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DOI	10.3389/feart.2021.745972
	Reconstruction of Climate Changes on Based delta O-18(carb) on the Northeastern Tibetan Plateau: A 16.1-cal kyr BP Record From Hurleg Lake
	Ma, Xueyun; Wei, Zhifu; Wang, Yongli; Wang, Gen; Zhang, Ting; He, Wei; Yu, Xiaoli; Ma, He; Zhang, Pengyuan; Li, Shangkun; Wei, Jingyi; Fan, Qiaohui
通讯作者	Wei, ZF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou, Gansu, Peoples R China. ; Wang, YL (通讯作者)，Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China.
发表日期	2021
EISSN	2296-6463
卷号	9
英文摘要	Hydroclimate evolution history and changes in the Tibetan Plateau play significant roles in depicting paleoclimate and evaluating climatic conditions in the coming future. However, the interaction of the westerlies and the Asian monsoon complicates our understanding of the mechanism of climate variation over the Tibetan Plateau. In this study, we assessed the paleoclimate of Hurleg Lake, which was previously located in the convergence area of the East Asian monsoon and westerly wind. We first reconstructed the climatic conditions based on fined-grained authigenic carbonate delta O-18 (delta O-18(carb)), plant-derived proxies of C/N, and n-alkane-derived delta C-13(31). In the Hurleg Lake, delta O-18(carb) was controlled by delta O-18 changes of the lake water and evaporation. The climate evolution since similar to 16.1 cal kyr BP can be classified into three stages. The Lateglacial (16.1-11.0 cal kyr BP) was characterized by a warm-wet climate in the beginning, followed by a cold-dry climate since 12.0 cal kyr BP. Typical warm and cold phases occurred during 14.8-12.0 cal kyr BP and 12.0-11.1 cal kyr BP, which may correspond to the Bolling/Allerod (B/A) and Younger Dryas periods, respectively. The early to mid-Holocene was generally characterized by a warm-wet climate; however, notable cold-dry intervals occurred at similar to 8.3 cal kyr BP. The Late Holocene (after 4.8 cal kyr BP) displayed a significantly cold-wet climate. Finally, we examined the possible mechanisms responsible for the climate variability in the study area. The results showed that the long-term warm trend in the Lateglacial and colder trend after early Holocene was controlled by insolation. The Asian summer monsoon and the westerlies played a significant role in determining moisture sources during the Lateglacial. The East Asian monsoon contributed greatly to the moisture variation from the early to mid-Holocene, whereas the westerly winds dominated during the late Holocene. Combined, our findings highlight the complex changes in hydroclimate conditions since the last glacial in the Tibetan Plateau and provide crucial implications for comprehending the hydroclimate pattern in the transition zone of westerlies and Asian monsoon.
关键词	HOLOCENE MONSOON CLIMATE OXYGEN-ISOTOPE RECORD WAX N-ALKANES ASIAN MONSOON SUMMER MONSOON CARBON ISOTOPES ORGANIC-MATTER MODERN PRECIPITATION MILLENNIAL-SCALE QINGHAI LAKE
英文关键词	carbonate isotopes; Asian monsoon; westerly; climate change; Tibetan Plateau
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000726215200001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253950
作者单位	[Ma, Xueyun; Wei, Zhifu; Wang, Gen; Zhang, Ting; He, Wei; Yu, Xiaoli; Li, Shangkun; Fan, Qiaohui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou, Gansu, Peoples R China; [Ma, Xueyun; He, Wei; Yu, Xiaoli; Ma, He; Zhang, Pengyuan; Li, Shangkun; Wei, Jingyi] Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; [Wang, Yongli; Ma, He; Zhang, Pengyuan; Wei, Jingyi] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xueyun,Wei, Zhifu,Wang, Yongli,et al. Reconstruction of Climate Changes on Based delta O-18(carb) on the Northeastern Tibetan Plateau: A 16.1-cal kyr BP Record From Hurleg Lake[J]. 中国科学院西北生态环境资源研究院,2021,9.
APA	Ma, Xueyun.,Wei, Zhifu.,Wang, Yongli.,Wang, Gen.,Zhang, Ting.,...&Fan, Qiaohui.(2021).Reconstruction of Climate Changes on Based delta O-18(carb) on the Northeastern Tibetan Plateau: A 16.1-cal kyr BP Record From Hurleg Lake.FRONTIERS IN EARTH SCIENCE,9.
MLA	Ma, Xueyun,et al."Reconstruction of Climate Changes on Based delta O-18(carb) on the Northeastern Tibetan Plateau: A 16.1-cal kyr BP Record From Hurleg Lake".FRONTIERS IN EARTH SCIENCE 9(2021).