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Journal articles on the topic 'Timber assortments'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Prka, Marinko, and Ante P. B. Krpan. "Impact of Tending Measures on Assortment Structure of Fellings in Central Croatian Beech Stands." Acta Silvatica et Lignaria Hungarica 6, no. 1 (2010): 171–82. http://dx.doi.org/10.37045/aslh-2010-0015.

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The effects of management of even-aged beech stands on the quality of beech timber assortments by type of cut were investigated in the region of Bjelovar. The research was carried out using Croatian timber standards. Assortment tables were developed separately for thinning and intermediate felling, and separately for regeneration and final felling in accordance with the interventions of management. The average shares of assortments maintained the same ratios by quality classes regardless of the applied standards (HRN or HRN EN). The research identified the problems in production of assortments

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2

Alvites, Cesar, Marco Marchetti, Bruno Lasserre, and Giovanni Santopuoli. "LiDAR as a Tool for Assessing Timber Assortments: A Systematic Literature Review." Remote Sensing 14, no. 18 (2022): 4466. http://dx.doi.org/10.3390/rs14184466.

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Forest ecosystems strongly contribute to the mitigation of climate change impacts through the carbon stored in forests and through harvested wood products, such as sawed wood and furniture, which are obtained from many types of timber assortments. Timber assortments are defined as log sections of specific dimensions (log length and maximum/minimum end diameters), gathered from felled trunks, that have both specific commercial timber utilisation and economic value. However, it is challenging to discriminate and assess timber assortment types, especially within a forest stand before the forest h

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3

Sanz, Blanca, Jukka Malinen, Sanna Sirparanta, et al. "Integrating Detailed Timber Assortments into Airborne Laser Scanning (ALS)-Based Assessments of Logging Recoveries." Forests 12, no. 9 (2021): 1221. http://dx.doi.org/10.3390/f12091221.

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The methodology presented here can assist in making timber markets more efficient when assessing the value of harvestable timber stands and the amounts of timber assortments during the planning of harvesting operations. Information on wood quality and timber assortments is essential for wood valuation and procurement planning as varying wood dimensions and qualities may be utilized and refined in different places, including sawmills, plywood mills, pulp mills, heating plants or combined heat and power plants. We investigate here alternative approaches for generating detailed timber assortments

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4

Petráš, R., J. Mecko, and V. Nociar. "Models of assortment yield tables for poplar clones." Journal of Forest Science 54, No. 5 (2008): 227–33. http://dx.doi.org/10.17221/3/2008-jfs.

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The results of research on the production of raw timber assortments for the stands of poplar clones Robusta and I-214 in Slovakia are presented in this paper. Models of assortment yield tables were constructed, separately for each clone, in dependence on the yield class and stand age. The construction was based on the models of yield tables, stand assortment tables, models of external quality and damage to stems. Robusta clone produces by about 15–20% higher proportions of the highest quality assortments than I-214 clone. I-214 clone produces faster and higher proportions of average- and below

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Alvites, Cesar, Giovanni Santopuoli, Markus Hollaus, et al. "Terrestrial Laser Scanning for Quantifying Timber Assortments from Standing Trees in a Mixed and Multi-Layered Mediterranean Forest." Remote Sensing 13, no. 21 (2021): 4265. http://dx.doi.org/10.3390/rs13214265.

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Timber assortments are some of the most important goods provided by forests worldwide. To quantify the amount and type of timber assortment is strongly important for socio-economic purposes, but also for accurate assessment of the carbon stored in the forest ecosystems, regardless of their main function. Terrestrial laser scanning (TLS) became a promising tool for timber assortment assessment compared to the traditional surveys, allowing reconstructing the tree architecture directly and rapidly. This study aims to introduce an approach for timber assortment assessment using TLS data in a mixed

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6

Батурин, Kirill Baturin, Петровский, Vladislav Petrovskiy, Малинников, and Petr Malinnikov. "The method of bucking whips and accounting of received roundwood." Forestry Engineering Journal 4, no. 3 (2014): 175–83. http://dx.doi.org/10.12737/6285.

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The article is devoted to developing a method of cross-cutting of whips to assortments, using the data set as a percentage of assortment plan or through the diameters of logs, as well as ac-counting technology for volumes of produced roundwood. The use of information technology in the CTL job of bucking whips, allows to take into account the specifics of the produc-tion of enterprise, consumer applications, mi-nimizing wastes of timber production, with an increase in the volume of business output assortments.

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Petráš, R., J. Mecko, and V. Nociar. "Value production of poplar clones." Journal of Forest Science 54, No. 6 (2008): 237–44. http://dx.doi.org/10.17221/12/2008-jfs.

