| CEC (meq/100g) | Ca (meq/100g) | Mg (meq/100g) | Na (meq/100g) | K (meq/100g) |
Adjacent control sites (ACS) | 6.11 ± 0.29 | 1.88 ± 0.15 | 1.33 ± 0.12 | 0.91 ± 0.04 | 1.20 ± 0.09 |
Charcoal kiln sites (CKS) | 8.56 ± 0.29 | 2.96 ± 0.17 | 2.51 ± 0.14 | 0.94 ± 0.04 | 1.20 ± 0.09 |
Relative change (%) | 40.11 | 57.15 | 89.16 | 3.30 | −0.29 |
p-value | <0.0001 | <0.0001 | <0.0001 | ns | ns |