干旱区生态环境知识资源中心(Arid): Comparisons of topsoil geochemical elements from Northwest China and eastern Tibetan Plateau identify the plateau interior as Tibetan dust source

Arid

DOI	10.1016/j.scitotenv.2021.149240
	Comparisons of topsoil geochemical elements from Northwest China and eastern Tibetan Plateau identify the plateau interior as Tibetan dust source
	Yang, Shengli; Luo, Yuanlong; Li, Qiong; Liu, Weiming; Chen, Zixuan; Liu, Li; Liu, Xiaojing
通讯作者	Yang, SL (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	798
英文摘要	The high-altitude Tibetan Plateau (TP) is a potential substantial source of dust that could have major effects on the global dust cycle and lead to environmental change. Aeolian loess on the TP is a valuable archive for studying the history of dust activities. Identification of TP dust sources will deepen understanding of dust transport and atmospheric circulation patterns and their environmental impacts. However, consensus on the source of TP loess has not been reached, which hinders understanding of dust transport and paleoenvironmental explanations. In this study, topsoil and loess samples from Northwest (NW) China and eastern TP were used to systematically investigate the spatial variability in geochemical composition, and the element characteristics of the TP loess were used to identify its dust source. Compared with samples from NW China, the eastern TP topsoil and loess were relatively enriched in TiO2, MnO, Cr, Co, V, Zr, Nb, La, Ce, and Hf, but relatively depleted in Na2O, MgO, CaO, Sr, and Pb. The geochemical composition and source analyses indicated that the dust from the Qaidam Basin, Hexi Corridor, and Tarim Basin in NW China was not the main contributing source to the 1P loess. However, the elemental characteristics of the TP loess were broadly consistent, and element contents were similar to those of major and trace elements in surface sediments on the TP. Thus, the eastern TP loess was sourced primarily from the TP interior, revealing the TP as an important dust source in Asia. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Tibetan Plateau Loess Major elements Trace elements Source Topsoil
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000701748100005
WOS关键词	RARE-EARTH-ELEMENTS ; GRAIN-SIZE ; SEDIMENTARY-ROCKS ; LOESS DEPOSITS ; ASIAN DUST ; PROVENANCE ; DESERT ; REGIONS ; ACCUMULATION ; PARTICLES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364590
作者单位	[Yang, Shengli; Luo, Yuanlong; Li, Qiong; Chen, Zixuan; Liu, Li; Liu, Xiaojing] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China; [Liu, Weiming] Chinese Acad Sci, Inst Mt Hazards & Environm, CAS Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Yang, Shengli,Luo, Yuanlong,Li, Qiong,et al. Comparisons of topsoil geochemical elements from Northwest China and eastern Tibetan Plateau identify the plateau interior as Tibetan dust source[J]. 兰州大学,2021,798.
APA	Yang, Shengli.,Luo, Yuanlong.,Li, Qiong.,Liu, Weiming.,Chen, Zixuan.,...&Liu, Xiaojing.(2021).Comparisons of topsoil geochemical elements from Northwest China and eastern Tibetan Plateau identify the plateau interior as Tibetan dust source.SCIENCE OF THE TOTAL ENVIRONMENT,798.
MLA	Yang, Shengli,et al."Comparisons of topsoil geochemical elements from Northwest China and eastern Tibetan Plateau identify the plateau interior as Tibetan dust source".SCIENCE OF THE TOTAL ENVIRONMENT 798(2021).