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The results of research on the value production of the stands of poplar clones Robusta and I-214 carried out in Slovakia are presented. Models of value yield tables were constructed separately for each clone. The models simulate gross and net financial yield of wood production in dependence on the site index and age of stand. They were constructed on the basis of the models of assortment yield tables, timber prices according to assortments and the models of own costs of timber felling and processing. The clone I-214 produces a faster and higher proportion of thicker assortments of average and

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8

Danilovic, Milorad, and Damjan Pantic. "Assortment structure in beech coppice stands in Boljevac region." Bulletin of the Faculty of Forestry, no. 89 (2004): 91–102. http://dx.doi.org/10.2298/gsf0489091d.

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Assortment structure in beech coppice stands was studied in the area of Boljevac. Assortment structure was evaluated according to the articles of the valid standard (JUS). The assortments represented in the assortment structure, based on the stemwood quality are: Logs for matches, sawlogs I II and III classes, mine timber, technical roundwood, pulpwood, wood for excelsior and fuelwood, I and II classes. The results of the analyses show that the value assortment structure (sum of the values of assortments produced from one tree) grows significantly with the increase of tree diameter and this de

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9

Sikora, Adam Tomasz, and Joanna Ukalska. "Timber prices after natural disasters in the Forest District of Węgierska Górka." Forest Research Papers 75, no. 2 (2014): 201–12. http://dx.doi.org/10.2478/frp-2014-0019.

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Abstract The aim of the study was to determine the impact of increased timber logging after natural disasters on timber assortments, unit prices, as well as average prices of timber spruce and total timber. The net sales prices of the years 2004-2010, available from the database of the State Forests Information System (SFIS) for the Forest District of Węgierska Górka, were analysed and compared to the prices of selected forest districts within the Regional Directorate of State Forests in Cracow (RDSF). The forest districts were classified based on the volume of logged timber leading to a separ

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10

Sikora, Adam Tomasz, and Joanna Ukalska. "Timber prices after natural disasters in the Forest District of Węgierska Górka." Forest Research Papers 75 (2) (June 1, 2014): 201–12. https://doi.org/10.2478/frp-2014-0019.

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The aim of the study was to determine the impact of increased timber logging after natural disasters on timber assortments, unit prices, as well as average prices of timber spruce and total timber. The net sales prices of the years 2004–2010, available from the database of the State Forests Information System (SFIS) for the Forest District of Węgierska Górka, were analysed and compared to the prices of selected forest districts within the Regional Directorate of State Forests in Cracow (RDSF). The forest districts were classified based on the volume of logged timber leading to a s

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11

Gál, J., and I. E. Bella. "Evaluation of stem taper functions for estimating log volume assortments." Forestry Chronicle 71, no. 6 (1995): 743–46. http://dx.doi.org/10.5558/tfc71743-6.

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Using three recently fitted taper functions, this note evaluates the accuracy and precision of log volume assortment estimates for five major Saskatchewan timber species. All three functions showed similarly good performance for the five species examined. The results indicated that the magnitude of both absolute bias and standard error of estimate depended on the average volume of the particular log assortments; larger average volumes had greater bias and standard errors of estimate. The coefficients of variation were inversely related to average log assortment volume, with the smallest assort

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12

Miklašēvičs, Ziedonis, Natālija Burnēviča, Jānis Iejavs, and Kaspars Šķēle. "EVALUATION OF ASPEN (POPULUS TREMULA) WOOD STRUCTURE INFECTED BY FUNGI (PHELLINUS TREMULAE) AND OPPORTUNITIES FOR WIDER USE OF TIMBER IN STRUCTURAL ELEMENTS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 22, 2024): 242–50. http://dx.doi.org/10.17770/etr2024vol1.7944.

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The external characteristics of aspen (Populus tremula) tree give the only clue to the quality of logs, packing case timber, pulpwood and other roundwood assortments obtained in harvesting. When the tree is bucked into roundwood assortments, the cross sections at the butt and top ends of these assortments may provide additional indicators of the quality such as heart colouring, wetwood, heartwood hard rot and heartwood soft wood. Thus, it becomes important when correlating the occurrence of these imperfections with the quality of sawn timber that is produced from the aspen logs and packing cas

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13

Musienko, Sergiy, Volodymyr Luk’yanets, Oksana Tarnopylska, Oleksii Kobets, and Vira Babenko. "Merchantability and assortment structure of pine stands affected by root rot in the Volyn Polissya region, Ukraine." Central European Forestry Journal 64, no. 2 (2018): 96–103. http://dx.doi.org/10.1515/forj-2017-0034.

