Improving the Fagacées growth model with an expanded common beech (Fagus sylvatica L.) data series from France and Germany

The Fagacées growth model was originally designed for application in the Northern half of France. It is a robust with potential applicability to larger area, though this has not yet been verified. We added new data original parameterization set and our results show that formalism can be generalized. yield management pure even-aged stands European beech served as prototype build models other tree species. objective study improve components additional from North-Western France South-Western Germany. Our calibrated on several forest inventory sets. first one (F) used elaborate equations model. second (F+) extended measurements same sites third (G) adds complementary network Southwestern last (A) aggregate all these Fitting F+ dataset led us modify equation stand basal area increment. This also fit German well. could applied datasets, some parameter values after recalibrating according dataset. conclude general form model’s appropriate regions, but recalibration preferable order reflect local conditions. advantage approach fewer are required recalibrate an existing than establish entirely one.