摘要
为探究海岛植物区系的组成和特征,对福建平潭岛维管植物区系特征进行分析,并与同纬度地区的福州国家森林公园维管植物进行对比.结果显示平潭岛种子植物及其地理分布类型具有以下特点:平潭岛共有维管植物83科234属327种,含被子植物80科231属323种;海岛植物群落以双子叶植物为主体,小科和单属科的数量占总科数比例高达40.97%和50.60%,大科、中科仅占2.41%和6.02%;属水平上,单种属所占比例最高,达76.50%;平潭岛种子植物属的分布区类型热带与温带交汇的特点明显,热带分布型属和温带分布型属分别占调查总数(世界广布型属除外)的60.41%和37.56%,其中泛热带分布型属和北温带分布型属是平潭岛植物区系的重要组成部分;相比福州森林公园维管植物的种类、区系组成、分布类型,热带、温带成分交汇特点相同.2地科、属、种水平上的相似程度分别为28.21%、10.89%、4.33%,其维管植物科、属、种数较大陆高出12.16%、105.26%和106.96%,被子植物的属、种数比大陆分别高出108.11%和108.39%.平潭岛维管植物与大陆植物的区系分布及特征相似,但受到海岛环境、气候、人为活动等影响,其植物区系组成较大陆有明显差异.
In order to explore the composition and characteristics of island flora,the characteristics of vascular flora in Pingtan Island,Fujian were analyzed and compared with vascular plants in Fuzhou National Forest Park at the same latitude.The results show that Pingtan Island’s seed plants and their geographical distribution types have the following characteristics:Pingtan Island has a total of 83 families,234 genera and 327 species of vascular plants,including angiosperms,80 families,231 genera and 323 species,and the island plant community is dominated by dicotyledons;Among them,the number of small families and single genera of the angiosperms accounted for 40.97%and 50.60% of the total families,while big families and mebium families only accounted for 2.41% and 6.02%.At the genus level,the single species accounted for the highest proportion.It reached 76.50%;the distribution type of Pingtan Island’s seed plant genus was characterized by the intersection of tropical and temperate.The tropical and temperate genus accounted for 60.41% and 37.56% of the total number of surveys(except for the widely distributed genus in the world).Among them,pan-tropical and north temperate genus are important components of the flora of Pingtan Island.Compared with the species,flora composition and distribution type of vascular plants in Fuzhou Forest Park,tropical and temperate components have the same characteristics.The degree of similarity at the level of geology,genera, and species was 28.21%,10.89%,and 4.33%,respectively.The number of vascular plants, genera,and species was 12.16%,105.26%,and 106.96% higher than that of the mainland.The number of species was 108.11% and108.39% higher than that of the mainland,respectively.The flora distribution and characteristics of vascular plants in Pingtan Island are similar to those of continental plants,but their flora composition is significantly different from that on the mainland due to the influence of island environment,climate,and human activities.
作者
左冰菁
程夕
张增可
王齐
黄柳菁
ZUO Bingjing;CHENG Xi;ZHANG Zengke;WANG Qi;HUANG Liujing(College of Landscape Archietecture,Fujian Agriculture and Forestry University,Fuzhou 350002,China)
出处
《河南科技学院学报（自然科学版）》
2020年第3期27-33,共7页
Journal of Henan Institute of Science and Technology(Natural Science Edition)
基金
福建省自然科学基金面上项目(2018J01699)
福建省教育厅科研项目(JAT170198)。
