关键词: 土壤动物, 垂直分布, 季节动态, 多样性, 生物量

Abstract: The density of meso microfauna is the higest in 5~10 cm soil layer and lower in 0~5 cm soil layer and middle in 10~15 cm layer. The density of macrofauna descendes rapidly when soil layer is going down. The seasonal dynamics of meso microfauna is the highest in spring, the lowest in summer and middle in autumn. The density of young macrofauna is the lowest in spring, the highest in summer and middle in autumn. The density of mature macrofauna is middle in spring, the lowest in summer and the highest in autumn. The seasonal dynamics of boimass is middle in spring, the highest in summer and the lowest in autumn. The diversity indexes of meso microfauna community is lower than that of macrofauna and the stability of macrofauna community is higher accordingly.

Key words: Soil animal, Vertical distribution, Seasonal dynamics, Community variety, Biomass