Abstract: The floral component, vertical structure and species diversity of Phoebe bournei natural forests in Yongchun County, Fujian were evaluated. There exists 231 species of vascular plants under 87 families and 172 genera. The floristic analysis of geographic element indicated that the flora was derived typically from tropics, and dominated by pan-tropic element and tropical Asian element. Vertical structure of flora was complicated and the diversity index of shrub layer was the highest of all.

Key words: Yongchun, Fujian, Phoebe bournei nature forests, flora, species diversity

摘要： 通过对福建永春闽楠天然林群落进行系统调查,并对该群落植物区系成分、垂直结构特征和物种多样性进行分析。结果表明,该群落共有维管束植物231种,隶属于87科172属。各层次区系均以泛热带和热带亚洲成分较高。群落垂直结构复杂,物种多样性指数以灌木层最高。

关键词: 福建永春, 闽楠天然林, 植物区系, 物种多样性