Precipitation during the coldest quarter 0.223734
Precipitation during the hottest quarter 0.258556
Nitrogen content of soil 0.393288
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.449073
Compound topographic index (relative wetness) 0.512374
Temperature during the hottest quarter 0.540457
Available water holding capacity of soil 0.547135
Precipitation during the driest quarter 0.622233
Elevation 0.639371
Ratio of precipitation to potential evapotranspiration 0.67409
Precipitation during the wettest quarter 0.758473
Carbon content of soil 0.857512
Solar interception 0.977895
Day/night diurnal temperature difference 1.00446
Sum of monthly Tavg where Tavg >=5 deg C 1.43848
Bulk density of soil 1.54745
Temperature during the coldest quarter 2.51673