Table 2. The description of fire age characteristics and soil properties of the study sitesa.
Age | Replicate | Soil textural classification | Tree species composition (%) | Age of the treesb | Year of last fire | Trees/ha | Soil pH (humus layer) | Soil temperature (growing season) (°C) | Soil gravimetric water content (%) | SoilN (g m−2) | SoilC (C g m−2) | TRootBiom (kg m−2) | Ergosterol (μg g−1SOM) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2y | 1 | Loamy sand | 92 Pi, 8 Bi | 35/40/258 | 2009 | 1550 | 4.0 (±0.08) | 11.3 (±0.0) | 34 (±3.2) | 53.988 (±14.87) | 1364.730 (±377.59) | 0.340 (±0.00) | 219.821 (±13.78) |
2 | Loamy sand | 95 Pi, 5 Bi | 21/52/143 | 2009 | 900 | 4.1 (±0.10) | 11.6 (±0.0) | 37 (±2.2) | 38.791 (±3.56) | 1596.566 (±93.29) | 0.301 (±0.007) | 217.972 (±7.24) | |
3 | Loamy sand | 96 Pi, 5 Bi | 25/42/144 | 2009 | 950 | 4.1 ( (±0.10) | 11.3 (±0.0) | 34 (±2.0) | 40.857 (±11.98) | 1531.788 (±104.87) | 0.223 (±0.00) | 222.433 (±2.36) | |
60y | 1 | Loamy sand | 95 Pi, 5 Bi | 43/61/155 | 1951 | 625 | 3.8 (±0.21) | 10.8 (±0.0) | 49 (±4.9) | 61.635 (±20.05) | 2227.050 (±286.91) | 0.236 (±0.00) | 279.935 (±28.88) |
2 | Loamy sand | 99 Pi, 1 Bi | 43/61/169 | 1951 | 1150 | 3.8 (±0.13) | 10.6 (±0.0) | 50 (±6.4) | 70.751 (±27.83) | 2518.135 (±99.71) | 0.260 (±0.04) | 265.077 (±31.20) | |
3 | Loamy sand | 97 Pi, 2 Bi | 43/60/170 | 1951 | 710 | 3.8 (±0.15) | 10.8 (±0.0) | 51 (±5.4) | 78.475 (±9.82) | 2092.943 (±294.64) | 0.307 (±0.00) | 255.367 (±6.55) | |
152y | 1 | Loamy sand | 96 Pi, 4 Bi | 104/150/272 | 1859 | 200 | 3.7 (±0.17) | 10.4 (±0.0) | 57 (±4.2) | 53.299 (±4.31) | 2252.368 (±42.69) | 0.292 (±0.00) | 268.976 (±18.47) |
2 | Loamy sand | 98Pi, 2 Bi | 84/150/341 | 1859 | 225 | 3.8 (±0.11) | 10.5 (±0.0) | 56 (±4.9) | 63.466 (±8.57) | 2670.151 (±66.80) | 0.318 (±0.05) | 276.662 (±13.86) | |
3 | Loamy sand | 98Pi, 2 Bi | 90/145/310 | 1859 | 211 | 3.7 (±0.14) | 10.4 (±0.0) | 57 (±4.5) | 62.396 (±3.57) | 2590.029 (±28.43) | 0.371 (±0.00) | 304.662 (±25.49) |
aAll the data were derived from Köster et al.33.
bRepresenting the age of youngest living tree/average age of the stand/oldest living tree on the study site. Pi — Scots pine, Bi — Birch.
Standard errors of the means are in parentheses (n = 3).