Template-Type: ReDIF-Article 1.0 Author-Name: Mesut Tandoğan Author-Workplace-Name: Marmara Forestry Research Institute, Istanbul, Türkiye Author-Name: Mehmet Özdemir Author-Workplace-Name: Marmara Forestry Research Institute, Istanbul, Türkiye Author-Name: Vedat Aslan Author-Workplace-Name: Marmara Forestry Research Institute, Istanbul, Türkiye Author-Name: Ahmet F. Haciyusufoğlu Author-Workplace-Name: Aydin Vocational School, Adnan Menderes University, Aydin, Türkiye Author-Name: Ali Ayhan Kul Author-Workplace-Name: Marmara Forestry Research Institute, Istanbul, Türkiye Author-Name: Emine Şen Author-Workplace-Name: School of Pharmacy, Altinbaş University, Istanbul, Türkiye Author-Name: Kaan Polatoğlu Author-Workplace-Name: School of Pharmacy, Altinbaş University, Istanbul, Türkiye Author-Name: Duygu Sultan Oran Author-Workplace-Name: Experimental Research and Skills Development Center, Bağcilar Training and Research Hospital, Istanbul, Türkiye Author-Name: Feyza Aricioğlu Author-Workplace-Name: School of Pharmacy, Marmara University, Istanbul, Türkiye Author-Name: İlhami Turan Author-Workplace-Name: Western Black Sea Forestry Research Institute, Bolu, Türkiye Author-Name: Salih Atmaca Author-Workplace-Name: Forest Management Directorate, Bahçeköy, Istanbul, Türkiye Title: Development of sessile oak [Quercus petraea (Matt.) Liebl.] seed coating material against rodents and evaluation of its performance on seed germination and emergence Abstract: Protecting sessile oak [Quercus petraea (Matt.) Liebl.] seeds from rodents is crucial to ensure successful germination and emergence in activities such as artificial regeneration, afforestation, and seedling production. This study examined the effects of 12 natural or nature-identical substances, believed to have repellent properties, on the germination, emergence, and survival of sessile oak acorns under both laboratory and field conditions. Acorns were coated using a diatomaceous clay-based pellet system, and a Y-maze experiment was conducted to evaluate rodent behaviour. As a result of the research, among the tested substances, Ferulago confusa and Foeniculum vulgare were recommended as rodent repellents due to their success in laboratory and field trials. Diesel fuel + hair, a conventional repellent, showed poor performance and is not recommended. This study underscores the potential efficacy of natural or nature-identical coatings for protecting seeds from pests in forestry applications. Keywords: acorn, afforestation, repellent, seed coating, sowing Journal: Journal of Forest Science Pages: 417-425 Volume: 71 Issue: 9 Year: 2025 DOI: 10.17221/42/2025-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/42/2025-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202509-0001.txt Handle: RePEc:caa:jnljfs:v:71:y:2025:i:9:id:42-2025-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Wenceslao Santiago-García Author-Workplace-Name: Postgraduate Division, Institute of Environmental Studies, University of the Sierra Juárez, Ixtlán de Juárez, Mexico Author-Name: Jonathan Ramírez-Arce Author-Workplace-Name: Independent researcher in forest engineering, Ixtlán de Juárez, Mexico Author-Name: Agustín Ramírez-Martínez Author-Workplace-Name: Santa María Jaltianguis Forest Technical Directorate, Ixtlán de Juárez, Mexico Author-Name: Adan Nava-Nava Author-Workplace-Name: Agropecuaria Santa Genoveva S.A.P.I. de C.V., San Francisco de Campeche, Campeche, Mexico Author-Name: Juan Carlos Guzmán-Santiago Author-Workplace-Name: Postgraduate College, Forest Sciences, Montecillo Campus, Texcoco, Mexico Author-Name: Elías Santiago-García Author-Workplace-Name: Forest Technical Directorate of the Community of Ixtlán de Juárez, Ixtlán de Juárez, Mexico Title: Additive volume-equation systems for Pinus ayacahuite and Pinus douglasiana in temperate forests of the Sierra Norte, Oaxaca, Mexico Abstract: Volume models are essential tools for quantifying timber stocks and optimising forest utilisation. This study aimed to develop additive volume systems based on one- and two-entry simultaneous equations for Pinus ayacahuite Ehrenb. ex Schltdl. and Pinus douglasiana Martínez. Destructive sampling of 55 P. ayacahuite trees and 65 P. douglasiana trees was conducted in the communal forest of Ixtlán de Juárez, Oaxaca, southern Mexico. The additive systems were fitted using non-linear seemingly unrelated regression to estimate tree-volume components: stem and branch volumes, with whole-tree volume being the sum of both. The systems were evaluated using the relative ranking method, considering statistical indicators of accuracy, variability, and relative errors. Additionally, the predictive capacity of the equations was assessed through linear regression between observed and predicted values for each volume component, and the biological consistency was verified. The results indicate that two-entry additive systems provide greater accuracy in estimating stem, branch, and whole-tree volumes for both species. These equations are based on the Schumacher-Hall model, and their recommended range of application for both species is for diameter at breast height (DBH) between 9 cm and 75 cm, and for total height (H) between 9 m and 34 m. Therefore, their application is recommended for forest inventories and the planning of sustainable forest management. Keywords: forest inventory, forestry, regression, simultaneous fitting, volume tables, whole-tree volume Journal: Journal of Forest Science Pages: 441-455 Volume: 