| Forest site and soil horizon (depth, cm) | pH CaCl2 | Sand | Silt & clay | BDa | SOC (silt & clay)b | SOC (sand)b |
| g・cm−3 | % | g・cm−3 | % | |||
| Mixed | ||||||
| FH (17 - 0) | 2.9 ± 0.1 | - | - | 0.14 ± 0.02 | - | - |
| Bf1 (0 - 10) | 4.2 ± 0.1 | 72 ± 3 | 28 ± 3 | 1.25 ± 0.07 | 57 ± 10 | 43 ± 10 |
| Bf2 (10 - 32) | 4.4 ± 0.1 | 76 ± 2 | 24 ± 2 | 1.35 ± 0.01 | 55 ± 6 | 45 ± 6 |
| BC (32 - 51) | 4.4 ± 0.1 | 77 ± 1 | 23 ± 1 | 1.41 ± 0.01 | 63 ± 5 | 37 ± 5 |
| Coniferous | ||||||
| FH (10 - 0) | 2.9 ± 0.1 | - | - | 0.20 ± 0.04 | - | - |
| Bf1 (0 - 10) | 3.6 ± 0.1 | 70 ± 1 | 30 ± 1 | 1.14 ± 0.02 | 58 ± 5 | 42 ± 5 |
| Bf2 (10 - 24) | 4.4 ± 0.1 | 79 ± 3 | 21 ± 3 | 1.36 ± 0.07 | 55 ± 5 | 46 ± 5 |
| BC (24 - 56) | 4.7 ± 0.1 | 87 ± 2 | 13 ± 2 | 1.49 ± 0.02 | 45 ± 5 | 55 ± 5 |
| Alder | ||||||
| Ah (0 - 12) | 4.1 ± 0.1 | 53 ± 6 | 47 ± 6 | 1.10 ± 0.02 | 55 ± 3 | 45 ± 3 |
| Bf1 (12 - 22) | 4.5 ± 0.1 | 57 ± 5 | 43 ± 5 | 1.42 ± 0.04 | 73 ± 3 | 27 ± 3 |
| Bf2 (22 - 35) | 4.7 ± 0.1 | 58 ± 6 | 41 ± 6 | 1.55 ± 0.05 | 70 ± 9 | 30 ± 9 |