Precipitation during the hottest quarter 0.333632
Carbon content of soil 0.381981
Precipitation during the coldest quarter 0.588479
Precipitation during the driest quarter 0.656414
Nitrogen content of soil 0.734333
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.796949
Compound topographic index (relative wetness) 0.936035
Temperature during the hottest quarter 1.03865
Ratio of precipitation to potential evapotranspiration 1.04832
Day/night diurnal temperature difference 1.39709
Precipitation during the wettest quarter 1.46468
Temperature during the coldest quarter 2.01237
Sum of monthly Tavg where Tavg >=5 deg C 2.61908
Bulk density of soil 3.94196
Available water holding capacity of soil 4.03928
Solar interception 9.59312