Nitrogen content of soil 0.295501 Available water holding capacity of soil 0.382251 Precipitation during the driest quarter 0.519762 Sum of monthly Tavg where Tavg >=5 deg C 0.531126 Precipitation during the hottest quarter 0.544745 Temperature during the coldest quarter 0.569081 Precipitation during the wettest quarter 0.712951 Precipitation during the coldest quarter 0.952723 Compound topographic index (relative wetness) 0.96742 Solar interception 1.06402 Elevation 1.13932 Ratio of precipitation to potential evapotranspiration 1.33101 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.75745 Temperature during the hottest quarter 1.85552 Carbon content of soil 2.27638 Bulk density of soil 2.95205 Day/night diurnal temperature difference 8.25017