Predictor Importance Values for Osage-orange (Maclura pomifera)

Predictor Name	Importance Score	Rank
Annual precipitation (mm)	20.8	5
Mean May-September precipitation (mm)	17.67	15
Mean annual temperature (°C)	12.67	35
Mean May-September temperature (°C)	17.49	18
Mean temperature of coldest month (°C)	12.34	36
Mean temperature of warmest month (°C)	17.23	20
Annual aridity index	15.22	27
Minimum elevation	19.22	8
Maximum elevation	20.99	4
Average elevation	17.57	17
Median elevation	15.23	26
Range of elevation	20.36	7
Elevation coefficient ofvariation	13.34	33
Elevation standard deviation	22.25	1
Annual daylength coefficient of variation	9.67	42
Total available water capacity (cm, to 150 cm)	14.26	31
Total available water supply (cm, to 150 cm)	17.62	16
Depth to water table (cm)	18.93	11
Soil permeability rate (cm/hr)	19.07	10
Soil calcium carbonate (% by weight)	16.38	22
Soil cation-exchange capacity	13.05	34
Soil pH	18.31	12
Soil bulk density (g/cm3)	17.35	19
Organic matter content (% by weight)	15.36	25
Potential soil productivity	18.01	13
Soil erodibility factor, rock fragment free	20.48	6
Soil erosion by wind (tons/acre/year)	19.1	9
Percent soil passing sieve No. 10 (coarse)	21.67	3
Percent soil passing sieve No. 200 (fine)	16.81	21
Percent clay (< 0.002 mm size)	17.71	14
Percent sand (< 0.002 mm size)	15.86	24
Percent silt (< 0.002 mm size)	14.37	30
Percent of texture clayey	10.28	40
Percent of texture loamy	15.14	28
Percent of texture sandy	16.32	23
Percent of texture other	14.95	29
Alfisol (%)	7.31	43
Aridisol (%)	1	45
Entisol (%)	13.57	32
Histosol (%)	10.77	39
Inceptisol (%)	10.12	41
Mollisol (%)	21.81	2
Spodosol (%)	1.79	44
Ultisol (%)	11.43	38
Vertisol (%)	11.91	37