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采用聚集强度各指标对武夷山自然保护区天然次生杉阔混交林杉木与伴生树种的种群空间格局进行分析 .分析结果表明 :不同立木级杉木与伴生树种的种群空间分布基本呈聚集型分布 ,随着立木级增大 ,各种群扩散趋势越明显 .低立木级阶段引起聚集分布的原因主要是由环境作用引起的 ,在高立木级阶段是由环境作用或自身聚集性原因引起的
The results showed that the spatial distribution of different stands of Chinese fir and its associated species was aggregated, and with the increase of various indexes, the population spatial distribution of the Chinese fir and its accompanying tree species in the natural secondary fir-fir mixed forest in Wuyishan Nature Reserve was analyzed. Rising wood level increases, the more obvious the trend of diffusion of various groups.Low vertical wood stage caused by aggregation is mainly caused by the role of the environment, in the high wood stage is caused by environmental effects or their own aggregation