Table 3. Means of mineral soil carbon storage ± one standard error across all land-use types and soil depths. Reported P-values and F-values were derived from individual ANOVAs performed for each soil depth. For each analysis, the numerator degrees of freedom were 2 and denominator degrees of freedom were 43. Different superscripted letters represent significant differences among categories, as determined by means separation.


Soil depth (cm) Pasture soil carbon (Mg/ha) Charral soil carbon (Mg/ha) Secondary forest soil carbon (Mg/ha) P-value F-value
0–10 43.00 ± 2.90a 34.65 ± 2.31b 35.70 ± 1.13b 0.012 4.91
10–20 18.71 ± 1.38a 25.00 ± 1.63b 20.65 ± 0.69c 0.0048 6.05
20–30 12.60 ± 0.65a 17.53 ± 1.63b 14.57 ± 0.73c 0.0167 4.51
Total: 0–30 74.32 ± 4.02 77.18 ± 4.46 70.92 ± 2.02 0.3659 1.03