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Hydroclimatic variability in loess δDwax records from the central Chinese Loess Plateau over the past 250 ka
Wang, Z(Wang, Zheng)1; An, ZS(An, Zhisheng)1,2; Liu, WG(Liu, Weuiguo)2; Liu, ZH(Liu, Zhonghui)1,2; Qiang, XK(Qiang, Xiaoke)3; Zhang, F(Zhang, Fan)1
2018-04-15
发表期刊Journal of Asian Earth Sciences
卷号155期号:2018页码:49-57
摘要This study reports hydrogen isotopic records from the central Chinese Loess Plateau (CLP) over the past 250 ka. After eliminating the influence of ice and local temperatures, the δDwax records extracted from two loess sites at Xifeng and Luochuan can be taken to represent arid/humid alternations in the hydrological environment in this marginal Asian Summer Monsoon (ASM) region; they also contain integrated information on summer precipitation patterns and the corresponding responses to these changes by predominant vegetation cover types. These arid/humid alternations show 100 ka, 40 ka and 20 ka cycles. An increase in precipitation in association with an enhanced summer monsoon has historically been taken to be the major factor driving a humid environment in the central CLP. However, hydroclimatic changes in δDwax records differ for the central CLP, central China and southern China. Over a 20 ka cycle, the influence of solar insolation on hydroclimatic changes can be shown to be consistent throughout the central CLP. However, changes in the relative location of the land and sea may have caused different hydroclimatic responses between southern China and the central CLP on a glacial-interglacial scale. The hydroclimatic variability in the central CLP would suggest that an enhanced summer monsoon due to climatic warming is the key to understanding decreased drought degree in this marginal monsoonal region.
DOI10.1016/j.jseaes.2017.11.008
收录类别SCI
所属项目编号2013CB955900 ; 41473022 ; 41773010
语种英语
项目资助者National Key Funds of China ; National Natural Science Foundation of China
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5293
专题古环境研究室
作者单位1.State Key Laboratory of Loess and Quaternary Geology, IEE, CAS, Xi’an 710075, China
2.School of Human Settlement and Civil Engineering, Xi'an Jiaotong University, Xi’an 710049, China
3.Department of Earth Sciences, The University of Hong Kong, Hong Kong, China
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GB/T 7714
Wang, Z,An, ZS,Liu, WG,et al. Hydroclimatic variability in loess δDwax records from the central Chinese Loess Plateau over the past 250 ka[J]. Journal of Asian Earth Sciences,2018,155(2018):49-57.
APA Wang, Z,An, ZS,Liu, WG,Liu, ZH,Qiang, XK,&Zhang, F.(2018).Hydroclimatic variability in loess δDwax records from the central Chinese Loess Plateau over the past 250 ka.Journal of Asian Earth Sciences,155(2018),49-57.
MLA Wang, Z,et al."Hydroclimatic variability in loess δDwax records from the central Chinese Loess Plateau over the past 250 ka".Journal of Asian Earth Sciences 155.2018(2018):49-57.
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