Fig. 7. Measured soil C/N ratios on an areal basis versus C/N ratios predicted from multiple regression models in the form of Eq. [1] with = 1, using (a) vegetation factors, (b) landscape factors, and (c) landscape factors and soil chemical properties as independent variables. Regression coefficients (a_i) shown for each independent variable (A_i) in order of decreasing importance to overall model. S = Southness; RS = red spruce basal area; EH = eastern hemlock basal area; StM = striped maple basal area; WA = white ash basal area (m² ha^-1); pH = mineral soil pH; * signifies p < 0.05; ** signifies p < 0.01; *** signifies p < 0.001.

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