Carolina Marion de Godoy, Moa Andersson, Merima Hasani, Hans Theliander
{"title":"Uniformity of delignification during kraft pulping of hardwood chips: impact of wood structure and the importance of impregnation","authors":"Carolina Marion de Godoy, Moa Andersson, Merima Hasani, Hans Theliander","doi":"10.1007/s00226-026-01769-4","DOIUrl":"10.1007/s00226-026-01769-4","url":null,"abstract":"<div><p>This study examines the homogeneity of lignin and xylan removal in model sapwood chips of alder (<i>Alnus glutinosa</i>), birch (<i>Betula pubescens</i>), beech (<i>Fagus sylvatica</i>), and aspen (<i>Populus tremula</i>) during batch kraft pulping. The first experiments focused on investigating the effect of hardwood morphology on the evolution of pulping. By comparing the gradients of lignin and xylan inside the chips at different stages of delignification, it was established that the process is more uniform in hardwoods of lower density (high porosity), like aspen. Hence, characteristics such as large and frequent vessels, thin fiber walls, and large lumens may help to achieve pulps with more homogeneous composition and to avoid shives. The influence of other morphological features was not clear. The results also suggested that the impact of morphology was mostly connected to the impregnation step, as the porosity of the sapwood dictated the initial concentration of hydroxide ions within the chips. Thus, a second set of experiments was conducted to evaluate the possibility to overcome this impact by utilizing liquors with high alkali content during pulping. Among the evaluated conditions, the use of liquor containing 2 mol HO<sup>−</sup>/kg during impregnation followed by cooking with 0.55 mol HO<sup>−</sup>/kg was shown to be a reasonable approach to increase the uniformity of delignification.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01769-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antoine Stéphan, Patrick Perré, Clément L’Hostis, Romain Rémond
{"title":"Experimental assessment of Mechano-Sorptive models for wood drying by combining fork and flying wood tests","authors":"Antoine Stéphan, Patrick Perré, Clément L’Hostis, Romain Rémond","doi":"10.1007/s00226-026-01765-8","DOIUrl":"10.1007/s00226-026-01765-8","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper proposes a careful analysis of the experimental results of two original experimental setups to assess the validity of mechano-sorptive model suitable for wood drying. For that purpose, the combination of the <i>Fork</i> and <i>Flying Wood</i> tests forms two complementary and contrasted stress load itineraries: the first is used to test and identify the parameters of the mechano-sorptive model through inverse analysis, while the second evaluates the model robustness in predicting the development of drying stresses when coupled with a heat and mass transfer model. Several classical mechano-sorptive models have been compared with these two complementary tests. Among the different models tested, the single dashpot model with moisture-dependent viscosity was found to be the most suitable for reproducing the behaviour of beech in both tests. However, the remaining differences highlighted the need for an improved model.</p>\u0000 </div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kinetic and environmental effects of xylanase-pectinase pretreatment-mediated weakly alkaline hydrogen peroxide bleaching of poplar chemi-thermomechanical pulp","authors":"Jing Li, Yu-Ning Zha, Han-Min Wang, Qing-Xi Hou","doi":"10.1007/s00226-026-01768-5","DOIUrl":"10.1007/s00226-026-01768-5","url":null,"abstract":"<div><p>The pulp and paper industry faces growing challenges arising from fiber shortages and environmental concerns. High yield pulping technology has emerged as a key solution, but the high lignin content in high yield pulp (HYP) restricts its brightness, posing a significant challenge for the bleaching process. Although traditional strong alkaline hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) bleaching of HYP is effective, it results in fiber yield loss and the generation of anionic impurities, thereby bringing about additional environmental burdens. In contrast, weakly alkaline H<sub>2</sub>O<sub>2</sub> bleaching is more environmentally friendly and preserves a high pulp yield, but it struggles to achieve the desired brightness due to the reduced reactivity of lignin. This work addresses these challenges by investigating the effect of xylanase-pectinase (XP) pretreatment combined with weakly alkaline H<sub>2</sub>O<sub>2</sub> bleaching to improve both bleaching efficiency and environmental benefits in the bleaching of poplar chemi-thermomechanical pulp (CTMP). The kinetic analysis reveals that the XP pretreatment significantly enhanced the efficiency of weakly alkaline H<sub>2</sub>O<sub>2</sub> bleaching, accelerating lignin removal and increasing pulp brightness. The XP pretreatment effectively reduced the electrical conductivity, cationic demand, and chemical oxygen demand of the bleaching effluent. The mechanism studies demonstrate that the XP pretreatment effectively cleaved lignin-carbohydrate complex linkages and degraded hemicelluloses side chains, significantly increasing the accessibility and reactivity of the residual lignin. The integration of XP pretreatment with weakly alkaline H<sub>2</sub>O<sub>2</sub> bleaching can offer a sustainable and efficient process for poplar CTMP upgrading, simultaneously enhancing the bleaching efficiency and mitigating the environmental footprint.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Youming Dong, Xingjia Cui, Mark Hughes, Jianzhang Li
