Study on Recovery of Castanopsis eyrei Community in Chebaling National Reserve

A study on recovery of Castanopsis eyrei community in Chebaling National Reserve based on data from 4 surveys on the permanent sampling plot was carried out from 1983 to 2003, and results were as follows. The species Castanopsis eyrei could contribute as high as 70% to community volume that could reach as high as 516 m^3/hm^2. In comparison, young trees of the species C. carlesii required the least radiation but mortality was the highest when they grew up, otherwise young trees of the species C. eyrei showed opposite state, and young trees of the species Schima superba hold the medium position between the two values of the two species. The trees blow 2 m grew the fastest and that above 10 m grew slower or mortality became higher rapidly. Percent of higher trees and utilization to higher room in the community ascended in the process of recovery. The 3 indexes density, richness and evenness indicated compatatively close affinities. The diversity index shows a descending tendency with comparatively robust fluctuation.