Carbon content of soil 0.300717
Precipitation during the driest quarter 0.398316
Ratio of precipitation to potential evapotranspiration 0.424061
Sum of monthly Tavg where Tavg >=5 deg C 0.521779
Precipitation during the wettest quarter 0.611592
Available water holding capacity of soil 0.667068
Precipitation during the coldest quarter 0.667159
Nitrogen content of soil 0.799829
Temperature during the hottest quarter 0.8423
Compound topographic index (relative wetness) 0.990013
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.00882
Precipitation during the hottest quarter 1.03426
Day/night diurnal temperature difference 1.18565
Bulk density of soil 1.77851
Temperature during the coldest quarter 1.95187
Solar interception 4.82473