Fig. A.1. Aboveground carbon (C) stock estimates at the tree level for six boreal tree species. Open and closed circles represent C stocks calculated by our C concentration data
and 50%, respectively. Regression relating DBH to total tree C stock was constructed and used to estimate species-level tree C stocks. Short dashed lines and solid lines
represent the relationship between DBH and aboveground C stocks calculated by our C concentration data and the standard assumed 50%, respectively. We estimated tree
biomass based on species-specific allometric equations developed in Canada (Lambert et al., 2005). Carbon concentration of stemwood was also used for tree branches
(Martin et al., 2015). Carbon concentration of foliage was measured in 2013 by a previous study in the same area (Brant, 2014). Equation related aboveground whole-tree C
stock with DBH was used as