Sum of monthly Tavg where Tavg >=5 deg C 0.856137
Nitrogen content of soil 0.961555
Carbon content of soil 1.11148
Precipitation during the driest quarter 1.22094
Bulk density of soil 1.24938
Day/night diurnal temperature difference 1.28845
Precipitation during the wettest quarter 1.29694
Precipitation during the coldest quarter 1.44961
Precipitation during the hottest quarter 1.53466
Ratio of precipitation to potential evapotranspiration 1.59272
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.62193
Compound topographic index (relative wetness) 1.93408
Solar interception 2.0375
Available water holding capacity of soil 2.4652
Temperature during the hottest quarter 2.68329
Temperature during the coldest quarter 5.19172