Fig. 3

Predicted with ForCEEPS vs. observed diameter at breast height (DBH) for birch (a, c) and pine (b, d), in 2013 (open circles, with associated regression line in dashed grey), 2014 (grey circles, with associated regression line in plain grey), and 2015 (black circles, with associated regression line in dashed black), using diameter data of the ORPHEE experiment, in monospecific stands (a and b: total density 2500stems/ha) and mixed stands (c and d: total density 2500 stems/ha). The 1:1 line is represented by the red plain line. The number of observed trees each year was 56 for each species