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Abstract The study was conducted in the forests of the State Enterprise “Gorodotske Forest Economy”, located in the Manevytsko-Volodymyretsky region of the Volyn Polissya in Ukraine. The annosum root rot (Heterobasidion annosum (Fr.) Bref.) impact on timber merchantability was investigated. The comparison of the cost estimation of stands assortment structure was carried out on the basis of the market value at current selling prices of the State Enterprise “Gorodotske Forest Economy” of the Volyn Regional Department of Forestry and Hunting as of 2017, taking into account the quality and the ave

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14

Gejdoš, Miloš, and Tomáš Gergeľ. "Case study of qualitative sorting of raw wood assortments in the conditions of a forestry enterprise in Slovakia." Central European Forestry Journal 68, no. 4 (2022): 232–37. http://dx.doi.org/10.2478/forj-2022-0006.

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Abstract Valuation of timber growing in commercial forests is a key issue for forest owners, forest enterprises, but also a starting point for long-term planning in the field of forest management. The subjective approach of the evaluator can, to a large extent, lead to inconsistencies in the area of wood qualitative evaluation. This paper aimed to perform an objective qualitative analysis on a selected set of 179 logs of hardwood raw-wood assortments in a selected Forest enterprise in Slovakia. Qualitative analysis, which was performed by the Technical Conditions used by Lesy SR, š.p. confirms

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15

Hou, Zhengyang, Qing Xu, Jari Vauhkonen, Matti Maltamo, and Timo Tokola. "Species-specific combination and calibration between area-based and tree-based diameter distributions using airborne laser scanning." Canadian Journal of Forest Research 46, no. 6 (2016): 753–65. http://dx.doi.org/10.1139/cjfr-2016-0032.

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The planning of wood procurement requires reliable information about the species-specific timber assortments on which the economic value of a production forest depends. The timber assortments refer to the stem volumes of the sawlog and pulpwood fractions, specified in terms of both timber quality and allowable log dimensions, e.g., the stem diameter at breast height (dbh). We propose here an airborne laser scanning based calibration framework for generating species-specific dbh distributions that combines the area-based approach (ABA) and individual-tree detection (ITD), two established and in

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16

Lemm, Renato, Clemens Blattert, Stefan Holm, Leo Bont, and Oliver Thees. "Improving Economic Management Decisions in Forestry with the SorSim Assortment Model." Croatian journal of forest engineering 41, no. 1 (2019): 71–83. http://dx.doi.org/10.5552/crojfe.2020.586.

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The sustainable supply of timber is one of the most important forest ecosystem services and a decisive factor determining the long-term profitability of forest enterprises. If timber production is to be economically viable, there must always be a way to analyse forest stands and trees felled for exploitation with regard to the wood assortments they contain. Only then can the expected timber yields, achieved by various silvicultural strategies or actions and different sorting options, be quantified with sufficient accuracy. The SorSim assortment simulator was developed for forest practitioners

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17

Padari, Allar, and Ahto Kangur. "Validation of saw log and technological wood assortment recovery and reduction predictions based on cut-to-length harvester data." Forestry Studies 79, no. 1 (2023): 66–89. http://dx.doi.org/10.2478/fsmu-2023-0013.

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Abstract In this study, assortment yields were studied for Scots pine, Norway spruce, birch spp. (silver and downy birch), European aspen, black alder, and grey alder stand elements. Theoretical assortment yields were calculated using the Ozolinš’ stem taper curve, incorporating tree diameters and heights. The modelled results were compared with actual yields provided by the State Forest Management Centre. During the study, differences in timber assortments and firewood yields were modelled compared to actual data. Changes in wood assortment yields, compared with undamaged and straight trees,

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18

Petráš, R., and J. Mecko. "Analysis of the production potential of raw wood in the forests of Slovakia." Journal of Forest Science 54, No. 7 (2008): 314–20. http://dx.doi.org/10.17221/10/2008-jfs.

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Production of raw wood material and its regulation has a great ecological and economic importance in every country. The aim of the paper is to analyze the prospective production of raw wood with respect to the expected basic tree species composition and assortment structure on an example of long-term development of selected indicators of forest condition in Slovakia. For this analysis we used data on the area, growing stock and planned decennial timber felling in the forests of Slovakia in 1980, 1996 and 2003. The production potential of forests was evaluated on the basis of the annual perspec

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19

Guzhva, Igor, and Yevhen Ivanov. "Topical issues of providing raw materials to woodworking industry enterprises in Ukraine." Economics, ecology, socium 2, no. 2 (2018): 12–19. http://dx.doi.org/10.31520/2616-7107/2018.2.2-2.

