福建省牛姆林自然保护区常绿针阔叶混交林主要种群空间格局研究

Study on the spatial pattern of major populations in the needle and broad-leaved mixed evergreen forest in Niumulin Nature Reserve Zone of Fujian Province.

基于方差/均值比率法、x^2检验、集聚指数测度与检验、样方方差法等格局研究方法,对福建省牛姆林自然保护区常绿针阔叶混交林马尾松+拉氏栲(Pinus massonnina+Castanopsis lamontii)群落的7个主要乔木种群空间分布格局类型、格局规模与强度等特征研究结果显示,马尾松、拉氏栲、华南桂、木荷4个种群的格局属于随机分布格局;米椎、榄叶石栎和绒毛润楠3个种群的格局属于集聚分布格局,但其集聚强度均不高,依次为米椎>榄叶石栎>绒毛润楠,这3个集聚种群有可能成为该区未来群落的建群种。

Based on variance-mean ratio, x2-test,cluster-intensity coefficient,quadrat variance method,etc. ,the spatial pattern of major tree populations from Pinus massonina +Castanopsis lamontii community (needle and broad-leaved mixed evergreen forest) in Niumulin Nature Reserve Zone of Fujian Province was studied, showing that the populations of Pinus massonina , Castanopsis lamontii, Cinnamomum austros and Schima superba distribute randomly; the populations of Castanopsis carlesii, Lithocarpus oleaefolius and Machilus veltina have a pattern of clump distribution respectively. The analysis of pattern intensity indicates that the intensity of three clumped distribution population is lower. The comparison shows that the order of their intensities is Castanopsis carlesii population> Lithocarpus oleaefolius population> Machilus veltina population. In the research, there is a prediction that the populations of clumped distribution should be constructive populations of the community in the future.