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Temperature reconstructions for the last 1.74-Ma on the eastern Tibetan Plateau based on a novel pollen-based quantitative method
Zhao, Yan1,2; Liang, Chen1,3; Cui, Qiaoyu1; Qin, Feng1; Zheng, Zhuo4; Xiao, Xiayun5; Ma, Chunmei6; Felde, Vivian A.7,8; Liu, Yaoliang1; Li, Quan1; Zhang, Zhiyong1; Herzschuh, Ulrike9; Xu, Qinghai10; Wei, Haicheng11; Cai, Maotang1; Cao, Xianyong12; Guo, Zhengtang2,13; Birks, H. John B.7,8,14
2021-04-01
Source PublicationGLOBAL AND PLANETARY CHANGE
ISSN0921-8181
Volume199Pages:23
Corresponding AuthorZhao, Yan(zhaoyan@igsnrr.ac.cn)
AbstractTerrestrial palaeo-temperature data are of great value in improving our understanding of past climate and they provide a basis for evaluating climate simulations. Such data are, however, poorly constrained for long time scales. In addition to the scarcity of high-quality continuous time-series, finding proxies with a clear response to past temperature changes and developing appropriate reconstruction methods are major challenges. We present a new and robust method ? Locally-weighted Weighted-average partial least squares (LW-WAPLS) to reconstruct quantitative temperature changes based on a high-resolution 1.74-Ma pollen record from the Zoige Basin on the eastern Tibetan Plateau, where the vegetation today is mainly controlled by temperature. The reconstructed mean annual (MAT) and warmest month (MTWM) temperatures reveal a general cooling trend with two major shifts at-1.54 and 0.62 Ma BP, and regular glacial-interglacial variability ranging from4 to 2 ?C and from 8 to 16 ?C, respectively. They indicate-4?5 ?C (MAT) and 5?6 ?C (MTWM) magnitudes of glacial-interglacial temperatures. Both statistical and ecological evaluations validate the reliability of the reconstructions. The reconstructions provide important insights into the spatial aspects of long-term terrestrial temperature change. LW-WAPLS shows advantages over both the traditional modern analogue technique and non-linear transfer-function methodologies such as WAPLS for reconstructing the broad-scale climate changes for the Zoige Basin, by combining the strength of both methods. The LW-WAPLS approach potentially provides a robust tool to develop pollen-based climate reconstructions over long time-scales. Superscript/Subscript Available
KeywordTibetan Plateau Pollen LW-WAPLS Glacial-interglacial scale Temperature variability
DOI10.1016/j.gloplacha.2021.103433
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFA 0600501] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41690113] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20070101] ; European Research Council[741413] ; VISTA (Norwegian Academy of Science and Letters and Equinor) project IGNEX-eco[6166]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; European Research Council ; VISTA (Norwegian Academy of Science and Letters and Equinor) project IGNEX-eco
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000632983300002
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162049
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhao, Yan
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Hebei GEO Univ, Dept Land Resource & Urban Planning, Shijiazhuang 050031, Hebei, Peoples R China
4.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Peoples R China
5.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China
6.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China
7.Univ Bergen, Dept Biol Sci, Postbox 7803, N-5020 Bergen, Norway
8.Univ Bergen, Bjerknes Ctr Climate Res, Postbox 7803, N-5020 Bergen, Norway
9.Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Periglacial Res Sect, Telegraphenberg A43, D-14473 Potsdam, Germany
10.Hebei Normal Univ, Coll Resources & Environm Sci, Shijiazhuang 050024, Hebei, Peoples R China
11.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
12.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China
13.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
14.UCL, Environm Change Res Ctr, London WC16BT, England
Recommended Citation
GB/T 7714
Zhao, Yan,Liang, Chen,Cui, Qiaoyu,et al. Temperature reconstructions for the last 1.74-Ma on the eastern Tibetan Plateau based on a novel pollen-based quantitative method[J]. GLOBAL AND PLANETARY CHANGE,2021,199:23.
APA Zhao, Yan.,Liang, Chen.,Cui, Qiaoyu.,Qin, Feng.,Zheng, Zhuo.,...&Birks, H. John B..(2021).Temperature reconstructions for the last 1.74-Ma on the eastern Tibetan Plateau based on a novel pollen-based quantitative method.GLOBAL AND PLANETARY CHANGE,199,23.
MLA Zhao, Yan,et al."Temperature reconstructions for the last 1.74-Ma on the eastern Tibetan Plateau based on a novel pollen-based quantitative method".GLOBAL AND PLANETARY CHANGE 199(2021):23.
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