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以鼎湖山为代表,研究南亚热带常绿阔叶林土壤动物群落的多样性。首先比较了几种多样性测度的效果,由于Gower系数和作者1990年提出的DG指数都是基于各物种在群落中都有同等独立性,宜在不同群落间进行同种类比较的假设,因而对于复杂的土壤动物群落多样性测度可以获得比较贴切的结果。但DG指数可以为多个群落同时比较,计算也简单。其次比较了中亚热带的资料,表明南亚热带土壤动物具有的多样性和更多的热带成分,两地区的群落组成有巨大的差异。最后比较了森林在受不同程度保护下土壤动物群落的组成,表明保护越好,群落的多样性越大,但在顶极的森林群落中,土壤动物群落的多样性也会变小。
With Dinghushan as the representative, the diversity of soil animal community in the subtropical evergreen broad-leaved forest was studied. First, we compared the effects of several species diversity measures. Since both the Gower coefficient and the DG index proposed by the author in 1990 are based on the assumption that each species is equally independent in the community, it is appropriate to make the hypothesis that the same species should be compared among different communities. Therefore, Complex soil fauna community diversity measures can get more appropriate results. However, the DG index can be compared simultaneously for multiple communities and the calculation is simple. Secondly, the data of the Central Asia subtropical zone are compared to show that the diversity of the subtropical soil fauna and the more tropical elements make a huge difference in community composition. Finally, the composition of soil fauna under different degrees of protection was compared. The results showed that the better the conservation, the greater the diversity of the community, but the diversity of soil fauna in the top forest community also decreased.