Structures of bacteria cloning communities in the soil environment and their ecological characteristics
土壤细菌类克隆群落及其结构的生态学特征

Some bacteria (eubacteria)cloning communities from different soil environments were obtained with a molecular method based on 16S rDNA analysis.The ecological characteristics of these cloning communities were analyzed.In the soil environments,bacteria species or strains are very abundant.The diversities are related to the vegetation,soil moisture and depth.There are the most abundant species and highest diversity in the surface soil environment,where no dominant gene pattern was observed.There are very few overlap gene patterns among bacteria communities from different soil environments.It shows that the structures of soil bacteria communities are complex.