干旱区生态环境知识资源中心(Arid): Cenozoic Ephedraceae adaptation to global cooling in northwestern China

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DOI	10.3724/SP.J.1226.2011.00375
	Cenozoic Ephedraceae adaptation to global cooling in northwestern China
	Miao, YunFa; Yan, XiaoLi; Shao, YaJun; Yang, Bao
通讯作者	Miao, YF
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2011
卷号	3 期号:5 页码:375-380
英文摘要	Ephedraceae has been applied largely as a drought indicator to reconstruct Cenozoic paleoenvironment and paleoclimate. However, temperature indication of Ephedraceae has been largely ignored. Here, we provide a record of Ephedraceae percentage spanning from the Early Eocene to Middle Miocene (52-17 Myr B.P.) in the Xining Basin, northeastern Tibetan Plateau. This record is comparable to a compiled Cenozoic Ephedraceae record from five other basins in northwestern China. Both records show Ephedraceae percentages were high during the Early Eocene, and decreased gradually from the Middle Eocene to Late Oligocene, then maintained a stable level since the Late Oligocene. By comparing these two Ephedraceae records with the marine oxygen isotope record, we discuss the variation of Ephedraceae percentage in Middle Cenozoic in response to global temperature change. Ephedraceae percentage was high in the Early Paleogene, associated with subtropical or tropical vegetation types in a global greenhouse climate, and decreased in Early Oligocene, associated with global cooling, suggesting that Ephedraceae is warm-tolerant during the Paleogene. The low Ephedraceae percentages in the Late Oligocene and Miocene were uncoupled with global warming, which may imply that Ephedraceae began to adapt to a eurythermic climate in the inland desert environment of western China. Such adaptation may be a response to the high topography of the Tibetan Plateau.
英文关键词	Ephedraceae adaptation temperature Tibetan Plateau Cenozoic
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000422289700001
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	兰州大学 ; 中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/329838
作者单位	[Miao, YunFa; Shao, YaJun; Yang, Bao] Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China; [Yan, XiaoLi] Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China; [Yan, XiaoLi] Lanzhou Univ, West Environm & Climate Changes Inst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Miao, YunFa,Yan, XiaoLi,Shao, YaJun,et al. Cenozoic Ephedraceae adaptation to global cooling in northwestern China[J]. 兰州大学, 中国科学院西北生态环境资源研究院,2011,3(5):375-380.
APA	Miao, YunFa,Yan, XiaoLi,Shao, YaJun,&Yang, Bao.(2011).Cenozoic Ephedraceae adaptation to global cooling in northwestern China.SCIENCES IN COLD AND ARID REGIONS,3(5),375-380.
MLA	Miao, YunFa,et al."Cenozoic Ephedraceae adaptation to global cooling in northwestern China".SCIENCES IN COLD AND ARID REGIONS 3.5(2011):375-380.