Table 2.
Out-of-bag (OOB) error estimates for landscape-scale models incorporating concentric ring analysis of land-use factors and a global model combining local with landscape-scale (100 m) factors for predicting classification of four pond types
| Model | Formula | Important variables (MDA >0) | OOB (%) |
|---|---|---|---|
| Landscape 50 m | ~IS + IG + Scrub + Tree | Scrub (5.88), Tree (5.18), IS (5.07) | 66.7 |
| 100 m | IS (9.80), Scrub (4.08), Tree (3.10) | 53.3 | |
| 250 m | IS (9.97), Scrub (8.09), IG (0.05) | 63.3 | |
| 500 m | IS (9.78), Scrub (6.30), Tree (4.10), IG (2.62) | 63.3 | |
| 1000 m | n/a | 86.7 | |
| 2500 m | Tree (5.09), Scrub (3.56), IS (3.37) | 63.3 | |
| Global | ~Pond.500 m + IS.100 m + Scrub.100 m + Concrete + Shading + Fringing + Floating + Mphyte + WLFI + K + NH4 + Chl-a | Mphyte (6.45), IS.100 m (4.10), Shading (3.82), K (2.70), Floating (2.51), Scrub.100 m (1.93), Concrete (1.58), Pond.500 m (1.33) Chl-a (1.33), NH4 (0.61), Fringing (0.37), WLFI (0.32) | 36.7 |
IS impermeable surface, IG improved grassland, Scrub vegetation between 0 and 3 m, Tree Tree canopy cover (over 3 m)