Sum of monthly Tavg where Tavg >=5 deg C 0.43288
Ratio of precipitation to potential evapotranspiration 0.486879
Compound topographic index (relative wetness) 0.560185
Nitrogen content of soil 0.633795
Bulk density of soil 0.64653
Available water holding capacity of soil 0.668926
Carbon content of soil 0.774696
Day/night diurnal temperature difference 0.78143
Precipitation during the wettest quarter 0.791604
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.813207
Precipitation during the coldest quarter 0.911597
Temperature during the coldest quarter 0.959314
Precipitation during the driest quarter 0.964958
Temperature during the hottest quarter 1.12921
Precipitation during the hottest quarter 1.34305
Solar interception 1.80589