analysis and historical extreme rainfall combinations,extreme rainfall scenarios were designed.The results show that under current underlying surface conditions,the maximum annual sediment yield from typical basins in the He-Long reach during extreme rainfall events accounts for up to 35%of the historically measured maximum annual sediment yield.Using this 35%ratio,the estimated sediment yield from the He-Long reach under extreme rainfall and current underlying surface conditions is 767 million tons.Under the same conditions,the sediment yields at the Xianyang Station on the Weihe River and the Zhuangtou Station on the Beiluo River are 89 million tons and 110 million tons,respectively.The potential maximum sediment yield from the upper reaches of the Jinghe River at the Zhangjiashan Station is 449 million tons.Considering the maximum sediment transport of 177 million tons recorded at the Toudaoguai Station since 2012,the potential maximum sediment load at the Tongguan Station under extreme rainfall and current underlying surface conditions is estimated to be 1.592 billion tons,which is 41%of the historical maximum of 3.91 billion tons.关键词
可能来沙量/分级降雨量/极端降雨/黄河中游Key words
possible incoming sediment amount/graded rainfall/extreme rainfall/Middle Yellow River分类
建筑与水利引用本文复制引用
余欣,肖千璐,王方圆,陈真,李小平..极端降雨条件下黄河流域可能来沙量研究[J].人民黄河,2025,47(12):29-34,6.基金项目
国家重点研发计划项目(2023YFC3209300) （2023YFC3209300）
国家自然科学基金联合基金资助项目(U2443219) （U2443219）
水利部重大科技项目(SKS-20222061) （SKS-20222061）
中央级公益性科研院所基本科研业务费专项(HKY-JBYW-2025-19,HKY-JBYW-2023-10) （HKY-JBYW-2025-19,HKY-JBYW-2023-10）
