分析了梭梭种群的径级结构、高度结构、密度和空间分布格局变化等。
The diameter structure, the height structure, the density and the distribution pattern were worked out.
刺五加种群的高度结构与径级结构的变化都与群落环境以及本身的年龄结构特点有关。
The height structure and diameter structure of A. senticosus population relate with community environments and with its own age structure characteristics.
基于种群径级结构分析，木荷种群密度随个体胸径的变化趋势类似于偏正态分布形曲线。
Based on analysis of population size class structure, the trend of population density of Schima superba changing with individual DBH was similar to skew normal distribution.
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