中文摘要：

根据11块样地的野外调查材料,分析了浙江省舟山群岛普陀樟群落的植物区系成分、种类组成、群落结构特征、群落外貌。结果表明:该群落共有维管束植物55种,分属31科48属,其中以热带分布的属占绝对优势,占总属数的52.08%;其生活型中高位芽植物占72.73%,叶级中中型叶与小型叶各占47.27%、45.45%,叶型中单叶占81.82%,复叶占18.18%,叶质中纸质叶与革质叶各占50.91%、41.82%,说明该群落具有显著的热带特征;该群落中灌木层、乔木层、草本层的物种多样性、丰富度、均匀度均偏低,但优势度相对较高;群落垂直结构层次明显,可分为乔木层、灌木层和草本层,但层间植物极度缺乏。

英文摘要：

According to the investigation data from 11 typical sampling plots in Zhoushan Islands of Zhejiang Province,the floristic element,the floristic composition,the structure features of community and the physiognomy of Cinnamomum japonicum var.chinii were analyzed.The results showed that the community was composed of 55 vascular plant species belonging to 31 families and 48 genera.The tropic genus was the main genus,which accounts for 52.08% of total genera.In the community,phanerophytes accounts for 72.73% of dominant life form;middle size leaf and small size leaf accounts for 47.27% and 45.45% of dominant leaf size,respectively;single leaf and herbaceous leaf accounts for 81.82% and 18.18% of dominant leaf form,respectively;papery leaf and coriaceous leaf accounts for 50.91% and 41.82%,respectively.Therefore,the community has significant tropic characters.The tree layer,shrub layer and herb layer in the community had relatively lower degree in diversity,abundance and uniformity of species,but had relatively higher degree in dominance.The community vertical structure could be divided into tree layer,shrub layer and herb layer,but interlayer plants extremely lack.