干旱区生态环境知识资源中心(Arid): Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau

Arid

DOI	10.1007/s12665-018-8025-y
	Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau
	Liu, Xiang-Jun 1,2; Cong, Lu 2,3; An, Fuyuan 1,2; Miao, Xiaodong 4; Chongyi, E.5
通讯作者	Liu, Xiang-Jun
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:1
英文摘要	Many lakes in the Qinghai-Tibetan Plateau (QTP) have aeolian sands distributed in their downwind shores. However, it has been rarely systemically investigated on whether the downwind dune sand and lake evolved in association with each other or they evolved independently. Here we take the well known Qinghai Lake and its downwind sand area as a case study to investigate the issue of water-sand interaction. Grain size, magnetic susceptibility and geochemical data along with optically stimulated luminescence (OSL) ages suggest that the downwind eastern shore sandy lands co-varied with the lake level fluctuations (or lake extension changes) of the Qinghai Lake during the Holocene epoch. During the early Holocene lake lowstands (11-9ka, ka is 1000years), vast areas of exposed lacustrine sediments were eroded by prevailing westerly winds, therefore, causing sand to accumulate at the eastern shore bajada areas along the west piedmonts of the Riyue Mount, and to expand along the Daotang River valley. In contrast, during the mid to late Holocene lake highstands (7-1.2ka), eastern shore dune sands were largely stabilized, and loess accumulated and even paleosol developed, leading to substantial shrinkage of the eastern shore sandy lands. In addition, using GIS tool, we reconstructed the spatial extensions of the lakeduring highstand (Mid-Holocene) and lowstand (Early Holocene), and eastern shore desert range of early Holocene. As a result, this study indicates a close connection between the lakes in QTP and the aeolian sands downwind.
英文关键词	Aeolian sediments Lake level variations Qinghai Lake Qinghai-Tibetan Plateau Holocene
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000455022900023
WOS关键词	EOLIAN DEPOSITS ; CARBON ISOTOPES ; AREA ; PROVENANCE ; LOESS ; CHINA ; BASIN ; EVOLUTION ; HISTORY
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215393
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China; 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Qinghai Prov Key Lab Geol & Environm Salt Lake, Xining 810008, Qinghai, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Linyi Univ, Sch Resources & Environm Sci, Linyi 276000, Peoples R China; 5.Qinghai Normal Univ, Sch Geog, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiang-Jun,Cong, Lu,An, Fuyuan,et al. Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau[J],2019,78(1).
APA	Liu, Xiang-Jun,Cong, Lu,An, Fuyuan,Miao, Xiaodong,&Chongyi, E..(2019).Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,78(1).
MLA	Liu, Xiang-Jun,et al."Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 78.1(2019).