Soil erosion fluxes on the central Chinese Loess Plateau during CE 1811 to 1996 and the roles of monsoon storms and human activities

doi:10.1016/j.catena.2021.105148

	Soil erosion fluxes on the central Chinese Loess Plateau during CE 1811 to 1996 and the roles of monsoon storms and human activities
	Wang, Xiaqing 3,4,5; Wang, Zhaosheng 6; Xiao, Jun 4,7; He, Maoyong 4,7; Zhang, Fei 4,7; Pan, Yanhui 8; Zhang, Yongxia 2; Jin, Zhangdong 1,4,7
刊名	CATENA
	2021-05-01
卷号	200 页码:12
关键词	Soil erosion flux Precipitation ENSO event Human activity Past 200 years Landslide-dammed reservoir Chinese Loess Plateau
ISSN号	0341-8162
DOI	10.1016/j.catena.2021.105148
通讯作者	Wang, Xiaqing(wangxq1517@hotmail.com)
英文摘要	Evaluating the effects of soil and water conservation on the Chinese Loess Plateau (CLP) during the past 60 years depends mainly on understanding the historical processes of soil erosion fluxes and their mechanism. However, little was known about the historical variation in soil erosion and its driving factors due to the lack of few ideal geological carriers on the CLP. A representative Heshui (HS) landslide-dammed reservoir that formed 200 years ago was drilled with a 31.39 m length sediment sequence. The HS sequence was composed of 165 deposition couplets with 56 annual freeze-thaw layers based on the elemental distributions by X-ray fluorescence core scanners. Mean couplet and annual specific sediment yields (CSSY and ASSY) were 1.44 x 10(4) t/km(2) and 1.28 x 10(4) t/km(2)/yr, respectively. The HS sequence was deposited over CE 1811-1996, which was dated by multi-methods crossing among Cs-137 activities, annual freeze-thaw layers, CSSY, recent rainfall records, and historical flood index grades. Besides, the threshold value of hydrological events that generated sediments in the HS reservoir was greater than 40 mm. As a result, there were eight periods of high ASSY between CE 1811 and 1996, although the total tendency of the ASSY was decreased, especially under the management of soil and water since the 1960s on the CLP. Interannual change of monsoon storms under El Nino-Southern Oscillation events was the primary factor affecting the variations in ASSY and storms in the HS region. Besides, human activities, such as policies and wars, also had significant influences on the historical soil erosion processes in this region. These results not only shed light on the historical changes in soil erosion fluxes and corresponding hydrological events during the past 200 years in the plateau-gully area of the CLP, but the active mechanisms under the different driving factors were also better understood.
资助项目	National Natural Science Foundation of China[41807390] ; CAS Interdisciplinary Innovation Team ; Open Fund of State Key Laboratory of Loess and Quaternary Geology[SKLLQG1832]
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000620777400019
资助机构	National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team ; Open Fund of State Key Laboratory of Loess and Quaternary Geology
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/160459]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Xiaqing
作者单位	1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 2.Heshui Meteorol Bur, Qingyang 745000, Peoples R China 3.Hunan Univ Arts & Sci, Coll Resources & Environm & Tourism, Changde 415000, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.Hunan Prov Cooperat Innovat Ctr Construct & Dev D, Changde 415000, Peoples R China 6.Chinese Acad Sci, Natl Ecosyst Sci Data Ctr, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 7.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 8.Lanzhou Univ, Environm & Resources Coll, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaqing,Wang, Zhaosheng,Xiao, Jun,et al. Soil erosion fluxes on the central Chinese Loess Plateau during CE 1811 to 1996 and the roles of monsoon storms and human activities[J]. CATENA,2021,200:12.
APA	Wang, Xiaqing.,Wang, Zhaosheng.,Xiao, Jun.,He, Maoyong.,Zhang, Fei.,...&Jin, Zhangdong.(2021).Soil erosion fluxes on the central Chinese Loess Plateau during CE 1811 to 1996 and the roles of monsoon storms and human activities.CATENA,200,12.
MLA	Wang, Xiaqing,et al."Soil erosion fluxes on the central Chinese Loess Plateau during CE 1811 to 1996 and the roles of monsoon storms and human activities".CATENA 200(2021):12.