干旱区生态环境知识资源中心(Arid): Temperature-induced dry climate in basins in the northeastern Tibetan Plateau during the early to middle Holocene

Arid

DOI	10.1016/j.quascirev.2020.106311
	Temperature-induced dry climate in basins in the northeastern Tibetan Plateau during the early to middle Holocene
	Wu, Duo 1; Zhou, Aifeng 1; Zhang, Jiawu 1; Chen, Jianhui 1; Li, Guoqiang 1; Wang, Qiang 1; Chen, Lin1 ; Madsen, David 1; Abbott, Mark 2; Cheng, Bo 3; Chen, Fahu1,4
通讯作者	Wu, Duo ; Zhou, Aifeng
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2020
卷号	237
英文摘要	Ongoing global warming will have a significant impact on terrestrial water resources, especially in arid and semi-arid regions. Assessing changes in the hydrology and water resources in inland basins under a warm climate in the recent geological past can provide a valuable context for assessing their current and possible future status. Here we present a record from a rapidly-accumulating sediment core from Lake Dalianhai in the Gonghe Basin in the northeastern Tibetan Plateau. The chronology of the uppermost 51.63 m of the core is based on AMS C-14 dates from 11 samples of terrestrial plant microfossils and 14 bulk samples. Hydroclimatic variations within the basin during the last 23,000 yr were reconstructed from sedimentological and geochemical parameters and paleoshoreline records. The results indicate that the Gonghe Basin experienced relatively arid conditions during 23,000-14,700 cal yr BP. Lake Dalianhai was refilled at 14,700 cal yr BP and a high lake level was sustained until the beginning of the Holocene, as indicated by changes in the concentration of OH-GDGTs. However, the lake level was low during the early to middle Holocene (11,700-4700 cal yr BP) and increased during the late Holocene. Based on a comparison with lake level records and aeolian sand deposits from the region, we conclude that the climate was extremely dry in basins in the northeastern Tibetan Plateau during the early to middle Holocene. We propose that strong evaporation combined with high summer temperatures during the early to middle Holocene were responsible for the dry climate at that time, rather than changes in mid-latitude precipitation. Given the situation occurred during the early to middle Holocene, ongoing global warming may seriously threaten water resources in inland China, even if precipitation increases substantially. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Tibetan plateau Lake Dalianhai Holocene Lake level Temperature Dry climate
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000533150700012
WOS关键词	QINGHAI LAKE AREA ; INTERTROPICAL CONVERGENCE ZONE ; SUMMER MONSOON EVOLUTION ; ARID CENTRAL-ASIA ; GONGHE BASIN ; MOISTURE EVOLUTION ; AEOLIAN SEDIMENTS ; LATE PLEISTOCENE ; GENGGAHAI LAKE ; YELLOW-RIVER
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	兰州大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319271
作者单位	1.Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; 2.Univ Pittsburgh, Dept Geol & Environm Sci, Pittsburgh, PA 15260 USA; 3.Cent China Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Peoples R China; 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wu, Duo,Zhou, Aifeng,Zhang, Jiawu,et al. Temperature-induced dry climate in basins in the northeastern Tibetan Plateau during the early to middle Holocene[J]. 兰州大学, 中国科学院青藏高原研究所,2020,237.
APA	Wu, Duo.,Zhou, Aifeng.,Zhang, Jiawu.,Chen, Jianhui.,Li, Guoqiang.,...&Chen, Fahu.(2020).Temperature-induced dry climate in basins in the northeastern Tibetan Plateau during the early to middle Holocene.QUATERNARY SCIENCE REVIEWS,237.
MLA	Wu, Duo,et al."Temperature-induced dry climate in basins in the northeastern Tibetan Plateau during the early to middle Holocene".QUATERNARY SCIENCE REVIEWS 237(2020).