Soil nutrient characteristics of different land use manner at Taizishan of Hubei province

The soil nutrient contents under different previous land use, tree species and management conditions in Taizishan were analyzed in this paper. Results showed that the soil was acidic, most of the main mineral elements and organic materials were in good conditions. The contents of N(2.64 g/kg), K(171.65 mg/kg) and organic material(2.33%)were high, but the coefficient of the variation of K was large(105%), the contents of P(6.37 mg/kg) and Ca(196.84 mg/kg)were at extremely low levels. The contents of P and K were distinct among different land use soil. It showed that P and K of greenhouse soil were the highest, followed by farm land soil, while the field nursery soil was at lowest level. Most of the soil nutrients among different species nurseries and 18-25 year planted forests had no significant difference and there was the same result among each field nursery.