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Quality and price of spruce logs, determined conventionally and by dendrochronological and NDE techniques [Elektronski vir]Straže, Aleš ; Novak, Klemen, 1979- ; Čufar, KatarinaWe examined valuable log assortments of Norway spruce (Picea abies) from a traditional auction in Slovenia where spruce growth on many sites is affected by climate change. From 6620 logs, we selected ... 817 that obtained the highest prices. Factors including log dimensions and geometry, tree-ring characteristics, quality grades according to the standard, properties measured by NDE stress wave testing, and their combined effect on price were modelled. The results showed that half of the auctioned logs were of highest quality (Q1 , Q2 ), with diameters over 60 cm. These logs were more expensive than the thinner logs of lower quality (Q3 , Q4 ). The quality class of the logs, determined by their external features and geometry, was associated with tree-ring and acoustic characteristics. The artificial neural network model (ANN) with feed-forward backpropagation using tree-ring data, longitudinal stress wave velocity, and damping showed that more than 75% of the logs could be accurately classified into quality classes. On the other hand, tree-ring data and acoustic characteristics could not adequately explain the price offered at auction, which probably also depends on unidentified individual requirements and the needs of the buyer.Source: Forests [Elektronski vir]. - ISSN 1999-4907 (Vol. 13, iss. 5, 2022, 1-15 str.)Type of material - e-articlePublish date - 2022Language - englishCOBISS.SI-ID - 108420867
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Author | Straže, Aleš ; Novak, Klemen, 1979- ; Čufar, Katarina |
Title | Quality and price of spruce logs, determined conventionally and by dendrochronological and NDE techniques [Elektronski vir] |
Publication date | |
COBISS.SI-ID | 108420867 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Unidentified |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Researchers-2.1-UL-BF-952011 | C3330-19-952011 | ||
Les in lignocelulozni kompoziti | P4-0015-2015 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Gozdno-lesna veriga in podnebne spremembe: prehod v krožno biogospodarstvo | P4-0430-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Možnosti rabe lesa listavcev v slovenskem biogospodarstvu | V4-2016-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Straže, Aleš | 18149 |
Novak, Klemen, 1979- | 52730 |
Čufar, Katarina | 02937 |
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