[Structure and species diversity of community in Dawei Mountain of Hunan, China].

To provide a scientific basis for the conservation and exploitation of wild species in Dawei Mountain, we investigated the community characteristics and species diversity of species. The results showed that there were four communities, . , . , . and . , in Dawei Mountain. Phaenerophyte in the life form and pantropical elements in the local flora were both dominant. The shrub layer had higher species diversity than that of the arbor layer. Species diversity of those four communities was following the order of . , . , . and . . The community structure was relatively stable when young and mature individuals of predominated. The ground dia-meter class structure indicated that the . population was a growing population with a typical pyramid structure. The . community was mono-dominated by . , with . and . as the important companion species. Those three species would be replaced by other coniferous and broadleaved species due to the shortage of natural regeneration.