Biodiversity and Spatial Distribution of Tree Species in Nomascus hainanus Habitats in Hainan
Understanding the plant diversity in the habitats of Nomascus hainanus is of great importance for the recovery and development of the species.This study took the habitats of Nomascus hainanus C and E groups as the object,analyzing the plant community diversity,diameter class distribution,spatial distribution patterns,and interspecific associations.The results showed that:the dominant tree species in the group C and E habitats to-taled 250 and 370,respectively.There were 874 and 864 plant individuals with a diameter of more than 10 cm in group C and E habitats,respectively.Diameter class distribution showed that most individuals of the dominant tree species in both habitats were in the 10~20 cm interval.The spatial distribution pattern showed that the dif-ferent plant populations in group C and E habitats were either clustered or randomly distributed depending on the scale.In terms of interspecific association,the Castanopsis tonkinensis population in the group C habitat had no significant correlation with other tree species at the scale of 0~20m;the interspecific association of Liq-uidambar formosana population in the E group habitat with other tree species was mainly negative at the large scale.The research is expected to provide basic data for the protection of Nomascus hainanus habitats and the diversity of their food plants.
Nomascus hainanus habitatsTree species diversitySpatial distribution patternsInterspecific as-sociation