European Journal of Wood and Wood Products最新文献

{"title":"Buckling behavior of multi-slat bamboo structural members","authors":"Jhonathan Alexander Duque,&nbsp;Emmanuel Atienza,&nbsp;Luis Felipe López,&nbsp;José Jaime García","doi":"10.1007/s00107-026-02466-6","DOIUrl":"10.1007/s00107-026-02466-6","url":null,"abstract":"<div><p>Bamboo multi-slat members assembled from longitudinally cut slats offer improved geometric regularity and crack control compared with bamboo culms, enabling their use as load-bearing elements while reducing material waste. This study experimentally and analytically investigates the compressive behavior of bamboo multi-slat members intended for applications such as trusses, frames, and other structural systems. Two assembly approaches were evaluated: (i) planed <i>Guadua angustifolia</i> slats connected with tightened steel bolts, and (ii) naturally curved <i>Dendrocalamus asper</i> slats connected using non-tightened bolts or bamboo pins. The experimental program assessed buckling performance as a function of assembly approach, connector spacing, and connector type. The degree of structural interaction between slats was quantified using an index ratio, where values approaching unity indicate apparent flexural stiffness close to that of a fully interacting cross-section. All specimens failed by elastic buckling without significant material damage. Members assembled with planed slats and tightened bolts developed high index ratios (0.82–1.00), whereas members assembled with naturally curved slats exhibited substantially lower values (0.03–0.38). Increasing connector spacing from 100 to 300 mm reduced the buckling capacity of the first assembly approach by approximately 11%, while a more pronounced reduction was observed for the second approach. For the naturally curved assemblies, non-tightened steel bolts increased buckling capacity by a factor of 1.9–2.6 compared with bamboo pins. The European buckling formulation (EN 1995-1-1) provided reasonable predictions of the average experimental response of members assembled with planed slats when an imperfection factor of 0.39 was adopted but overestimated the capacity of the naturally curved assemblies. Finite element models reproduced the experimental trends and provided reasonable predictions of both buckling capacity and index ratio. The results demonstrate substantial differences in performance between the investigated assembly approaches and indicate that multi-slat bamboo members fabricated with planed slats and tightened bolts represent a promising alternative for compression-dominated structural applications, provided that adequate fabrication quality and connector detailing are maintained.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00107-026-02466-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancement of fir and poplar wood properties with citric acid and polyols esterification","authors":"Osman Emre Özkan,&nbsp;Saim Ateş,&nbsp;Ali Temiz","doi":"10.1007/s00107-026-02475-5","DOIUrl":"10.1007/s00107-026-02475-5","url":null,"abstract":"<div><p>In this study, fir (<i>Abies nordmanniana</i>) and poplar (<i>Populus</i> sp.) woods were modified via in situ esterification using citric acid (CA) and five different polyols (glucose, sorbitol, glycerol, sucrose, and maltodextrin). Aqueous CA polyol formulations (10%, w/w) were impregnated into wood and cured at 150 °C for 2 h. Equilibrium moisture content (EMC), water absorption (WA), anti-swelling efficiency (ASE), morphological characterization of modified wood, antibacterial activity, decay resistance, compression strength parallel to the grain (CS) and chemical structure properties of the modified wood with citric acid were examined. The results showed that the EMC at 90% relative humidity (RH) and the WA rates of the modified woods decreased, while ASE increased to 57%. Antibacterial activity against <i>E. coli</i> and <i>S. aureus</i> was observed in fir wood modified with CA and in poplar wood modified with CA, CA/sorbitol, CA/glycerol. The fungal decay test showed the mass loss of fir wood samples ranged between 5.4 and 7.7% and 7.3–10.3% in poplar wood, indicating enhanced biological durability. CS increased by 10% in fir wood and 21.3% in poplar wood after modification. In summary, citric acid-polyol modification enhanced the physical, mechanical, and biological properties of fir and poplar wood, demonstrating a promising, eco-friendly, and cost-effective wood modification method.