气候变化领域集成服务门户(CCPortal): Lateglacial and Holocene climate change in the NE Tibetan Plateau: Reconciling divergent proxies of Asian summer monsoon variability

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DOI	10.1016/j.catena.2020.105089
	Lateglacial and Holocene climate change in the NE Tibetan Plateau: Reconciling divergent proxies of Asian summer monsoon variability
	Li Y.; Qiang M.; Huang X.; Zhao Y.; Leppänen J.J.; Weckström J.; Väliranta M.
发表日期	2021
ISSN	3418162
卷号	199
英文摘要	The nature of Holocene Asian summer monsoon (ASM) evolution documented by diverse natural archives remains controversial, with a contentious issue being whether or not a strong Asian summer monsoon prevailed during the early Holocene. Here we present sequences of multiple proxies measured in sediment cores from Genggahai Lake in the NE Tibetan Plateau (NETP). The results suggest that a higher lake level and relatively lower terrestrial vegetation cover occurred synchronously during the early Holocene (11.3–8.6 kyr cal BP), compared with the period from 8.6 to 6.9 kyr cal BP. This finding clearly reflects the existence of different hydroclimatic conditions between the lake and its catchment due to diverse driving mechanisms. The early Holocene high stand of the lake, as demonstrated by the stratigraphic variability of the remains of aquatic biota, may have responded to the strengthened ASM and increased monsoonal precipitation; the relatively low vegetation cover in the marginal region of the Asian monsoon during the early Holocene, and the coeval widespread active sand dune mobility in both the NE Tibetan Plateau and NE China, most likely resulted from a low level of effective moisture due to high evaporation, and hence they cannot be interpreted as evidence of a weak ASM. Our results potentially reconcile the current divergent interpretations of various proxy climate records from the region. Our findings suggest that the ASM evolution was characterized by a consistent pattern across the monsoonal regions, as indicated by the oxygen isotope record of Chinese speleothems. © 2020 Elsevier B.V.
英文关键词	China; Holocene; Lake level; Micropaleontology; Monsoon; Vegetation
语种	英语
scopus关键词	Catena
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/158260
作者单位	Key Laboratory of Desert and Desertification; Northwest Institute of Eco-Environment and Resources; Chinese Academy of Sciences; Lanzhou; 730000; China; School of Geography; South China Normal University; Guangzhou; 510631; China; Key Laboratory of Western China's Environmental Systems (MOE); College of Earth and Environmental Sciences; Lanzhou University; Lanzhou; 730000; China; Environmental Change Research Unit; Ecosystems and Environment Research Programme and Helsinki Institute of Sustainability Science; Faculty of Biological and Environmental Sciences; P.O. Box 65; 00014 University of Helsinki; Finland
推荐引用方式 GB/T 7714	Li Y.,Qiang M.,Huang X.,et al. Lateglacial and Holocene climate change in the NE Tibetan Plateau: Reconciling divergent proxies of Asian summer monsoon variability[J]. 中国科学院西北生态环境资源研究院,2021,199.
APA	Li Y..,Qiang M..,Huang X..,Zhao Y..,Leppänen J.J..,...&Väliranta M..(2021).Lateglacial and Holocene climate change in the NE Tibetan Plateau: Reconciling divergent proxies of Asian summer monsoon variability.,199.
MLA	Li Y.,et al."Lateglacial and Holocene climate change in the NE Tibetan Plateau: Reconciling divergent proxies of Asian summer monsoon variability".199(2021).