Table 4. Losses of native SOC without substrate amendment, and additional losses induced by cellulose or protein input, estimated for a growing-season of four months.
| Temperature (°C) | Loss of native SOC (% of SOC) | |||
|---|---|---|---|---|
| No substrate amendment | Additional SOC loss induced by cellulose | Additional SOC loss induced by protein | ||
| Organic topsoils | 8.0 | 2.23 ± 0.22 | + 0.00 ± 0.08 | + 0.89 ± 0.37 |
| Mineral topsoils | 7.5 | 1.65 ± 0.16 | + 0.26 ± 0.07 | + 0.55 ± 0.17 |
| Mineral subsoils | 4.5 | 1.33 ± 0.23 | + 0.27 ± 0.09 | + 1.13 ± 0.14 |
| Cryoturbated | 4.0 | 0.65 ± 0.09 | + 0.08 ± 0.04 | + 0.60 ± 0.09 |
| Permafrost | 1.0 | 2.67 ± 0.50 | + 0.58 ± 0.38 | + 1.09 ± 0.24 |
Values derived from the incubation at 15 °C were adjusted for typical growing-season soil temperatures using Q10 values.