Climatic envelope of evergreen sclerophyllous oaks and their present distribution in the eastern Himalaya and Hengduan Mountains
Yang, Qing-Song1,2; Chen, Wen-Yun1; Xia, Ke1,2; Zhou, Zhe-Kun1
2009-05-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN0529-1526
卷号47期号:3页码:183-190
摘要Evergreen sclerophyllous oaks (the E. S. oaks, Quercus section Heterobalanus) are the dominant species of the local ecosystem in the eastern Himalaya and the Hengduan Mountains, southwest China. In this study, we document the climatic envelope of the seven E.S. oak species and examine the relationships between climate and their distribution. This was done using a principal components analysis (PCA) and multiple regression analysis (MRA) of nine climatic indices. The main climatic envelope of the E.S. oaks were: mean temperature of the warmest month (MTW)=12.0-19.5 degrees C, warmth index (WI)=33.2-88.9 degrees C month, annual biotemperature (BT)=-6.9--0.3 degrees C, coldness index (Cl)=-30.4--10.1 degrees C month, mean temperature of the coldest month (MTC)=-3.7-3.0 degrees C and annual precipitation (AP)=701-897 nun at the lower limits; and MTW=8.3-16.1 degrees C, WI=15.7-59.1 degrees C month, BT=3.6-8.9 degrees C, CI=-55.4--19.3 degrees C month, MTC=8.3-16.1 degrees C and AP=610-811 mm, at the upper limits. The climatic range of the E.S. oaks is wide and includes two climatic zones, the cool-temperature zone and the subpolar zone. The PCA and MRA results suggest that the thermal climate plays a major role and precipitation plays a secondary role in controlling the large-scale distribution of the E.S. oaks, except Quercus monimotricha. In thermal regimes, BT and/or MTW are most important for both lower and upper limits of the E.S. oaks. Furthermore, our results indicate that the upper distribution limits of the E.S. oaks are less determined by low temperatures and their duration (CI) than by other factors.
关键词Climatic Indices Distribution Limits Multiple Regression Analysis Principal Components Analysis Quercus Section Heterobalanus
资助信息State Key Basic Research and Development Plan of China [2003CB415102]; National Natural Science Foundation of China [30170077, 30670159]
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/14317
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Yang, Qing-Song,Chen, Wen-Yun,Xia, Ke,et al. Climatic envelope of evergreen sclerophyllous oaks and their present distribution in the eastern Himalaya and Hengduan Mountains[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(3):183-190.
APA Yang, Qing-Song,Chen, Wen-Yun,Xia, Ke,&Zhou, Zhe-Kun.(2009).Climatic envelope of evergreen sclerophyllous oaks and their present distribution in the eastern Himalaya and Hengduan Mountains.JOURNAL OF SYSTEMATICS AND EVOLUTION,47(3),183-190.
MLA Yang, Qing-Song,et al."Climatic envelope of evergreen sclerophyllous oaks and their present distribution in the eastern Himalaya and Hengduan Mountains".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.3(2009):183-190.
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