Community Structure of Soil Animals in Man-Made Plant Communities in Dry Seasons in Xishuangbanna

soil animal communities were investigated in three different man-made plant communities in dry season (April),1991.Species composition,the number of individuals,the dominance,evenness,diversity and similarity coefficient of soil animal communities were analysed.The results showed that Acarina and Collembola were the dominants in the three plots.The character of vertical distribution of soil animals was that the individuals and spieces of soil animal on the ground are more than those in the soil.The rubber-tea community had the highest both in species and individual numbers.The secondary forest showed the highest diversity and evenness.The highest dominance occurred in the man-made community with multi-layer structure.The similarity coefficient between the soil animal communities in the man-made with multi-layer community and the secondary forest is the highest one.