Precipitation during the wettest quarter 0 Solar interception 0.101385 Precipitation during the driest quarter 0.16166 Carbon content of soil 0.26597 Nitrogen content of soil 0.354377 Precipitation during the hottest quarter 0.486404 Precipitation during the coldest quarter 0.790662 Bulk density of soil 0.823039 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 0.981393 Day/night diurnal temperature difference 1.22254 Temperature during the hottest quarter 1.39444 Compound topographic index (relative wetness) 1.79936 Sum of monthly Tavg where Tavg >=5 deg C 1.81629 Available water holding capacity of soil 1.94418 Ratio of precipitation to potential evapotranspiration 1.94686 Temperature during the coldest quarter 1.95088