Aboveground biomass and carbon stock density in Fagus sylvatica, Abies alba, Picea abies, and Pinus sylvestris stands of Germany

We studied aboveground tree biomass and carbon stocks in temperate forests of Fagus sylvatica, Abies alba, Picea abies, and Pinus sylvestris in SW Germany and selected 168 plots with 2359 trees with a disproportionally high proportion of large old trees. We calculated biomass based on allometric regression functions and corrected the results with data of internal stem decay obtained with sonic tomography.