Predictor Importance Values for eastern redbud (Cercis canadensis)

Predictor Name	Importance Score	Rank
Annual precipitation (mm)	20.94	2
Mean May-September precipitation (mm)	20.88	3
Mean annual temperature (°C)	18.09	7
Mean May-September temperature (°C)	14.4	19
Mean temperature of coldest month (°C)	16.82	11
Mean temperature of warmest month (°C)	19.9	6
Annual aridity index	17.45	8
Minimum elevation	9.7	37
Maximum elevation	12.89	25
Average elevation	10.17	34
Median elevation	10.3	33
Range of elevation	15.93	16
Elevation coefficient ofvariation	8.69	40
Elevation standard deviation	13.84	22
Annual daylength coefficient of variation	20.39	4
Total available water capacity (cm, to 150 cm)	13.35	23
Total available water supply (cm, to 150 cm)	10.14	35
Depth to water table (cm)	13.96	21
Soil permeability rate (cm/hr)	16.36	13
Soil calcium carbonate (% by weight)	16.04	15
Soil cation-exchange capacity	11.02	30
Soil pH	11.87	26
Soil bulk density (g/cm3)	14.99	18
Organic matter content (% by weight)	16.1	14
Potential soil productivity	17.38	9
Soil erodibility factor, rock fragment free	16.69	12
Soil erosion by wind (tons/acre/year)	15.8	17
Percent soil passing sieve No. 10 (coarse)	11.63	27
Percent soil passing sieve No. 200 (fine)	13.09	24
Percent clay (< 0.002 mm size)	20.11	5
Percent sand (< 0.002 mm size)	14.03	20
Percent silt (< 0.002 mm size)	9.27	39
Percent of texture clayey	10.75	31
Percent of texture loamy	11.47	28
Percent of texture sandy	10.55	32
Percent of texture other	9.84	36
Alfisol (%)	17.02	10
Aridisol (%)	0	45
Entisol (%)	7.34	42
Histosol (%)	7.21	43
Inceptisol (%)	25.61	1
Mollisol (%)	9.59	38
Spodosol (%)	1.49	44
Ultisol (%)	11.24	29
Vertisol (%)	7.97	41