Predictor Importance Values for river birch (Betula nigra)
Predictor Name |
Importance Score |
Rank |
Annual precipitation (mm) | 10.4 | 25 |
---|
Mean May-September precipitation (mm) | 14.59 | 12 |
---|
Mean annual temperature (°C) | 8.49 | 35 |
---|
Mean May-September temperature (°C) | 7.99 | 39 |
---|
Mean temperature of coldest month (°C) | 8.16 | 37 |
---|
Mean temperature of warmest month (°C) | 7.16 | 42 |
---|
Annual aridity index | 14.94 | 11 |
---|
Minimum elevation | 11.05 | 21 |
---|
Maximum elevation | 10.58 | 23 |
---|
Average elevation | 7.48 | 41 |
---|
Median elevation | 9.16 | 30 |
---|
Range of elevation | 4.16 | 44 |
---|
Elevation coefficient ofvariation | 15.18 | 10 |
---|
Elevation standard deviation | 8.38 | 36 |
---|
Annual daylength coefficient of variation | 12 | 18 |
---|
Total available water capacity (cm, to 150 cm) | 15.36 | 9 |
---|
Total available water supply (cm, to 150 cm) | 13.18 | 16 |
---|
Depth to water table (cm) | 19.19 | 1 |
---|
Soil permeability rate (cm/hr) | 16.73 | 6 |
---|
Soil calcium carbonate (% by weight) | 11.04 | 22 |
---|
Soil cation-exchange capacity | 10.35 | 26 |
---|
Soil pH | 17.79 | 4 |
---|
Soil bulk density (g/cm3) | 14.45 | 14 |
---|
Organic matter content (% by weight) | 14.39 | 15 |
---|
Potential soil productivity | 8.97 | 31 |
---|
Soil erodibility factor, rock fragment free | 15.48 | 8 |
---|
Soil erosion by wind (tons/acre/year) | 8.86 | 33 |
---|
Percent soil passing sieve No. 10 (coarse) | 8.1 | 38 |
---|
Percent soil passing sieve No. 200 (fine) | 14.52 | 13 |
---|
Percent clay (< 0.002 mm size) | 16.81 | 5 |
---|
Percent sand (< 0.002 mm size) | 17.94 | 3 |
---|
Percent silt (< 0.002 mm size) | 8.93 | 32 |
---|
Percent of texture clayey | 11.78 | 19 |
---|
Percent of texture loamy | 10.19 | 27 |
---|
Percent of texture sandy | 7.95 | 40 |
---|
Percent of texture other | 11.11 | 20 |
---|
Alfisol (%) | 10.55 | 24 |
---|
Aridisol (%) | 0 | 45 |
---|
Entisol (%) | 12.25 | 17 |
---|
Histosol (%) | 10 | 28 |
---|
Inceptisol (%) | 18.91 | 2 |
---|
Mollisol (%) | 15.77 | 7 |
---|
Spodosol (%) | 6.01 | 43 |
---|
Ultisol (%) | 8.5 | 34 |
---|
Vertisol (%) | 9.41 | 29 |