# The sum of the BGB of major species is the BGB in
top 20 cm soil layer determined in this study, while the BGB of
community is estimated based on the BGB in the top 20 cm soil layer and
the belowground biomass profile determined in previous studies for these
communities (Chai et al. 2014; Hou et al., 2014).
TABLE 3. Estimation of plant aboveground biomass (AGB) and net
primary productivity (ANPP), belowground biomass (BGB) and net primary
productivity (BNPP), and biomass-weighted community mean PhytOC content,
stock and production flux (mean ± SE) of the three steppe types in Inner
Mongolia.