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Introduction. Woodworking industry splits into two main sectors – primary and deep processing of wood, which fundamentally differ from each other. While primary wood processing requires common timber assortments (usually coniferous) production of deep processing products – plywood, particleboards and fiberboards – needs valuable and scarce assortments of hardwood like alder or birch. Problems with access to valuable raw materials remain one of the key factors in the development of the Ukrainian woodworking industry for many years. Aim and tasks. The aim of the article is to identify main

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20

Suchomel, J., M. Gejdoš, L. Ambrušová, and R. Šulek. "Analysis of price changes of selected roundwood assortments in some Central Europe countries." Journal of Forest Science 58, No. 11 (2012): 483–91. http://dx.doi.org/10.17221/98/2011-jfs.

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&nbsp; The paper deals with the analysis of price changes of roundwood (spruce, fir and beech sawlog, fuelwood) and energy wood in Slovakia, Czech Republic and Austria during the period of 2008&ndash;+September 2011. At the beginning of the article, the authors identify the major factors influencing timber price trends such as legislation regarding technical standards for the quality grading of round wood, global economic recession, incidental felling and political influence. Consequently, detailed analysis of timber price changes in selected European counties is provided by means of l

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21

Petráš, R., J. Mecko, and V. Nociar. "Quality of wood in the stands of poplar clones." Journal of Forest Science 54, No. 1 (2008): 9–16. http://dx.doi.org/10.17221/791-jfs.

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The results obtained in research on the quality of raw timber by means of the structure of assortments for the stands of poplar clones Robusta and I-214 are presented in the paper. Models for an estimation of the structure of basic assortments of poplar stands were constructed separately for each clone in dependence on mean diameter, quality of stems, and damage to stems in the stand. The clone Robusta has higher proportions of higher-quality assortments than the clone I-214. The accuracy of models was determined on empirical material. It was confirmed by statistical tests that the models did

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22

Miklašēvičs, Ziedonis. "OPPORTUNITIES OF IMPROVING HARVESTING TECHNOLOGIES FOR WIDER USE OF SCOTS PINE (PINUS SYLVESTRIS L.) IN CONSTRUCTION ELEMENTS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 22, 2024): 251–56. http://dx.doi.org/10.17770/etr2024vol1.7943.

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Although Pinus sylvestris has a wide distribution throughout Europe, there are lack of scientifically approved information related to the sapwood timber strength parameters impregnated with natural resins comparing to the strenth parameters of non-resinous wood and industrially impregnated roundwood assortments using as the elements of wooden constructions such as wood poles for power lines. The main goal of the study is to work out the Pinus sylvestris stems which were previously treated using resin tapping technologies and harvested in final felling sites, timber strength parameters dependin

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23

Dubenok, Nikolay, Aleksandr Lebedev, Vladimir Gostev, and Dar'ya Gosteva. "Material assessment of Pine trunks (Pinus sylvestris L.) in Kostroma region." Forestry Engineering Journal 15, no. 2 (2025): 224–46. https://doi.org/10.34220/issn.2222-7962/2025.2/14.

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The main historical stages in the development of forest inventory standards for evaluating the timber assort-ment structure of forest stands in the Kostroma region have been examined. A review of modern domestic and interna-tional literature indicates that the most relevant method for timber assortment assessment is the use of stem taper equations. These equations account for regional characteristics in the formation of trunks of primary forest-forming species and reliably predict changes in diameter along the height of the tree, enabling a qualitative evaluation of the material structure and

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Smirnov, Mikhail, and Yuri Andrianov. "Technologies of timber assortments hauling by tractor-trailer train squads." Journal of Applied Engineering Science 16, no. 2 (2018): 254–57. http://dx.doi.org/10.5937/jaes16-16469.

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Gagliardi, Kayla, Simon Ackerman, and Pierre Ackerman. "Multi-Product Forwarder-Based Timber Extraction." Croatian journal of forest engineering 41, no. 2 (2020): 231–42. http://dx.doi.org/10.5552/crojfe.2020.736.

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Accurate predictions in forest operations can be used towards effective planning, costing, and maximizing the productivity of machines in mechanised cut-to-length (CTL) harvesting. There is a general and substantial gap in forwarder productivity data available for pine sawtimber in South Africa at present, and as the number of product assortments being harvested increase there is a need for more work to quantify the effects of extracting products of different dimensions. The aim of this study was to calculate the time consumption and productivity of two models of Ponsse forwarders (15 t and 20

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26

WIERUSZEWSKI, MAREK, RADOSŁAW MIRSKI, JAKUB KAWALERCZYK, and ADRIAN TROCIŃSKI. "Influence of qualitative and dimensional classification of Pinewood raw material as an efficiency indicator in the production of selected timber assortments." Annals of WULS, Forestry and Wood Technology 107 (September 30, 2019): 72–79. http://dx.doi.org/10.5604/01.3001.0013.7638.

