Species Structure and Diversity of Plant Community of Luhua Valley in Baiyun Mountain of Henan Province
Based on the community survey data at the fixed standard plot in Baiyun Mountain of Henan Province, this study was conducted on the plant community structure characteristics and species diversity at different levels. The results show that there are 22 species of plant, belonging to 21 genera in 16 families, in the Baiyun Mountain. The species in the arbor layer are relatively abundant, the main tree species is Quercus alina var. Acuteserrata; the main dominant species in the shrub layer are Forsythia suspensa and Rubus corchorifolius; and main species in the herb layer are Carex rigescens and Dryopteris sparsa. In the plant community the arbor layer species composition distribution in the number shows more small-diameter-class trees, fewer big-diameter-class trees and the mid-diameter-class trees in between; the community's forest stand can be known to be of more low-age trees and mid-age trees in the surveyed sample plot; and the tree species in the arbor layer are in the forest succession and at the young to full growth stage. The diversity index (J, D, H) of arbor layer in the plant community is significantly higher than that of the herb layer and the shrub layer, meaning that the community's diverse tree species resources are more abundant than the under-forest's; and the community evenness index (E) of the shrub layer is the highest, the distribution of the shrub layer can be known to be more uniform.
NETL
NSTL
万方数据
维普
