A test of equilibrium theory and a demonstration of its practical application for predicting the morphodynamics of the Yangtze River
文献类型：SCI/SSCI论文
| 作者 | Huang H. Q. ; Deng C. Y. ; Nanson G. C. ; Fan B. L. ; Liu X. F. ; Liu T. H. ; Ma Y. X. |
| 发表日期 | 2014 |
| 关键词 | equilibrium theory bedload transport river channel geometry maximum flow efficiency Yangtze River maximum flow efficiency alluvial channel flow least action hydraulic geometry principle stability regime |
| 英文摘要 | Taking the width/depth ratio of a river channel as an independent variable, a variational analysis of basic flow relationships shows that alluvial-channel flow adjusts channel geometry to achieve stationary equilibrium when the condition of maximum flow efficiency (MFE) is satisfied. As a test of the veracity of MFE and to examine if this theory of self-adjusting channel morphodynamics can be practically applied to large river systems, this study examines the degree of correspondence between theoretically determined equilibrium channel geometries and actual measurements along the middle and lower Yangtze River. Using four different forms of the Meyer-Peter and Muller bedload relation and relations of flow continuity and resistance we show that the Meyer-Peter and Muller bedload relation modified on the basis of MFE theory predicts channel dimensions most accurately when applied to the middle and lower Yangtze River. This provides convincing evidence supporting MFE equilibrium theory. Copyright (c) 2014 John Wiley & Sons, Ltd. |
| 出处 | Earth Surface Processes and Landforms |
| 卷 | 39 |
| 期 | 5 |
| 页 | 669-675 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0197-9337 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29826]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Huang H. Q.,Deng C. Y.,Nanson G. C.,et al. A test of equilibrium theory and a demonstration of its practical application for predicting the morphodynamics of the Yangtze River. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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