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本文应用几何级数分布、分割线段、对数级数分布和对数正态分布等4种模型研究了南岳上封寺森林群落植物物种相对多度的分布格局。结果表明,几何级数分布模型适宜拟合乔木层和草本层,而不适宜于灌木层;分割线段模型适宜于乔木层,其中,多度一频度模型还适于草本层;对数级数分布模型完全适宜于拟合任何层次;对数正态分布模型仅适宜于拟合乔木层。此外,α-指数值介于季雨林-稀树草原之间。
In this paper, the distribution pattern of relative abundance of plant species in Shangfusi forest community in Nanyue County was studied by using four models, geometric series distribution, segmentation line segments, log series distribution and lognormal distribution. The results show that the geometric series distribution model is suitable for fitting arbor and herb layers, but not suitable for shrub layer. The segmentation line model is suitable for the arbor layer, in which the multi-degree and one-frequency model is also suitable for the herb layer; logarithmic series The distribution model is perfectly suitable for fitting any level; the lognormal distribution model is only suitable for fitting the arbor layer. In addition, α-index values range between the monsoon forest - savannah.