中文摘要：

采用Weibull分布模型、对数正态分布模型、对数级数模型、分割线段模型、几何级数分布模型来拟舍珍稀植物南方红豆杉群落物种-多度分布格局，并用卡方临界值检验模型的拟合效果。结果表明：Weibull分布、对数正态分布、对数级数分布可用于描述南方红豆杉群落乔木层种一多度分布格局；而Weibull分布和对数正态分布适合于灌木层种-多度关系的描述。

英文摘要：

The species abundance pattern of Taxus chinensis var. mairei community was simulated by means of Weibull distribution model, lognormal distribution model, log-series distribution model, broken stick model and geometric series distribution model, and the simulation effect was verified by the critical values of chi-square tests. Result shows that the speciesabundance relationship of tree layer in a community can be well described by log-series distribution, lognormal distribution and Weibull distribution, while that of shrub layer can be well described by lognormal distribution and Weibull distribution.