Precipitation during the wettest quarter 0 Carbon content of soil 0.361548 Precipitation during the driest quarter 0.439396 Nitrogen content of soil 0.510979 Precipitation during the hottest quarter 0.572566 Ratio of precipitation to potential evapotranspiration 0.660405 Sum of monthly Tavg where Tavg >=5 deg C 0.71955 Bulk density of soil 0.783499 Available water holding capacity of soil 0.836028 Compound topographic index (relative wetness) 0.908195 Precipitation during the coldest quarter 0.924364 Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 1.15254 Solar interception 1.15751 Day/night diurnal temperature difference 1.25244 Temperature during the hottest quarter 1.27981 Temperature during the coldest quarter 2.2133