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Wood processing plants in Poland are recipients of more than 50% of round wood, which is delivered by the State Forests National Forest Holding. Thus playing a crucial role in the technological processing of raw material for all other wood industry branches. Each group of recipients has individual needs and expectations concerning the quality of the raw material such as, its type and the size of the cross-sections of the assortment used for further production. Therefore, it is economically justified for small production plants to abandon the production of narrow groups of assortments, which us

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Keca, Ljiljana, and Aleksandar Markovic. "Market potentials for forestry sector development in the Rasina district." Bulletin of the Faculty of Forestry, no. 118 (2018): 47–62. http://dx.doi.org/10.2298/gsf1818047k.

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The idea of this paper is to show the placement of forestry products on the market, as well as future opportunities for the development of the forestry sector in terms of goods exchange within the FE ?Rasina? Krusevac, which is part of PE ?Srbijasume?. In particular, the sales of wood by auction are also shown. The aim of this research is to determine the realization of the exchange of timber assortments within the FE ?Rasina? Krusevac through an analysis of the collected data. The purpose of this research is to define and determine the rules of exchange realization, as well as to give explana

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Rohanová, Alena. "ANALYSIS OF SOUND SPEED IN LONGITUDINAL DIRECTION AT REFERENCE MOISTURE CONTENT (w = 12 %) IN SAWMILL ASSORTMENTS (FAGUS SYLVATICA, L.)." Akustika, VOLUME 37 (December 15, 2020): 45–50. http://dx.doi.org/10.36336/akustika20203745.

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This paper explores the analysis of sound speeds in the longitudinal direction and their reduction to the reference moisture content w = 12 %. The sound speed cw was determined with Sylvatest Duo device. Moisture content of beech sawmill assortments (round timber: N = 16, logs: N = 2 × 16, structural boards: N = 54) in the range of 12 – 72 % was measured. For the analysis purposes, the sound speed was converted to reference conditions (c12, uref = 12%). A second-degree polynomial (parabola) with a regression equation of the form: c// = 5649 - 27,371 × w + 0.0735 × w2 was used to convert cw to

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29

Honsa, Jan, and Jindřich Neruda. "Analysis of factors of the quality of logs produced by harvesters." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 57, no. 5 (2009): 131–40. http://dx.doi.org/10.11118/actaun200957050131.

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Increasing demands of the present society lead to an effort to rationalize logging operations in forest management. Therefore, multi-function logging machines are increasingly used in the course of timber harvesting. Nevertheless, the economic effectiveness of these machines is affected not only by their productivity or environmentally friendly operations but also the quality of performed work. It can be evaluated by the assessment of the quality of produced assortments. Decreasing quality of produced logs can result in the reduction of marketability and wood price. Thus, the aim of this pape

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Sieburg-Rockel, Jördis, and Gerald Koch. "Identification of wood species used in particleboard production." IAWA Journal 41, no. 4 (2020): 751–60. http://dx.doi.org/10.1163/22941932-bja10018.

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Abstract Wood and wood products including particleboard imported into the European Union (EU) are subject to the EU Timber Trade Regulation (EUTR) since 2013. With regard to the correct and complete required declaration, many such products not produced in the EU are currently investigated independently. The particles processed for the manufacture of particleboard are significantly smaller than solid wood samples. Thus, the preparation for anatomical analysis is more complex, as is their identification. The composition of the taxa identified allows a distinction between certain assortments acco

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Дербин, Vasiliy Derbin, Дербин, and Mikhail Derbin. "Improving cut-to-length of timber." Forestry Engineering Journal 5, no. 1 (2015): 128–35. http://dx.doi.org/10.12737/11270.

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Perestroyka in Russia has made significant adjustments to the technology of timber harvesting. Despite a number of significant advantages of tree length technology of timber compared to CTL, at logging enterprises CTL timber is widely used. The reasons of moving for the assortment technology of logging are considered. Diagram of logging site using harvester is given. The description of technology of felling, limbing and bucking of obtained timber on assortments is presented. Shortcomings of the harvester on this technology are marked. A new way to design cutting areas (technology) is suggested

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MUNIS, Rafaele Almeida, Jorge Carvalho MARTINS, Diego Aparecido CAMARGO, and Danilo SIMÕES. "Dynamics of Pinus wood prices for different timber assortments: comparison of stochastic processes." BOIS & FORETS DES TROPIQUES 351 (February 28, 2022): 45–52. http://dx.doi.org/10.19182/bft2022.351.a36392.

