Nutrient addition 第1页

Differential Responses of N:P Stoichiometry of Leymus chinensis and Carex korshinskyi to N Additions in a Steppe Ecosystem in Nei Mongol Response of Soil Enzyme Activity and Microbial Biomass Carbon and Nitrogen to the Nutrient Addition of Stipa Baicalensis Steppe in Inner Mongolia Effects of the addition of mineral nutrients on biological nitrogen fixation in forest ecosystems