soil enzyme activity 第3页

The Change of Undergrowth,Soil Microorganism, Enzyme Activity and Nutrient in Different Developing Stage of the Chinese Fir Plantation Effects of Nitrogen and Phosphorus Regulation on Alfalfa Nitrogen Accumulation and the Nitrogen and Phosphorus Nutrients of Soil Response of Soil Enzyme Activity and Microbial Biomass Carbon and Nitrogen to the Nutrient Addition of Stipa Baicalensis Steppe in Inner Mongolia Soil biological activity of abandoned saline fields with different restoration treatments