泥沙研究2024，Vol.49Issue(3)：69-73,5.DOI:10.16239/j.cnki.0468-155x.2024.03.010
黄河下游河道平滩流量变化及其与汛期水沙条件的关系
Variation of bankfull discharge and its relationship with flow and sediment conditions during flood season in the Lower Yellow River
摘要
Abstract
Based on measured data,the variation of bank-full discharge and its relationship with flow and sediment conditions during flood season in the Lower Yellow River was analyzed.The result shows that the variation trend of bank-full discharge in the Lower Yellow River is first decreasing from 7 000～9 000 m3/s in the mid-20th century to 2 000～4 000 m3/s in the late 20th century,and then increasing to 4 000～7 000 m3/s in the 21s1 century.The established relationship between bankfull discharge at Sunkou and flow and sediment conditions during flood season at Huayuankou shows the bankfull discharge increases with the increase of runoff and the decrease of the sediment coefficient during flood season.However,there is an obvious difference in the relationships between bank-full discharge of Sunkou and flow and sediment conditions during flood season at Huayuankou before and after 2000,which means that the use of water storage and sediment control in Xiaolangdi reservoir has changed the evolution mechanism in the Lower Yellow River.关键词
黄河下游/平滩流量/水沙条件/河道演变/回归分析Key words
Lower Yellow River/bankfull discharge/flow and sediment conditions/channel evolution/regres-sion analysis分类
建筑与水利引用本文复制引用
韩小军,卢书慧,史红玲,林树峰..黄河下游河道平滩流量变化及其与汛期水沙条件的关系[J].泥沙研究,2024,49(3):69-73,5.基金项目
国家自然科学基金项目(U22A20237) （U22A20237）
