| 黄河下游游荡河道萎缩过程中的河床演变趋势 |
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| 引用本文： | 许炯心,孙季.黄河下游游荡河道萎缩过程中的河床演变趋势[J].泥沙研究,2003(1):10-17. |
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| 作者姓名： | 许炯心 孙季 |
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| 作者单位： | 1. 中国科学院,地理科学与资源研究所,北京,100101
2. 西南科学技术大学,四川绵阳,621000 |
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| 基金项目： | 国家重点基础研究规划项目 (G199942 60 4)，中国科学院地理科学与资源研究所知识创新工程领域前沿项目
(CXIOG A0 0 0 5 0 1) |
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| 摘 要： | 由于人类活动与自然因素影响下的水沙变化。黄河下游自20世纪70年代初期特别是80年代中期以来发生了明显的河床萎缩，河宽束窄，宽深比减小，主流线摆动幅度减小，深泓线弯曲系数增大，这表明，黄河下游的游荡程度有所降低。
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| 关 键 词： | 河床演变 水沙变化 河道萎缩 黄河下游 人类活动 自然因素 弯曲系数 |
| 文章编号： | 0468-155X(2003)01-0010-08 |
| 修稿时间： | 2002年1月7日 |
Tendency of Channel Change of the Lower Yellow River During Its Shrinkage |
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| XU Jiong\|xin\,SUN Ji\.Tendency of Channel Change of the Lower Yellow River During Its Shrinkage[J].Journal of Sediment Research,2003(1):10-17. |
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| Authors: | XU Jiong\|xin\ SUN Ji\ |
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| Affiliation: | XU Jiong\|xin\+1,SUN Ji\+2 |
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| Abstract: | Due to the changes in runoff and sediment load induced by human activities and the changing natural factors, marked channel shrinkage has occurred in the lower Yellow River since the 1970s, especially since the mid\|1980s. The bankfull width of the channel became smaller, the width to depth ratio became lower, the lateral shifting of thalweg was greatly reduced, and the thalweg sinuosity became higher. All these indicate that the intensity of \!wandering\" of the lower Yellow River declined to some degree. |
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| Keywords: | channel process channel pattern channel shrinkage the lower Yellow River |
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