Precipitation during the driest quarter 0.411459
Sum of monthly Tavg where Tavg >=5 deg C 0.427349
Carbon content of soil 0.491936
Precipitation during the wettest quarter 0.584011
Precipitation during the hottest quarter 0.600895
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.652191
Nitrogen content of soil 0.705734
Precipitation during the coldest quarter 1.05265
Day/night diurnal temperature difference 1.14132
Compound topographic index (relative wetness) 1.30254
Bulk density of soil 1.40119
Available water holding capacity of soil 1.53696
Ratio of precipitation to potential evapotranspiration 1.58014
Temperature during the hottest quarter 2.14995
Solar interception 2.34234
Temperature during the coldest quarter 2.75039