| SEDIMENT TRANSPORT MODEL OF A WATERSHED |
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| 引用本文： | LI Huaien (1 The English text is edited by Dr. DING Lianzhen. 2 Associate professor,Xian University of Technology,Xian 710048,P. R. China). SEDIMENT TRANSPORT MODEL OF A WATERSHED[J]. 国际泥沙研究, 1997, 0(1) |
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| 作者姓名： | LI Huaien (1 The English text is edited by Dr. DING Lianzhen. 2 Associate professor Xian University of Technology Xian 710048 P. R. China) |
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| 作者单位： | 1 The English text is edited by Dr. DING Lianzhen. 2 Associate professor，Xian University of Technology，Xian 710048，P. R. China |
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| 摘 要： | ChinaisoneOfthecountrieswhichsufferfromthemostserioussoilerosionintheworld,andthehillyandgullyareasof~PlateauinthemiddlereachesOftheYellowRiverarethemostseriouserosionareainChina.Inthisarea,themainerosivefactorsarerainfallandrunoff.Sometimes,thesedimentyieldinasinglefloodeventcanbe40%oftheannualsedimentload.Therefore,itisveryimPOrtanttostudytheyieldandgraphOfSedimentOfsinglefindevent.Forthispn~,thispaperiswritten.AInongsedimentmodelsforsinglefloodevent,moreandmoreattentionwaspaidtOunitse…
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SEDIMENT TRANSPORT MODEL OF A WATERSHED |
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| LI Huaien. SEDIMENT TRANSPORT MODEL OF A WATERSHED[J]. International Journal of Sediment Research, 1997, 0(1) |
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| Authors: | LI Huaien |
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| Abstract: | The natural watershed is simply represented by a multi-order river net system, so the sediment transport process in watershed can be considered as sediment transport in the system. Based on this assumption, a new sediment graph model-Inverse Gaussian distribution instantaneous unit graph model is introduced in this paper. Then, the parameter estimation and other specific computational procedure are discussed. With the verification of 27 flood events measured in Chabagou watershed (in hilly and gullied areas of the Loess Plateau, Northern Shaanxi), the results are satisfactory and the model has a distinguishing feature in flexibility, model structure, and parameter numbers (only two). In addition, the phase difference between measured and simulated sediment flux are presented. and satisfactory results are obtained. |
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| Keywords: | Inverse Gaussian distribution sediment flux graph Instantaneous unit sediment graph Objective function |
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