Journal of Forest Science, 2025 (vol. 71), issue 2
Will cultural and regulatory forest services provide enough balance to provisioning services in forest enterprise portfolios in future? Marketing case studies of selected forest enterprises in SlovakiaOriginal Paper
Alex Bumbera, Daniel Halaj, Iveta Hajdúchová
J. For. Sci., 2025, 71(2):59-71 | DOI: 10.17221/68/2024-JFS 
The study aims to identify the difference between the current and future strategic management of forest ecosystem services (FES) portfolios in public enterprises of Slovakia. The case studies focus on forest enterprises in Ko¹ice, Banská ©tiavnica, Kremnica, and Bratislava, representing the best practice examples of providing cultural services in the country. A marketing decision-making model, Boston Consulting Group (BCG) matrix, was used to analyse each company's current FES portfolio. Content analysis assessed the data collected from interviews with managers of the public forest enterprises. Duncker's forest management approaches classification...
Analysis of selected functional parameters of saw chainsOriginal Paper
Pavel Nevrkla, Lubo¹ Stanìk, Jindøich Neruda
J. For. Sci., 2025, 71(2):72-85 | DOI: 10.17221/64/2024-JFS
Results obtained from the research study focused on the functional parameters of five saw chains tested on a test bench equipped with an electrically driven chain saw brought a number of findings. One of the most important of them is the significant difference between the cutting rates of round and square chains. The cutting rate of square chains R = 27.9 cm2·s–1 is about 12% higher than the cutting rate of round chains. The influence of the chain construction on the chain cutting rate was conclusively demonstrated – the cutting rate of chains with a square profile is higher than the cutting rate of round-profile...
Dynamic parameters of lowering loads at gradual tree fellingOriginal Paper
Tomá¹ Kotek, Jindøich Neruda
J. For. Sci., 2025, 71(2):86-98 | DOI: 10.17221/66/2024-JFS
The lowering of loads at gradual tree felling is the riskiest activity performed by tree climbers. During this activity, great forces emerge and act on the felled tree, while the tree climbers use the tree itself to anchor and secure their stance. This research aims to find out whether certain methods of work or the use of certain rigging for lowering loads exhibit positive features in reducing the forces acting on the anchoring point of the rigging system. The work methodology consists of three operations: (i) the calculation of the coefficient of shear friction for the combination of 4 ropes and 5 lowering devices – altogether...
Potential for monetisation and utilisation of wood raw material from pioneer tree species stands in the Czech RepublicOriginal Paper
Roman Dudík, Petra Palátová, Ale¹ Kùs, David Homolka, Andreas Nikodemus
J. For. Sci., 2025, 71(2):99-111 | DOI: 10.17221/101/2024-JFS
Pioneer tree species in the Czech Republic include birch, alder and aspen. From an economic point of view, birch seems to be the most promising. Greater use of timber from pioneer tree species in higher value-added products is currently limited by the low stocks of birch, alder and aspen in forest stands. A price survey was carried out in the Western Highlands region in the central part of the Czech Republic to obtain basic information on the prices of assortments of pioneer tree species. The prices of five assortments of raw timber were surveyed for the period 2019–2023. Very few of the prices of pioneer tree species were found for assortments...