Property weights for RUSI, weighted RUSI (RUSIw), and organic weighted RUSI (RUSIow) models. Precipitation (PPT), growing degree days (GDD), exposure (EXP), traffic (TRA), infrastructure (INF), surface (SUR), estimated rooting area (ERA), penetration (PEN), A-horizon (HOR), texture (TEX), structure (STR), wet aggregate stability (WAS), soil organic matter (SOM), electrical conductivity (EC), pH, and Solvita® (Solvita, Woodsend Laboratories, Augusta, ME, USA) soil respiration (SOLV).
| Property | RUSI | RUSIw | RUSIow |
|---|---|---|---|
| PPT | 0.066 | 0.000 | 0.000 |
| GDD | 0.066 | 0.000 | 0.000 |
| EXP | 0.066 | 0.043 | 0.038 |
| TRA | 0.066 | 0.043 | 0.038 |
| INF | 0.066 | 0.043 | 0.038 |
| SUR | 0.066 | 0.087 | 0.077 |
| ERA | 0.066 | 0.087 | 0.077 |
| PEN | 0.066 | 0.087 | 0.077 |
| HOR | 0.066 | 0.130 | 0.115 |
| TEX | 0.066 | 0.130 | 0.115 |
| STR | 0.066 | 0.130 | 0.115 |
| WAS | 0.066 | 0.087 | 0.077 |
| SOM | 0.066 | 0.043 | 0.038 |
| EC | 0.066 | 0.043 | 0.038 |
| pH | 0.066 | 0.043 | 0.038 |
| SOLV | n/a | n/a | 0.115 |
| Total | 1.00 | 1.00 | 1.00 |