| 三角洲废弃河道演化过程及受控机制——以黄河刁口废弃河道为例 |
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| 引用本文： | 吴晓,范勇勇,王厚杰,毕乃双,徐丛亮,张勇,刘京鹏,卢泰安. 三角洲废弃河道演化过程及受控机制——以黄河刁口废弃河道为例[J]. 海洋地质与第四纪地质, 2021, 41(2): 22-29 |
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| 作者姓名： | 吴晓 范勇勇 王厚杰 毕乃双 徐丛亮 张勇 刘京鹏 卢泰安 |
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| 作者单位： | 中国海洋大学海洋地球科学学院,海底科学与探测技术教育部重点实验室, 青岛 266100;卫星海洋环境动力学国家重点实验室,自然资源部第二海洋研究所, 杭州 310012;黄河河口海岸科学研究所, 东营 257000;中国海洋大学海洋地球科学学院,海底科学与探测技术教育部重点实验室, 青岛 266100;中国地质调查局青岛海洋地质研究所, 青岛 266071 |
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| 基金项目： | 国家重点研发计划项目“黄河口流路演变过程的动力机制及流路稳定的指标体系”(2017YFC0405502),“大型水库调控下河口沉积动力过程及其生物地球化学效应”(2016YFA0600903);国家自然科学基金项目“黄河口沉积对黄河调水和调沙过程的差异性响应机制”(41806101),“海洋地质过程与环境”(U1706214);山东省自然科学基金“现行黄河三角洲叶瓣废弃河道的充填过程及其受控机制”(ZR2018BD028);卫星海洋环境动力学国家重点实验室开放课题“黄河人造洪峰期间河口沉积动力过程及地貌效应”(QNHX1607)。 |
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| 摘 要： | 废弃河道是河流系统的重要组成部分,其沉积记录蕴含了丰富的流域内构造活动、水文特征、海平面波动等环境变化的珍贵记录.然而相比内陆河废弃河道,三角洲废弃河道的演化过程及机制研究尚显不足.1976年黄河人工改道清水沟流路,切断了刁口流路的河流水沙供给,刁口流路逐渐废弃.通过1976—2016年的Landsat遥感影像、黄河水...
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| 关 键 词： | 废弃河道 刁口流路 地貌演化 黄河三角洲 |
Evolution of abandoned deltaic river channel-A case from the Diaokou channel of the Yellow River |
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| WU Xiao,FAN Yongyong,WANG Houjie,BI Naishuang,XU Congliang,ZHANG Yong,LIU Jingpeng,LU Taian. Evolution of abandoned deltaic river channel-A case from the Diaokou channel of the Yellow River[J]. Marine Geology & Quaternary Geology, 2021, 41(2): 22-29 |
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| Authors: | WU Xiao FAN Yongyong WANG Houjie BI Naishuang XU Congliang ZHANG Yong LIU Jingpeng LU Taian |
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| Affiliation: | (College of Marine Geosciences,Ocean University of China,Key Laboratory of Submarine Geosciences and Prospecting Technique,Ministry of Education,Qingdao 266100,China;State Key Laboratory of Satellite Ocean Environment Dynamics(Second Institute of Oceanography,SOA),Hangzhou 310012,China;Institute of the Yellow River Estuarine and Coastal Science,Dongying 257000,China;Qingdao Institute of Marine Geology,China Geological Survey,Qingdao 266071,China) |
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| Abstract: | Abandoned channels are one of the major components of a deltaic system,which contains valuable information related to tectonism,hydrology,sea-level fluctuation and environmental changes of the catchment.Comparing to the study of filling process of abandoned channels on land,which are well studied in the past decades,little research has been devoted to the tidal-dominated abandoned channels.The Diaokou River channel was fully abandoned in 1976 by an artificial construction separating it from the main course of the Yellow River.With the support of landsat images,bathymetric surveys and elevation data of the abandoned Diaokou River channel,the evolution of this tide-dominated abandoned channel is documented in this study.Since abandonment,about 0.3~2.0 meters of filling sediment have deposited in the channel,with along-channel and landward decrease in sedimentation.Marine dynamics is the main force to control the evolution of abandoned channels.The severe erosion near the abandoned channel mouth,as a source of sediments,has made the channel shortening gradually. |
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| Keywords: | abandoned river channel Diaokou course geomorphological evolution Yellow River delta |
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