Phytogeographical analysis of seed plant genera in China

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	Phytogeographical analysis of seed plant genera in China
	Guo, K; Qian, H; Wang, SL; He, JS; Zhang, JL; Wang, LS; Wang, XL; Qian, H, Illinois State Museum, Res & Collect Ctr, 1011 E Ash St, Springfield, IL 62703 USA
刊名	ANNALS OF BOTANY
	2006
卷号	98 期号:5 页码:1073-1084
关键词	Biogeography Climate Floristics Latitudinal Gradient Regionalization Seed Plants
ISSN号	0305-7364
英文摘要	Background and Aims A central goal of biogeography and ecology is to uncover and understand distributional patterns of organisms. China has long been a focus of attention because of its rich biota, especially with respect to plants. Using 290 floras from across China, this paper quantitatively characterizes the composition of floristic elements at multiple scales (i.e. national, provincial and local), and explores the extent to which climatic and geographical factors associated with each flora can jointly and independently explain the variation in floristic elements in local floras. Methods A study was made of 261 local floras, 28 province-level floras and one national-level flora across China. Genera of seed plants in each flora were assigned to 14 floristic elements according to their worldwide geographical distributions. The composition of floristic elements was related to climatic and geographical factors. Key Results and Conclusions Variations in percentages of cosmopolitan, tropical and temperate genera among local floras tend to be greater at higher latitudes than at lower latitudes. Latitude is strongly correlated with the proportions of 13 of the 14 floristic elements. Correlations of the proportions of floristic elements with longitude are much weaker than those with latitude. Climate represented by the first principal component of a principal component analysis was strongly correlated with the proportions of floristic elements in local floras (\r\ = 0.75 +/- 0.18). Geographical coordinates independently explained about four times as much variation in floristic elements as did climate. Further research is necessary to examine the roles of water-energy dynamics, geology, soils, biotic interactions, and historical factors such as land connections between continents in the past and at present in creating observed floristic patterns.
学科主题	Plant Sciences
语种	英语
WOS记录号	WOS:000241629500016
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54845]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Qian, H, Illinois State Museum, Res & Collect Ctr, 1011 E Ash St, Springfield, IL 62703 USA
推荐引用方式 GB/T 7714	Guo, K,Qian, H,Wang, SL,et al. Phytogeographical analysis of seed plant genera in China[J]. ANNALS OF BOTANY,2006,98(5):1073-1084.
APA	Guo, K.,Qian, H.,Wang, SL.,He, JS.,Zhang, JL.,...&Qian, H, Illinois State Museum, Res & Collect Ctr, 1011 E Ash St, Springfield, IL 62703 USA.(2006).Phytogeographical analysis of seed plant genera in China.ANNALS OF BOTANY,98(5),1073-1084.
MLA	Guo, K,et al."Phytogeographical analysis of seed plant genera in China".ANNALS OF BOTANY 98.5(2006):1073-1084.