Species Diversity of the Hopea chinensis Community
To understand the species diversity of the Hopea chinensis community,improve species data,and improve the protection of rare and endangered species,the community species composition was investigated and analyzed through a field quadrat setting,and its importance value and species diversity index were calculated.The results showed that:(1)the commu-nities of the four plots were rich in species,with 87 tree species belonging to 38 families and 63 genera.It is mainly composed of Fagaceae,Lauraceae,Rubiaceae,Camelliaceae,Rhodiaceae,and Garcinaceae;(2)the main tree species were Streblus in-dicus,H.chinensis,Lithocarpus glaber,Quercus griffithii,Engelhardtia roxburghiana,and Macaranga rosuliflora.The prime shrubs are Ardisia quinquegona,Rhododendron simsii,Macaranga henryi,and Blastus cochinchinensis;(3)the diversity index of the tree layer was greater than that of the shrub layer,and the diversity indices of plots 1 and 2 were greater than those of plots 3 and 4.In conclusion,the H.chinensis community has a rich species composition and a high diversity index,and human activity factors affect community diversity somehow.This study provides a scientific basis for wild H.chinensis population conservation,restoration,and biodiversity maintenance in this region.