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Sediment transport capacity of concentrated flows on steep loessial slope with erodible beds

文献类型：期刊论文

作者Xiao, Hai1; Liu, Gang1,2; Liu, Puling1,2; Zheng, Fenli1,2; Zhang, Jiaqiong1,2; Hu, Feinan1,2
刊名SCIENTIFIC REPORTS
出版日期2017-05-24
卷号7页码:9
ISSN号2045-2322
DOI10.1038/s41598-017-02565-8
通讯作者Liu, Gang(gliu@foxmail.com)
英文摘要Previous research on sediment transport capacity has been inadequate and incomplete in describing the detachment and transport process of concentrated flows on slope farmlands during rill development. An indoor concentrated flow scouring experiment was carried out on steep loessial soil slope with erodible bed to investigate the sediment transport capacity under different flow rates and slope gradients. The results indicated that the sediment transport capacity increases with increasing flow rate and slope gradient, and these relationships can be described by power functions and exponential functions, respectively. Multivariate, nonlinear regression analysis showed that sediment transport capacity was more sensitive to slope gradient than to flow rate, and it was more sensitive to unit discharge per unit width than to slope gradient for sediment transport capacity in this study. When similar soil was used, the results were similar to those of previous research conducted under both erodible and non-erodible bed conditions. However, the equation derived from previous research under non-erodible bed conditions with for river bed sand tends to overestimate sediment transport capacity in our experiment.
WOS关键词RARE-EARTH-ELEMENTS ; 3 GORGES AREA ; SOIL-EROSION ; OVERLAND-FLOW ; RILL EROSION ; HYDRAULIC PARAMETERS ; CHINA ; DETACHMENT ; INTERRILL ; PLATEAU
资助项目Natural Science Basic Research Plan in Shaanxi Province of China[2016JQ4017] ; National Key Technology Research and Development Program of the Ministry of Science and Technology of China[2015BAC01B03-03] ; Natural Science Foundation of China[41201270] ; Natural Science Foundation of China[41371281] ; West Light Foundation of The Chinese Academy of Sciences[2014-91] ; Talents Research Start-up Foundation of Shaanxi Province[2013-02100-Z111021512] ; Chinese Universities Scientific Fund[2452016102] ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021403-C2]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000417994500001
出版者NATURE PUBLISHING GROUP
资助机构Natural Science Basic Research Plan in Shaanxi Province of China ; National Key Technology Research and Development Program of the Ministry of Science and Technology of China ; Natural Science Foundation of China ; West Light Foundation of The Chinese Academy of Sciences ; Talents Research Start-up Foundation of Shaanxi Province ; Chinese Universities Scientific Fund ; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
源URL[http://ir.igsnrr.ac.cn/handle/311030/56776]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Gang
作者单位1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714		 Xiao, Hai,Liu, Gang,Liu, Puling,et al. Sediment transport capacity of concentrated flows on steep loessial slope with erodible beds[J]. SCIENTIFIC REPORTS,2017,7:9.
APA Xiao, Hai,Liu, Gang,Liu, Puling,Zheng, Fenli,Zhang, Jiaqiong,&Hu, Feinan.(2017).Sediment transport capacity of concentrated flows on steep loessial slope with erodible beds.SCIENTIFIC REPORTS,7,9.
MLA Xiao, Hai,et al."Sediment transport capacity of concentrated flows on steep loessial slope with erodible beds".SCIENTIFIC REPORTS 7(2017):9.

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来源：地理科学与资源研究所

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