Precipitation during the wettest quarter 0.087374
Precipitation during the driest quarter 0.169672
Solar interception 0.227767
Carbon content of soil 0.235983
Sum of monthly Tavg where Tavg >=5 deg C 0.31838
Nitrogen content of soil 0.401659
Precipitation during the coldest quarter 0.432997
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.548574
Precipitation during the hottest quarter 0.580041
Ratio of precipitation to potential evapotranspiration 0.621417
Bulk density of soil 0.803536
Compound topographic index (relative wetness) 0.860641
Day/night diurnal temperature difference 0.959779
Available water holding capacity of soil 1.18371
Temperature during the coldest quarter 1.25089
Temperature during the hottest quarter 1.80583