Pleioblastus amarus community recovery from slash-and-burn Chinese fir through near-natural method

Species composition，importance value，diversity，density，and community biomass，P. amarus quantity and growth of P. amarus community at different ages were studied.P.amarus community near-naturally generating from Chinese fir cutting under slash-and-burn，and P. amarus community in near-maturity Chinese fir forest as well as in bush/forest community were used in the study and the fundamental factors of community formation and characteristics analyzed. The results show that Chinese fir forest，with a certain population of P. amarus can recover into viable vegetation through near-natural method， with P. amarus emerging as the dominant community in the course of recovery. Vascular plant species issues and species diversity indices of P. amarus community increases with community recovering time. Family and genus composition becomes more complex，and tree species composition changes from dominant masculine to dominant feminine plants. However，ecological dominance of the community declines，evenness index increases，and dominant species becomes increasingly unclear. P. amarus dominates the community，to a large degree，in the early stages of near-natural regeneration from slash-and-burn Chinese fir at a certain population of P. amarus. Certain artificial promotion measures must be used for the continuous dominance of P. amarus community and P. amarus must be managed by near-natural method.