| 河南天目山森林种子植物区系研究 |
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| 引用本文： | 董东平,叶永忠,袁志良.河南天目山森林种子植物区系研究[J].林业资源管理,2007(4):38-42,48. |
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| 作者姓名： | 董东平 叶永忠 袁志良 |
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| 作者单位： | 1. 许昌学院城市与环境学院,河南,许昌,461000
2. 河南农业大学生命科学学院,河南,郑州,450000 |
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| 基金项目： | 国家自然科学基金，河南省高等学校新世纪优秀人才支持计划，河南省教育厅自然科学基金 |
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| 摘 要： | 经调查,河南天目山有森林种子植物1 824种,隶属于155科,707属。种子植物区系有如下特点:种类组成丰富,优势现象明显;植物区系复杂多样,以温带分布为主,热带成分较为丰富,南北过渡特征明显;在属的层次上,与各大陆的温带、热带保持着较为广泛的联系;在种的水平上,通过华东与东亚植物区系联系密切;天目山植物区系起源古老,有单种属植物40种,中国特有属25个,国家珍稀濒危保护植物20种,均为第三纪植物区系成分。
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| 关 键 词： | 种子植物 植物区系 相似性系数 河南天目山 |
| 文章编号： | 1002-6622（2007）04-0038-05 |
| 收稿时间： | 2007-02-12 |
| 修稿时间： | 2007-02-122007-05-29 |
Study on Flora Diversity of Seed Plants in the Forest of Tianmu Mountains, Henan Province |
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| DONG Dongping,YE Yongzhong,YUAN Zhiliang.Study on Flora Diversity of Seed Plants in the Forest of Tianmu Mountains, Henan Province[J].Forest Resources Management,2007(4):38-42,48. |
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| Authors: | DONG Dongping YE Yongzhong YUAN Zhiliang |
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| Institution: | 1. Department of Environment Science, Xuchang University, Xuchang 461000, Henan Province, China ; 2. Department of life Science , Henan Agricultural University, Zhengzhou 450000 Henan Provinc , China |
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| Abstract: | Tianmu Mountains lie in the southwest of Henan between 33°31′-32°38′ N latitude and 113°45′-113°55′E,In Henan,there are 1824 species of seed plants,belonging to 707 genera and 155 families in Tianmu Mountains.The areal types of the genera and the species are abundant.Based on their geographical distribution,707 genera are classified into 15 areal types with most belonging to the temperate distribution pattern plant(64.49%) and many belong to tropical one(31.53%) and 1824 species are classified into 15 areal types.Analysis of the floristic elements based on genera and species shows that the temperate floristic elements are predominant in Tianmu Mountains.It is highest percentage of temperate distribution elements of genera and East Asia distribution elements of species show that this area has obvious temperate characteristics of the flora.The seed plant in the area is age-old in origin,which contains 20 rare and threatened species,25 endemic genera and 40 monotypic genera.The flora of Tianmu Mountains is of typical tertiary flora system. |
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| Keywords: | seed plant flora coefficient of similarity Tianmu Mountains Henan |
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