{"title":"Effects of taurine on the thermal degradation kinetics and flammability of poplar wood","authors":"Youming Dong, Xingjia Cui, Mark Hughes, Jianzhang Li","doi":"10.1007/s00226-026-01764-9","DOIUrl":"10.1007/s00226-026-01764-9","url":null,"abstract":"<div>\u0000 \u0000 <p>Taurine, a bio-based sulfur- and nitrogen-containing compound, has recently attracted attention as a sustainable flame-retardant additive for polymeric materials. However, its potential in enhancing the fire resistance of wood remains largely unexplored. In this study, the effects of taurine on the thermal degradation behavior and combustion performance of wood were systematically investigated using pyrolysis kinetics, cone calorimetry, and thermogravimetry–infrared spectroscopy (TG–FTIR). Taurine treatment promoted catalytic char formation during thermal degradation, resulting in a lower maximum degradation temperature and higher char yield. Kinetic analysis revealed that taurine-treated wood underwent three distinct decomposition stages with activation energies significantly higher than those of untreated wood, indicating an increased energy barrier for pyrolysis. Cone calorimetry results showed that taurine markedly suppressed heat release in the later stages of combustion and effectively reduced total smoke production. TG–FTIR analysis confirmed the release of sulfur- and nitrogen-containing species, which can capture free radicals, inhibit combustion chain reactions, and dilute oxygen and flammable gases, thereby enhancing flame retardancy. This work provides the first comprehensive elucidation of taurine’s flame-retardant mechanism in wood, revealing its dual condensed- and gas-phase synergistic effects and offering new insight into the development of bio-based, environmentally friendly, and efficient flame-retardant systems for wood materials.</p>\u0000 </div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modulating hierarchical porosity and surface chemistry in wood-derived BiVO4 composites for enhanced photocatalysis","authors":"Weiqi Leng, Wei Tao, Xuefei Jiang, Davina Chloe De La Victoire Magni, Sheng He, Junfeng Wang, Buyun Lu, Jiangtao Shi, Shengcheng Zhai","doi":"10.1007/s00226-026-01763-w","DOIUrl":"10.1007/s00226-026-01763-w","url":null,"abstract":"<div>\u0000 \u0000 <p>The remediation of water contaminated by refractory organic pollutants demands efficient, sustainable technologies. Semiconductor photocatalysis, particularly using visible-light-responsive bismuth vanadate (BiVO<sub>4</sub>), is a promising advanced oxidation process. However, the practical application of BiVO<sub>4</sub> is hindered by challenges such as rapid charge recombination and difficult recovery. To address these issues, natural wood with its hierarchical porous structure serves as an ideal functional substrate, yet its performance is highly dependent on the pretreatment conditions. Controlling the pyrolysis temperature of biomass substrates is a key strategy to improve the performance of supported photocatalysts. In this work, balsa wood was thermally treated at different temperatures ranging from 260 °C to 500 °C to modulate its hierarchical pore structure and chemical composition, followed by vacuum-assisted impregnation with a BiVO<sub>4</sub> precursor to fabricate BiVO<sub>4</sub>@wood composites. Specifically, pyrolysis at 260 °C preserved the natural honeycomb architecture and facilitated a uniform, film-like BiVO<sub>4</sub> coating, whereas higher temperatures (400 °C, 500 °C) caused structural collapse and resulted in dispersed BiVO<sub>4</sub> particles. Compositional analysis showed staged degradation: selective hemicellulose decomposition at 260 °C produced an oxygen-rich porous network while retaining the cellulose framework, whereas temperatures ≥ 400 °C led to complete cellulose decomposition and lignin carbonization, accompanied by surface oxygen depletion. Among the synthesized composites, the sample pyrolyzed at 260 °C (IW-260) exhibited the most favorable features, including a well-preserved honeycomb architecture, enhanced porosity, abundant oxygen-containing functionalities, and the narrowest bandgap (1.50 eV). These attributes enabled IW-260 to achieve a Rhodamine B degradation efficiency of 90.03% within 120 min, significantly outperforming catalysts derived from higher-temperature substrates. This superior performance is attributed to the synergistic effects of reduced optical interference from lignin, enhanced porosity from hemicellulose removal, and optimal BiVO<sub>4</sub> film formation. This study identifies 260 °C as the optimal pyrolysis temperature for producing high-performance BiVO<sub>4</sub>@wood photocatalysts and provides fundamental insights for designing wood-based materials for advanced wastewater remediation.