Predictor Importance Values for shellbark hickory (Carya laciniosa)

Predictor Name Importance Score Rank
Annual precipitation (mm)12.233
Mean May-September precipitation (mm)11.158
Mean annual temperature (°C)7.234
Mean May-September temperature (°C)10.929
Mean temperature of coldest month (°C)9.4719
Mean temperature of warmest month (°C)10.9110
Annual aridity index10.1612
Minimum elevation7.6831
Maximum elevation8.7826
Average elevation9.6717
Median elevation6.8636
Range of elevation11.495
Elevation coefficient ofvariation14.531
Elevation standard deviation11.356
Annual daylength coefficient of variation13.722
Total available water capacity (cm, to 150 cm)9.5718
Total available water supply (cm, to 150 cm)5.5740
Depth to water table (cm)10.7411
Soil permeability rate (cm/hr)6.5437
Soil calcium carbonate (% by weight)11.774
Soil cation-exchange capacity7.3633
Soil pH11.37
Soil bulk density (g/cm3)8.4728
Organic matter content (% by weight)9.7314
Potential soil productivity8.1929
Soil erodibility factor, rock fragment free9.4420
Soil erosion by wind (tons/acre/year)9.716
Percent soil passing sieve No. 10 (coarse)6.0238
Percent soil passing sieve No. 200 (fine)8.7825
Percent clay (< 0.002 mm size)9.1522
Percent sand (< 0.002 mm size)7.7430
Percent silt (< 0.002 mm size)9.3521
Percent of texture clayey4.5543
Percent of texture loamy4.8242
Percent of texture sandy7.0235
Percent of texture other3.3544
Alfisol (%)7.3932
Aridisol (%)045
Entisol (%)5.141
Histosol (%)5.8539
Inceptisol (%)9.0324
Mollisol (%)10.0913
Spodosol (%)9.7215
Ultisol (%)9.0823
Vertisol (%)8.727