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Comparison of different approaches to estimate bark volume of industrial wood at disc and log scale

  • Within the wood supply chain, the measurement of roundwood plays a key role due to its high economic impact. While wood industry mainly processes the solid wood, the bark mostly remains as an industrial by-product. In Central Europe, it is common that the wood is sold over bark but that the price is calculated on a timber volume under bark. However, logs are often measured as stacks and, thus, the volume includes not only the solid wood content but also the bark portion. Mostly, the deduction factors used to estimate the solid wood content are based on bark thickness. The aim of this study was to compare the estimation of bark volume from scaling formulae with the real bark volume, obtained by xylometric technique. Moreover, the measurements were performed using logs under practice conditions and using discs under laboratory conditions. The mean bark volume was 6.9 dm3 and 26.4 cm3 for the Norway spruce logs and the Scots pine discs respectively. Whereas the results showed good performances regarding the root mean square error, theWithin the wood supply chain, the measurement of roundwood plays a key role due to its high economic impact. While wood industry mainly processes the solid wood, the bark mostly remains as an industrial by-product. In Central Europe, it is common that the wood is sold over bark but that the price is calculated on a timber volume under bark. However, logs are often measured as stacks and, thus, the volume includes not only the solid wood content but also the bark portion. Mostly, the deduction factors used to estimate the solid wood content are based on bark thickness. The aim of this study was to compare the estimation of bark volume from scaling formulae with the real bark volume, obtained by xylometric technique. Moreover, the measurements were performed using logs under practice conditions and using discs under laboratory conditions. The mean bark volume was 6.9 dm3 and 26.4 cm3 for the Norway spruce logs and the Scots pine discs respectively. Whereas the results showed good performances regarding the root mean square error, the coefficient of determination (R2) and the mean absolute error for the volume estimation of the total volume of discs and logs (over bark), the performances were much lower for the bark volume estimations only.show moreshow less

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Author:Ferréol BerendtORCiDGND, Felipe de Miguel-DiezORCiD, Evelyn WallorORCiDGND, Lubomir Blasko, Tobias CremerORCiDGND
URN:urn:nbn:de:kobv:eb1-opus-1987
DOI:https://doi.org/10.1038/s41598-021-95188-z
ISSN:2045-2322
Parent Title (English):Scientific Reports
Publisher:Springer Nature
Document Type:Article
Language:English
Year of Completion:2021
Date of Publication (online):2021/09/10
Date of first Publication:2021/08/02
Publishing Institution:Hochschule für nachhaltige Entwicklung Eberswalde
Release Date:2021/09/10
Tag:Environmental sciences; Physics
Volume:11
Article Number:15630
Page Number:8
Institutions / Departments:Fachbereich Wald und Umwelt
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 63 Landwirtschaft / 634 Obstanlagen, Früchte, Forstwirtschaft
open_access (DINI-Set):open_access
Funding by the HNEE:Projekt DEAL
University Bibliography:University Bibliography
Zweitveröffentlichung
Peer-Review / Referiert
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International
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