</p>\u0000 </div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unveiling intraspecific variation in growth, heartwood pigmentation, and oil chemistry of East Indian sandalwood: case study","authors":"Muniammal Vediappan Durai, Gaddam Sudharshan Reddy","doi":"10.1007/s00226-026-01759-6","DOIUrl":"10.1007/s00226-026-01759-6","url":null,"abstract":"<div>\u0000 \u0000 <p>East Indian sandalwood (<i>Santalum album</i> L.) is valued globally for its fragrant heartwood and premium essential oil, yet natural variation in growth and heartwood traits remains insufficiently documented. This study investigated growth attributes, heartwood properties, and essential oil composition of <i>S. album</i> in the Nachivayal Sandalwood Reserve II (NSR-II), Marayoor, Kerala. Forty-seven trees—representing 40% of the 118 trees across defined girth classes—were sampled. Each tree was assessed for biometric traits; heartwood dimensions; bark and sapwood thickness; heartwood color (CIELAB parameters); and essential oil yield and santalol composition using GC–MS. Marked variation was recorded in growth and wood traits, with heartwood proportion ranging from 61% to 98% and oil yield from 3.1% to 6.7%. PCA and correlation analyses revealed strong positive associations among growth traits, heartwood thickness, and heartwood proportion, indicating coordinated allocation to structural development. In contrast, oil constituents—particularly β-santalol—showed weak or negative relationships with growth traits, suggesting potential trade-offs between biomass accumulation and secondary metabolite production. Heartwood darkened and became more saturated with increasing girth, and these color attributes correlated positively with oil yield and total santalol content. High-yielding, santalol-rich individuals identified in NSR-II provide promising germplasm for breeding, clonal propagation, and conservation. The findings enhance understanding of trait variability and support targeted strategies for sustainable management and genetic improvement of <i>S. album</i>.</p>\u0000 </div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tiantian Yang, Lingcheng Wang, Dan Luo, Ao Shen, Changtong Mei
{"title":"Preparation and mechanism analysis of self-healing superhydrophobic wood with high durability, dimensional stability and self-cleaning property","authors":"Tiantian Yang, Lingcheng Wang, Dan Luo, Ao Shen, Changtong Mei","doi":"10.1007/s00226-026-01762-x","DOIUrl":"10.1007/s00226-026-01762-x","url":null,"abstract":"<div>\u0000 \u0000 <p>Inherent hydrophilicity of wood usually induces water-related problems and impacts wood sustainable application. This study proposed to transform hydrophilic wood into superhydrophobic materials by introducing biomass-derived furfuryl alcohol (FA) prepolymer and self-made polymerized FA nanoparticles (PFAnps) through simple surface spray. The modified poplar wood (<i>Populus euramericana</i> Cv.) (PFA-PFAnps wood) showed excellent superhydrophobicity and the contact angle (CA) and dynamic rolling angle reached 161.8° and 3.4°. The CA kept over 161° even after 120 s, indicated the time stability of fabricated superhydrophobic wood. Besides, PFA-PFAnps wood exhibited durable superhydrophobicity and remarkable resistance to mechanical abrasion, tape peeling, knife scratching and high temperature. The mechanisms were revealed with SEM, optical profilometer and FTIR analysis: ①in-situ polymerized furfural resin and PFAnps formed dense robust coatings, which covered many cells, voids and sorption sites, protecting wood from external influence; ②hydrophobic furfural resin polymerization fixed PFAnps on wood surface and protected the micro-nano rough structure. Besides, PFA-PFAnps wood presented self-healing superhydrophobicity because the constructed coating simulating natural lotus leaves owned uniform micro-nano structures and composition from inside out. When the surface layer was destroyed, the new exposed surface after brief sanding had similar structures and composition and superhydrophobicity. PFA-PFAnps wood displayed remarkable self-cleaning property, and improved dimensional stability suggested by 27% reduction of volume change mainly due to combined effects of water path blocking, sorption site coverage and cell wall bulking. The new fabrication approach and mechanism analysis may provide references for upgrading low-quality wood and preparing superhydrophobic materials for wide and sustainable application against water attack.</p>\u0000 </div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Radial distribution of tension wood properties in a thick branch of Zelkova serrata Makino. A view of G-layer development","authors":"Tamaki Kugimiya, Hiroyuki Yamamoto, Masato Yoshida, Han Wang, Miyuki Matsuo-Ueda, Naohisa Kameyama","doi":"10.1007/s00226-026-01761-y","DOIUrl":"10.1007/s00226-026-01761-y","url":null,"abstract":"<div><p>Effective utilization of small-diameter hardwood, including large-diameter branches, has become increasingly important for sustainability. These materials consist of small-diameter logs with irregular shapes; consequently, the timber products contain both sapwood and heartwood and frequently exhibit tension wood (TW). Therefore, the continuous variation from pith to bark, and from TW to opposite wood (OW) must be considered when using these logs