Research on the nature reserve of Phoenix mountain in Chaoyang City of the Liaoning province, chosing four kinds of ecosystem types, which are Quercus liaotungensis forest, Pinus tabulaeformis forest, Ulmus macrocarpa forest and Tilia amurensis forest, and analyzed the nutrient content, Nutrients accumulation and Nutrient cycling efficiency of overground biomass, litter layer, soil layer and root layer. Used Geostatistics etc. Methods to analyze the spatial heterogeneity and distribution of the soil moistu...