Biomass is estimated from tree diameter, height, and wood density data (when available) using the best available allometric equations. In the tropics, calculations rely on standard allometric equations (e.g., Chave et al., 2005). In the temperate and boreal regions, species- and even site-specific allometric equations are sometimes available (e.g., Yosemite; Lutz et al., 2012), and generic allometries (e.g., Jenkins et al., 2003) are used when these are not available.
Aboveground biomass (AGB) based on general allometric equations (currently Chave et al., 2005) can be calculated using the CTFS R package.
