Ratio of precipitation to potential evapotranspiration 0.450138
Nitrogen content of soil 0.455524
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.509349
Compound topographic index (relative wetness) 0.574422
Elevation 0.597211
Precipitation during the hottest quarter 0.627578
Temperature during the hottest quarter 0.643712
Precipitation during the coldest quarter 0.768802
Precipitation during the driest quarter 0.789571
Precipitation during the wettest quarter 0.807315
Available water holding capacity of soil 0.838096
Sum of monthly Tavg where Tavg >=5 deg C 0.90495
Solar interception 0.930093
Carbon content of soil 1.12366
Bulk density of soil 1.33574
Day/night diurnal temperature difference 1.76764
Temperature during the coldest quarter 4.17542