气候变化领域集成服务门户(CCPortal): Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China

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DOI	10.1029/2019JD031877
	Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China
	Cheng B.; Liu J.; Chen S.; Zhang Z.; Shen Z.; Yan X.; Li F.; Chen G.; Zhang X.; Wang X.; Chen J.
发表日期	2020
ISSN	2169897X
卷号	125 期号:4
英文摘要	The late Holocene is generally regarded as an interval of monsoon recession and decreased precipitation in North China. However, the extent to which this affected the status of lakes in North China is unclear. In the study, we analyzed multiple proxies (δ13C, magnetic susceptibility [χlf], and exogenous element concentrations) from Lake Mayinghai, an undisturbed alpine lake in North China. We also compared the results with previously published paleoenvironmental records from the Chinese Loess Plateau. We aimed to determine the extent of the influence of variations in the East Asian summer monsoon (EASM) on the status of Lake Mayinghai during the late Holocene. The results demonstrate that negative δ13C values at Lake Mayinghai correspond to high sedimentary tree pollen content and high reconstructed precipitation, indicating that variations in δ13C likely reflect variations in vegetation and the EASM in North China. A comparison of the δ13C record with other proxies from the same core reveals an abrupt change in the EASM at ~3 kyr before present (BP), which is also evident in other regional climate records from the Chinese Loess Plateau. The rapid decline in EASM intensity at ~3 kyr BP is also consistent with changes in the status of Lake Mayinghai, Lake Gonghai, Lake Ganhai, and Lake Daihai, in that these lakes underwent an abrupt retreat after 3 kyr BP, demonstrating that the rapid decline in EASM intensity at ~3 kyr BP had a large impact on lake evolution in North China. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	abrupt climate change; East Asian summer monsoon; lake status; Late Holocene; North China
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186166
作者单位	Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China; Center for Excellence in Tibetan Plateau Earth System Sciences, Chinese Academy of Sciences, Beijing, China; Key Laboratory of Alpine Ecology (LAE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Yunnan Key Laboratory of Plateau Geographical Processes and Environmental Change, School of Tourism and Geography, Yunnan Normal University, Kunming, China; Institute of Loess Plateau, Shanxi University, Taiyuan, China
推荐引用方式 GB/T 7714	Cheng B.,Liu J.,Chen S.,et al. Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China[J],2020,125(4).
APA	Cheng B..,Liu J..,Chen S..,Zhang Z..,Shen Z..,...&Chen J..(2020).Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China.Journal of Geophysical Research: Atmospheres,125(4).
MLA	Cheng B.,et al."Impact of Abrupt Late Holocene Monsoon Climate Change on the Status of an Alpine Lake in North China".Journal of Geophysical Research: Atmospheres 125.4(2020).