TABLE 1.
Chemical properties of the bulk soil collected below each tree standa
| Parameter | Value for stand type |
||
|---|---|---|---|
| Beech | Coppice with standards | Corsican pine | |
| pH | 3.81 ± 0.01 C | 4.16 ± 0.06 B | 4.32 ± 0.02 A |
| C tot (g · kg−1) | 67.33 ± 0.83 A | 57.27 ± 1.79 B | 36.53 ± 1.61 C |
| N tot (g · kg−1) | 3.29 ± 0.07 A | 3.01 ± 0.06 B | 1.85 ± 0.04 C |
| C/N | 20.47 ± 0.27 A | 19.03 ± 0.19 B | 19.80 ± 0.46 AB |
| OM (g · kg−1) | 116.33 ± 1.45 A | 99.03 ± 3.03 B | 63.23 ± 2.78 C |
| P Duch. (g · kg−1) | 0.109 ± 0.001 B | 0.126 ± 0.002 A | 0.102 ± 0.001 B |
| P Ols. (g · kg−1) | 0.015 ± 0.001 A | 0.011 ± 0.000 B | 0.007 ± 0.000 C |
| CEC (cmol+ · kg−1) | 8.07 ± 0.19 A | 6.18 ± 0.3 B | 4.60 ± 0.39 C |
| H+ (cmol+ · kg−1) | 0.913 ± 0.009 A | 0.303 ± 0.033 B | 0.187 ± 0.023 C |
| Al (cmol+ · kg−1) | 6.09 ± 0.13 A | 5.70 ± 0.18 A | 4.42 ± 0.28 B |
| K (cmol+ · kg−1) | 0.223 ± 0.008 A | 0.209 ± 0.017 A | 0.096 ± 0.004 B |
| Ca (cmol+ · kg−1) | 0.537 ± 0.042 A | 0.198 ± 0.034 B | 0.101 ± 0.005 B |
| Mg (cmol+ · kg−1) | 0.197 ± 0.009 A | 0.139 ± 0.016 B | 0.078 ± 0.006 C |
| Na (cmol+ · kg−1) | 0.021 ± 0.001 A | 0.020 ± 0.002 A | 0.016 ± 0.000 A |
| Fe (cmol+ · kg−1) | 0.242 ± 0.006 A | 0.101 ± 0.015 B | 0.044 ± 0.006 C |
a
Each value is the mean of three replicates ± the standard error of the mean. One-factor ANOVA was carried out to compare the sampling sites. Different letters indicate significant differences (P < 0.05). Abbreviations: N tot, total nitrogen; C tot, total carbon; OM, organic matter; CEC, cationic exchange capacity; H+, protons; P. Duch., phosphorus extracted according to the Duchaufour method; P. Ols, phosphorus extracted according to the Olsen method.