Height–diameter relationship of plantation-grown juvenile black locust trees is differentiated according to their growth rate, which is positively affected by spacing

Simple item page
dc.contributor.authorStankova, Tatiana
dc.contributor.authorDimitrova, Proletka
dc.contributor.authorGyuleva, Veselka
dc.contributor.authorStefanova, Penka
dc.date.accessioned2023-01-13T04:43:26Z
dc.date.available2023-01-13T04:43:26Z
dc.date.issued2022-12-10
dc.description© 2022 Tatiana Stankova et al., published by Sciendo. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License - https://creativecommons.org/licenses/by-nc-nd/4.0/ . The Version of Scholarly Record of this Article is published in Folia Forestalia Polonica, Series A – Forestry, 2022, Vol. 64 (4), 195–205, available online at: https://sciendo.com/article/10.2478/ffp-2022-0019 . Keywords: calibration; generalised height–diameter model; mixed-effects model; random parameter component; Robinia pseudoacacia L; black locust tree; Bulgaria.
dc.description.abstractThe main objective of this study was to explore the height–diameter relationship of plantation-grown juvenile black locust trees and to clarify if the tree height can be adequately predicted at stand level from the breast-height diameter and which is the most appropriate functional form; if the predictions can be expanded to a wider region by mixed-effects modelling and which is the most relevant level for model localisation; if the random parameter components can be calibrated with stand-level variables and which of them is an appropriate predictor. We first fitted seven one-predictor models at plot level and we selected the most adequate simple function according to a set of goodness-of-fit criteria. It was then approximated over the entire data set in nine different mixed-effects model forms that were compared by Likelihood Ratio Test. Calibrations of the random parameter component of the best mixed-effects model with a height–diameter measurement of one tree at each occasion and with a function of a plantation-level variable were attempted. Our study derived a mixed-effects and a two-predictor deterministic models, based on an exponential function of the reciprocal value of the diameter, with a constant intercept of 1.3. Height–diameter relationship localisation at plot level, regardless the geographic region, was most suitable for the investigated juvenile black locust data. The specific component of the rate parameter in the mixed-effects model form differentiated the plantations according to their growth potential. A positive correlation between the height increase and the growing space was also distinguished that allowed calibration of the mixed-effects rate parameter by a linear function of spacing to develop a two-predictor deterministic function. However, the mixed-effects model showed higher predictive power than the purely deterministic relationship.
dc.description.sponsorshipAcknowledgements: The authors are grateful to the anonymous reviewers and the journal editors for their valuable comments and suggestions on the manuscript. This study was carried out as a part of the project ‘Height–diameter relationships of fast-growing broadleaved tree species’ (Bulgarian Academy of Sciences, 2020–2022). The authors dedicate it to their friend and colleague Prof. Dr. Emil Popov. Data collection was financially supported by the Bulgarian National Science Fund through the project DFNI-Е01/6, 2012.
dc.identifier.citationStankova, T., Dimitrova, P., Gyuleva, V. & Stefanova, P. (2022). Height–diameter relationship of plantation-grown juvenile black locust trees is differentiated according to their growth rate, which is positively affected by spacing. Folia Forestalia Polonica, 64(4), 195-205. https://doi.org/10.2478/ffp-2022-0019
dc.identifier.otherhttps://doi.org/10.2478/ffp-2022-0019
dc.identifier.urihttps://hdl.handle.net/20.500.14096/209
dc.language.isoen
dc.publisherSciendo (De Gruyter)
dc.titleHeight–diameter relationship of plantation-grown juvenile black locust trees is differentiated according to their growth rate, which is positively affected by spacing
dc.typeArticle

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
10.2478_ffp-2022-0019.pdf
Size:
4.53 MB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Forest Sciences