Nitrogen content of soil 0.374427
Precipitation during the driest quarter 0.43369
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.522727
Ratio of precipitation to potential evapotranspiration 0.5811
Precipitation during the coldest quarter 0.585017
Precipitation during the wettest quarter 0.659377
Bulk density of soil 0.718465
Precipitation during the hottest quarter 0.781503
Compound topographic index (relative wetness) 0.881084
Solar interception 0.887452
Available water holding capacity of soil 0.93659
Sum of monthly Tavg where Tavg >=5 deg C 0.937032
Elevation 1.00928
Temperature during the coldest quarter 1.31281
Temperature during the hottest quarter 1.47971
Carbon content of soil 2.15185
Day/night diurnal temperature difference 6.95638