Table 3. Pearson correlation coefficients between soil properties and MBC, WSOC, and AOC.

	Latitude	MAT	MAP	WHC	clay	pH	OC	T-N	EC
MBC	−0.127	+0.127	+0.127	+0.756***	+0.643***	+0.162	+0.608***	+0.476***	+0.207
WSOC	+0.115	−0.115	+0.373*	+0.253	−0.011	+0.189	+0.172	+0.120	−0.488***
AOC	−0.164	+0.164	+0.389*	+0.357*	+0.244	+0.122	+0.191	+0.260	−0.064

MAT, mean annual temperature (°C); MAP, mean annual precipitation (mm); WHC, water holding capacity (%); OC, organic carbon (%); T-N, total nitrogen (%); EC, electrical conductivity salinity (dS m⁻¹); MBC, microbial biomass carbon (mg kg⁻¹); WSOC, water soluble organic carbon (mg kg⁻¹); AOC, assimilable organic carbon (mg kg⁻¹) “+” indicates a positive correlation, “−” indicates a negative correlation,

^*denotes significant at the 0.05 level,

^***denotes significant at the 0.001 level.