Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/55980
Title: Timber volume estimation by using terrestrial laser scanning: method in hyperdiverse secondary forests
Other Titles: Estimativa de volume de madeira por uso de varredura a laser terrestre: método em florestas secundárias hiperdiversas
Keywords: TLS
Atlantic forest
LiDAR
Terrestrial laser scanners (TLS)
Light detection and ranging
Floresta Atlântica
Issue Date: 15-Aug-2022
Publisher: Sociedade de Investigações Florestais (SIF)
Citation: VIANA, A. B. T. et al. Timber volume estimation by using terrestrial laser scanning: method in hyperdiverse secondary forests. Revista Árvore, Viçosa, MG, v. 46, p. 1-12, 2022. DOI: 10.1590/1806-908820220000021.
Abstract: High accuracy in timber volume estimation in tropical forests is required to support sustainable management. Terrestrial laser scanners (TLS) can provide high-quality estimates from tree structural variables. We compared stem variable estimations obtained by TLS and traditional methods at tree level and adjusted volume equations using data of a secondary seasonal semideciduous forest (Atlantic Forest). We also discuss the feasibility of TLS in hyperdiverse and secondary forest fragments. Traditional measurements (Method I) and TLS-based measurements (Method II) were performed on 29 trees belonging to 10 species. Volume equations based on the Schumacher and Hall (SH) and Spurr models were generated. DBH (diameter at breast height) was equal for both methods. Total height (TH) was overestimated by Method II, and commercial height (CH) showed a low correlation between the two methods. The adjusted volumetric equations were different for both methods, and those based on the SH volume model showed the best fit. Our results lead us to infer that in hyperdiverse secondary forests, tree structural variables should be obtained via TLS. However, attention should be given to the occlusion of target trees by the regenerating understory and to height estimates, which can be biased by the crown characteristics of the dominant species.
URI: http://repositorio.ufla.br/jspui/handle/1/55980
Appears in Collections:DCF - Artigos publicados em periódicos



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