Growth models of black poplar trees, section Aigeiros (Duby)

• Main Authors: Andrašev Siniša, Vučković Milivoj, Rončević Savo, Bobinac Martin
• Format: Article
• Language: srp
• Published: Faculty of Forestry, Belgrade 2006-01-01
• Series: Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu
• Subjects: growth models; diameter; height; model parameters; poplar
• Online Access: http://www.doiserbia.nb.rs/img/doi/0353-4537/2006/0353-45370694083A.pdf

Different courses of tree growth in height and diameter in nursery and plantation, immediately after transplanting, cause the difficulties in adaptation of tree growth models. Tree growth models, which do not include the sudden transitions and specificities of nursery growth and in the first years after planting can show errors in the assessment of the values of current and average increment at the moment of culmination and at the age of maximum increment. This paper proposes the introduction of additional parameters in the models of diameter and height growth, e.g. the values of mean diameter at breast height and mean height immediately after planting. Compared to the models without additional parameters, the precision of diameter and height model is reflected in the lower standard error of regression (se) and in the more accurate assessment of current and average increment at the moment of culmination and at the age of culmination.