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Understanding the dynamics of market prices for Pinus wood is a prerequisite for strategic decisions concerning forest investment plans since, in terms of the market, the exogenous risk to a project depends on timber assortments. The stochastic process that represents the best way of pricing the underlying asset therefore needs to be known. This study set out to compare Fractional Brownian Motion and Geometric Brownian Motion, through econometric tests, to understand the stochastic model that best represents the price behaviour of Pinus wood from planted forests in the state of Santa Catarina,

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Marenče, Jurij, Bogdan Šega, and Dominika Gornik Bučar. "Monitoring the Quality and Quantity of Beechwood from Tree to Sawmill Product." Croatian journal of forest engineering 41, no. 1 (2019): 119–28. http://dx.doi.org/10.5552/crojfe.2020.613.

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The analysis evaluates the potential and methods of the respective assessment of beech trees, beech logs and sawn timber. The objective of the study was to assess the impact of the quality of the incoming raw material (tree) on the quality and quantity of products – obtained at the sawmill. The study presents a model that indicates the relations between the assessment of the quality of a standing beech tree and the quality of the sawmill products obtained from its wood. In addition, relations between individual quality classes of sawlogs, pulpwood, energy wood and sawn timber are shown. Standi

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Макеев and Viktor Makeev. "Determining the optimal load capacities units of forestry rolling stock." Forestry Engineering Journal 5, no. 4 (2015): 97–102. http://dx.doi.org/10.12737/17407.

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Improving the efficiency of freight transport and industrial processes of forest complex is of great importance in the production activities of its business depends on many factors. The most important factor is the choice of the type operated by forestry staff and capacity of its units. In a scientific paper delivered and successfully solved the problem of determining the optimum load capacity of rolling stock unit forestry given distance transportation of timber cargo and average technical speed of vehicles in the transportation of timber cargo. At the same time optimal load unit Forestry rol

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Gejdoš, Miloš, Martin Lieskovský, Blanka Giertliová, Miroslav Němec, and Zuzana Danihelová. "Prices of raw-wood assortments in selected markets of central Europe and their development in the future." BioResources 14, no. 2 (2019): 2995–3011. http://dx.doi.org/10.15376/biores.14.2.2995-3011.

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The aim of the paper is to evaluate the price development of timber assortments in selected countries in Central Europe, to compare the prices and identify the factors influencing the prices, and to quantify the extent of their impact on the prices. A further aim is to predict the price development based on comparing various models for predicting time series of prices. The analyses of the price development was carried out for the assortments of spruce, fir, and beech sawlogs in Slovakia, Czech Republic, and selected Austrian provinces. The analyzed period covered the years from 2001 to 2017 pe

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Halilović, Velid, Amer Kupusović, Jelena Knežević, Dževada Sokolović, Muhamed Bajrić, and Jusuf Musić. "Fuel and lubricants consumption during timber felling and processing in the area of p.j. Forest office „Zavidovići“." Šumarski list 143, no. 7-8 (2019): 345–46. http://dx.doi.org/10.31298/sl.143.7-8.5.

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Chainsaw is the main tool for work in a phase of wood felling and processing of forest harvesting in BiH. The aim of the research was to determine fuel and lubricant consumption of the chainsaws Husqvarna 365 and Dolmar PS – 7310 in the phase of felling and processing of wood assortments at the area of P.J. Forest Office „Zavidovići“, forest compartment 203. The volumetric method was applied for the measurement of fuel and lubricants consumption, with precise determination of fuel and lubricant quantity in chainsaw tanks. In total 140 trees of the sessile oak were felled (70 trees with chainsa

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Löwe, Sedmíková, Natov, Jankovský, Hejcmanová, and Dvořák. "Differences in Timber Volume Estimates Using Various Algorithms Available in the Control and Information Systems of Harvesters." Forests 10, no. 5 (2019): 388. http://dx.doi.org/10.3390/f10050388.

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Timber is the most important source of revenue in forestry and, therefore, is necessary to precisely estimate its volume. The share of timber volume produced by harvesters is annually growing in many European countries. Suitable settings of harvesters will allow us to achieve the most accurate volume estimates of the produced timber. In this study, we compared the different methods of log volume estimation applied by control and information systems of harvesters. The aim was to analyze the price categories that can be set up in the StanForD standard and to determine the differences between the

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Mederski, Piotr S., Konrad Werk, Mariusz Bembenek, Zbigniew Karaszewski, Mariusz Brunka, and Kwiryn Naparty. "Harvester efficiency in trunk utilisation and log quality of early thinning pine trees." Forest Research Papers 80, no. 1 (2019): 45–53. http://dx.doi.org/10.2478/frp-2019-0004.

