摘要
通过野外调查和查阅文献资料,分析了佛顶山自然保护区蕨类植物区系的种类组成和地理特征。结果表明:(1)佛顶山自然保护区共有蕨类植物27科61属161种(含种以下分类单位),其中以鳞毛蕨科、水龙骨科、铁角蕨科等为主;(2)蕨类植物区系成分复杂,区内温带种占绝对优势,为总种数的70.2%。其中,东亚分布有110种,占总种数的68.35%。热带、亚热带种占到了总种数的23.6%,说明区内蕨类植物与热带、亚热带有着较为密切的联系;(3)与贵州大部分地区处在植物分布区的过渡地段上一样,比较多的属(45.9%)在这里只有1种分布,具有过渡性质。
The floristic composition and geographic feature of pteridophyte in Fodingshan Nature Reserve were analyzed based on field investigation and data collection. A total of 27 families, 61genera and 161species （containing the taxonomic unit below the species） of pteridophyte in Fodingshan Nature Reserve were ob- served, most of which were Dryopteridaceae, Polypodiaceae or Aspleniaceae. Type of pteridoflora was compli- cated. In this area, the pteridophyte accounted for 70.2% of the total species, and the temperate species were overwhelming. Among them, 110 species were the East Asia species, accounting for 68.35% of the to- tal, which reflected that the pteridophyte in Fodingshan Nature Reserve belonged to the East-Asia distribu- tion. The tropic distribution species were 23.6% , indicating that pteridophyte in this area had close relation- ship with tropic distribution. Same as the most areas in Guizhou province, Fodingshan Nature Reserve located in transition section, a large part of genera contained only one species, suggesting that the pteridophyte in this area had transitivity.
出处
《山地农业生物学报》
2012年第5期424-427,共4页
Journal of Mountain Agriculture and Biology
基金
贵州省科技厅攻关项目[黔科合SY(2010)3014]
