Table 4 Mean values of selected soil properties according to the level of soil burn severity in each burned area affected by crown fire in Spain, in 2018 and 2019. The values of adjacent unburned controls are also presented. The levels of fire severity varied from low (Level 2) to extreme (Level 6) following the classification by Fernández and Vega (2016). Standard error in parentheses
Wildfire | Soil burn severity level | Saturated hydraulic conductivity (mm h−1) | Weight diameter of soil aggregates (mm) | Soil organic carbon content (%) |
|---|---|---|---|---|
Nerva | Unburned control | 3.2 (1.6) | 0.94 (0.01) | 7.3 (0.1) |
Level 2 | 1.5 (0.4) | 0.85 (0.04) | 4.9 (0.2) | |
Level 3 | 1.0 (0.3) | 0.83 (0.10) | 3.8 (0.1) | |
Level 4 | 6.1 (3.1) | 0.66 (0.03) | 1.9 (0.3) | |
Level 5 | 13.5 (2.2) | 0.61 (0.02) | 1.8 (0.1) | |
Level 6 | 31.1 (0.9) | 0.60 (0.01) | 1.8 (0.1) | |
Gavilanes | Unburned control | 3.5 (0.1) | 1.04 (0.06) | 7.6 (0.7) |
Level 2 | 3.2 (0.3) | 1.10 (0.10) | 5.7 (0.1) | |
Level 3 | 2.7 (0.2) | 0.76 (0.05) | 4.0 (0.4) | |
Level 4 | 10.4 (1.3) | 0.64 (0.01) | 2.8 (0.3) | |
Level 5 | 14.0 (1.4) | 0.61 (0.01) | 1.3 (0.1) | |
Level 6 | 27.1 (6.2) | 0.57 (0.01) | 1.1 (0.1) | |
La Granja | Unburned control | 2.8 (1.2) | 1.34 (0.07) | 10.8 (0.9) |
Level 2 | 1.8 (0.9) | 0.71 (0.09) | 8.3 (0.1) | |
Level 3 | 1.7 (0.8) | 0.66 (0.01) | 7.9 (0.1) | |
Level 4 | 27.5 (5.4) | 0.63 (0.01) | 4.2 (0.1) | |
Level 5 | 51.1 (25.2) | 0.59 (0.01) | 3.0 (0.4) | |
Level 6 | 58.9 (12.6) | 0.57 (0.03) | 1.4 (0.2) |