Predictor Importance Values for Nuttall oak (Quercus texana)

Predictor Name Importance Score Rank
Annual precipitation (mm)3.8341
Mean May-September precipitation (mm)3.4943
Mean annual temperature (°C)8.617
Mean May-September temperature (°C)7.0828
Mean temperature of coldest month (°C)9.7311
Mean temperature of warmest month (°C)8.716
Annual aridity index8.1424
Minimum elevation3.7942
Maximum elevation4.9139
Average elevation4.9238
Median elevation7.6626
Range of elevation5.736
Elevation coefficient ofvariation6.2534
Elevation standard deviation13.381
Annual daylength coefficient of variation8.4619
Total available water capacity (cm, to 150 cm)8.420
Total available water supply (cm, to 150 cm)9.4313
Depth to water table (cm)6.4133
Soil permeability rate (cm/hr)6.8130
Soil calcium carbonate (% by weight)8.2721
Soil cation-exchange capacity11.843
Soil pH9.0814
Soil bulk density (g/cm3)10.479
Organic matter content (% by weight)11.445
Potential soil productivity10.4310
Soil erodibility factor, rock fragment free11.017
Soil erosion by wind (tons/acre/year)6.1835
Percent soil passing sieve No. 10 (coarse)9.5312
Percent soil passing sieve No. 200 (fine)8.1823
Percent clay (< 0.002 mm size)6.4532
Percent sand (< 0.002 mm size)8.8515
Percent silt (< 0.002 mm size)10.978
Percent of texture clayey11.196
Percent of texture loamy5.6237
Percent of texture sandy8.1125
Percent of texture other6.7831
Alfisol (%)11.464
Aridisol (%)045
Entisol (%)7.4627
Histosol (%)4.0940
Inceptisol (%)12.782
Mollisol (%)6.8629
Spodosol (%)2.0644
Ultisol (%)8.1922
Vertisol (%)8.5118