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题名: Large-scale dataset from China gives new insights into leaf margin-temperature relationships
作者: Chen, Wen-Yun1, 3; Su, Tao3; Adams, Jonathan M.4; Jacques, Frederic M. B.2; Ferguson, David K.5; Zhou, Zhe-Kun1, 2
刊名: PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
关键词: Leaf margin analysis (LMA) ; Paleoclimate ; Synthetic flora ; Transfer functions ; Temperature ; China
英文摘要: Leaf margin analysis (LMA) is an important method of estimating paleotemperatures from fossil leaf floras or modern floras. Although some calibration has been carried out based upon large-scale studies of modern forests, most of this research has been in North America and Europe, with relatively little calibration work in East Asia. In the present study, we used species range maps of 3116 native dicot trees of China to derive synthetic local floras for each county from the Chinese humid region, and compared the percentage of untoothed leaf margined species with several temperature and precipitation related parameters. The results confirm the generally strong relationship between the proportion of species with untoothed leaf margins and climatic parameters within China. Leaf habit (deciduous vs. evergreen) does not strongly affect this relationship. The transfer function obtained from China, while not identical, is similar to those obtained from other regions, and is affected by regional restrictions, such as complex topography and relic taxa. As such it clarifies the potential range of error inherent in the LMA method as applied to paleodimate reconstruction. It is possible, however, that with the close similarity of the modern Chinese tree floras to Neogene floras in the Northern Hemisphere, the present estimate offers a better transfer function for reconstructing the Neogene paleoclimate in various regions without extremely cold conditions across the Northern Hemisphere. (C) 2014 Published by Elsevier B.V.
出版日期: 2014-05-15
卷号: 402, 页码:73-80
语种: 英语
收录类别: SCI
学科分类: Physical Geography ; Geology ; Paleontology
ISSN号: 0031-0182
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18141
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Seoul Natl Univ, Coll Nat Sci, Sch Biol Sci, Lab Geog Ecol, Seoul 151747, South Korea
5.Univ Vienna, Dept Palaeontol, A-1090 Vienna, Austria

Recommended Citation:
Chen,Wen-Yun;Su,Tao;Adams,JonathanM.;Jacques,FredericM.B.;Ferguson,DavidK.;Zhou,Zhe-Kun.Large-scale dataset from China gives new insights into leaf margin-temperature relationships,PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2014,402():73-80
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