Table 4 Mean validation metrics across 100 bootstrap iterations.
From: CLSoilMaps: A national soil gridded database of physical and hydraulic soil properties for Chile
Soil Attribute | Model | Depth | RMSE | nRMSE | R2 | PBIAS |
|---|---|---|---|---|---|---|
Bulk Density | RF-U | 0–5 | 0.18 | 8.96 | 0.82 | 0.84 |
RF-U | 5–15 | 0.14 | 6.93 | 0.88 | −0.04 | |
RF-U | 15–30 | 0.15 | 7.79 | 0.86 | −0.81 | |
RF-U | 30–60 | 0.19 | 9.62 | 0.79 | −0.90 | |
RF-L | 60–100 | 0.19 | 10.13 | 0.78 | −0.89 | |
RF-L | 100–200 | 0.20 | 10.69 | 0.76 | 0.20 | |
Clay | RF-U | 0–5 | 7.23 | 11.74 | 0.68 | 2.75 |
RF-U | 5–15 | 6.11 | 9.95 | 0.76 | 2.97 | |
RF-L | 15–30 | 7.29 | 10.21 | 0.75 | 0.27 | |
RF-L | 30–60 | 9.29 | 12.05 | 0.72 | −7.17 | |
RF-L | 60–100 | 11.36 | 13.52 | 0.60 | −5.93 | |
RF-U | 100–200 | 12.99 | 15.70 | 0.50 | 3.90 | |
Sand | RF-U | 0–5 | 10.83 | 11.16 | 0.75 | 0.25 |
RF-U | 5–15 | 9.25 | 10.06 | 0.83 | 0.84 | |
RF-U | 15–30 | 9.16 | 9.78 | 0.83 | 0.04 | |
RF-U | 30–60 | 9.73 | 10.09 | 0.84 | 2.47 | |
RF-U | 60–100 | 13.78 | 13.89 | 0.67 | −0.03 | |
RF-U | 100–200 | 13.91 | 14.63 | 0.71 | −3.82 |
