Modeling knot features using branch scars from Mongolian oak (Quercus mongolica)
Wood quality is an important indicator for modern sawmills. Internal wood characteristics can be derived from their correlations with external appearances. In this study, we developed linear regression models to predict knot size from surface features of Mongolian oak (Quercus mongolica) using data...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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PeerJ Inc.
2023-01-01
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| Series: | PeerJ |
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| Online Access: | https://peerj.com/articles/14755.pdf |
| _version_ | 1827600052881719296 |
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| author | Xiu-jun Lu Lei Wang Hui-lin Gao Hao Zhan Xiao-lin Zhang |
| author_facet | Xiu-jun Lu Lei Wang Hui-lin Gao Hao Zhan Xiao-lin Zhang |
| author_sort | Xiu-jun Lu |
| collection | DOAJ |
| description | Wood quality is an important indicator for modern sawmills. Internal wood characteristics can be derived from their correlations with external appearances. In this study, we developed linear regression models to predict knot size from surface features of Mongolian oak (Quercus mongolica) using data collected from 53 trees. For this, manual measurements and X-ray computed tomography scanning technology was respectively used to obtain internal and external features of 1,297 knots. Our results showed that Mongolian oak knots were generally concentrated in the middle part of oak stems, with fewer knots observed at the top and base. The parameters of knot and scar showed significant correlations (P < 0.01), where length and diameter of the corresponding external scar increase with increasing the length and diameter of a knot. The corresponding external scar can be used as an effective indicator to predict the internal value of oak logs. The accuracy of our constructed model is more than 95% when assessed against independent test samples. These models thus can be applied to improve the practical production of oak timber and reduce commercial loss caused by knots. These additional data can improve the estimation of the influence of knots on wood quality and provide a theoretical foundation for investigating the characteristics of hardwood knots. |
| first_indexed | 2024-03-09T04:29:29Z |
| format | Article |
| id | doaj.art-239668ea36a54844a61ae21273886a39 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T04:29:29Z |
| publishDate | 2023-01-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-239668ea36a54844a61ae21273886a392023-12-03T13:37:24ZengPeerJ Inc.PeerJ2167-83592023-01-0111e1475510.7717/peerj.14755Modeling knot features using branch scars from Mongolian oak (Quercus mongolica)Xiu-jun Lu0Lei Wang1Hui-lin Gao2Hao Zhan3Xiao-lin Zhang4Shenyang Agricultural University, Shenyang, ChinaShenyang Agricultural University, Shenyang, ChinaShenyang Agricultural University, Shenyang, ChinaShenyang Agricultural University, Shenyang, ChinaShenyang Agricultural University, Shenyang, ChinaWood quality is an important indicator for modern sawmills. Internal wood characteristics can be derived from their correlations with external appearances. In this study, we developed linear regression models to predict knot size from surface features of Mongolian oak (Quercus mongolica) using data collected from 53 trees. For this, manual measurements and X-ray computed tomography scanning technology was respectively used to obtain internal and external features of 1,297 knots. Our results showed that Mongolian oak knots were generally concentrated in the middle part of oak stems, with fewer knots observed at the top and base. The parameters of knot and scar showed significant correlations (P < 0.01), where length and diameter of the corresponding external scar increase with increasing the length and diameter of a knot. The corresponding external scar can be used as an effective indicator to predict the internal value of oak logs. The accuracy of our constructed model is more than 95% when assessed against independent test samples. These models thus can be applied to improve the practical production of oak timber and reduce commercial loss caused by knots. These additional data can improve the estimation of the influence of knots on wood quality and provide a theoretical foundation for investigating the characteristics of hardwood knots.https://peerj.com/articles/14755.pdfX-rayQuercus mongolicaBranch scarKnotMorphology models |
| spellingShingle | Xiu-jun Lu Lei Wang Hui-lin Gao Hao Zhan Xiao-lin Zhang Modeling knot features using branch scars from Mongolian oak (Quercus mongolica) PeerJ X-ray Quercus mongolica Branch scar Knot Morphology models |
| title | Modeling knot features using branch scars from Mongolian oak (Quercus mongolica) |
| title_full | Modeling knot features using branch scars from Mongolian oak (Quercus mongolica) |
| title_fullStr | Modeling knot features using branch scars from Mongolian oak (Quercus mongolica) |
| title_full_unstemmed | Modeling knot features using branch scars from Mongolian oak (Quercus mongolica) |
| title_short | Modeling knot features using branch scars from Mongolian oak (Quercus mongolica) |
| title_sort | modeling knot features using branch scars from mongolian oak quercus mongolica |
| topic | X-ray Quercus mongolica Branch scar Knot Morphology models |
| url | https://peerj.com/articles/14755.pdf |
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