Mid-Miocene C4 expansion on the Chinese Loess Plateau under an enhancedAsian summer monsoon

doi:10.1016/j.jseaes.2018.02.014

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	Mid-Miocene C4 expansion on the Chinese Loess Plateau under an enhancedAsian summer monsoon
	Dong,JB(Dong,Jibao)1; Liu,ZH(Liu,Zhonghui)2; An, ZS(An, Zhisheng)1,3; Liu,WG(Liu,Weiguo)1,4; Zhou,WJ(Zhou.Weijian)1,3; Qiang,XK(Qiang, Xiaoke)1; Lu, FY(Lu,Fengyan)1; Dong,Jibao
	2018-06-01
发表期刊	Journal of Asian Earth Sciences
卷号	158 期号:2018 页码:153-159
文章类型	期刊论文
摘要	Atmospheric CO2 starvation, aridity, fire and warm season precipitation have all been proposed as major contributors to C4 plant expansion during the Late Miocene. However, the driving factors responsible for the distribution of C4 plants in the early and mid-Miocene still remain enigmatic. Here we report pedogenic carbon and oxygen isotope data (δ13Cpedo, δ18Opedo), along with magnetic susceptibility (MS) results, from the Zhuang Lang drilling core on the Chinese Loess Plateau (CLP). Elevated δ13Cpedo values (>−5‰) signal a prominent C4 expansion and substantially increased δ18Opedo and MS values indicate enhanced Asian summer monsoon (ASM) precipitation. Both of these conditions are observed during the Mid-Miocene Climatic Optimum (MMCO), 14.5–17 million years ago. The marked increase in C4 plants, associated with warm temperatures and increased precipitation, strongly suggests the control of an enhanced ASM on C4 expansion on the CLP during the MMCO. This finding contrasts with the late-Miocene C4 expansion associated with cooling and drying conditions observed in low latitudes and argues for regionally specific control of C4 plant distribution/expansion.
关键词	C4 Expansion Pedogenic Carbonate Chinese Loess Plateau Asian Summer Monsoon Mid-miocene Climatic Optimum
DOI	10.1016/j.jseaes.2018.02.014
收录类别	SCI
所属项目编号	41420104008 ; 41290250 ; 41302152 ; QYZDY-SSW-DQC001 ; ZDBS-SSW-DQC001 ; 2013CB955901
语种	英语
项目资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy ofSciences ; Chinese Academy ofSciences ; NationalBasic Research Program of China ; NationalBasic Research Program of China
引用统计	被引频次：19[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/361006/5307
专题	加速器质谱中心
通讯作者	Dong,Jibao
作者单位	1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth and Environment, CAS, Xi’an, Shaanxi 710061, China 2.Department of Earth Sciences, The University of Hong Kong, Hong Kong 3.Interdisciplinary Research Center of Earth Science Frontier, Beijing Normal University, Beijing 100875, China 4.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China
第一作者单位	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Dong,JB,Liu,ZH,An, ZS,et al. Mid-Miocene C4 expansion on the Chinese Loess Plateau under an enhancedAsian summer monsoon[J]. Journal of Asian Earth Sciences,2018,158(2018):153-159.
APA	Dong,JB.,Liu,ZH.,An, ZS.,Liu,WG.,Zhou,WJ.,...&Dong,Jibao.(2018).Mid-Miocene C4 expansion on the Chinese Loess Plateau under an enhancedAsian summer monsoon.Journal of Asian Earth Sciences,158(2018),153-159.
MLA	Dong,JB,et al."Mid-Miocene C4 expansion on the Chinese Loess Plateau under an enhancedAsian summer monsoon".Journal of Asian Earth Sciences 158.2018(2018):153-159.

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