Soil microbial biomass C (MBC; a and b) and microbial biomass N (MBN; c and d) among different litter input quantity treatments during incubation in the control and N fertilization microcosms.

<p>Values are means (<i>n</i> = 5) ± SE. <i>CL0</i> soil + 0 g litter from control plots, <i>CL1</i> soil + 1 g litter from control plots, <i>CL2</i> soil +2 g litter from control plots, <i>CL4</i> soil + 4 g litter from control plots, <i>NL0</i> soil + 0 g litter from N addition plots, <i>NL1</i> soil + 1 g litter from N addition plots, <i>NL2</i> soil + 2 g litter from N addition plots, <i>NL4</i> soil + 4 g litter from N addition plots. In the insets, the means of MBC or MBN among different litter input treatments during the whole incubation time in the control and N fertilization microcosms are shown (<i>n</i> = 7).