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DOI	10.1016/j.palaeo.2020.110094
	Reconstruction of temperature and precipitation spanning the past 28 kyr based on branched tetraether lipids from Qionghai Lake, southwestern China
	Wang, Gen; Wang, Yongli; Wei, Zhifu; He, Wei; Ma, Xueyun; Zhang, Ting
通讯作者	Wei, ZF (通讯作者)，Chinese Acad Sci, Gansu Prov Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Peoples R China. ; Wang, YL (通讯作者)，Chinese Acad Sci, CAS Ctr Excellence Life & Paleoenvironm, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China.
发表日期	2021
ISSN	0031-0182
EISSN	1872-616X
卷号	562
英文摘要	The Indian summer monsoon (ISM) significantly influences the climate of southwestern China; however, continuous quantitative temperature reconstructions since the Last Glacial Maximum are rare, which limits our understanding of ISM evolution. In this study, we analyzed the branched glycerol dialkyl glycerol tetraethers (brGDGTs) from a lacustrine sediment core from Qionghai Lake to reconstruct the paleoclimatology of southwestern subtropical China over the past 27.7 kyr. Our results suggest that the brGDGTs in Qionghai Lake sediments were probably sourced from catchment soils, with some contributions from in situ lacustrine production. We found that the temperature of the Last Glacial Maximum and Holocene Climatic Optimum was similar to 3 degrees C cooler and similar to 2.5 degrees C warmer than present-day conditions, respectively, based on brGDGTs-reconstructed mean annual air temperatures (MATs). Generally, temperature and precipitation showed synchronous paleovariability in ISM regions. Moreover, Northern Hemisphere summer insolation was the dominant control on climate variability in ISM regions on the precessional scale, while Atlantic Meridional Overturning Circulation activity, Intertropical Convergence Zone positioning, and glacial boundary conditions (ice sheet extent and sea surface temperature) contributed to climate shifts on millennial timescales.
关键词	DIALKYL GLYCEROL TETRAETHERS NORTHWESTERN YUNNAN PROVINCE ALPINE LACUSTRINE RECORD LAST GLACIAL MAXIMUM MONSOON PRECIPITATION TIBETAN PLATEAU HOLOCENE VEGETATION SUMMER TEMPERATURE AIR-TEMPERATURE HIGH-RESOLUTION
英文关键词	Paleotemperature; Branched GDGTs; Indian summer monsoon; Last Glacial Maximum; Holocene Climatic Optimum
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000604584600029
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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/253961
作者单位	[Wang, Gen; Wei, Zhifu; He, Wei; Ma, Xueyun; Zhang, Ting] Chinese Acad Sci, Gansu Prov Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Peoples R China; [Wang, Yongli] Chinese Acad Sci, CAS Ctr Excellence Life & Paleoenvironm, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China; [He, Wei; Ma, Xueyun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Gen,Wang, Yongli,Wei, Zhifu,et al. Reconstruction of temperature and precipitation spanning the past 28 kyr based on branched tetraether lipids from Qionghai Lake, southwestern China[J]. 中国科学院西北生态环境资源研究院,2021,562.
APA	Wang, Gen,Wang, Yongli,Wei, Zhifu,He, Wei,Ma, Xueyun,&Zhang, Ting.(2021).Reconstruction of temperature and precipitation spanning the past 28 kyr based on branched tetraether lipids from Qionghai Lake, southwestern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,562.
MLA	Wang, Gen,et al."Reconstruction of temperature and precipitation spanning the past 28 kyr based on branched tetraether lipids from Qionghai Lake, southwestern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 562(2021).