| 山西种子植物区系地理研究 |
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| 引用本文： | 李跃霞,上官铁梁.山西种子植物区系地理研究[J].地理科学,2007,27(5):724-729. |
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| 作者姓名： | 李跃霞 上官铁梁 |
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| 作者单位： | 山西大学环境与资源学院,山西,太原,030006 |
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| 摘 要： | 山西省植物种类多样性相对丰富,共有野生种子植物143科、816属和2 576种,科内属种分布极不平衡,有趋向大科分布特点;山西种子植物区系以温带分布区类型占绝对优势,共有410属、1 540种,分别占总种子植物总属数的50.2%,总种数59.8%;该区系具有一定数量的古老成分;地理成分混杂且具有明显的过渡性,在中国植物属的15个分布类型和31个变型中,该区系就占15个分布类型和16个变型.
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| 关 键 词： | 种子植物 植物区系 分布区类型 多样性 |
| 文章编号： | 1000-0690（2007）05-0724-06 |
| 收稿时间： | 2006-05-15 |
| 修稿时间： | 2006-09-17 |
Floristic Diversity of Seed Plants in Shanxi Province |
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| LI Yue-Xia,SHANGGUAN Tie-Liang.Floristic Diversity of Seed Plants in Shanxi Province[J].Scientia Geographica Sinica,2007,27(5):724-729. |
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| Authors: | LI Yue-Xia SHANGGUAN Tie-Liang |
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| Institution: | College of Environment Science, Shanxi University, Taiyuan, Shangxi 030006 |
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| Abstract: | This paper studied floristic diversity of seed plants in Shanxi Province using some basic methods and principles of the floristic geography and based on the composition and geography elements of the families,genera,species of plants from Shanxi Province.The results are as follows: The diversity is abundant in this area,there are 2576 species of seed plants in Shanxi Province,which belong to 816 genera and 143 families(not including cultivated plants).Among them there are about 6 families,13 genera,28 species are in Gymnospermeae;137 families,803 genera,2548 species in Angiosperm,which shows the distribution of plants in Shanxi Province is consistent with the climatic features of the area.Analysis of the floristic elements based on families,genera,and species shows that they are very complex in Shanxi Province.Among the areal-types of Chinese genera of seed plants,there are 15 types and 16 subtypes in this area.Temperate floristic elements are significantly dominant in genera,in which percents of North Temperate distribution is the highest,25.5% in the total number of genera in this area.It is indicated that this area has obvious temperate characteristics of the flora,and it also has the characteristices of permeation,intersection,transition and frangibility. |
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| Keywords: | flora seed plants areal-types diversity |
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