71 Issue: 9 Year: 2025 DOI: 10.17221/49/2025-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/49/2025-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202509-0002.txt Handle: RePEc:caa:jnljfs:v:71:y:2025:i:9:id:49-2025-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Pavel Horák Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Petra Jablonická Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Robert Knott Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Title: Potential of Thuja plicata and Chamaecyparis lawsoniana in the context of global climate change in the Czech Republic Abstract: The introduction of non-native tree species is considered a potential adaptation strategy to global climate change (GCC) in the forestry sector. As some of the most widespread native species are undergoing stand disintegration due to both abiotic and biotic stressors, the search for alternative species becomes essential. These species can overwhelm native species with both production potential and adaptation to a changing climate. The research focused on climate-growth relationships of two introduced species of the Cupressaceae family, western redcedar (Thuja plicata Donn ex D. Don) and Lawson's cypress [Chamaecyparis lawsoniana (A. Murray) Parl.], in comparison with the native Scots pine (Pinus sylvestris L.) in the northeast part of the Czech Republic. The constructed tree ring chronologies were used as a basis for dendroclimatological analyses: basal area increment (BAI), linear growth trends, Pearson's correlations between climate variables and growth, resilience indices and others. Among the analysed species, Thuja plicata revealed the highest BAI and the most positive growth trend in the last 35 years, with values 2-3 times higher. The Chamaecyparis lawsoniana exhibited the highest negative correlation with mean summer temperatures. In general, Pinus sylvestris showed the highest correlations with precipitation. No clear pattern in resilience indices has been observed. Among the two introduced tree species examined, Thuja plicata emerges as a particularly promising candidate for future application in Central European conditions under ongoing GCC. Keywords: climate signal, dendrochronology, introduced tree species, tree ring analysis Journal: Journal of Forest Science Pages: 426-440 Volume: 71 Issue: 9 Year: 2025 DOI: 10.17221/51/2025-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/51/2025-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202509-0003.txt Handle: RePEc:caa:jnljfs:v:71:y:2025:i:9:id:51-2025-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Martin Cempírek Author-Workplace-Name: Department of Forest and Wood Product Economics and Policy, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Petra Hlaváčková Author-Workplace-Name: Department of Forest and Wood Product Economics and Policy, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Dalibor Šafařík Author-Workplace-Name: Department of Forest and Wood Product Economics and Policy, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Title: Criminal tax offences in the Czech timber trade: A judicial practice analysis Abstract: This article presents a doctrinal legal analysis of judicial practice concerning criminal tax offences in the Czech timber trade, with a primary focus on VAT fraud. Court decisions were examined thematically to identify key categories of fraud schemes, recurring evidentiary challenges, and patterns of judicial reasoning. Administrative and regulatory frameworks, such as the EU Timber Regulation (EUTR), have played only a marginal role in Czech judicial practice, with a single decision explicitly referring to the EUTR. The findings highlight how courts rely on indicators such as fictitious supply chains, economically irrational transactions, and incomplete documentation to establish fraudulent intent. The study contributes to a better understanding of judicial reasoning in tax fraud cases and offers evidence-based recommendations for strengthening enforcement practice. The article focuses on Criminal Tax Law, i.e. examples of tax fraud in the timber trade that were not dealt with by the tax authorities as administrative offences but were assessed as criminal tax offences falling within the jurisdiction of criminal courts. Criminal Tax Law is a subfield of Czech Tax Law dealing with criminal activity in the area of tax and fee administration. (Lichnovský et al. 2020). The article contains all court decisions in the field of Criminal Tax Law dealing with the issue of timber trade. The article deals only with the criminal law aspects of tax law. No other court decisions were found in the Automated Legal Information System (ASPI). The ASPI legal information system contains only one court decision relating to the EUTR Regulation, which is cited below. Criminal cases in the field of forestry and timber industry constitute only a small part of the entire criminal tax law. In terms of the method of committing the criminal activity (issuing fictitious invoices, fictitious deliveries of goods), these are common frauds common to all economic activities. Keywords: forest management, illegal logging, legislation, tax fraud, wood processing Journal: Journal of Forest Science Pages: 456-467 Volume: 71 Issue: 9 Year: 2025 DOI: 10.17221/36/2025-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/36/2025-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202509-0004.txt Handle: RePEc:caa:jnljfs:v:71:y:2025:i:9:id:36-2025-JFS