| 现代冲积河流的河型空间转化模式探讨 |
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| 引用本文： | 倪晋仁,王随继,王光谦.现代冲积河流的河型空间转化模式探讨[J].沉积学报,2000,18(1):1-6. |
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| 作者姓名： | 倪晋仁 王随继 王光谦 |
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| 作者单位： | 1.北京大学环境科学中心 北京 100871; |
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| 基金项目： | 国家自然科学基金;59890200; |
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| 摘 要： | 论述了现代冲积河流系统中常见河型的自然分布及转化特征,归纳了河型从上游向下游发生空间转化的 5种主要模式。这些河型转化模式发生的相对频率是不同的,其中从辫状河流向曲流河流转化的发生频率最大。文中通过具体实例总结了这些转化模式分别发生时的主要影响因素。
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| 关 键 词： | 河型 空间转化模式 影响因素 |
| 文章编号： | 1000-0550(2000)01-0001-06 |
| 收稿时间： | 1999-03-04 |
| 修稿时间： | 1999-03-04 |
Spatial Variations of Channel Patterns |
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| NI Jin-ren,WANG Sui-ji,WANG Guang-qian.Spatial Variations of Channel Patterns[J].Acta Sedimentologica Sinica,2000,18(1):1-6. |
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| Authors: | NI Jin-ren WANG Sui-ji WANG Guang-qian |
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| Institution: | 1.Center for Environmental Sciences, Peking University, Beijing, 100871;2.Department of Hydraulic and Hydropower Engineering, Tsinghua University, Beijing, 100084 |
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| Abstract: | The formation of channel patterns and its characteristics
are important aspects in modern and ancient fluvial system studies, and thus become the
main concern for hydraulic engineers, geomorphologists and sedimentologists. So far, there
are still some questions not clear in this area, for example, the classification of
channel patterns, formation cause of anastomosing fluvial rivers, critical conditions of
evolution of some fluvial channel patterns, and further studies are still needed. Another
problem related to channel pattern is the transformation of the patterns. In the present
paper, four ordinary patterns are discussed, which include the braided, meandering,
anabranched (in which include the anastomosing) and straight patterns. Comprehensive study
to the spatial transformation of above channel patterns has significance not only for
management of modern river and prevention of flood,but also for prospect and exploitation
for hydrocarbon and some mineral resources in ancient fluvial depositional systems. |
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| Keywords: | channel patterns model of spatial variations controlling factors |
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