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温州大罗山维管束植物多样性和区系分析

Floristic Analysis and Diversity of Vascular Plants in the Daluo Mountain Area

  • 摘要: 为充分了解温州大罗山区域的维管束植物多样性和区系组成,通过野外踏查对大罗山的维管束植物进行了全面调查,并结合文献和标本查阅,获得大罗山维管束植物名录。结果表明:该区植物共有114科341属529种,其中,裸子植物有6科11属16种,被子植物有95科312属484种,蕨类植物有13科18属29种。单属科和单种属分别占总科数的47.37%和总属数的71.26%。种子植物科属的分布区类型以泛热带分布最多,并且热带分布明显多于温带分布;蕨类植物科属的分布区类型以泛热带分布为主。以上数据表明,温州大罗山维管束植物区系组成具有明显的亚热带性质。此外,本次调查共确定了以菊科Asteraceae为优势科的入侵植物39种,以及金荞麦Fagopyrum dibotrys和中华猕猴桃Actinidia chinensis 2种国家二级保护植物。

     

    Abstract: In order to obtain a comprehensive understanding of the vascular plant diversity and floristic composition in the Daluo Mountain area in Wenzhou, Zhejiang Province, extensive field investigations were conducted, supplemented by relevant literature and specimen reviews, resulting in a checklist of vascular plants from Daluo Mountain area. The findings revealed that there was a total of 529 species belonging to 114 families and 341 genera, including 16 species of gymnosperms from 6 families and 11 genera, 484 species of angiosperms from 95 families and 312 genera, and 29 species of ferns from 13 families and 18 genera. Monogeneric families and monospecific genera accounted for 47.37% of the total families and 71.26% of the total genera, respectively. At both family and genus levels of seed plants, pantropical distribution types were predominant, with tropical distributions significantly exceeding temperate ones. At the family and genus levels of the ferns, the pantropical distribution was also dominated. The above indicated that the floristic composition of vascular plants in the Daluo Mountain area exhibited distinct subtropical characteristics. Additionally, the survey identified 39 invasive plant species, with Asteraceae being the dominant family, and two species of ClassⅡstate key protected wild plants, Fagopyrum dibotrys and Actinidia chinensis.

     

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