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acoustic signal-based cutting tool condition monitoring in woodworking using deep learning","authors":"Srđan Svrzić,&nbsp;Mlađan Popović,&nbsp;Mladen Furtula,&nbsp;Zoran Nikolić,&nbsp;Marija Đurković,&nbsp;Aleksandar Dedić,&nbsp;Petar Todorović,&nbsp;Arso Vukićević","doi":"10.1007/s00107-026-02465-7","DOIUrl":"10.1007/s00107-026-02465-7","url":null,"abstract":"<div><p>Effective monitoring of wood cutting processes is crucial for maintaining cutting quality, extending tool life, and reducing energy and material waste. While conventional methods rely on cutting forces, power consumption, or temperature measurements, this study explores acoustic signal analysis as an alternative, leveraging its sensitivity to tool condition, cutting dynamics, and transient high-frequency events. The primary contribution of this study lies in the development of frequency-intensity-time representations derived from acoustic signals generated during particleboard cutting and in the subsequent classification of these patterns using deep learning algorithms. In parallel, cutting power consumption and tool temperature were analyzed as reference monitoring variables to test the hypothesis that deep learning-based classification of acoustic data provides a more accurate and reliable approach for process monitoring. Experimental investigations were conducted using two circular saw blades with different dullness conditions saw blades operating at feed rates of 10 m/min and 15 m/min. The workpiece material was melamine-faced particleboard. Statistical analysis revealed highly significant differences in power consumption between cutting conditions, while temperature measurements did not consistently distinguish between feed rates or tool wear states. Acoustic signals were acquired, pre-processed, and classified using several deep learning architectures. The highest classification accuracy of 92.00% was achieved using ConvNetXt-XL, while other architectures, including ResNet, EfficientNet, VGG19, DenseNet, MobileNet V2, Inception V3, and SqueezeNet achieved accuracies between 73.00% and 91.00%. The obtained results demonstrate the effectiveness of acoustic signals as a reliable monitoring variable for intelligent diagnostics and condition monitoring in wood machining processes.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental investigation on damage-induced changes in modal parameters of cross-laminated timber panels","authors":"Ahmet Can Altunışık,&nbsp;Hasan Öztürk,&nbsp;Fezayil Sunca,&nbsp;Fatih Yesevi Okur,&nbsp;Algıhan Kaşif Karahasan,&nbsp;Aydın Demir,&nbsp;Okan İlhan,&nbsp;Abdullah Uğur Birinci,&nbsp;Nadir Ayrilmis,&nbsp;Cenk Demirkır","doi":"10.1007/s00107-026-02469-3","DOIUrl":"10.1007/s00107-026-02469-3","url":null,"abstract":"<div><p>The changes in the modal parameters of cross-laminated timber (CLT) panels exposed to damage were experimentally investigated in this study. For this purpose, 30 three-layer CLT panels were produced considering different configurations in terms of wood species, material properties, and layer arrangements. Monotonic lateral loading tests were performed to simulate the effects of lateral forces, typically induced by seismic actions. The modal parameters of the CLT panels in both the undamaged and damaged states were obtained through ambient vibration tests conducted before and after the monotonic loading tests. The Enhanced Frequency Domain Decomposition (EFDD) method was used to identify the modal parameters of specimens. The monotonic loading and ambient vibration tests revealed that structural damage considerably affected the modal parameters of the CLT panels, leading to a reduction in stiffness, and alterations in their dynamic behavior. After damage, the natural frequencies of the CLT panels decreased significantly, with maximum reductions of 67.29% in the first mode and 35.98% in the second mode. Spruce panels generally exhibited more consistent responses, whereas larger variations in vibrational response were observed for Alder and Hybrid panels. The results not only emphasized the importance of selecting appropriate wood species and layer configurations for CLT panels, but also showed that mechanical connection behavior could significantly influence the structural response.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lignin paradox: selective property enhancement in particleboard","authors":"Jozef Martinka,&nbsp;Charalampos Lykidis,&nbsp;Viktor Wallisch,&nbsp;Peter Rantuch,&nbsp;Tomáš Štefko,&nbsp;Igor Wachter,&nbsp;George I. Mantanis","doi":"10.1007/s00107-026-02476-4","DOIUrl":"10.1007/s00107-026-02476-4","url":null,"abstract":"<div><p>This study investigates how additional lignin powder affects the mechanical performance and fire behaviour of particleboard (PB). Particleboards were manufactured from an industrial wood particle mixture bonded with phenol–formaldehyde (PF) resin (10 wt% constant content) using hot pressing at 7.8 MPa and 210 °C for a total pressing time of 4 min (press time factor was 15 s·mm^− 1). Three board formulations were produced: control boards without lignin addition (PB-0 L), boards containing 10 wt% added lignin powder (PB-10 L), and boards containing 20 wt% added lignin powder (PB-20 L). Fire performance was evaluated using a cone calorimeter under a heat flux of 50 kW·m⁻². In addition, artificial neural network (ANN) models were developed to predict the carbon monoxide release rate (CORR) and smoke production rate (SPR) based on selected cone calorimeter parameters. The results demonstrate that the incorporation of 20 wt% lignin powder significantly improves fire performance, leading to an almost threefold reduction in total carbon monoxide production, from 735 to 250 g·m⁻². Simultaneously, the modulus of elasticity increased substantially, from 1855 to 2639 N·mm⁻². Conversely, the addition of lignin negatively affected the internal bond strength, which decreased from 0.48 to 0.25 N·mm⁻². The developed ANN models exhibited high predictive accuracy, with normalized root mean square errors below 6% for CORR and approximately 2% for SPR. These findings indicate that lignin powder has strong potential as a sustainable additive for enhancing the fire performance and stiffness of particleboard, although optimization is required to mitigate its adverse effects on internal bonding.