COLUMN KEY FOR SOIL DATA Header: Description Plot_Name: Plot name indicating topographic position based on aspect (N = North, E = East, S = South) and elevation (U = Upper, M = Mid, L = Lower) Plot_No: Numerical plot ID; ranges from 1 to 80 Moist: Gravimetric soil moisture (%) Ca: Extractable calcium Mg: Extractable magnesium K: Extractable postassium H.ion: Hydrogen ion concentration Base: Base cation saturation (%) NH4: Plant available ammonium NO3: Plant available nitrate CEC: Cation exchange capacity Zn: Extractable zinc Mn: Extractable manganese P: Extractable phosphorus pH: Soil pH Notes: For 1980 methods see: Muller, R.N. 1982. Vegetation Patterns in the Mixed Mesophytic Forest of Eastern Kentucky. Ecology 63(6): 1901-1917. For 2001 methods see: McEwan, R.W., R.N. Muller, and B.C. McCarthy. 2005. Vegetation-Environment Relationships Among Woody Species in Four Canopy-Layers in an Old-Growth Mixed Mesophytic Forest. Castanea 70: 32-46.