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在群落调查以及文献收集的基础上，对暖温带地区、暖温带和亚热带过渡地区、亚热带地区以及热带地区的典型地带性植被不同群落类型群落多样性进行了分析和研究，结果发现这４类地区物种多样性的变化具有一定的规律性，具体表现在热带地区（以统计平均值表示）群落乔木层的物种丰富度和多样性为最高，然后依次是亚热带地区、秦岭地区和东灵山地区；灌木层的物种丰富度和多样性则以亚热带地区为最高，其次是秦岭地区，热带地区的则仍高于东灵山地区，但这种变化明显没有乔木层那样显著；草本层的情形与乔木层几乎相反，以东灵山地区为最高，其次是秦岭地区的，以亚热带地区的为最低，而热带地区的仅高于亚热带地区的。这一系列的变化无不反映了环境因子的纬度变化特征。作者还分析了东灵山地区和秦岭地区群落物种多样性随海拔和群落类型的变化特征，但由于其它环境因子的干扰，没有发现明显的变化趋势。
On the basis of community investigation and literature collection, the diversity of different community types in the typical zonal vegetation community in warm temperate zone, warm temperate zone and subtropical transitional zone, subtropical zone and tropical zone was analyzed and studied. It was found that these four zones The change of species diversity has certain regularity, which is manifested in the highest species richness and diversity in the arbor layer of the tropical zone (represented by statistical average), followed by the subtropical zone, the Qinling Mountain and the Dongling Mountain, followed by the shrubs The species richness and diversity of the layers are highest in the subtropical regions, followed by the Qinling Mountains, while in the tropics are still higher than those in the Dongling Mountain region, but the change is obviously not as significant as that of the arborous layer; On the contrary, Dongling Mountain is the highest, followed by the Qinling Mountains, with the lowest in the subtropical regions, while the tropical regions are only higher than the subtropical regions. This series of changes all reflect the latitude variation of environmental factors. The author also analyzed the variation characteristics of community species diversity with the elevation and community types in Dongling Mountain and Qinling Mountains. However, no obvious trend was found due to the interference of other environmental factors.