Study on Compositions and Geographical Elements of Vascular Plants in Castanopsis fabri Community,Daiyun Mountain Soil microbial community structure of two types of forests in the mid-subtropics of China. The Structure and Distribution Pattern of Dominant Populations in Castanopsis carlesii Community Nutrition Ecological Niche of Dominant Arbor Species in Castanopsis fabri Forest in Daiyun Mountain Features of Population Ecological Quantity Field of Castanopsis fabri Community in Jinggang Mountain