Dry Weight (Biomass) References
Natural Ecosystem Composed Primarily (more than 95% of its biomass) of Yellow Birch (Betula alleghaniensis Britt.) and White Birch (Betula pendula Roth)
Berntson, G.M. and Bazzaz, F.A. 1998. Regenerating temperate forest mesocosms in elevated CO2: belowground growth and nitrogen cycling. Oecologia 113: 115