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00107-026-02476-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of high-quality bio-based composites via incorporation of polyvinyl alcohol into thermally treated wood","authors":"Jingjing Du,&nbsp;Mingbo Gao,&nbsp;Jun Jiang","doi":"10.1007/s00107-026-02467-5","DOIUrl":"10.1007/s00107-026-02467-5","url":null,"abstract":"<div><p>Thermally modified wood has long been valued for its superior dimensional stability and decay resistance, but its structural applications remain severely constrained by the unavoidable mechanical deterioration caused by high-temperature treatment. To address this long-standing issue, we developed a combined modification approach that couples 200°C thermal treatment with vacuum impregnation of biodegradable polyvinyl alcohol (PVA) using southern pine sapwood as the raw material. Our results show that thermal modification creates abundant microcracks and increases wood porosity, which effectively overcomes the poor penetration of high-molecular-weight PVA into intact wood cell walls. When using the optimal 10 wt.% PVA solution, the prepared composite achieves 53.2% higher flexural strength and 42.0% higher impact toughness than pure thermally modified wood, and its 24-h water absorption is reduced by 14.2%. This performance improvement is attributed to three synergistic effects: PVA filling internal voids, forming hydrogen bonds with cell wall polymers, and dissipating fracture energy through fibril pull-out during loading. This simple and eco-friendly method provides a practical pathway for the high-value utilization of wood resources and the production of sustainable bio-based materials.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ripsawing of thermally treated southern beech: influence of process parameters on cutting forces and surface roughness","authors":"Alfredo Aguilera,&nbsp;Maximilian Wentzel,&nbsp;Eduardo Diez","doi":"10.1007/s00107-026-02471-9","DOIUrl":"10.1007/s00107-026-02471-9","url":null,"abstract":"<div><p>Thermal modification is widely used to improve wood’s dimensional stability and durability, but it also alters its mechanical properties—and with them, its machinability. This study investigates how thermal treatment intensity and machining mode (climb vs. conventional cutting) affect cutting forces and surface roughness in ripsawing of southern beech (<i>Nothofagus alpina</i>). Three material conditions were compared: untreated control, Treatment 1 (170 °C), and Treatment 2 (190 °C). A full factorial design including override and mean uncut chip thickness as factors was analysed using multifactorial ANOVA, with density and moisture content examined through correlation analysis. Thermal treatment significantly reduced both mean and maximum cutting forces, with T2 showing peak force reductions of up to 30% compared to the control. Mean uncut chip thickness emerged as the strongest predictor for both forces and roughness. Although machining mode showed a statistically significant effect on force magnitude, the practical difference was small (approximately 2.5 N), and its influence on surface quality was more decisive: climb cutting produced approximately 1 μm lower arithmetic average surface roughness (Ra) than conventional cutting. Override also played a significant role, with 10 mm minimising cutting forces and 15 mm increasing surface roughness. Moisture content showed no significant correlation with forces nor with roughness, confirming its negligible influence within the studied range. Density and thermal treatment were the key factors governing cutting forces, whereas cutting mode and mean uncut chip thickness primarily determined surface finish. These findings confirm that thermal modification enhances machinability by reducing cutting resistance, while climb cutting improves surface roughness without additional mechanical load—particularly when combined with a 10 mm override. The results offer a predictive basis for optimising industrial milling of thermally modified wood.