Table 1 Baseline climatic and physical characteristics.
From: Hydrological legacy determines the type of enzyme inhibition in a peatlands chronosequence
Eroded gully (EG) | Ditch-blocked<2 years (DB2) | Ditch-blocked<7 years (DB7) | Wet pristine (WP) | |
|---|---|---|---|---|
Location name | Blackburn Head | Glendue Fell | Haltonlea Fell | Midgeholme Fell |
Sampling date | 12/05/10 | 14/04/10 | 21/04/10 | 18/05/10 |
Coordinates | N 54 54.429 W 002 35.261 | N 54 52.371 W 002 36.231 | N 54 54.265 W 002 32.513 | N 54 54.566 W 002 34.404 |
Air temperature (°C) | 7.8 (1.09) | 8.9 (0.79) | 11 (1.20) | 13 (1.30) |
Peat temperature (°C) | ||||
- Surface | 5.4 (0.14) | 4.6 (0.06) | 5.2 (0.07) | 6.6 (0.08) |
- Deep | 5.8 (0.03) | 4.7 (0.05) | 5.3 (0.02) | 5.9 (0.06) |
Gravimetric water content (g H2O g−1 peat) | ||||
- Surface | 7.38 (0.741)1a | 7.84 (0.212) | 10.48 (0.758)2 | 10.54 (0.409)2 |
- Deep | 10.92 (0.280)b | 7.88 (0.632) | 9.87 (0.828) | 8.72 (0.584) |
pH | ||||
- Surface | 3.8 (0.02) | 3.9 (0.04) | 4.0 (0.03) | 3.7 (0.08) |
- Deep | 3.8 (0.02) | 3.9 (0.04) | 4.0 (0.03) | 3.9 (0.01) |
Bulk density (g cm3) | ||||
- Surface | 0.11 (0.013) | 0.11 (0.004) | 0.08 (0.004) | 0.08 (0.004) |
- Deep | 0.09 (0.003) | 0.12 (0.014) | 0.09 (0.007) | 0.10 (0.010) |
SOM (% LOI) | ||||
- Surface | 96.3 (0.260)1a | 96.4 (0.368)1a | 97.4 (0.244)a | 97.8 (0.250)2 |
- Deep | 98.7 (0.046)b | 98.2 (0.127)b | 98.5 (0.183)b | 98.6 (0.127) |
E4/E6 | ||||
- Surface | 6.16 (0.250)1a | 6.52 (0.522)1a | 4.21 (0.348)2 | 6.49 (0.263)1a |
- Deep | 3.78 (0.122)b | 4.72 (0.108)b | 3.84 (0.172) | 4.42 (0.078)b |
Humification (Abs 540 nm) | ||||
- Surface | 0.18 (0.030)a | 0.19 (0.040) | 0.16 (0.018)a | 0.14 (0.016)a |
- Deep | 0.31 (0.021)b | 0.22 (0.022) | 0.29 (0.012)b | 0.29 (0.019)b |
