Journal of Forest Science, 2024 (vol. 70), issue 10
Characteristics of the workplace of harvester operators in PolandOriginal Paper
Dominika Gaj-Gielarowiec, Karol Gielarowiec, Grzegorz Szewczyk, Pawe³ Tylek
J. For. Sci., 2024, 70(10):501-511 | DOI: 10.17221/49/2024-JFS 
The objective of the presented research was to create an average image of a harvester operator in Poland and to identify factors influencing the degree of mental workload. We used a survey of environmental assessments of workload. The creation of an electronic survey and the support of a company that indirectly employs operators (State Forests) made it possible to reach a large group of surveyed people. The respondents indicated the occurrence of ailments typical of sedentary work at the researched workstation. These included mainly monotony, back pain and numbness in the upper limbs. Stress at work was felt by the majority of respondents; hence...
Mechanical and physical properties of three Eucalyptus spp. clones planted in ThailandOriginal Paper
Trairat Neimsuwan, Kitipong Tangkit, Chakrit Na Takuathung, Nopparat Kaakkurivaara, Ponthep Meunpong, Narinthorn Jumwong, Pattama Sangvisitpirom, Tomi Kaakkurivaara
J. For. Sci., 2024, 70(10):512-528 | DOI: 10.17221/34/2024-JFS
Eucalyptus plantations are an important source of raw materials for the Thai forest products industry. Despite its economic value, only a few noncomprehensive papers have been published about the wood properties and fungal susceptibility of eucalyptus. Our study covered the most commonly used commercial eucalyptus clones with a wide variety of sizes from eastern Thailand. We assumed that the properties of the clones would differ based on the tree sizes. The objectives of this study were to determine the effects of diameter at breast height (DBH), size, and clone type on wood properties and mould susceptibility. The optimal usage of each log...
Economic parameters of the natural forest regeneration in changing conditions – A case studyOriginal Paper
Stanislav Novotný, Josef Gallo, Vilém Podrázský
J. For. Sci., 2024, 70(10):529-538 | DOI: 10.17221/56/2024-JFS
Natural regeneration is a crucial factor in improving the economy of forest estates. The presented study analysed the economic parameters of three different approaches to forest regeneration: (i) artificial regeneration with Norway spruce, (ii) a 25% admixture of soil-improving and stabilising species (SSTS), and (iii) natural regeneration. The expenses for these specific operations related to individual regeneration methods were derived. These variants were investigated before the bark beetle calamity (2014) and after the outbreak (2023) for management sets (MS) 531, 551, 571, and 591, i.e. for acidic, nutrient-rich, gleyed, and...
Stand structural analyses of grey poplar (Populus × canescens) stands focused on the expected volume in HungaryShort Communication
Tamás Ábri, Zsolt Keserû, Veronika Honfy, Attila Borovics, Károly Rédei
J. For. Sci., 2024, 70(10):539-544 | DOI: 10.17221/53/2024-JFS
Grey poplar (Populus × canescens) is a natural hybrid of white poplar (Populus alba L.) and Eurasian aspen (Populus tremula L.). It could play a significant role in the afforestation of marginal sites which stretch out on ever more areas due to the negative effects of local climate change. Based on stand structure analyses of grey poplar stands grown on the sandy sites of Hungary, the following relations were found: There is a strong relationship between tree height and stand volume (R2 = 0.7256), as well as between basal area per ha and stand volume (R2 = 0.9158). There is a moderate relationship...