干旱区生态环境知识资源中心(Arid): Abrupt climate variability since the last deglaciation based on a high-resolution peat dust deposition record from southwest China

Arid

DOI	10.1016/j.quascirev.2020.106749
	Abrupt climate variability since the last deglaciation based on a high-resolution peat dust deposition record from southwest China
	Peng, Haijun; Bao, Kunshan; Yuan, Lingui; Uchida, Masao; Cai, Cheng; Zhu, Yongxuan; Hong, Bing; Guo, Qian; Ding, Hanwei; Yao, Hu; Hong, Yetang
通讯作者	Hong, B (corresponding author), Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 99 Lincheng Rd West, Guiyang 550081, Guizhou, Peoples R China. ; Bao, KS (corresponding author), South China Normal Univ, Sch Geog, Shipai Campus, Guangzhou 510631, Peoples R China.
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
出版年	2021
卷号	252
英文摘要	The mechanism of abrupt climate changes in east Asia since the last deglaciation remains poorly explored due to the low number of high-resolution geological archives. Here we present a major and trace element including rare-earth elements (REEs) analysis of a 6 m peat archive from the Hengduan Mountains to reconstruct the rapid changes in monsoonal climate since the last deglaciation. The physicochemical parameters and Ca/Mg ratio illustrated the ombrotrophic characterization of the Yuexi peat core over the last 8800 years. Abrupt increases in dust fluxes were identified during the Old Dryas (OD), the Younger Dryas (YD), and the 4.2 kyr cold event periods. The mineral dust flux remained quite stable and low during the middle Holocene. The lowest average dust deposition rate between 8800 and 5000 cal yr BP represents a baseline of long-term atmospheric dust flux in China. The Y/Sigma REE, La/Yb, Y/ Yb, Y/Er indicate that deserts in northwest China, the Loess Plateau, and Tibetan soils were the dominant dust sources to the Yuexi peatland. The comparison with global climatic records suggested a teleconnection between the climate change in southwest China and North Atlantic cooling events, which implies that the abrupt variation in dust fluxes was linked with Asian monsoons variations. Our results also reveal that increased human activities significantly contribute to the dust fluxes during the late Holocene. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Atmospheric dust Trace elements Rare earth elements Last deglaciation Asian monsoon Peatland
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604567600012
WOS关键词	C-14 YR BP ; SUMMER MONSOON ; JURA MOUNTAINS ; TRACE-ELEMENTS ; ASIAN DUST ; BOG ; HOLOCENE ; GEOCHEMISTRY ; AMERICA ; OCEAN
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348117
作者单位	[Peng, Haijun; Zhu, Yongxuan; Hong, Bing; Guo, Qian; Ding, Hanwei; Yao, Hu; Hong, Yetang] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 99 Lincheng Rd West, Guiyang 550081, Guizhou, Peoples R China; [Peng, Haijun; Hong, Bing] CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China; [Bao, Kunshan] South China Normal Univ, Sch Geog, Shipai Campus, Guangzhou 510631, Peoples R China; [Yuan, Lingui; Guo, Qian; Ding, Hanwei; Yao, Hu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Uchida, Masao] Natl Inst Environm Studies, Onogawa 16-2, Tsukuba, Ibaraki 3050053, Japan; [Cai, Cheng] Guizhou Inst Technol, Guiyang 550003, Guizhou, Peoples R China
推荐引用方式 GB/T 7714	Peng, Haijun,Bao, Kunshan,Yuan, Lingui,et al. Abrupt climate variability since the last deglaciation based on a high-resolution peat dust deposition record from southwest China[J],2021,252.
APA	Peng, Haijun.,Bao, Kunshan.,Yuan, Lingui.,Uchida, Masao.,Cai, Cheng.,...&Hong, Yetang.(2021).Abrupt climate variability since the last deglaciation based on a high-resolution peat dust deposition record from southwest China.QUATERNARY SCIENCE REVIEWS,252.
MLA	Peng, Haijun,et al."Abrupt climate variability since the last deglaciation based on a high-resolution peat dust deposition record from southwest China".QUATERNARY SCIENCE REVIEWS 252(2021).