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Hydrological changes in Shuangchi Lake, Hainan Island, tropical China, during the Little Ice Age
Zhang, WC(Zhang, Wenchao)1,2; Yan, H(Yan, Hong)1,3; Lu, FY(Lu, Fengyan)1; Ma, XL(Ma, Xiaolin)1; Dodson, John1; Heijins, Henk1,4; Zhou, WJ(Zhou, Weijian)5; An, ZS(An, Zhisheng)1; Liu, CC(Liu, Chengcheng)1; Cheng, P(Cheng, Peng)1,2; Li, JY(Li, Jianyong)1
2018-09-10
发表期刊Quaternary International
卷号487期号:2018页码:54-60
摘要

Hydrological changes in East Asia during the last millennium have been addressed by numerous earlier studies, but spatial characteristics and dynamics in precipitation variations during the Little Ice Age (LIA) remain unclear, perhaps especially due to the sparse coverage of high-resolution hydrological records from tropical and sub-tropical regions in East Asia. In this study, a sediment core was obtained from Shuangchi Lake in northern Hainan Island, tropical China, of which geochemical proxies including the ratios of Rb/Sr, Rb/K, Zr/Rb and Si/Ti were analyzed using an X-ray fluorescence (XRF) core scanner. Meanwhile, the grain size distribution of sediments was also determined. The results show that the Rb/Sr and Rb/K ratios decreased significantly during the LIA, whilst the Zr/Rb and Si/Ti ratios increased along with higher median grain size. The changes of these proxies likely suggest that precipitation was enhanced during the LIA in this region, and this was consistent with other hydrological records from tropical southern China. The synthesis of hydrological records from East Asia and the tropical Pacific suggest that the co-existence of a contracted Intertropical Convergence Zone (ITCZ) and strengthened Pacific Walker circulation (PWC) could contribute synchronously to the increased precipitation in the tropical region of southern China during the LIA.

关键词Hainan Island Xrf Core Scanner Elemental Ratios Hydrological Changes Little Ice Age
DOI10.1016/j.quaint.2017.09.007
收录类别SCI
所属项目编号41522305 ; 41403018 ; QYZDB-SSW-DQC001 ; 132B61KYSB20160003 ; QNLM2016ORP0202
语种英语
项目资助者National Natural Science Foundation of China ; research Projects from Chinese Academy of Sciences ; Qingdao National Laboratory for Marine Science and Technology of China
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5294
专题古环境研究室
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
4.School of Earth and Environmental Sciences, University of Wollongong, Wollongong 2500, Australia
5.Institute for Environmental Research, Australian Nuclear Science and Technology Organization, Lucas Heights, New South Wales 2232, Australia
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Zhang, WC,Yan, H,Lu, FY,et al. Hydrological changes in Shuangchi Lake, Hainan Island, tropical China, during the Little Ice Age[J]. Quaternary International,2018,487(2018):54-60.
APA Zhang, WC.,Yan, H.,Lu, FY.,Ma, XL.,Dodson, John.,...&Li, JY.(2018).Hydrological changes in Shuangchi Lake, Hainan Island, tropical China, during the Little Ice Age.Quaternary International,487(2018),54-60.
MLA Zhang, WC,et al."Hydrological changes in Shuangchi Lake, Hainan Island, tropical China, during the Little Ice Age".Quaternary International 487.2018(2018):54-60.
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