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  2. 地质与地球物理研究所
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  4. 中国科学院新生代地质与环境重点实验室
Changes in Paleovegetation and Climate Seasonality in Central China Over Last Two Glacial Cycles: A Stable Isotope Perspective From Land Snails

文献类型：期刊论文

作者Qin, Ben1,2; Wu, Yan3; Cui, Linlin1,4; Wu, Naiqin1,4,5; Du, Shuisheng6; Wang, Xu1,4,5; Ding, Zhongli1,4,5
刊名PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
出版日期2021-10-01
卷号36期号:10页码:18
关键词Paleoclimate stable isotopes land snails shell
ISSN号2572-4517
DOI10.1029/2021PA004295
英文摘要Modern investigations have shown that oxygen and carbon isotopes of land snail shells are useful indicators of climate and vegetation in monsoonal regions. However, stable isotope studies on snail fossil shells have seldom been done, and the reliability of those indicators needs further verification. Moreover, intrashell stable isotope analysis of individual snails is rather scarce, and seasonal variation in the glacial-interglacial monsoonal climate remains unclear. Therefore, we performed delta O-18 and delta C-13 analyses on fossil shells of cold-aridiphilous Cathaica pulveratrix and subhumidiphilous Metodontia yantaiensis from the loess section over the last two glacial cycles at the Beiyao site on the southern Chinese Loess Plateau. The delta O-18 values of fossil shells reflected monsoonal rainfall amounts and more rainfall during MIS3 and MIS7 than during MIS4 and MIS6. Meanwhile, the delta C-13 values of fossil shells indicated the relative abundance of C-3/C-4 plants and more C-4 biomass during MIS3 and MIS7 than during MIS4 and MIS6. The delta O-18 and delta C-13 values of the two species from the same horizon are significantly different, reflecting differences in their growing season and/or physiological habits. Intrashell variations in stable isotopes showed that climatic seasonality was much stronger during the glacial periods than during the interglacials. Our findings provide an environmental background for explaining past human activities at the Beiyao site. The investigation of stone artifacts showed that ancient human activities were relatively strong during MIS3 and MIS7. During these stages, the warm and humid climate with smaller seasonal contrast was favorable for the regional expansion of human activities.
WOS关键词EAST-ASIAN MONSOON ; LOESS PLATEAU ; MAGNETIC-SUSCEPTIBILITY ; CLUMPED ISOTOPES ; SHELL CARBONATES ; NORTHERN CHINA ; MODERN HUMANS ; BEIYAO SITE ; OXYGEN ; RECORD
资助项目National Key R&D Program of China[2017YFA0603400] ; Key Research Program of the Institute of Geology and Geophysics, CAS[IGGCAS-201905] ; National Natural Science Foundation of China[41572163] ; National Natural Science Foundation of China[41872080]
WOS研究方向Geology ; Oceanography ; Paleontology
语种英语
WOS记录号WOS:000711966000006
出版者AMER GEOPHYSICAL UNION
资助机构National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/103013]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Wang, Xu
作者单位1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing, Peoples R China
2.Zhejiang Univ, Sch Earth Sci, Hangzhou, Peoples R China
3.Anhui Museum, Hefei, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
5.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
6.Beijing Normal Univ, Sch Hist, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Qin, Ben,Wu, Yan,Cui, Linlin,et al. Changes in Paleovegetation and Climate Seasonality in Central China Over Last Two Glacial Cycles: A Stable Isotope Perspective From Land Snails[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2021,36(10):18.
APA Qin, Ben.,Wu, Yan.,Cui, Linlin.,Wu, Naiqin.,Du, Shuisheng.,...&Ding, Zhongli.(2021).Changes in Paleovegetation and Climate Seasonality in Central China Over Last Two Glacial Cycles: A Stable Isotope Perspective From Land Snails.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,36(10),18.
MLA Qin, Ben,et al."Changes in Paleovegetation and Climate Seasonality in Central China Over Last Two Glacial Cycles: A Stable Isotope Perspective From Land Snails".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 36.10(2021):18.

入库方式： OAI收割

来源：地质与地球物理研究所

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