Plant community characteristics and spatial distribution of dominant tree species in Baiyun Mountain National Forest Park
The 1 hm2 temperate deciduous forest in Baiyun Mountain National Forest Park was taken as the research object to analyze the community species composition,the DBH structure,and the spatial distribution pattern of the main species.The results showed that:a total of 1 165 woody plants belonging to 43 species,29 genera,and 19 families;the size structure of species was in the shape of a reversed letter "J",and the majority of individuals belonged to the small-diameter class;Quercus (Quercus aliena var.acuteserrata.) and larch (Larix gmelinii) were the predominant species in the community;rare species and occasional species accounted for 13.95% and 46.51% of the total species,respectively;the predominant species in the plot mainly showed an aggregate distribution pattern;after excluding the influence of habitat heterogeneity with the heterogeneity poisson model,the species mainly showed as randomly distributed.
community structurepoint patterndiameter class structurespecies diversity