Carbon content of soil 0.620487
Sum of monthly Tavg where Tavg >=5 deg C 0.649547
Nitrogen content of soil 0.77157
Ratio of precipitation to potential evapotranspiration 0.799008
Precipitation during the driest quarter 0.848925
Precipitation during the wettest quarter 0.872938
Precipitation during the coldest quarter 0.928705
Day/night diurnal temperature difference 1.21839
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.26733
Precipitation during the hottest quarter 1.30286
Compound topographic index (relative wetness) 1.34096
Bulk density of soil 1.87686
Available water holding capacity of soil 2.46643
Temperature during the hottest quarter 2.75421
Solar interception 4.45202
Temperature during the coldest quarter 5.36078