Precipitation during the wettest quarter 0.000334
Nitrogen content of soil 0.652511
Precipitation during the hottest quarter 0.859572
Compound topographic index (relative wetness) 1.09614
Precipitation during the coldest quarter 1.12359
Precipitation during the driest quarter 1.16859
Elevation 1.64016
Solar interception 1.74215
Ratio of precipitation to potential evapotranspiration 1.90152
Bulk density of soil 2.10387
Sum of monthly Tavg where Tavg >=5 deg C 2.32367
Temperature during the hottest quarter 2.98862
Temperature during the coldest quarter 3.67939
Carbon content of soil 3.84298
Integer number of consecutive months where Tavg >= 5 deg C (Length of potential growing season) 4.12757
Available water holding capacity of soil 4.17953
Day/night diurnal temperature difference 5.55785