| Table 2. Soil characteristics of the studied stands. C – organic carbon (%), N – Kjeldahl nitrogen (%), P – available (AL) phosphorus (mg kg–1), K 620 available (AL) potassium (mg kg–1), average concentrations are presented for the upper 10 cm soil layer (n = 5), World Reference Base for soil resources (WRB). | |||||||||||
| Study site | Soil type (WRB 2006) |
Peat layer depth (cm) |
Soil bulk density (0–10 cm) |
pH KCl |
N % |
C % |
P mg/kg |
K mg/kg |
N storage (t ha–1) |
C/N (0–10 cm) |
|
| 0–10 cm | 0–40 cm | ||||||||||
| Downy birch | Drainic Eutric Histosol | >100 | 0.20 | 4.8 ± 0.01 | 2.6 ± 0.03 | 39.4 ± 1.01 | 44.8 ± 1.93 | 159.0 ± 2.94 | 5.1 | 19.9 | 15.3 |
| Norway spruce | Drainic Eutric Histosol | =45 | 0.18 | 4.4 ± 0.01 | 2.7 ± 0.04 | 33.5 ± 0.9 | 49.0 ± 7.18 | 186.9 ± 17.34 | 4.9 | 21.5 | 12.3 |
| Scotch pine | Drainic Mesic Histosol | =45 | 0.14 | 2.6 ± 0.05 | 1.4 ± 0.04 | 39.8 ± 1.3 | 147.9 ± 15.9 | 370.4 ± 44.76 | 1.9 | 10.6 | 29.0 |