Table 3 Soil profile analyses
Profiles and horizons | pHw | pHKCl | Org. C (g kg−1) | Total N (g kg−1) | C:N | Sand 2–0.05 mm (g kg−1) | Silt 0.05–0.002 mm (g kg−1) | Clay < 0.002 mm (g kg−1) | Text. class | CEC (cmol(+) kg−1) | Exchangeable cations (cmol(+) kg−1) | BS (%) | Available P (g kg−1) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ca | Mg | Na | K | |||||||||||||
BV (Bosco Vacaressino) | ||||||||||||||||
 MF (mixed forest) | ||||||||||||||||
  A (0–3 cm) | 5.2 | 4.5 | 59 | 4.5 | 13.0 | 714 | 245 | 41 | SL | 17.9 | 11.57 | 1.62 | 0.08 | 0.36 | 76.1 | 9 |
  AB (3–27 cm) | 5.2 | 4.3 | 23 | 1.9 | 12.2 | 726 | 241 | 33 | SL | 10.1 | 3.48 | 0.52 | 0.05 | 0.13 | 41.6 | 2 |
  BC (27–60 cm) | 6.0 | 4.3 | 5 | 0.3 | 13.8 | 829 | 162 | 9 | LS | 5.1 | 2.90 | 0.53 | 0.12 | 0.08 | 70.9 | 1 |
 ROF (red oak forest) | ||||||||||||||||
  A (0–2 cm) | 3.8 | 3.1 | 91 | 4.7 | 19.4 | 694 | 180 | 126 | SL | 24.6 | 2.03 | 0.49 | 0.01 | 0.05 | 10.5 | 20 |
  AB (2–13 cm) | 4.3 | 3.6 | 22 | 1.5 | 15.0 | 657 | 311 | 32 | SL | 13.0 | 0.96 | 0.24 | 0.08 | 0.01 | 10.0 | 5 |
  Bw (13–33 cm) | 5.1 | 4.0 | 7 | 0.5 | 14.8 | 627 | 286 | 87 | SL | 4.6 | 1.06 | 0.27 | 0.07 | 0.02 | 31.0 | 3 |
  BC (33–60 cm) | 4.5 | 3.7 | 3 | 0.2 | 14.4 | 614 | 344 | 42 | SL | 2.8 | 0.95 | 0.24 | 0.06 | 0.02 | 45.4 | 1 |
BG (Bosco Ginestre) | ||||||||||||||||
 MF (mixed forest) | ||||||||||||||||
  A (0–9 cm) | 4.5 | 3.6 | 77 | 5.4 | 14.4 | 698 | 261 | 41 | SL | 21.9 | 5.27 | 1.37 | 0.12 | 0.18 | 31.7 | 17.2 |
  AC (9–20 cm) | 4.6 | 3.8 | 23 | 1.5 | 15.1 | 633 | 324 | 43 | SL | 10.9 | 1.30 | 0.49 | 0.30 | 0.13 | 20.4 | 4.7 |
  C1 (20–35 cm) | 4.6 | 4.0 | 8 | 0.6 | 14.1 | 697 | 236 | 67 | SL | 5.8 | 1.18 | 0.50 | 0.34 | 0.11 | 36.8 | 1.7 |
  C2 (35–77 cm) | 5.1 | 4.1 | 3 | 0.2 | 11.3 | 725 | 242 | 33 | SL | 3.7 | 1.46 | 0.88 | 0.36 | 0.13 | 75.9 | 1.1 |
  C3 (77–90 cm) | 5.8 | 4.6 | 1 | 0.1 | 10.0 | 986 | 14 | 0 | S | 1.9 | 1.06 | 0.48 | 0.28 | 0.07 | 97.4 | 0.6 |
 ROF (red oak forest) | ||||||||||||||||
  A (0–10 cm) | 4.6 | 3.9 | 29 | 1.8 | 15.6 | 705 | 264 | 31 | SL | 12.7 | 0.99 | 0.24 | 0.06 | 0.03 | 10.4 | 6.6 |
  AC (10–35 cm) | 4.4 | 4.1 | 26 | 1.6 | 16.1 | 641 | 334 | 25 | SL | 14.3 | 0.87 | 0.21 | 0.14 | 0.04 | 8.8 | 5.3 |
  C1 (35–50 cm) | 4.7 | 4.3 | 16 | 1.0 | 15.2 | 673 | 294 | 33 | SL | 3.9 | 0.90 | 0.43 | 0.12 | 0.02 | 38.1 | 2.6 |
  C2 (50–65 cm) | 5.1 | 4.7 | 2 | 0.1 | 18.2 | 972 | 28 | 0 | S | 1.1 | 0.52 | 0.28 | 0.14 | 0.02 | 86.5 | 1.0 |