Predictor Importance Values for water tupelo (Nyssa aquatica)

Predictor Name	Importance Score	Rank
Annual precipitation (mm)	12.43	21
Mean May-September precipitation (mm)	11.04	30
Mean annual temperature (°C)	10.81	32
Mean May-September temperature (°C)	6.61	41
Mean temperature of coldest month (°C)	11.66	24
Mean temperature of warmest month (°C)	15.54	7
Annual aridity index	15.79	5
Minimum elevation	11.65	25
Maximum elevation	9.89	38
Average elevation	11.47	27
Median elevation	11.36	28
Range of elevation	11.15	29
Elevation coefficient ofvariation	12.08	22
Elevation standard deviation	10.81	33
Annual daylength coefficient of variation	10.69	34
Total available water capacity (cm, to 150 cm)	9.62	40
Total available water supply (cm, to 150 cm)	10.09	37
Depth to water table (cm)	6.56	42
Soil permeability rate (cm/hr)	16.1	4
Soil calcium carbonate (% by weight)	11.69	23
Soil cation-exchange capacity	13.77	14
Soil pH	14.01	13
Soil bulk density (g/cm3)	14.74	9
Organic matter content (% by weight)	12.98	18
Potential soil productivity	16.57	3
Soil erodibility factor, rock fragment free	12.58	20
Soil erosion by wind (tons/acre/year)	10.18	36
Percent soil passing sieve No. 10 (coarse)	14.39	10
Percent soil passing sieve No. 200 (fine)	14.14	12
Percent clay (< 0.002 mm size)	21.86	1
Percent sand (< 0.002 mm size)	13.36	17
Percent silt (< 0.002 mm size)	14.38	11
Percent of texture clayey	11.47	26
Percent of texture loamy	15.66	6
Percent of texture sandy	12.78	19
Percent of texture other	13.39	16
Alfisol (%)	15.23	8
Aridisol (%)	0	45
Entisol (%)	9.88	39
Histosol (%)	10.82	31
Inceptisol (%)	16.73	2
Mollisol (%)	10.22	35
Spodosol (%)	6.54	43
Ultisol (%)	13.61	15
Vertisol (%)	6.19	44