Extended Data Figure 4 : Residuals of predicted minus observed tree mass.

From: Rate of tree carbon accumulation increases continuously with tree size

Extended Data Figure 4

a, The allometric equation for moist tropical forests34—used for the majority of tree species—shows no evident systematic bias in predicted aboveground dry mass, M, relative to trunk diameter (n = 1,504 trees). b, In contrast, our simplest form of allometric equation—used for 22% of our species and here applied to nine temperate species—shows an apparent bias towards overestimating M for large trees (n = 1,358 trees). c, New allometries that we created for the nine temperate species removed the apparent bias in predicted M.