Table 2.
BFs and knot locations.
| No. | Relationship |
|---|---|
| 1. | BF3 = max (0, CURV_TRF − 0.868835) × BF1; |
| 2. | BF14 = max (0, CURV_TRF − 0.567935); |
| 3. | BF27 = max (0, 0.852459 − TWI_TRF) × BF1; |
| 4. | BF28 = max (0, ASPECT_TRF − 0.539546) × BF15; |
| 5. | BF30 = max (0, STI_TRF − 0.5587) × BF24; |
| 6. | BF40 = max (0, PROFCUV_TRF − 0.36921) × BF6; |
| 7. | BF53 = max (0, PL_TRF − 0) × BF24; |
| 8. | BF108 = max (0, STI_TRF − 0) × BF15; |
| 9. | BF120 = max (0, CURV_TRF − 0) × BF18; |
| 10. | BF136 = max (0, CURV_TRF − 0.554817); |
| 11. | BF138 = max (0, CURV_TRF − 0.582064); |
| 12. | BF140 = max (0, ASPECT_TRF − 2.98023 × 10−8) × BF139; |
| 13. | BF146 = max (0, 0.977528 − SLOP_TRF) × BF138; |
| 14. | BF147 = max (0, PROFCUV_TRF − 0.188011) × BF24; |
| 15. | BF171 = max (0, STI_TRF − 0.0797712) |
Notes: PROFCUV (Profile curvature), CURV_(Total Curvature), SLOP_(Slope), PLAN_CURV_ (Plane Curvature), TWI (Topographic Wetness Index), STI (Stream Transportation Index), Roughness (Surface Roughness Index), ELEVA (Elevation), SCA (Stream Catchment Index) and TPI (Topographic Position Index).