atural Castanopsis fargesii forest in the subtropics belongs to a stable climax communi-ty.Distinct differences in chemical elements’content(CEC)among the layers, species andorgans of the community show the diversity of nutrition utilized by plants.Analyzation ofboth the CEC of main edificatos and the accumulation and distribution of nutrition in differ-ent layers and species of the community,the nutrient mechanism of community stability wasdiscovered.Total accumulation of five chemical elements.i.e.Nitroge...