Abstract: Soil microbe is an important component of soil ecosystem,and its community diversity in different habitats is the hotspot of recent soil ecological study.This paper summarized the research advances in the effects of plant,soil,and soil management on the diversity of soil microbial community. Soil microbial community diversity varied with plant community diversity,plant species and genotypes,and plant growth stages and its root zone.The effects of soil on soil microbial community diversity were related to soil texture and its organic matter content.There was an interaction between soil and plant on the diversity of soil microbial community.Soil microbial community diversity was also strongly affected by soil management.Long-term monoculture and applying chemical fertilizers or pesticides decreased the diversity,while applying organic manure or non-tillage increased the diversity and was good for maintaining the functions of soil ecosystem.

Key words: Cd, Community structure, Simulating test, Diversity index