Fig. 2. Measured and predicted values of growth ring indices for American beech generated from final regression model (Ri = 0.873709 + 0.03Pi), where Ri is the predicted index for year i and Pi is the precipitation average.
Fig. 2. Measured and predicted values of growth ring indices for American beech generated from final regression model (Ri = 0.873709 + 0.03Pi), where Ri is the predicted index for year i and Pi is the precipitation average.