| Impact of water diversion on the morphological development of the Lower Yellow River |
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| 作者姓名： | Huib J. de VRIEND |
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| 作者单位： | [1]Deltares, P. O. 177, 2600 MH Delft, the Netherlands. ＆ Assoc. Prof., Delft_ University of Technology, Faculty of Civil Engineering and Geosciences [2]State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China [3]Director Science and Technology, Deltares, P. O. 177, 2600 MH Delft, the Netherlands. ＆ Prof., Delft University of Technology, Faculty of Civil Engineering and Geosciences |
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| 基金项目： | Acknowledgments The work presented in this paper is partly financed by the Dutch Royal Academy of Sciences and the Chinese Ministry of Science and Technology via the project Predictive morphological modelling of the Lower Yellow River, within the framework of Programme Scientific Alliances between China and The Netherlands （2004CB720402）. |
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| 摘 要： | In this paper we carry out a theoretical analysis based on the general one-dimensional morphodynamic model for rivers in order to show how the morphological equilibrium of a fiver is influenced by water and sediment diversion/supply along the river. The results of the analysis show that large scale water diversions, like those along the Lower Yellow River, can cause the development of a convex riverbed profile in the long-term. Deposition will take place along the whole reach of the river, with an increasing deposition depth from downstream to upstream. The slope of the river bed increases from upstream to downstream. Furthermore, an analysis on the morphological time scale shows that this development in the Lower Yellow River will take a time period on the order of decades to centuries. The results of the analysis have been compared with observations in the Lower Yellow River. Since the second half of the 1980＇s large scale water diversions from the Yellow River have been taking place. The observations show that this has indeed led to significant sedimentation along the river.
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| 关 键 词： | 河床 导流渠 黄河 泥沙沉积 |
Impact of water diversion on the morphological development of the Lower Yellow River |
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| Huib J. de VRIEND.Impact of water diversion on the morphological development of the Lower Yellow River[J].International Journal of Sediment Research,2008,23(1):13-27. |
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| Authors: | Zhengbing WANG Zhaoyin WANG Huib Jde VRIEND |
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| Institution: | 1. Specialist/Expert Advisor, P. O. 177, 2600 MH Delft, the Netherlands. & Assoc. Prof., Delft University of Technology, Faculty of Civil Engineering and Geosciences;2. Prof., State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;3. Prof., Director Science and Technology, Deltares, P. O. 177, 2600 MH Delft, the Netherlands. & Prof., Delft University of Technology, Faculty of Civil Engineering and Geosciences |
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| Abstract: | In this paper we carry out a theoretical analysis based on the general one-dimensional morphodynamic model for rivers in order to show how the morphological equilibrium of a river is influenced by water and sediment diversion/supply along the river. The results of the analysis show that large scale water diversions, like those along the Lower Yellow River, can cause the development of a convex riverbed profile in the long-term. Deposition will take place along the whole reach of the river, with an increasing deposition depth from downstream to upstream. The slope of the river bed increases from upstream to downstream. Furthermore, an analysis on the morphological time scale shows that this development in the Lower Yellow River will take a time period on the order of decades to centuries. The results of the analysis have been compared with observations in the Lower Yellow River. Since the second half of the 1980's large scale water diversions from the Yellow River have been taking place. The observations show that this has indeed led to significant sedimentation along the river. |
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| Keywords: | Water diversion Riverbed profile Fluvial process Yellow River Sedimentation |
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