福建茫荡山小叶青冈群落种子植物地理成分分析

Analysis of geographical elements of seed plant of Cyclobalanopsis gracilis community in Mangdangshan Nature Reserve,Fujian Province

为丰富群落研究内容,揭示种子植物地理成分,通过对福建茫荡山小叶青冈群落样地调查和统计分析,结果表明,该群落共有7个科分布区类型和12个属分布区类型,分别占福建省种子植物科属分布区类型的63.6%、46.7%;热带成分占优势,共计23个科和50个属,分别占该群落种子植物科、属的65.7%、59.5%;温带成分共计12个科和32个属,分别占该群落种子植物科、属的34.3%、38.1%;其区系组成丰富、地理成分复杂,有明显的热带成分和部分的温带成分。

In order to enrich the content of community research and reveal the geographical components of seed plants,through the investigation and statistical analysis of the Cyclobalanopsis gracilis community sample plots in Mangdang Mountain,Fujian,the results show that,there are 7 types of family distribution areas and 12 types of genus distribution areas in this community,accounting for 63.6%and 46.7%of the seed plant families and genus distribution types in Fujian Province respectively;Tropical components dominate,with 23 families and 50 genera,accounting for 65.7%and 59.5%of the seed plant families and genera in the community,respectively;Temperate components consist of 12 families and 32 genera,accounting for 34.3%and 38.1%of the seed plant families and genera in the community,respectively.Its flora is rich in composition and complex in geographical composition,with obvious tropical elements and some temperate elements.