Biomass within the Yosemite Forest Dynamics Plot in 2010.

Biomass is shown to three significant figures (corresponding to 1 kg/ha) to facilitate comparison between less abundant, small-diameter species and more abundant species (standard deviation shown in parentheses). Standard deviation of tree biomass was based on the root mean squared error of the underlying allometric equations, and standard deviation of down woody debris biomass was based on Brown's method [89]. Biomass of shrubs and snags are derived from cover (m2) or measured dimensions and fixed wood density values [see Methods]. Total of living and dead biomass pools was 652.0 Mg/ha.
t – trace; less than 1 kg/ha.
†Fine litter measured by fuel classifications [88]. 100-hour fuels are defined as twigs and fragments with diameter 1″ to 3″ (2.5 cm to 7.6 cm); 10-hour fuels have diameter 0.25″ to 1″ (0.6 cm to 2.5 cm); 1-hour fuels have diameter 0″ to 0.25″ (0 cm to 0.6 cm). Litter and duff are measured by depth.