Sediment Yield Deduction from Check-dams Deposition in the Weathered Sandstone Watershed on the North Loess Plateau, China

doi:10.1002/ldr.2628

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	Sediment Yield Deduction from Check-dams Deposition in the Weathered Sandstone Watershed on the North Loess Plateau, China
	Jiao, JY (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.; Wei, Yanhong 1,2; He, Zhong 1,2; Li, Yujin 3; Jiao, Juying 1,2; Zhao, Guangju 1,2; Mu, Xingmin 1,2
刊名	LAND DEGRADATION & DEVELOPMENT
	2017
卷号	28 期号:1 页码:217-231
关键词	Soil Erosion Check Dams Sedimentation Couplets Capacity Curve Loess Plateau
ISSN号	1085-3278
DOI	10.1002/ldr.2628
文献子类	Article
英文摘要	As the basic unit of erosion and sediment yield, it was critical to determine the amount of soil erosion and sediment yield in the small watersheds for sustaining a reasonable water resource and sediment regulation system. In this study, we determined the sediment yield from the dams-controlled watershed on the North Loess Plateau. Three check dams in the watershed were investigated by drilling ten-hole sedimentation cores. The corresponding flood couplets were dated according to thickness of deposition layers, distribution of sediment particle size and historical erosive rainfall events. On the basis of the check dams capacity curve, the soil bulk density and the thickness of couplets, the deposit mass of check dams, and then the sediment yield of watershed at different temporal and spatial scale were deducted. In total of the 33, 60 and 55 couplets were corresponded to individual flood events in the dam MH1# from 1976 to 1984, the dam MH2# from 1985 to 2007, and the dam MH4# from 1981 to 2009, respectively. The specific sediment yield for flood events was 1,188.5-11,527.9Mgkm(-2), 1,278.6-17,136.7Mgkm(-2), and 3,395.9-33,698.5Mgkm(-2), and the annual average sediment yield was 10,728.6Mg(km(2)a)(-1), 12,662.9Mg(km(2)a)(-1), and 16,753.3Mg(km(2)a)(-1) in dam MH1#, MH2# and MH4# controlled watershed, respectively. The sediment yields were inversely proportional to the dams-controlled areas. For the whole watershed, the annual average sediment yield was 14,011.1Mg(km(2)a)(-1) from 1976 to 2009. There were large amounts of sediments (42.3-50.5%) were intercepted gradually along the way from small watersheds to the river channel. And the minimum rainfall for sediment deposited in the dams was greater than 20mm in this watershed. The results of this study suggested that the sediments retained behind check dams were helpful to quantifying the amount of erosion sediment yield and understanding the soil erosion evolution in the small and ungauged watersheds. Copyright (c) 2016 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
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000393800400021
资助机构	National Key Research Project [2016YFC0501604]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C2]; Major Programs of the Chinese Academy of Sciences [KZZD-EW-04-03-04]; National Science Foundation of China [41472156]; West Light Foundation of the Chinese Academy of Science ; National Key Research Project [2016YFC0501604]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C2]; Major Programs of the Chinese Academy of Sciences [KZZD-EW-04-03-04]; National Science Foundation of China [41472156]; West Light Foundation of the Chinese Academy of Science ; National Key Research Project [2016YFC0501604]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C2]; Major Programs of the Chinese Academy of Sciences [KZZD-EW-04-03-04]; National Science Foundation of China [41472156]; West Light Foundation of the Chinese Academy of Science ; National Key Research Project [2016YFC0501604]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C2]; Major Programs of the Chinese Academy of Sciences [KZZD-EW-04-03-04]; National Science Foundation of China [41472156]; West Light Foundation of the Chinese Academy of Science
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8074]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Jiao, JY (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China 2.Minist Water Resources, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China
推荐引用方式 GB/T 7714	Jiao, JY ,Wei, Yanhong,He, Zhong,et al. Sediment Yield Deduction from Check-dams Deposition in the Weathered Sandstone Watershed on the North Loess Plateau, China[J]. LAND DEGRADATION & DEVELOPMENT,2017,28(1):217-231.
APA	Jiao, JY .,Wei, Yanhong.,He, Zhong.,Li, Yujin.,Jiao, Juying.,...&Mu, Xingmin.(2017).Sediment Yield Deduction from Check-dams Deposition in the Weathered Sandstone Watershed on the North Loess Plateau, China.LAND DEGRADATION & DEVELOPMENT,28(1),217-231.
MLA	Jiao, JY ,et al."Sediment Yield Deduction from Check-dams Deposition in the Weathered Sandstone Watershed on the North Loess Plateau, China".LAND DEGRADATION & DEVELOPMENT 28.1(2017):217-231.