Cation | Dryland (n = 30) | Forest (n = 103) | Orchard (n = 7) | Shrub&grass (n = 7) |
H+ | 0.21 ± 0.13a | 0.22 ± 0.12a | 0.18 ± 0.10a | 0.24 ± 0.15a |
Al3+ | 4.12 ± 1.59c | 4.41 ± 1.36c | 4.57 ± 1.00ab | 5.43 ± 1.23a |
Ca2+ | 0.30 ± 0.21b | 0.32 ± 0.22b | 0.52 ± 0.27a | 0.47 ± 0.18a |
Mg2+ | 0.15 ± 0.09a | 0.12 ± 0.08a | 0.15 ± 0.07a | 0.11 ± 0.10a |
K+ | 0.13 ± 0.08bc | 0.17 ± 0.09a | 0.21 ± 0.13a | 0.13 ± 0.10ab |
Na+ | 0.10 ± 0.07b | 0.08 ± 0.06b | 0.05 ± 0.03b | 0.15 ± 0.07a |
BSP (%) | 14.68 ± 7.09a | 13.80 ± 6.82a | 16.32 ± 2.78a | 13.59 ± 5.33a |