Temporal-spatial variations in aeolian flux on the Chinese Loess Plateau during the last 150 ka

doi:10.1017/S0016756819001067

IEECAS OpenIR > 古环境研究室

	Temporal-spatial variations in aeolian flux on the Chinese Loess Plateau during the last 150 ka
	Liu, Yuming 1,2; Liu, Xingxing 1,3; Ma, Long 4,5; Kang, Shugang1,3 ; Qiang, Xiaoke1,3 ; Guo, Fei 1,2; Sun, Youbin 1,3
通讯作者	Sun, Youbin(sunyb@ieecas.cn)
	2020-05-01
发表期刊	GEOLOGICAL MAGAZINE
ISSN	0016-7568
卷号	157 期号:5 页码:757-767
摘要	Aeolian dust deposits from continent and ocean have been extensively investigated to reflect past changes in source aridity and atmospheric circulations. Aeolian flux (AF) as a quantitative dust proxy has been widely used in both palaeoenvironmental reconstruction and numerical simulation. However, available AF data on the Chinese Loess Plateau (CLP) is too limited to assess the temporal-spatial variations at glacial-interglacial timescales, and therefore cannot be used as robust input parameters in palaeoclimate models. Here we investigate eight loess profiles along two N-S-aligned transects on the CLP to quantitatively estimate the AF variations over the last glacial-interglacial cycle. We first establish a refined chronological framework based on optically stimulated luminescence chronology and pedostratigraphic correlation. AF was then estimated by multiplying the sedimentation rate and bulk density. The results show that the AF increases from 2-18 g cm(-2) ka(-1) in the southeastern CLP to 14-105 g cm(-2) ka(-1) in the northwestern CLP. At glacial-interglacial scales, the AF varies from 2-20 g cm(-2) ka(-1) during the last interglacial to 8-105 g cm(-2) ka(-1) in the last glaciation. Due to more spatial coverage and better age constraints, our AF data can be used to refine other AF datasets and to improve the proxy-model comparison.
关键词	Chinese Loess Plateau aeolian flux temporal-spatial variations glacial-interglacial cycle
DOI	10.1017/S0016756819001067
关键词[WOS]	GRAIN-SIZE DISTRIBUTION ; NORTH PACIFIC-OCEAN ; LATE PLEISTOCENE ; DUST DEPOSITION ; INTERGLACIAL PALEOSOL ; EQUATORIAL PACIFIC ; EOLIAN DEPOSITION ; MONSOON CLIMATE ; TIBETAN PLATEAU ; ASIAN MONSOON
收录类别	SCI ; SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFA0601902] ; National Natural Science Foundation of China[41525008] ; National Natural Science Foundation of China[41472163]
WOS研究方向	Geology
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000534526500006
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14788
专题	古环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Sun, Youbin
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 4.Northwest Univ, State Key Lab Continental Dynam, Dept Geol, Xian 710069, Peoples R China 5.Northwest Univ, Shaanxi Key Lab Early Life & Environm, Dept Geol, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yuming,Liu, Xingxing,Ma, Long,et al. Temporal-spatial variations in aeolian flux on the Chinese Loess Plateau during the last 150 ka[J]. GEOLOGICAL MAGAZINE,2020,157(5):757-767.
APA	Liu, Yuming.,Liu, Xingxing.,Ma, Long.,Kang, Shugang.,Qiang, Xiaoke.,...&Sun, Youbin.(2020).Temporal-spatial variations in aeolian flux on the Chinese Loess Plateau during the last 150 ka.GEOLOGICAL MAGAZINE,157(5),757-767.
MLA	Liu, Yuming,et al."Temporal-spatial variations in aeolian flux on the Chinese Loess Plateau during the last 150 ka".GEOLOGICAL MAGAZINE 157.5(2020):757-767.