珍稀濒危植物长苞铁杉群落植物区系分析
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Floristic Analysis of a Tsuga longibracteata Community in Fujian Province
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    摘要:

    对天宝岩国家级自然保护区3600 m2的长苞铁杉群落植被进行调查。结果表明,该群落有维管束植物49科86属140种,其中蕨类植物7科7属9种,裸子植物2科4属4种,被子植物40科75属127种。植物区系地理成分中,科属组成以泛热带分布为主,温带成分占有一定比例;种组成以中国特有分布和东亚分布为主,而温带成分占较大比例,并伴有一定的热带成分;区系起源古老,保留有大量原始植物,且群落具有濒危性。

    Abstract:

    A floristic survey was made of a Tsuga longibracteata community in Tianbaoyan National NatureReserve in Fujian Province. There are 140 species of vascular plants belonging to 49 families and 86 genera in the investigated quadrats with a total area of 3 600 m2 in the community, in which pteridophytes comprise 7 families, 7 genera and 9 species, gymnosperms 2 families, 4 genera and 4 species, and angiosperms 40 families, 75 genera and 127 species. The floristic elements at the family and genus levels are mainly pantropical with a certain proportion of temperate elements, whereas at the species level, species endemic to China and species of East Asia are the dominants with larger proportion of temperate elements and certain proportion tropical elements. Th e longibracteata community containing considerable amount of primitive taxa is considered to be endangered. The areal types of vascular plants in the community at family,genus and species levels are tabulated.

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林勇明, 吴承祯, 洪伟, 吴继林, 闫淑君, 封磊.珍稀濒危植物长苞铁杉群落植物区系分析[J].热带亚热带植物学报,2004,12(6):552~56

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