基于遥感的黄河郑州段河流形态变化分析  

Analysis of Morphological Change of the Yellow River in Zhengzhou Section Based on RS

作　　者：闫超德[1] 袁观杰 李紫薇[1] 刘晓 叶勇超 YAN Chaode;YUAN Guanjie;LI Ziwei;LIU Xiao;YE Yongchao(School of Water Conservancy and Environment,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学水利与环境学院

出　　处：《人民黄河》2020年第1期21-26,共6页Yellow River

基　　金：国家自然科学基金资助项目(41671455);河南省高等学校重点科研项目(15A420007,16A420005)

摘　　要：黄河郑州段在中下游黄河中具有代表性,研究郑州段黄河河流形态的变化可以为中下游河床的治理以及小浪底水库调水排沙效果评价提供科学依据。基于Landsat 8卫星影像提取桃花峪至花园口段多时相的水体信息,研究2013—2017年河流水面面积及长度变化、河流摆动以及河流重叠度变化,并对该河段的河流形态变化原因进行了分析。结果表明:在研究年限内,该河段的水面面积在年内变化范围较大,但在年际间维持动态稳定;河流长度变化很小,基本保持不变;主流摆幅逐渐缩小,游荡性逐年减弱,河型趋于稳定,表明小浪底水库的调控作用日趋显著。The Zhengzhou section is representative in the middle and lower reaches of the Yellow River.Studying the changes of river mor⁃phology of it can provide scientific basis for the treatment of the middle and lower reaches of the Yellow River and evaluate the effect of the Xiaolangdi Reservoir on water and sediment discharge.Based on Landsat 8 satellite images,the multi-phase water information from Taohuayu to Huayuankou was extracted.Changes of river surface area and length,river swing and overlap were studied,and the causes of them were analyzed.The results show that the water surface area of this reach has a large range of variations during the study period,but it maintains a dynamic stability between years;the river length changes very little and basically remains unchanged;the river swing gradually narrows,the wandering property gradually weakens,and the river type tends to be stable.All the above indicate that the regulation role of Xiaolangdi Res⁃ervoir is becoming more and more significant.

关 键 词：河流形态 河流测度 重叠度 遥感 黄河中下游 

分 类 号：TV62[水利工程—水利水电工程] TV882.1