Diversity of Acronychia pedunculata+Garcinia oblongifolia+Itea chinensis community in Dapeng Peninsula
In order to understand the plant community diversity in Dapeng Peninsula Nature Reserve,Shenzhen,a square quadrat of 100 m × 100 m was established within the reserve to analyze plant community species composition,vertical structural diversity,and species diversity.The results revealed a total of 175 plant species in the community,be-longing to 66 families and 123 genera.Among them,there were mainly 160 species of angiosperms,12 spcies of ferns,and 3 species of gymnosperms.The community exhibited distinct stratification,classifiable into tree layer,shrub layer,and seedling layer.The tree layer was characterized by dominant species such as Acronychia pedunculata,Garcinia ob-longifolia,and Itea chinensis.The shrub layer featured predominant species like Bowringia callicarpa,Cibotium barometz,and Psychotria asiatica,while the seedling layer was dominated by Lindsaea orbiculata,Melodinus cochinchi-nensis,and Gahnia tristis.In terms of species diversity,the richness pattern among different growth forms followed the order of tree layer＞shrub layer＞seedling layer.Simpson index,Shannon-Wiener index,and Pielou index demonstrat-ed a trend of shrub layer＞tree layer＞seedling layer.The index values for each layer were relatively high,with small variations,indicating a complicated and stable community structure with a uniform distribution of individuals of different species.
community characteristicdiversityDapeng Peninsula Nature Reserve in Shenzhen
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