| Soil attributes | PC1 | PC2 | PC3 | PC4 | Communalities |
| Eigen values | 4.49 | 2.81 | 1.76 | 0.71 |
|
| Variance (%) | 40.84 | 25.53 | 16.02 | 6.46 |
|
| CV (%) | 40.84 | 66.37 | 82.39 | 88.85 |
|
| Factor loadings (Rotated component matrix) |
| ||||
| Sand (%) | −0.11 | −0.56 | −0.09 | −0.01 | 0.34 |
| Silt (%) | −0.13 | 0.63 | −0.06 | 0.00 | 0.41 |
| Clay (%) | 0.37 | 0.30 | 0.25 | 0.01 | 0.31 |
| AWC (%) | 0.01 | 0.07 | −0.09 | −0.02 | 0.90 |
| BD (g/cm3) | 0.71 | −0.33 | 0.04 | −0.08 | 0.64 |
| SOC (%) | 0.11 | 0.02 | −0.05 | 0.59 | 0.36 |
| TN (%) | −0.03 | 0.03 | −0.04 | 0.66 | 0.44 |
| Av. K (mg∙kg−1) | −0.24 | −0.24 | 0.39 | 0.40 | 0.46 |
| Av. P (mg∙kg−1) | −0.45 | −0.17 | 0.09 | −0.18 | 0.31 |
| pH (1:2.5) | −0.14 | 0.01 | 0.68 | −0.14 | 0.50 |
| CEC (cmol(+)∙kg−1) | 0.18 | 0.07 | 0.54 | 0.02 | 0.33 |