Table 2.
Summary statistics of physicochemical and microbial soil characteristics across the investigated agricultural landscape (n = 186)
| Mean (SD) | Median | [min; max] | CV | |
|---|---|---|---|---|
| Soil bulk density (g·m3) | 1.1 (0.2) | 1.1 | [0.5; 1.5] | 14.0 |
| Clay (%) | 17.6 (2.5) | 17.2 | [13.5; 35.6] | 14.3 |
| Silt (%) | 65.1 (4.8) | 65.9 | [50.9; 74.4] | 7.3 |
| Sand (%) | 17.5 (4.2) | 16.7 | [7.7; 30.4] | 24.2 |
| Organic carbon (g/kg) | 27.6 (8) | 26.3 | [14.6; 72.3] | 28.9 |
| Total nitrogen (g/kg) | 2.4 (0.7) | 2.3 | [1.4; 6.2] | 28.1 |
| C/N | 11.2 (0.7) | 11.2 | [9.7; 12.7] | 6.1 |
| pH water | 6.0 (0.4) | 6.0 | [4.6; 7.4] | 7.5 |
| Available P (g/kg) | 0.6 (0.3) | 0.6 | [0.02; 1.9] | 50.8 |
| Total P (%) | 0.3 (0.07) | 0.3 | [0.1; 0.6] | 25.2 |
| Cu EDTA (mg/kg) | 4.9 (2.7) | 4.4 | [1.1; 14.3] | 54.2 |
| Fe (%) | 0.5 (0.1) | 0.5 | [0.1; 1.3] | 24.9 |
| Al (%) | 0.3 (0.08) | 0.3 | [0.1; 0.6] | 27.1 |
| Si (%) | 0.05 (0.01) | 0.04 | [0.01; 0.1] | 25.4 |
| Microbial biomass (μg DNA/g) | 59.2 (34.5) | 52.6 | [11.8; 251.7] | 58.3 |
| Bacterial richness | 760 (56) | 763 | [573; 884] | 7.0 |
| Bacterial evenness | 0.87 (0.01) | 0.87 | [0.802; 0.894] | 1.3 |
| Fungal richness | 476 (93) | 461 | [235; 742] | 20.0 |
| Fungal evenness | 0.66 (0.04) | 0.67 | [0.551; 0.749] | 5.8 |