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Artemisia/Chenopodiaceae ratio from surface lake sediments on the central and western Tibetan Plateau and its application
Ma, QF1; Zhu, LP1,2,3; Wang, JB1,2; Ju, JT1; Lu, XM1,2; Wang, Y1; Guo, Y1; Yang, RM1,3; Kasper, T4; Haberzettl, T4; Tang, LY (唐领余)5
2017-08
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume479Pages:138-145
Abstract

Artemisia and Chenopcidiaceae are the two main pollen taxa in studies of lake sediments on the central and western Tibetan Plateau (TP). In this paper, we present Artemisia/Chenopodiaceae (A/C) ratios in pollen assemblages of surface sediments from 42 lakes on the central and western TP. Relationships between vegetation, climate and A/C ratio are investigated. The results show that the A/C ratio in the study region can distinguish desert from steppe vegetation. As a whole, the A/C ratio was higher than 1.2 in the steppe vegetation and lower than 1.2 in the desert vegetation zone. Statistical analysis revealed that the A/C ratio can be used as a moisture indicator on the TP. Based on the A/C ratio in pollen assemblages of sediment core TAN12-2 from Lake Tangra Yumco, we reconstructed the vegetation and climate history of the southern TP during the transitional period from the late glacial to the Holocene (17.5-10 cal kyr BP). From 17.5 to 16 cal kyr BP, desert vegetation occurred and climate was extremely dry. During 16-15 cal kyr BP, desert was replaced by steppe vegetation and climate became wetter. From 15 to 10 cal kyr BP, the lake basin of Tangra Yumco was covered by the steppe vegetation and climate tended to be more humid. Comparing our results with other lacustrine records on the TP, we found that the Indian summer monsoon (ISM) significantly affected the southern TP earlier than the northeastern TP. (C) 2017 Elsevier B.V. All rights reserved.

KeywordPollen Ratio Lake Tangra Yumco Transitional Period Tibetan Plateau Indian Summer Monsoon
DOI10.1016/j.palaeo.2017.05.002
Indexed BySCI
Language英语
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000402945200011
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/13453
Collection中国科学院南京地质古生物研究所
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res ITP, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Syst, Beijing 100101, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
4.Friedrich Schiller Univ Jena, Inst Geog, D-07743 Jena, Germany;
5.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Ma, QF,Zhu, LP,Wang, JB,et al. Artemisia/Chenopodiaceae ratio from surface lake sediments on the central and western Tibetan Plateau and its application[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2017,479:138-145.
APA Ma, QF.,Zhu, LP.,Wang, JB.,Ju, JT.,Lu, XM.,...&Tang, LY .(2017).Artemisia/Chenopodiaceae ratio from surface lake sediments on the central and western Tibetan Plateau and its application.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,479,138-145.
MLA Ma, QF,et al."Artemisia/Chenopodiaceae ratio from surface lake sediments on the central and western Tibetan Plateau and its application".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 479(2017):138-145.
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