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Fingerprinting Sediment Sources After an Extreme Rainstorm Event in a Small Catchment on the Loess Plateau, PR China

文献类型：期刊论文

作者Yang, MY (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, 26 Xinong St Yangling, Yangling 712100, Shaanxi, Peoples R China.; Li, Yuanyuan2; Zhang, Jiaqiong2; Yang, Mingyi2; Zhang, Fengbao2; Zhang, Wei1; Zhao, Tianyin2
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2017
卷号28期号:8页码:2527-2539
关键词Sediment Source Sediment Deposition Extreme Rainstorm Check-dam Fingerprinting
ISSN号1085-3278
DOI10.1002/ldr.2803
文献子类Article
英文摘要Soil erosion is a severe problem on China's Loess Plateau due to its fine-grained soils and the increasing frequency of extreme rainfall events. Accordingly, this study used a 100-year frequency rainstorm dataset to analyse sediment deposition and sources in a 27-km(2) catchment with a dam field area of 014km(2) based on the hypothesis that sediments were intercepted by the dam (before collapse) during the rainstorm event and deposited in the dam field. This study applied composite fingerprinting, which revealed the sediment source contributions and estimated sediment deposition. Sediment deposition (6264kgm(-2)) decreased linearly or exponentially with increasing distance from the dam. Composite fingerprints based on the optimal parameters revealed relative sediment contributions of 441%+/- 255%, 377%+/- 350%, 90%+/- 114% and 92%+/- 115% by bare ground, croplands, grassland and forests, respectively. The 5-year cumulative sediment deposition from normal rainfall was 23x10(4)t less than the extreme rainstorm. Bare grounds and croplands were the dominant sediment sources following both the extreme rainstorm and normal erosive rainfall events but varied at different areas of the check-dam. Erosion patterns and start times depended on land use type, thereby affecting sediment profiles in the dam field. Furthermore, severe erosion from bare ground that were all gully slopes and gully walls occurred throughout the rainfall, whereas grasslands and forest erosion occurred earlier and croplands later. Finally, extreme rainfall promoted mass wasting on slopes, gully slopes and gully walls, which are important in determining extreme rainstorm erosion pattern variation. This study aimed to reveal erosion pattern variation under extreme rainstorm events. Copyright (c) 2017 John Wiley & Sons, Ltd.
学科主题Environmental Sciences & Ecology ; Agriculture
URL标识查看原文
出版地HOBOKEN
语种英语
WOS记录号WOS:000414626400016
出版者WILEY
资助机构National Natural Science Foundation of China [41671281]; Special Fund for Basic Scientific Research of the Northwest A&F University of China of Ministry of Education [2452015095]; Special Funds of Scientific Research Programs of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau of Ministry of Science and Technology [A314021403-C2]; National Key Research and Development Program of China of Ministry of Science and Technology [2016YFC0402406] ; National Natural Science Foundation of China [41671281]; Special Fund for Basic Scientific Research of the Northwest A&F University of China of Ministry of Education [2452015095]; Special Funds of Scientific Research Programs of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau of Ministry of Science and Technology [A314021403-C2]; National Key Research and Development Program of China of Ministry of Science and Technology [2016YFC0402406] ; National Natural Science Foundation of China [41671281]; Special Fund for Basic Scientific Research of the Northwest A&F University of China of Ministry of Education [2452015095]; Special Funds of Scientific Research Programs of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau of Ministry of Science and Technology [A314021403-C2]; National Key Research and Development Program of China of Ministry of Science and Technology [2016YFC0402406] ; National Natural Science Foundation of China [41671281]; Special Fund for Basic Scientific Research of the Northwest A&F University of China of Ministry of Education [2452015095]; Special Funds of Scientific Research Programs of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau of Ministry of Science and Technology [A314021403-C2]; National Key Research and Development Program of China of Ministry of Science and Technology [2016YFC0402406]
源URL[http://ir.iswc.ac.cn/handle/361005/7897]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Yang, MY (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, 26 Xinong St Yangling, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Agr Comm Wuzhai Cty, Xinzhou 036200, Shanxi, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, 26 Xinong St Yangling, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Yang, MY ,Li, Yuanyuan,Zhang, Jiaqiong,et al. Fingerprinting Sediment Sources After an Extreme Rainstorm Event in a Small Catchment on the Loess Plateau, PR China[J]. LAND DEGRADATION & DEVELOPMENT,2017,28(8):2527-2539.
APA Yang, MY .,Li, Yuanyuan.,Zhang, Jiaqiong.,Yang, Mingyi.,Zhang, Fengbao.,...&Zhao, Tianyin.(2017).Fingerprinting Sediment Sources After an Extreme Rainstorm Event in a Small Catchment on the Loess Plateau, PR China.LAND DEGRADATION & DEVELOPMENT,28(8),2527-2539.
MLA Yang, MY ,et al."Fingerprinting Sediment Sources After an Extreme Rainstorm Event in a Small Catchment on the Loess Plateau, PR China".LAND DEGRADATION & DEVELOPMENT 28.8(2017):2527-2539.

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来源：水土保持研究所

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