Table 1.
Basic mineral soil (0–10 cm soil depth, means ± SE, n = 3) parameters from warmed and control subplots. Samples were obtained during the ninth year of soil warming. n.s. not significant
| Control | Warmed | t‐Test | |
|---|---|---|---|
| Water content (% fresh soil) | 48.3 ± 3.8 | 44.1 ± 2.5 | n.s. |
| Extractable organic C (μg C g−1 dw) | 123 ± 6.5 | 104 ± 6.8 | n.s. |
| Extractable N (μg N g−1 dw) | 29.8 ± 1.5 | 24.7 ± 1.86 | n.s. |
| Ammonium (μg N g−1 dw) | 2.17 ± 0.17 | 2.44 ± 0.37 | n.s. |
| Nitrate (μg N g−1 dw) | 4.44 ± 0.32 | 3.07 ± 0.51 | n.s. |
| Total free amino acids (μg N g−1 dw) | 2.31 ± 0.10 | 2.15 ± 0.13 | n.s. |
| Microbial C (μg C g−1 dw) | 847 ± 143 | 696 ± 25 | n.s. |
| Microbial N (μg N g−1 dw) | 182 ± 31 | 154 ± 5 | n.s. |