摘要
分析黄河下游游荡型河道河势的时空演变规律,为进一步认识黄河下游河道演变特征、开展河道整治提供理论支撑和实践价值。在系统收集、整理1960-2015年黄河下游游荡型河段典型断面的河势观测资料基础上,利用Mann-Kendall趋势检验和Fisher断点检验方法分析1960-2015年黄河下游游荡型河道典型断面多年平均河宽及主流线迁移速率变化情况。结果表明:近60年黄河下游游荡型河道在平面形态上呈藕节状分布,而其主流线调整速率的时空分布规律并不显著;黄河下游于店断面、禅房断面是平面藕节状分布的关键节点,将全河段划分为3段(第一段铁谢至于店断面,河宽均值为1627m;第二段于店至禅房断面,河宽均值为1477m;第三段禅房至高村断面,河宽均值为1074m)。
The temporal and spatial evolution law of the wandering river regime in the lower Yellow River was analyzed to provide theoretical support and practical value for further understanding the evolution characteristics of the lower Yellow River channel.Based on the systematic collection of river regime observation data of typical sections of the wandering channel in the lower Yellow River from 1960 to 2015,with the Mann-Kendall trend test and Fisher breakpoint test method,the average river width and the migration rate of the mainline of the wandering channel in the lower Yellow River from 1960 to 2015 were analyzed.The results show that:in the past 60 years,the wandering channel in the lower Yellow River showed a clear manifestation,that was,they were distributed in the shape of a lotus on the plane,while the temporal and spatial distribution of the mainline adjustment rate was not significant;the cross-section of the lower Yellow River was the key node of the plane lotus-shaped distribution,and the whole river channel was divided into three sections(the first reach,Tiexie-Yudian section,with the average river width of 1 627 m;the second reach,Yudian-Chanfang section,with the average river width of 1 477 m;the third reach,Chanfang-Gaocun section,with the average river width of 1 074 m,respectively).
作者
许琳娟
王远见
李军华
赵万杰
董伟军
XU Linjuan;WANG Yuanjian;LI Junhua;ZHAO Wanjie;DONG Weijun(Yellow River Institute of Hydraulic Research,YRCC,Zhengzhou 450003,China;Hohai University,Nanjing 210098,China;North China University of Water Resources and Electric Power,Zhengzhou 450046,China)
出处
《南水北调与水利科技（中英文）》
CAS
北大核心
2021年第1期151-157,197,共8页
South-to-North Water Transfers and Water Science & Technology
基金
国家重点研发计划(2018YFC0407403)
国家自然科学基金(51709123)
中央级公益性科研院所基本科研业务费项目(HKYJBYW-2018-03)。
作者简介
许琳娟(1984-),女,河南巩义人,高级工程师,博士,主要从事河流泥沙、河床演变及河道整治研究。E-mail:xlj2112003@163.com。