for timber. However, there is limited information on the radial heterogeneity of physical properties from the pith to the bark, particularly regarding TW formation. In this study, an inclined thick branch of a keyaki tree (<i>Zelkova serrata</i> Makino) was used to measure the radial distribution of wood physical properties—such as hygrothermal recovery (HTR) strain, drying strain, cellulose crystallinity index (<i>C.I</i>.), and microfibril angle (<i>MFA</i>) related to G-layer proportion—from the pith to the bark. On the upper half of the inclined branch, the G-layer was formed, and its proportion remained nearly uniform. Higher <i>C.I</i>., smaller <i>MFA</i>, and greater drying strain were observed in this region, primarily influenced by the G-layer proportion. The HTR strain exhibited behavior characteristic of TW near the bark on the upper side. However, as it approached the pith, the HTR strain displayed behavior distinct from that of TW. This suggests that the HTR strain reflects not only the G-layer proportion but also other factors related to the distance from the pith, such as the history of residual growth stress accumulation in the xylem during secondary growth.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147441688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seo Lin Nam, Erin R. Price, Martin Williams, Isabelle Duchesne, Nathalie Isabel, James J. Harynuk
{"title":"Assessing analytical techniques for wood metabolomics through a comparison of DART-TOFMS and GC×GC-TOFMS for species-level wood identification","authors":"Seo Lin Nam, Erin R. Price, Martin Williams, Isabelle Duchesne, Nathalie Isabel, James J. Harynuk","doi":"10.1007/s00226-026-01755-w","DOIUrl":"10.1007/s00226-026-01755-w","url":null,"abstract":"<div>\u0000 \u0000 <p>Illegal logging poses a significant threat to ecosystems and undermines legal timber markets. Efforts to combat the issue are often hindered by the lack of robust tools for species-level wood authentication. Traditional methods such as anatomical observations and DNA analysis frequently struggle to achieve accurate species-level identification. Chemical profiling of wood metabolites has emerged as a promising alternative. Two powerful techniques, Direct Analysis in Real Time Time-of-Flight Mass Spectrometry (DART-TOFMS) and Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry (GC×GC-TOFMS) offer unique strengths for wood identification. DART-TOFMS enables rapid chemical analysis with minimal sample preparation. GC×GC-TOFMS, known for its exceptional separation capabilities, allows for detailed chemical profiling that may enhance species-level discrimination. Despite their potential, direct comparisons of these two techniques for species-level classification have not been done yet. In this study, we present a comparative analysis using 60 wood core samples from two <i>Quercus</i> (Oak) species and 60 stemwood samples from three <i>Picea</i> (Spruce) species. Each sample was analyzed using both DART-TOFMS and GC×GC-TOFMS. Partial Least Squares Discriminant Analysis (PLS-DA) was employed for classification modeling, with feature selection based on VIP scores. Our results show that both techniques demonstrated strong classification performance in differentiating both <i>Quercus</i> and <i>Picea</i> species. Notably, GC×GC-TOFMS yielded slightly higher classification accuracy in this study, which may be attributed to its enhanced separation capabilities and ability to resolve structurally similar compounds such as isomers. The findings from this work will contribute to a deeper understanding of the capabilities of both techniques in wood metabolomics, with applications in forensic science and efforts to combat illegal logging.</p>\u0000 </div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147441687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arthur Bontemps, Raphaël Langlois, Benoît Blaysat, Gaël Godi, Rostand Moutou Pitti, Emmy Voyer, Joseph Gril
{"title":"Analysis of mode I fracture propagation in wood using high-resolution full-field measurements and imaging","authors":"Arthur Bontemps, Raphaël Langlois, Benoît Blaysat, Gaël Godi, Rostand Moutou Pitti, Emmy Voyer, Joseph Gril","doi":"10.1007/s00226-026-01754-x","DOIUrl":"10.1007/s00226-026-01754-x","url":null,"abstract":"<div><p>Experimental characterization of wood fracture properties raises a number of challenges: crack tip location or the application of equivalent linear elastic fracture mechanics theory to a heterogeneous and anisotropic material. This article presents the application of the Localized Spectrum Analysis, a full-field measurement method, to obtain high-resolution strain maps for the analysis of three mode I crack propagation tests on TDCB silver fir wood specimens. The strain maps presented enabled us to identify annual rings through stiffness variations, to observe internal cracks through abnormal compression zones, and to determine the material’s resistance-curves, therefore its critical energy release rate. This work opens up interesting prospects for the use of new measurement methods in the characterization of wood fracture properties.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147441319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}