Table 5 Radiocarbon data for the control and high severity plots. Values in parentheses represent the experimental standard error of 5 or 6 replicates.
|  | Depth | Fraction | n | δ13C (‰) | F14:C | Δ14C (‰) | MRT (yr) |
|---|---|---|---|---|---|---|---|
|  |  | Bulk soil | 6 | −25* | 1.082 (±0.007) | 75 (±7) |  |
|  | 0 cm to 5 cm | Light (no char) | 6 | −26.3 (±0.2) | 1.114 (±0.011) | 107 (±11) | 85 (±9) |
|  | Charcoal | 6 | −25.9 | 0.962 (±0.007) | −45 (±7) |  | |
Unburned control |  | Heavy | 5 | −24.2 (±0.2) | 1.076 (±0.009) | 69 (±9) | 137(±12) |
|  | Bulk soil | 6 | −25* | 1.052 (±0.006) | 45 (±6) |  | |
|  | 5 cm to 15 cm | Light (no char) | 5 | −26.1 (±0.2) | 1.078 (±0.013) | 71 (±13) | 135 (±19) |
|  | Charcoal | 6 | −25.6 | 0.917 (±0.023) | −88 (±22) |  | |
|  |  | Heavy | 6 | −24.2 (±0.2) | 1.020 (±0.012) | 13(±12) | 310 (±56) |
|  |  | Bulk soil | 6 | −25* | 1.057 (±0.009) | 50 (±9) |  |
|  | 0 cm to 5 cm | Light (no char) | 6 | −25.7 (±0.2) | 1.071 (±0.012) | 64 (±12) | 146 (±23) |
|  | Charcoal | 5 | −25.6 | 1.008 (±0.030) | 1 (±30) |  | |
High severity |  | Heavy | 6 | −24.2 (±0.2) | 1.042 (±0.007) | 35 (±7) | 192 (±19) |
|  | Bulk soil | 6 | −25* | 1.005 (±0.024) | −2 (±24) |  | |
|  | 5 cm to 15 cm | Light (no char) | 5 | −25.5 (±0.2) | 1.062 (±0.013) | 55 (±12) | 153 (±27) |
|  | Charcoal | 6 | −25.2 | 0.901 (±0.026) | −127 (±26) |  | |
|  |  | Heavy | 5 | −24.2 (±0.1) | 1.008 (±0.014) | 1 (±14) | 358 (±76) |