Predictor Importance Values for pitch pine (Pinus rigida)

Predictor Name Importance Score Rank
Annual precipitation (mm)6.839
Mean May-September precipitation (mm)8.5429
Mean annual temperature (°C)12.67
Mean May-September temperature (°C)12.0310
Mean temperature of coldest month (°C)144
Mean temperature of warmest month (°C)14.283
Annual aridity index4.9143
Minimum elevation11.713
Maximum elevation7.2837
Average elevation7.6135
Median elevation12.448
Range of elevation11.1315
Elevation coefficient ofvariation12.289
Elevation standard deviation8.0731
Annual daylength coefficient of variation7.7832
Total available water capacity (cm, to 150 cm)10.6419
Total available water supply (cm, to 150 cm)8.6328
Depth to water table (cm)9.7424
Soil permeability rate (cm/hr)7.1838
Soil calcium carbonate (% by weight)8.7427
Soil cation-exchange capacity12.636
Soil pH19.651
Soil bulk density (g/cm3)11.116
Organic matter content (% by weight)5.8840
Potential soil productivity11.8312
Soil erodibility factor, rock fragment free9.923
Soil erosion by wind (tons/acre/year)13.165
Percent soil passing sieve No. 10 (coarse)11.8611
Percent soil passing sieve No. 200 (fine)11.6814
Percent clay (< 0.002 mm size)5.2942
Percent sand (< 0.002 mm size)10.1420
Percent silt (< 0.002 mm size)10.9617
Percent of texture clayey9.1526
Percent of texture loamy8.1230
Percent of texture sandy7.6934
Percent of texture other9.1525
Alfisol (%)10.1321
Aridisol (%)045
Entisol (%)5.7341
Histosol (%)3.9544
Inceptisol (%)10.1222
Mollisol (%)15.982
Spodosol (%)7.7333
Ultisol (%)10.6618
Vertisol (%)7.3436