干旱区生态环境知识资源中心(Arid): Abrupt climatic shift at similar to 4000 cal. yr BP and late Holocene climatic instability in arid Central Asia: Evidence from Lop Nur saline lake in Xinjiang, China

Arid

DOI	10.1016/j.scitotenv.2021.147202
	Abrupt climatic shift at similar to 4000 cal. yr BP and late Holocene climatic instability in arid Central Asia: Evidence from Lop Nur saline lake in Xinjiang, China
	Li, Wen; Mu, Guijin; Lin, Yongchong; Zhang, Dongliang
通讯作者	Li, W (corresponding author), East China Univ Technol, Sch Earth Sci, Nanchang 330013, Jiangxi, Peoples R China. ; Mu, GJ (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	784
英文摘要	Although the trends and driving mechanisms of Holocene climate change in arid Central Asia (ACA) on various timescales have attracted much research interest over the past few decades, a major question remains regarding whether the changes were gradual or abrupt. We reconstructed the pattern of Holocene climate change at Lop Nur saline lake in northwestern China, ACA, using multiple climatic proxies (grain size, TOC, sediment color, and magnetic properties). The results demonstrate that the Holocene climatic pattern in the Lop Nur region during the past 8400 years can be divided into two distinct stages, with the boundary dated to similar to 4000 cal. yr B.P. During the first stage (8400-4000 cal. yr B.P.), the climate was relatively dry and stable; and during the second stage the climate was more humid with high-amplitude variations. This finding is corroborated by other paleoclimatic records from the surrounding area and it is also consistent with the latest international strata chronology for the Holocene. The abrupt climatic shift at similar to 4000 cal. yr B.P. and late Holocene climatic instability in ACA are highlighted in this study. The decreasing temperatures in the study region during the middle to late Holocene were modulated by Northern Hemisphere summer insolation, which led to decreasing evaporation and thus to the wetting trend of the middle through late Holocene. The abrupt change at similar to 4000 cal. yr B.P. was caused mainly by a more negative trend of the North Atlantic Oscillation (NAO) and by an enhanced El Nino - Southern Oscillation (ENSO). (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Holocene climate change Arid Central Asia Lop Nur
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000657590200004
WOS关键词	OF-PHASE RELATIONSHIP ; MOISTURE EVOLUTION ; ALTAI MOUNTAINS ; SURROUNDING AREAS ; BOSTEN LAKE ; GRAIN-SIZE ; ICE-AGE ; LOESS ; RECORD ; COLOR
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368517
作者单位	[Li, Wen] East China Univ Technol, Sch Earth Sci, Nanchang 330013, Jiangxi, Peoples R China; [Mu, Guijin; Zhang, Dongliang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; [Mu, Guijin] Cele Natl Stn Observat & Res Desert Grassland Eco, Cele 848300, Peoples R China; [Lin, Yongchong] Minnan Normal Univ, Sch Hist & Geog, Zhangzhou 363000, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Li, Wen,Mu, Guijin,Lin, Yongchong,et al. Abrupt climatic shift at similar to 4000 cal. yr BP and late Holocene climatic instability in arid Central Asia: Evidence from Lop Nur saline lake in Xinjiang, China[J]. 中国科学院新疆生态与地理研究所,2021,784.
APA	Li, Wen,Mu, Guijin,Lin, Yongchong,&Zhang, Dongliang.(2021).Abrupt climatic shift at similar to 4000 cal. yr BP and late Holocene climatic instability in arid Central Asia: Evidence from Lop Nur saline lake in Xinjiang, China.SCIENCE OF THE TOTAL ENVIRONMENT,784.
MLA	Li, Wen,et al."Abrupt climatic shift at similar to 4000 cal. yr BP and late Holocene climatic instability in arid Central Asia: Evidence from Lop Nur saline lake in Xinjiang, China".SCIENCE OF THE TOTAL ENVIRONMENT 784(2021).