The disorder of soil nutrient cycling is one of important cause of soil fertility decline.Soil microbial communities play an important role in soil nutrient cycling.Phosphorus is an important nutrient element for plant growth and development.Therefore,studying the microbial communities' evolution dynamic related to phosphorus cycling will help to clarify the microecological mechanism that the effect of successive-planting and rotation on soil phosphorus cycling in poplar plantation,and provide a theoretical...