Evidence of a Cooler Continental Climate in East China during the Warm Early Cenozoic

doi:10.1371/journal.pone.0155507

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	Evidence of a Cooler Continental Climate in East China during the Warm Early Cenozoic
	Zhang, Qian-Qian ; Smith, Thierry 2; Yang, Jian ; Li, Cheng-Sen
刊名	PLOS ONE
	2016
卷号	11 期号:5
ISSN号	1932-6203
DOI	10.1371/journal.pone.0155507
文献子类	Article
英文摘要	The early Cenozoic was characterized by a very warm climate especially during the Early Eocene. To understand climatic changes in eastern Asia, we reconstructed the Early Eocene vegetation and climate based on palynological data of a borehole from Wutu coal mine, East China and evaluated the climatic differences between eastern Asia and Central Europe. The Wutu palynological assemblages indicated a warm temperate vegetation succession comprising mixed needle-and broad-leaved forests. Three periods of vegetation succession over time were recognized. The changes of palynomorph relative abundance indicated that period 1 was warm and humid, period 2 was relatively warmer and wetter, and period 3 was cooler and drier again. The climatic parameters estimated by the coexistence approach (CA) suggested that the Early Eocene climate in Wutu was warmer and wetter. Mean annual temperature (MAT) was approximately 16 degrees C and mean annual precipitation (MAP) was 800-1400 mm. Comparison of the Early Eocene climatic parameters of Wutu with those of 39 other fossil floras of different age in East China, reveals that 1) the climate became gradually cooler during the last 65 million years, with MAT dropping by 9.3 degrees C. This cooling trend coincided with the ocean temperature changes but with weaker amplitude; 2) the Early Eocene climate was cooler in East China than in Central Europe; 3) the cooling trend in East China (MAT dropped by 6.9 degrees C) was gentler than in Central Europe (MAT dropped by 13 degrees C) during the last 45 million years.
学科主题	Multidisciplinary Sciences
出版地	SAN FRANCISCO
WOS关键词	COEXISTENCE APPROACH ; EARLIEST EOCENE ; NORTH-AMERICA ; FLORAL CHANGE ; PALEOCENE ; BASIN ; PLANT ; VEGETATION ; EVOLUTION ; RECONSTRUCTION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000376291100051
资助机构	Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [41210001, 31370254, 31300186] ; National Basic Research Program of ChinaNational Basic Research Program of China [2014CB954201] ; International S and T Cooperation Project of China [2009DFA32210] ; CAGS [DZLXJK201405]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25052]
专题	系统与进化植物学国家重点实验室
作者单位	1.Royal Belgian Inst Nat Sci, Direct Earth & Hist Life, Brussels, Belgium 2.Chinese Acad Geol Sci, Inst Geomech, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qian-Qian,Smith, Thierry,Yang, Jian,et al. Evidence of a Cooler Continental Climate in East China during the Warm Early Cenozoic[J]. PLOS ONE,2016,11(5).
APA	Zhang, Qian-Qian,Smith, Thierry,Yang, Jian,&Li, Cheng-Sen.(2016).Evidence of a Cooler Continental Climate in East China during the Warm Early Cenozoic.PLOS ONE,11(5).
MLA	Zhang, Qian-Qian,et al."Evidence of a Cooler Continental Climate in East China during the Warm Early Cenozoic".PLOS ONE 11.5(2016).