. 2012 Apr;78(7):2328–2336. doi: 10.1128/AEM.06881-11

Table 2.

Amounts of [¹⁴C]SOC and [¹⁴C]MBC and synthesis rates of [¹⁴C]SOC in six cropland soils

Soil^a	Amt (mg kg⁻¹)^b		Synthesis rates of [¹⁴C]SOC (g C m⁻² day⁻¹)
Soil^a	[¹⁴C]SOC	[¹⁴C]MBC	Synthesis rates of [¹⁴C]SOC (g C m⁻² day⁻¹)
P1	46.41 ± 3.56 B	4.52 ± 0.27 C	0.074 ± 0.003
P2	64.61 ± 2.65 A	10.36 ± 1.46 A	0.103 ± 0.002
P3	60.99 ± 7.33 A	7.61 ± 0.42 B	0.097 ± 0.006
U1	21.94 ± 3.36 C	3.74 ± 0.38 C	0.035 ± 0.003
U2	26.36 ± 2.08 C	4.75 ± 0.57 C	0.042 ± 0.002
U3	8.44 ± 1.52 D	1.55 ± 0.23 D	0.013 ± 0.001

Soils are described in Table 1.

Means followed by the same letter are not significantly different (P > 0.05) between the different soils.