Fig. 1

Schematic comparison of (a) the DA and (b) the CA in determining plot-level tree variables for the same plot area, here depicted as a cross section in two dimensions. The plot size is represented by the bold black line at ground level. For the CA depiction, the vertical dashed lines mark the limits within which the variable is considered. The grey shaded areas represent the portions of the variable that need to be predicted and that constitute the predicted per-plot value under the two approaches