Forestry An International Journal of Forest Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract Crown radius (CR) and crown width are fundamental indicators used to describe tree sizes widely included as predictors in growth yield models. is the arithmetic average of two perpendicular diameters each other, obtained from measurements four radii: east, south, west, north. Climate change soil variations influence physiological activities trees, thereby impacting development. However, most CR studies do not quantify impact climate factors on CR. In this study, we developed a nonlinear mixed-effects simultaneous model system address above problems. This study 7188 trees 98 plantation plots Korean pine (Pinus koraiensis) northeast China. The results showed that (extreme temperature precipitation) (total nitrogen) variables improved performance system. large-sized was more sensitive compared smaller trees. Incorporating plot-level random effects into both fitting accuracy predictive width. Our provide new insights environmental variability planted forests suggest integrating modeling can improve results. These findings may become relevant for improving forest management strategies under changing conditions.

Язык: Английский