Summer microbial activity values, mean annual feeding rates, and litter decomposition rates after corn biochar additions to a temperate soil. BAS corresponds to the basal soil respiration expressed as mg CeCO2 g1 h1, MCB corresponds to the microbial biomass expressed as mg C g1, while the remainder values are expressed as percent; CMC corresponds to the carbon mineralization coefficient, expressed as mg CeCO2 g SOC1; qCO2 corresponds to the BAS to MCB ratio.