Predictor Importance Values for black maple (Acer nigrum)
| Predictor Name |
Importance Score |
Rank |
| Annual precipitation (mm) | 5.01 | 38 |
|---|
| Mean May-September precipitation (mm) | 6.2 | 31 |
|---|
| Mean annual temperature (°C) | 9.06 | 11 |
|---|
| Mean May-September temperature (°C) | 7.75 | 23 |
|---|
| Mean temperature of coldest month (°C) | 9.1 | 10 |
|---|
| Mean temperature of warmest month (°C) | 8.58 | 15 |
|---|
| Annual aridity index | 6.14 | 32 |
|---|
| Minimum elevation | 9.73 | 6 |
|---|
| Maximum elevation | 8.94 | 12 |
|---|
| Average elevation | 9.66 | 7 |
|---|
| Median elevation | 10.42 | 3 |
|---|
| Range of elevation | 10.06 | 5 |
|---|
| Elevation coefficient ofvariation | 9.19 | 8 |
|---|
| Elevation standard deviation | 5.71 | 36 |
|---|
| Annual daylength coefficient of variation | 6.66 | 29 |
|---|
| Total available water capacity (cm, to 150 cm) | 8.24 | 19 |
|---|
| Total available water supply (cm, to 150 cm) | 4.73 | 39 |
|---|
| Depth to water table (cm) | 7.53 | 26 |
|---|
| Soil permeability rate (cm/hr) | 10.25 | 4 |
|---|
| Soil calcium carbonate (% by weight) | 10.67 | 2 |
|---|
| Soil cation-exchange capacity | 7.58 | 25 |
|---|
| Soil pH | 8.69 | 14 |
|---|
| Soil bulk density (g/cm3) | 7.96 | 22 |
|---|
| Organic matter content (% by weight) | 8.4 | 17 |
|---|
| Potential soil productivity | 8.16 | 20 |
|---|
| Soil erodibility factor, rock fragment free | 5.76 | 35 |
|---|
| Soil erosion by wind (tons/acre/year) | 9.1 | 9 |
|---|
| Percent soil passing sieve No. 10 (coarse) | 8.54 | 16 |
|---|
| Percent soil passing sieve No. 200 (fine) | 7.65 | 24 |
|---|
| Percent clay (< 0.002 mm size) | 5.88 | 34 |
|---|
| Percent sand (< 0.002 mm size) | 7.18 | 28 |
|---|
| Percent silt (< 0.002 mm size) | 7.5 | 27 |
|---|
| Percent of texture clayey | 8.75 | 13 |
|---|
| Percent of texture loamy | 4.39 | 40 |
|---|
| Percent of texture sandy | 5.23 | 37 |
|---|
| Percent of texture other | 3.79 | 42 |
|---|
| Alfisol (%) | 12.15 | 1 |
|---|
| Aridisol (%) | 0 | 45 |
|---|
| Entisol (%) | 4.06 | 41 |
|---|
| Histosol (%) | 6.03 | 33 |
|---|
| Inceptisol (%) | 8.04 | 21 |
|---|
| Mollisol (%) | 6.36 | 30 |
|---|
| Spodosol (%) | 3.21 | 43 |
|---|
| Ultisol (%) | 8.24 | 18 |
|---|
| Vertisol (%) | 1.37 | 44 |
|---|