Specific leaf area, biomass equations and leaf area equations for European tree species

The data set contains specific leaf area data, biomass equations and leaf area equations for 24 European tree species and 3 introduced species. This includes 868 equations from the literature and 105 raw data sets that were either from the literature or our own data. The number of biomass or leaf area measurements used to produce the equations or included as raw data was > 60,000. The specific leaf area data was also obtained from the literature. The equations were used to produce pseudo-observations of mass or leaf area and were combined with the raw data sets to develop new “general” equations for each species and biomass component (foliage, branch, stem, root, aboveground) that can account for factors describing stand structure and age by including those factors as independent variables. These general equations are provided in separate worksheets of this dataset. The main findings and methodology are described in Forrester et al. (in review). Forrester, D. I., Tachauer, I. H. H., Annighoefer, P., Barbeito, I., Pretzsch, H., Ruiz-Peinado, R., Stark, H., Vacchiano, V., Zlatanov, T., Chakraborty, T., Saha, S., Sileshi, G. W. in review. Biomass and leaf area allometric equations for European tree species incorporating stand structure and tree age.本数据集涵盖24种欧洲树种及3种引进树种的比叶面积（specific leaf area）数据、生物量方程与叶面积方程。其中包含来自公开文献的868组方程，以及105套原始数据集——这些原始数据既取自公开文献，也包含本团队的实测数据。用于构建上述方程或纳入原始数据集的生物量、叶面积测量样本量逾60000条。本数据集的比叶面积数据同样来源于公开文献。研究人员利用前述方程生成了生物量或叶面积的伪观测值，并将其与原始数据集相结合，针对每个树种及各生物量组分（叶、枝、干、根、地上部分）开发了全新的“通用”方程；此类通用方程可通过将林分结构与树龄相关因子作为自变量纳入模型，实现对这些因子的量化考量。本数据集的单独工作表中收录了这些通用方程。本研究的主要发现与方法学细节详见Forrester等人（在审）的研究论文：Forrester, D. I., Tachauer, I. H. H., Annighoefer, P., Barbeito, I., Pretzsch, H., Ruiz-Peinado, R., Stark, H., Vacchiano, V., Zlatanov, T., Chakraborty, T., Saha, S., Sileshi, G. W. in review. 《纳入林分结构与树龄因子的欧洲树种生物量与叶面积异速生长方程》