One
comparison between model estimation and real observation on tree aboveground
biomass and its part was done related to four tropical trees grow in the Philippines and
shown in the figure below. Total aboveground tree biomass as calculated with
the allometric equations from FBA model, fits well with the biomass
measurements obtained from destructive methods (A). Slight differences were
found for tree components: wood (B) and leave biomass (C) for all four tree
spices. Statistical test analysis also confirms the viability of the FBA model
for all tree species. Indeed, all test performed on FBA results indicated that
the model is applicable and provides an acceptable approximation for total
aboveground biomass estimation as well as for the tree components (wood and
leaf).

Comparison between FBA estimation and direct harvest
biomass values for four tropical tree species in the Philippines (Martin, 2008): A. tree
aboveground biomass (kg), B. wood biomass (kg) and C. leaves biomass (kg).

fba1