Predictors Importance for red maple

(in decreasing order of importance)

Predictor Name Importance Score Rank
Mean May-September precipitation (mm)34.631
Potential soil productivity (m3 of timber/ha)32.972
Mean difference between July and January Temperature (°C)29.633
Total available water capacity (cm, to 152 cm)29.444
Minimum elevation (m)26.535
Inceptisol (%)25.526
Soil slope (%) of a soil component24.537
Spodosol (%)23.718
Average elevation (m)22.869
Mollisol (%)22.3310
Mean July temperature (°C)22.1611
Organic matter content (% by weight)21.4112
Histosol (%)21.0613
Depth to bedrock (cm)20.5314
Range of elevation (m)19.5115
Percent soil passing sieve No. 200 (fine)19.2316
Soil pH18.7117
Entisol (%)17.6518
Percent soil passing sieve No. 10 (coarse)17.4219
Cropland (%)16.7320
Forest land (%)15.6821
Soil bulk density (g/cm3)15.0822
Elevation coefficient of variation14.7923
Nonforest land (%)14.4424
Soil erodibility factor, rock fragment free14.1625
Annual precipitation (mm)13.8826
Percent clay (< 0.002 mm size)13.8727
Ultisol (%)13.8228
Fragmentation Index (Riitters et al. 2002)13.329
Mean annual temperature (°C)12.9930
Mean January temperature (°C)12.9531
Maximum elevation (m)12.7232
Mean May-September temperature (°C)11.0933
Alfisol (%)10.0634
Soil permeability rate (cm/hr)9.8335
Water (%)7.3136
Vertisol (%)3.0537
Aridisol (%)038