Predictor Importance Values for American hornbeam; musclewood (Carpinus caroliniana)

Predictor Name	Importance Score	Rank
Annual precipitation (mm)	16.23	29
Mean May-September precipitation (mm)	20.64	16
Mean annual temperature (°C)	9.38	40
Mean May-September temperature (°C)	14.8	32
Mean temperature of coldest month (°C)	10.3	39
Mean temperature of warmest month (°C)	16.89	26
Annual aridity index	17.98	21
Minimum elevation	13.41	36
Maximum elevation	20.18	17
Average elevation	16.88	27
Median elevation	17.84	23
Range of elevation	24.26	7
Elevation coefficient ofvariation	18.49	20
Elevation standard deviation	14.38	34
Annual daylength coefficient of variation	20.01	18
Total available water capacity (cm, to 150 cm)	24.38	6
Total available water supply (cm, to 150 cm)	24.91	3
Depth to water table (cm)	15.34	31
Soil permeability rate (cm/hr)	28.29	1
Soil calcium carbonate (% by weight)	21.47	13
Soil cation-exchange capacity	24.08	8
Soil pH	23.6	10
Soil bulk density (g/cm3)	21.96	12
Organic matter content (% by weight)	20.81	15
Potential soil productivity	18.93	19
Soil erodibility factor, rock fragment free	24.42	5
Soil erosion by wind (tons/acre/year)	16.77	28
Percent soil passing sieve No. 10 (coarse)	17.29	25
Percent soil passing sieve No. 200 (fine)	21.05	14
Percent clay (< 0.002 mm size)	25.97	2
Percent sand (< 0.002 mm size)	17.94	22
Percent silt (< 0.002 mm size)	24.82	4
Percent of texture clayey	23.63	9
Percent of texture loamy	8.02	43
Percent of texture sandy	8.37	42
Percent of texture other	15.66	30
Alfisol (%)	14.11	35
Aridisol (%)	0.03	45
Entisol (%)	7.19	44
Histosol (%)	14.65	33
Inceptisol (%)	12.89	37
Mollisol (%)	17.57	24
Spodosol (%)	8.38	41
Ultisol (%)	23.42	11
Vertisol (%)	11.95	38