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.本研究聚焦德国西南部温带森林，针对欧洲山毛榉（Fagus sylvatica）、银冷杉（Abies alba）、挪威云杉（Picea abies）及欧洲赤松（Pinus sylvestris）开展地上林木生物量与碳储量调查。研究共选取168块样地，涵盖2359株林木，其中老龄大树的占比显著高于常规水平。本研究通过异速生长回归函数计算林木生物量，并结合声波层析成像（sonic tomography）获取的茎干内部腐朽数据对计算结果进行校正。