The overlying vegetation on soil can change surface soil environment

and affect some ecological factors for soil microbial living. The soil environment with plant activity is more suitable for soil microbial population. It’s better for microorganisms to reproduce and grow in the surface soil environment with overlying plants. Diversity is higher in surface soil with overlying plants than that in the soil environment without overlying plants or in the original subsurface soil not affected by vegetation. There is no dominant OTU population in the soil microbial community in the surface soil environment

and there are obvious dominant OTU populations in the subsurface soil environment. Vegetation can affect the activity of DNA from soil microbial community.