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-destructive detection of degradation in urea formaldehyde structural wood adhesive bonds by NMR relaxometry","authors":"Philippe Grönquist,&nbsp;Maximilian Mehl,&nbsp;Maximilian Henning,&nbsp;Sabina Haber-Pohlmeier,&nbsp;Gerhard Dill-Langer,&nbsp;Jürgen Frick","doi":"10.1007/s00107-026-02468-4","DOIUrl":"10.1007/s00107-026-02468-4","url":null,"abstract":"<div><p>Low-field nuclear magnetic resonance (NMR) relaxometry was examined as a non-destructive method for assessing degradation of urea-formaldehyde (UF) bondlines of laminated timber members. The study shows that UF adhesive bondlines result in distinct NMR signals between freshly bonded and harshly artificially aged bondlines (A5 treatment according to EN 302-1). Mechanical tensile shear tests showed strength reductions of up to 71%, and a correlation coefficient of <span>(r=0.96)</span> between NMR amplitude ratios and bondline strength was found. This implies that NMR relaxometry could have the potential to detect UF adhesive degradation in laminated timber. As new non-destructive and in-situ testing method options, portable NMR devices could help determine the residual service life of structural glued timber members or support their reuse after service life.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00107-026-02468-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bio-oils as coatings for mitigating deterioration of wood from artificial weathering","authors":"Dylan Willard,&nbsp;Lili Cai,&nbsp;Armando G. McDonald","doi":"10.1007/s00107-026-02470-w","DOIUrl":"10.1007/s00107-026-02470-w","url":null,"abstract":"<div><p>Wood weathering is an abiotic deterioration process influenced by environmental factors, including but not limited to UV radiation, oxidation, and moisture, which significantly impacts wood’s structural integrity, dimensional stability, surface quality, and aesthetic. This study investigates the performance of bio-based oils, including seed oils, pyrolysis bio-oils, and pine tars, as a sustainable renewable solution to mitigate damage to wood caused by weathering. Enhancing the performance of pyrolysis oils and pine tars as wood coatings through the addition of linseed oil was also investigated. Wood samples treated with various organic coatings were subjected to artificial weathering for 8 weeks and incrementally tested for changes in mass, hydrophobicity, color, and surface chemistry. Bio-oil coatings were analyzed by gas chromatography/mass spectrometry (GC/MS) to evaluate their composition and draw conclusions on how it impacted their performance as coatings. Linseed oil showed the strongest surface retention and the longest lasting water repellency. All pyrolysis oil treated surfaces became hydrophilic by week 2, both pine tar treated surfaces became hydrophilic by week 4, and treatments containing added linseed oil retained measurable water repellency until week 6. Linseed oil alone retained measurable water repellency longer than any other treatment. After 8 weeks, total oven dry mass loss was 3.81% for the uncoated control, 3.90% for linseed oil, and 4.75–5.22% for the pyrolysis oil treatments. Linseed oil also resulted in the lowest total color change among the coatings tested (ΔE = 13.1 ± 2.3), while pyrolysis oils alone showed substantially greater color change. Results from this study provided insights into optimizing bio-based coatings for sustainable wood preservation.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00107-026-02470-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient anti-mildew modification of bamboo based on in situ polymerization of acrylic acid","authors":"Qin Lai,&nbsp;Wenting Li,&nbsp;Jiewen Li,&nbsp;Zhengda Wu,&nbsp;Chuanshuang Hu,&nbsp;Yonghui Zhou,&nbsp;Xiuyi Lin,&nbsp;Jiangtao Xu,&nbsp;Weiwei Zhang","doi":"10.1007/s00107-026-02461-x","DOIUrl":"10.1007/s00107-026-02461-x","url":null,"abstract":"<div><p>Bamboo is an important renewable resource in China, but it is susceptible to mildew during storage, processing, transportation, and use. Our previous studies have shown that in situ polymerization of N-hydroxymethylacrylamide (NMA) in bamboo produced a physical coverage-chemical bonding structure on the surface of starch and other nutrients, which dramatically reduced the reagent dosage required for complete mould prevention. However, the anti-mildew efficiency of NMA remains significantly lower than that of organic fungicides, whose concentration is usually below 1%. In this study we selected acrylic acid (AA) to modify bamboo because the COOH groups in PAA can only react with OH groups of nutrients, thus the reaction efficiency of AA is expected to be higher than NMA. Mould resistance tests showed that modified bamboo at AA concentration of 1% and above exhibited no visible mould growth. Characterization and analysis of AA-modified bamboo by FTIR, XPS, and SEM demonstrated that PAA not only existed in the cell walls but also formed a nano-sized coating layer on the surface of the cell cavities and starch granules. Studies on model substances confirmed that this structure could prevent nutrient uptake by fungi, thus achieving mildew prevention. The low monomer concentration required for this modification, along with its simple operation, provides an efficient and economical strategy for bamboo mildew prevention.</p></div>","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":"84 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2026-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}