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Increased seasonality and aridity drove the C4 plant expansion in Central Asia since the Miocene-Pliocene boundary

文献类型：期刊论文

作者Shen, Xingyan1,3; Wan, Shiming1,2; Colin, Christophe4; Tada, Ryuji5; Shi, Xuefa2,6; Pei, Wenqiang1,3; Tan, Yang7; Jiang, Xuejun8; Li, Anchun1
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2018-11-15
卷号502页码:74-83
关键词C4 plant expansion westerlies black carbon Central Asia Japan Sea Miocene-Pliocene
ISSN号0012-821X
DOI10.1016/j.epsl.2018.08.056
通讯作者Wan, Shiming(wanshiming@ms.qdio.ac.cn)
英文摘要Continuous and high-resolution records of the content, mass accumulation rate (MAR) and delta C-13 values of black carbon obtained from Integrated Ocean Drilling Program (IODP) Site U1430 in the southwestern Japan Sea have been established and combined with previous results obtained from Central Asia. The main objective of this work is to reconstruct the historical changes in vegetation types (C3-C4), and to constrain the driving force of C4 plant expansion over the last 13 Ma. The stable carbon isotope value of black carbon (delta C-13(BC)) shows a major shift since the Miocene-Pliocene boundary (similar to 5.3 Ma), suggesting significant expansion of C4 plants in broad areas of Central Asia, including the inland basins of northwestern China and the Loess Plateau. However, a decline in the content and MAR of black carbon reveals the absence of any link between fire and C4 plant expansion in Central Asia, due to the dramatic decrease in biomass under a drying regime. On a global scale, asynchronous expansion of C4 plants suggests that regional hydroclimatic change, rather than decline in CO2 concentration, was the most important factor to influence C4 expansion. We propose that the increased seasonality and the enhanced long-term aridity driven by the concurrent decline in winter westerly vapor, and increase in East Asian summer monsoon precipitation, were the main driving forces of C4 plant expansion in broad areas of Central Asia. Variations in winter westerly moisture have played a significant role in changes of regional climate and vegetation in Central Asia since the late Miocene. (C) 2018 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[41622603] ; National Natural Science Foundation of China[41576034] ; National Natural Science Foundation of China[U1606401] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-03] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; Aoshan Talents program of Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-ES01] ; [2016ASKJ13]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000447567800007
出版者ELSEVIER SCIENCE BV
源URL[http://ir.qdio.ac.cn/handle/337002/160463]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Wan, Shiming
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Paris Saclay, Univ Paris Sud, CNRS, Lab GEOsci Paris Sud GEOPS,UMR 8148, Batiment 504, F-91405 Orsay, France
5.Univ Tokyo, Dept Earth & Planetary Sci, Tokyo 1130033, Japan
6.SOA, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China
7.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
8.China Geol Survey, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Xingyan,Wan, Shiming,Colin, Christophe,et al. Increased seasonality and aridity drove the C4 plant expansion in Central Asia since the Miocene-Pliocene boundary[J]. EARTH AND PLANETARY SCIENCE LETTERS,2018,502:74-83.
APA Shen, Xingyan.,Wan, Shiming.,Colin, Christophe.,Tada, Ryuji.,Shi, Xuefa.,...&Li, Anchun.(2018).Increased seasonality and aridity drove the C4 plant expansion in Central Asia since the Miocene-Pliocene boundary.EARTH AND PLANETARY SCIENCE LETTERS,502,74-83.
MLA Shen, Xingyan,et al."Increased seasonality and aridity drove the C4 plant expansion in Central Asia since the Miocene-Pliocene boundary".EARTH AND PLANETARY SCIENCE LETTERS 502(2018):74-83.

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来源：海洋研究所

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