Open Access
Table I
Soil mineralogical and textural properties (all expressed in %) at 0–5 cm and 5–15 cm in the soil profile of semi-natural oak and beech stands, and cultivated 40-year-old, 16-year-old and 3-year-old pine stands.
| Oak | Beech | 40 y Pine | 16 y Pine | 3 y Pine | |
|---|---|---|---|---|---|
| 0–5 cm | |||||
| Whole soil | |||||
| mineralogy | |||||
| Quartz | 47 | 48 | 42 | 49 | 47 |
| Phyllosillicates | 52 | 51 | 56 | 51 | 53 |
| Clay (< 2 μm) | |||||
| fraction | |||||
| mineralogy | |||||
| Illite | 30 | 29 | 34 | 44 | 33 |
| Chlorite | 4 | 2 | 5 | 5 | 4 |
| Kaolinite | 16 | 14 | 9 | 8 | 14 |
| I/V | 51 | 55 | 52 | 42 | 48 |
| Whole soil | |||||
| texture | |||||
| Clay | 33 | 29 | 38 | 28 | 32 |
| Silt | 39 | 40 | 40 | 37 | 30 |
| Sand | 27 | 32 | 22 | 35 | 38 |
| Clay | Clay | Clay | Clay | Clay | |
| loam | loam | loam | loam | loam | |
| 5–15 cm | |||||
| Whole soil | |||||
| mineralogy | |||||
| Quartz | 43 | 46 | 43 | 49 | 50 |
| Phyllosillicates | 55 | 51 | 54 | 48 | 49 |
| Clay (< 2 μm) | |||||
| fraction | |||||
| mineralogy | |||||
| Illite | 20 | 28 | 21 | 28 | 25 |
| Chlorite | 2 | t | 1 | 2 | t |
| Kaolinite | 16 | 13 | 13 | 10 | 13 |
| I/V | 62 | 60 | 64 | 60 | 61 |
| Whole soil | |||||
| texture | |||||
| Clay | 43 | 37 | 43 | 30 | 34 |
| Silt | 36 | 36 | 38 | 33 | 30 |
| Sand | 20 | 27 | 20 | 36 | 36 |
| Clay | Clay | Clay | Clay | Clay | |
| loam | loam | loam |