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Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau
Zhao, Guangju1,2; Mu, Xingmin1,2; Han, Mengwei1,2; An, Zhengfeng1,2; Gao, Peng1,2; Sun, Wenyi1,2; Xu, Wenlong3; Mu, XM (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China.; Mu, XM (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China.; Mu, XM (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China.
SubtypeArticle
2017
Source PublicationCATENA
ISSN0341-8162
description.correspondentemailxmmuiswc@gmail.com
Volume149Pages:110-119
AbstractAn improved understanding of the temporal variations in soil erosion rates and sediment sources is necessary to identify the main areas prone to soil erosion and to effectively implement soil and water conservation measures. In this study, we selected two dam-controlled watersheds (Xiaoshilata and Yangjiagou) on the northern Loess Plateau, China, and determined the temporal variations in the sediment yield. The sedimentation upstream of the dams showed that there were 31 and 9 flood couplets in the Xiaoshilata (1958-1972) and Yangjiagou watersheds (2007-2011), respectively, which have trapped 16.5 x 10(4) t and 338 x 10(4) t of sediment, respectively. The estimated specific sediment yield was approximately 173.6 t/ha/a and 106.1 t/ha/a in the Xiaoshilata and Yangjiagou watersheds, respectively. A multivariate mixed model was applied to identify the different sediment sources. The results indicated that weathered sandstone contributed approximately 61.52% of the total sediment, and the remaining sediment loss was from bare loess soil (32.54%) and grassland (5.94%) in the Xiaoshilata watershed. In the Yangjiagou watershed, approximately 66.8% of the sediment originated from weathered sandstone, whereas bare loess and grassland accounted for 17.5% and 15.7% of the sediment yield, respectively. Based on these findings, we recommend that comprehensive soil conservation measures are needed to soil erosion control for the permanent steep gullies due to high sediment contribution. The sedimentation behind the check dams provides an indirect method for estimating the sediment yield in ungauged basins. (C) 2016 Elsevier B.V. All rights reserved.
KeywordDam-controlled Watershed Fingerprinting Sedimentation Sediment Yield Sediment Sources Loess Plateau
Subject AreaGeology ; Agriculture ; Water Resources
DOI10.1016/j.catena.2016.09.010
URL查看原文
Indexed BySCI
Publication PlaceAMSTERDAM
Language英语
WOS IDWOS:000390733300010
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Natural Science Foundation of China [41671279, 41201266]; National Key Scientific Research Project [2016YFC0402401]; special program for Key Basic Research of the Ministry of Science and Technology [2014FY210100]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-Q2]; Shaanxi Youth Science and Technology Star Project [2015KJXX-58] ; National Natural Science Foundation of China [41671279, 41201266]; National Key Scientific Research Project [2016YFC0402401]; special program for Key Basic Research of the Ministry of Science and Technology [2014FY210100]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-Q2]; Shaanxi Youth Science and Technology Star Project [2015KJXX-58]
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8048
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorMu, XM (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China.; Mu, XM (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China.; Mu, XM (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China.
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Guangju,Mu, Xingmin,Han, Mengwei,et al. Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau[J]. CATENA,2017,149:110-119.
APA Zhao, Guangju.,Mu, Xingmin.,Han, Mengwei.,An, Zhengfeng.,Gao, Peng.,...&Mu, XM .(2017).Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau.CATENA,149,110-119.
MLA Zhao, Guangju,et al."Sediment yield and sources in dam-controlled watersheds on the northern Loess Plateau".CATENA 149(2017):110-119.
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