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Late Holocene hydroclimatic changes inferred from a karst peat archive in the western Guizhou Plateau, SW China

文献类型：期刊论文

作者Zeng, Mengxiu6; Zeng, Qiao6; Peng, Haijun5; Wu, Yongqiu6; Li, Yue4; Song, Yougui4; Sheng, Enguo3; Wu, Yangyang2; Wang, Tianyang6; Ni, Jian1
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2022-05-15
卷号229页码:15
ISSN号1367-9120
关键词Ca-related indices Medieval Warm Period Little Ice Age SW China Karst region
DOI10.1016/j.jseaes.2022.105179
通讯作者Peng, Haijun(penghaijun@mail.gyig.ac.cn) ; Wu, Yongqiu(wuyongqiu@zjnu.edu.cn)
英文摘要The paleoenvironmental implications of Ca-related indices of peat from karst regions are poorly understood. In this study, we analyze a 450-cm peat core drilled from a sub-alpine karst mountain in the western Guizhou Plateau, SW China. This core is analyzed for carbonate contents and loss on ignition (LOI). High-resolution X-ray fluorescence (XRF) core scanning was also performed to see the variation of chemical compositions. Based on these measurements and 12 accelerator mass spectrometry (AMS)C-14 dates, we reconstructed the history of hydroclimatic shifts in SW China and explored the significance of Ca-related indices. The reconstructed hydro climatic conditions were consistent with the stalagmite, lacustrine sediment, and peat records from the regions controlled by the Indian monsoon. Abrupt decreases in precipitation and temperature were clearly shown during the 4.2 ka and Little Ice Age (LIA) cold events. High carbonate contents in the Yejiping peat during the Medieval Warm Period (MWP) were linked to a warm and humid climate. Additionally, wavelet analysis shows that variations in Ca content have 500, 125, 103, 80, 58, 43, 20, and 12-a quasi-periods, which correspond to the Gleissberg, Pacific Decadal Oscillation (PDO), and Schwabe cycles. Our results highlight the importance of Ca related indices in peat deposits from karst depressions and provide a detailed description of the MWP and the LIA.
WOS关键词SOUTHEASTERN TIBETAN PLATEAU ; ASIAN SUMMER MONSOON ; INDIAN MONSOON ; HIGH-RESOLUTION ; ICE-AGE ; ENVIRONMENTAL-CHANGES ; SOUTHWEST CHINA ; YUNNAN PROVINCE ; SOLAR-ACTIVITY ; CLIMATE-CHANGE
资助项目National Natural Science Foundation of China[42007400] ; National Natural Science Foundation of China[41773140] ; National Natural Science Foundation of China[41971111] ; National Key Research and Development Project of China[2016YFC0502101] ; Science and Technology Foundation of Guizhou Province[[2020] 1Y193] ; Science and Technology Foundation of Guizhou Province[[2019] 1317]
WOS研究方向Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000788394500001
资助机构National Natural Science Foundation of China ; National Key Research and Development Project of China ; Science and Technology Foundation of Guizhou Province
源URL[http://ir.ieecas.cn/handle/361006/17701]  
专题地球环境研究所_古环境研究室
通讯作者Peng, Haijun; Wu, Yongqiu
作者单位1.Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321004, Peoples R China
2.Guizhou Educ Univ, Sch Geog & Resources, Guiyang 550018, Peoples R China
3.Zunyi Normal Coll, Coll Resources & Environm, Zunyi 563002, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
5.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China
6.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Mengxiu,Zeng, Qiao,Peng, Haijun,et al. Late Holocene hydroclimatic changes inferred from a karst peat archive in the western Guizhou Plateau, SW China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2022,229:15.
APA Zeng, Mengxiu.,Zeng, Qiao.,Peng, Haijun.,Wu, Yongqiu.,Li, Yue.,...&Ni, Jian.(2022).Late Holocene hydroclimatic changes inferred from a karst peat archive in the western Guizhou Plateau, SW China.JOURNAL OF ASIAN EARTH SCIENCES,229,15.
MLA Zeng, Mengxiu,et al."Late Holocene hydroclimatic changes inferred from a karst peat archive in the western Guizhou Plateau, SW China".JOURNAL OF ASIAN EARTH SCIENCES 229(2022):15.

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来源：地球环境研究所

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