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Abstract Obtaining high harvester efficiency in young pine stands during early thinning is achallenging management practice. One of the difficulties lies in achieving the optimal use of the tree trunk for assortments and obtaining satisfactory timber quality. The objective of this research was to find out 1) how much of the tree trunk can be processed by a harvester to produce logs, and 2) the quality of the assortments in terms of log length accuracy and delimbing quality. The work was carried out in a 31-year-old pine stand in northern Poland with the Vimek 404 5T harvester with the Keto For

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Piotr, S. Mederski, Werk Konrad, Bembenek Mariusz, Karaszewski Zbigniew, Brunka Mariusz, and Naparty Kwiryn. "Harvester efficiency in trunk utilisation and log quality of early thinning pine trees." Lesne Prace Badawcze / Forest Research Papers 80, no. 1 (2019): 45–53. https://doi.org/10.2478/frp-2019-0004.

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Obtaining high harvester efficiency in young pine stands during early thinning is a challenging management practice. One of the difficulties lies in achieving the optimal use of the tree trunk for assortments and obtaining satisfactory timber quality. The objective of this research was to find out 1) how much of the tree trunk can be processed by a harvester to produce logs, and 2) the quality of the assortments in terms of log length accuracy and delimbing quality. The work was carried out in a 31-year-old pine stand in northern Poland with the Vimek 404 5T harvester with the Keto Forst Silve

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Keca, Ljiljana, and Milica Marceta. "Modalities and procedures of the sales of wood assortments on the example of forest estate “juzni kucaj” despotovac." Bulletin of the Faculty of Forestry, no. 125 (2022): 57–82. http://dx.doi.org/10.2298/gsf2225057k.

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The paper presents the movement of sales of commercially important beech assort?ments in the forest estate (FE) ?Juzni Kucaj? Despotovac.This includes forms of sales through contracts made with buyers on an annual basis, as well as through auctions conducted in this FE.On the other hand, the processes and procedures that formally follow the sales of wood assortments were analyzed.The data were collected through a questionnaire sent to FE.The period considered was 2002 - 2016 for the sales of veneer and peeling logs, as well as firewood.Selling by auction relates to 2016.In this paper, the comp

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Puletti, Nicola, Mirko Grotti, and Roberto Scotti. "Evaluating the Eccentricities of Poplar Stem Profiles with Terrestrial Laser Scanning." Forests 10, no. 3 (2019): 239. http://dx.doi.org/10.3390/f10030239.

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The value of wood for different timber assortments can vary by a factor of ten. Optimization of stem assortments is, hence, a key element in the wood products supply chain, particularly for plantations. ‘Taper functions’ are commonly used in other countries to tackle this issue. In Italy, this approach has not yet entered operational use. These functions are developed based on measures of stem diameters taken at different distances from the base. Such measurements are commonly taken felling the tree and using a tape meter and tree caliper, clearly assuming some approximations. This research as

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Nosenzo, A. "Determination of timber assortments obtainable from coppice chestnut stands (Susa Valley, Northern Italy)." Forest@ - Rivista di Selvicoltura ed Ecologia Forestale 4, no. 1 (2007): 118–25. http://dx.doi.org/10.3832/efor0441-0040118.

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Malinen, Jukka, Harri Kilpeläinen, and Kalle Ylisirniö. "Description and evaluation of Prehas software for pre-harvest assessment of timber assortments." International Journal of Forest Engineering 25, no. 1 (2014): 66–74. http://dx.doi.org/10.1080/14942119.2014.902686.

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Blam, Yuriy, and Ludmila Mashkina. "TIMBER SECTOR: FORECASTS AND STRATEGIES." Interexpo GEO-Siberia 3, no. 1 (2019): 30–38. http://dx.doi.org/10.33764/2618-981x-2019-3-1-30-38.

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The authors analyze the information base of the elaborated forecasts and strategies for the timber complex development from the viewpoint of the territorial differentiation in resources and infrastructure availability. The structure of the harvested timber is aligned with the volume and quality characteristics of the wood assortments needed for production of the forecasted types of the final forest product. It is confirmed that the volume of the small-scale wood substance and waste products formed under clean cutting and also under production of board lumber and plywood, cannot be completely u

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Soldatov, Aleksandr V., Eduard F. Gerts, Andrey V. Mekhrentsev, and Alina F. Urazova. "Justification of Raw Material Supply for a Timber Industry Enterprise." Lesnoy Zhurnal (Forestry Journal), no. 2 (April 5, 2025): 128–42. https://doi.org/10.37482/0536-1036-2025-2-128-142.

