Linking soil organic carbon mineralization to soil physicochemical properties and bacterial alpha diversity at different depths following land use changes

Ecological Processes

Table 2 Kinetic parameters of organic carbon mineralization in the topsoil and subsoil under different land use patterns

	C₀ (mg·kg⁻¹)	C₀/SOC (%)	K (d⁻¹)	R²
0–20 cm
G	130.65 ± 6.00	2.58	0.0399 ± 0.0039	0.977**
W	122.82 ± 9.35	4.24	0.0363 ± 0.0057	0.955**
M	148.04 ± 15.28	1.55	0.0345 ± 0.0071	0.931**
GW	118.46 ± 8.23	0.98	0.0375 ± 0.0054	0.959**
GM	136.58 ± 10.70	1.61	0.0339 ± 0.0052	0.959**
20–40 cm
G	80.83 ± 1.69	3.11	0.0609 ± 0.0035	0.986**
W	72.89 ± 2.60	2.00	0.0599 ± 0.0058	0.964**
M	67.28 ± 2.50	2.04	0.0545 ± 0.0052	0.968**
GW	62.70 ± 1.98	1.51	0.0628 ± 0.0055	0.968**
GM	68.23 ± 2.31	3.17	0.0544 ± 0.0048	0.973**

The k is the mineralization rate constant; C₀ is the potentially mineralizable organic carbon content in the soil; and C₀/SOC is the proportion of potentially mineralizable organic carbon to total organic carbon