Figure 2: Soil organic C (a), Soil total N (b), Soil microbial biomass C (c), Soil microbial biomass N (d), Soil water soluble-organic C (e), and Soil water-soluble organic N (f) at BF, MF, and BLF in the April of 2005 and 2014.

Different uppercase letters indicate significant differences to the total pool size among forests in 2005 (p < 0.05); different lowercase letters indicate significant differences to the total pool size among forests in 2014; a plus and a minus sign indicate significant differences to the total pool size between 2005 and 2014 at the same forest.