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The article presents the characteristics of the forest fund of the Republic of Bashkortostan, its area, estimated cutting area and quality indicators. An increase in the share of softwood species in the forest fund and a decrease in the yield of industrial wood as a result of the felling of high-quality pine forests have been noted. The relevance of placing in the region an enterprise for processing unclaimed low-quality wood raw materials, Kronoshpan OSB LLC, the world’s largest manufacturer of wood boards, has been substantiated. The issues of substantiation of wood grading and the adoption

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Pelissari, Allan Libanio, Marcelo Roveda, Sidney Fernando Caldeira, Carlos Roberto Sanquetta, Ana Paula Dalla Corte, and Carla Krulikowski Rodrigues. "GEOSTATISTICAL MODELING OF TIMBER VOLUME SPATIAL VARIABILITY FOR Tectona grandis L. F. PRECISION FORESTRY." CERNE 23, no. 1 (2017): 115–22. http://dx.doi.org/10.1590/01047760201723012291.

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ABSTRACT Considering the hypothesis that the wood volumes present spatial dependence, whose knowledge contributes for the precision forestry, the aim of this work was to estimate the volume spatial variability for timber assortments and identify their spatial patterns on Tectona grandis stands. A dataset of 1,038 trees was used to fit taper models and estimate the total stem, sawlog, and firewood volumes in 273 plots allocated on T. grandis stands at eight years old, which represents the second thinning that enables commercial volumes. Semivariograms models was applied to fit the spatial depen

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Adam, Tomasz Sikora. "The effect of natural disasters on the timber market." Lesne Prace Badawcze / Forest Research Papers 78, no. 4 (2017): 277–84. https://doi.org/10.1515/frp-2017-0031.

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The aim of the study was to determine the impact an increased wood supply from the Beskid forests after natural disasters on the timber economy of the Węgierska Górka Forest District and its surroundings in the years 2004–2010. The analysis was based on the wood raw material sales recorded in the database of the State Forestry Information System (SILP). Information on the buyers'location and their main use for the raw material were obtained through the Central Statistical Office. Furthermore, wood material buyers were classified according to the Polish Classification of Activi

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Dudík, R. "Economic aspects of the selection system of management at the Masaryk Forest Training Forest Enterprise Křtiny." Journal of Forest Science 51, No. 1 (2012): 24–36. http://dx.doi.org/10.17221/4541-jfs.

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The objective of the paper is to establish an economic result of the management of forest stand under a selection system as exemplified on a model subcompartment. A qualitative research of tree species occurring in Subcompartment 116 D <br />at the Training Forest Enterprise (TFE) was made for this purpose. Cost and yield models of management were constructed and expected model costs and yields were calculated to establish a model economic result for the subcompartment. The models are entered actual data related to the general principles of management, to the volume of implemented silvic

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Čakša, Linda, Silva Šēnhofa, Guntars Šņepsts, Didzis Elferts, Līga Liepa, and Āris Jansons. "Effect of Stem Snapping on Aspen Timber Assortment Recovery in Hemiboreal Forests." Forests 12, no. 1 (2020): 28. http://dx.doi.org/10.3390/f12010028.

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Post-disturbance salvage logging mitigates economic loss after windthrow, and the value of salvaged timber is strongly linked to its quality and dimensions. We studied the occurrence of wind-induced damage of aspen in the hemiboreal forests of Latvia based on data from the National Forest Inventory and additional measurements. Individual tree data from three re-measurement periods were linked to follow a tree condition (live, broken, uprooted) and to link tree characteristics to a respective snag. Three linear models were developed to assess factors affecting the snapping height. An assortment

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Tahvonen, Olli, Sampo Pihlainen, and Sami Niinimäki. "On the economics of optimal timber production in boreal Scots pine stands." Canadian Journal of Forest Research 43, no. 8 (2013): 719–30. http://dx.doi.org/10.1139/cjfr-2012-0494.

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This study analyzes the optimal management of Scots pine (Pinus sylvestris L.) stands by applying recent developments in numerical optimization methods and forest production ecology. Our approach integrates a process-based, stand-level growth model and a detailed economic description of stand management. The variables optimized include the initial stand density, the number, timing, type, and intensity of thinnings, and the rotation period. A generalized pattern search is used to maximize the present value of net timber revenue over an infinite time horizon. The model adopts quality pricing, wh

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