Nitrogen content of soil 1.08779
Sum of monthly Tavg where Tavg >=5 deg C 1.41777
Precipitation during the driest quarter 1.57207
Compound topographic index (relative wetness) 1.75306
Precipitation during the wettest quarter 2.02192
Available water holding capacity of soil 2.24634
Solar interception 2.43521
Ratio of precipitation to potential evapotranspiration 2.53536
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 3.02183
Elevation 3.35877
Temperature during the hottest quarter 3.8222
Precipitation during the hottest quarter 3.82856
Precipitation during the coldest quarter 3.86964
Temperature during the coldest quarter 3.94993
Carbon content of soil 4.83755
Bulk density of soil 5.27428
Day/night diurnal temperature difference 9.38244