关键词: 毛竹, 大球盖菇, 土壤动物, 群落结构

Abstract: To clarify the effect of planting Stropharia rugosoannulata in moso bamboo forest on the community characteristics of soil meso and micro-fauna, we carried out an experiment with four different planting years (0, 1, 2, and 3 a). The community composition and distribution of soil meso and micro-fauna were investigated by Tullgren method and Baermann method. A total of 89511 individuals of soil meso and micro-fauna were captured, belonging to 8 classes and 13 groups. With the increase of planting years, the group number and density of soil meso and micro-fauna increased first and then decreased, with the highest values in the treatment with planting 1 a (P<0.05). The group number and density of soil meso and micro-fauna decreased with soil depth, with a characteristic of surface accumulation. Shannon diversity index, Pielou evenness index, Margalef richness index and density-group index increased first and then decreased with increasing planting years, with highest values in the treatment with planting 1 a. However, Simpson dominance index decreased first and then increased with increasing planting years, being significantly lower in the treatment with planting 1 a than in other treatments (P<0.05). The similarity indices between 0 a and 3 a and that between 2 a and 3 a were medium, and the similarity indices among other treatments were very high. In conclusion, the community structure of soil meso and micro-fauna in moso bamboo forest was significantly affected by planting S. rugosoannulata. There were higher group number, density and diversity of soil meso and micro-fauna in the treatment with planting 1 a. With the extension of planting years, the density of soil meso and micro-fauna gradually returned to the level before planting, but with changes in community composition.

Key words: Phyllostachys edulis, Stropharia rugosoannulata, soil fauna, community structure.