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Journal articles on the topic 'Timber harvesting methods'

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1

Byblyuk, N., O. Styranivsky, V. Korzhov, and V. Kudra. "Timber harvesting in the ukrainian carpathians: Ecological problems and methods to solve them." Journal of Forest Science 56, No. 7 (2010): 333–40. http://dx.doi.org/10.17221/111/2009-jfs.

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The paper contains results of comparative investigations of crawler and wheeled skidders regarding their effect on soil surface, undergrowth and rut formation during mountain timber harvesting. It was shown that the extent of erosion resulting from damage to the soil surface depends on the steepness and length of slopes during both construction of skidding tracks and skidding by tractors. Considering the current condition of development of timber harvesting machinery, the use of crawler machines is the main method for transportation of cargos in regions with difficult access.
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2

Bürgi, Patric, and Bernhard Pauli. "Ansätze zur Senkung der Holzerntekosten in der Schweiz." Schweizerische Zeitschrift fur Forstwesen 164, no. 6 (2013): 148–57. http://dx.doi.org/10.3188/szf.2013.0148.

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Approaches to reducing timber harvesting costs in Switzerland For over two decades, the majority of Swiss forest enterprises have been confronted with financial losses. One of the main reasons for this is the general diminishing of revenues from timber sales since the 1980s. Moreover, Swiss forest enterprises have not managed to reduce the most important matter of expenses – the timber harvesting costs – to a similar extent. In comparison, unit costs from timber harvest in Switzerland are more than twice as high as those in the neighboring countries. This study analyzes the cause-and-effect re
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3

Eckley, Michael, and Andrew Egan. "Harvesting Where the People Are: Aesthetic Preferences for Logging-in-Progress." Journal of Forestry 103, no. 8 (2005): 401–6. http://dx.doi.org/10.1093/jof/103.8.401.

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Abstract As forested areas become more populated, the aesthetic values associated with logging-in-progress are increasingly driving public reaction to and concern about timber harvesting. Using a video-based survey, this research assessed the public's visual and aural preferences for five ground-based timber harvest yarding methods—a forwarder, rubber-tired cable skidder, bulldozer, farm tractor, and workhorse—based on a battery of attributes and situations. In addition, this study investigated the relationships between several possible explanatory variables—respondents' gender, knowledge of t
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4

Yuniawati and Rossi Margareth Tampubolon. "A Decrease in Carbon Absorption Potential Due to Timber Harvesting in Natural Forest." Jurnal Sylva Lestari 9, no. 3 (2021): 389–99. http://dx.doi.org/10.23960/jsl.v9i3.516.

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Timber harvesting is an activity in producing wood to supply the lumber industry. However, timber harvesting brought consequences such as decreasing carbon sequestration potential of natural forests. This study aimed to determine the reduction in the potential for carbon sequestration due to timber harvesting in natural forests. Data were collected using non-destructive methods through stand inventory before felling for all tree species, cruising results report, and tree distribution maps. Biomass was calculated using the existing allometric, and carbon stocks were calculated using the Intergo
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Han, Hee, Woodam Chung, Ji She, Nathaniel Anderson, and Lucas Wells. "Productivity and Costs of Two Beetle-Kill Salvage Harvesting Methods in Northern Colorado." Forests 9, no. 9 (2018): 572. http://dx.doi.org/10.3390/f9090572.

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Two ground-based timber harvesting methods have been commonly used for beetle-kill salvage treatments after a bark beetle epidemic in northern Colorado. A “lop and scatter” method uses a mobilized stroke delimber to delimb and buck trees at the stump, leaving tree tops and limbs on the forest floor, while a whole-tree harvesting method brings the entire tree to the landing where it is delimbed and bucked, and thus produces logging residue piles at the landing as a byproduct. We conducted a detailed comparative time study of the two harvesting methods to develop productivity and cost models and
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Lebenzon, Evgeny, and Lev Klebanov. "Eliminating lacunae in the timber illegal trafficking and felling investigation (on the practice of the courts of the Zabaikalsky Krai)." E3S Web of Conferences 460 (2023): 09005. http://dx.doi.org/10.1051/e3sconf/202346009005.

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The present article explores the relevance of the normative context of crimes related to environmental offences of illegal harvesting. The article reviews the practice of the Zabaikalsky Krai Chita District Court in handling criminal cases of this category, and the report emphasises the need for more effective work of law enforcement agencies in investigating criminal acts in the sphere of illegal harvesting and trafficking of criminally extracted timber. The study aims to involve professional organisations and improve cooperation with relevant stakeholders to address the problem of combating
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7

Gołos, Piotr Tadeusz, Joanna Ukalska, Emilia Wysocka-Fijorek, and Wojciech Gil. "How Much Is the Abandonment of Forest Management in Private Forests Worth? A Case of Poland." Forests 12, no. 9 (2021): 1138. http://dx.doi.org/10.3390/f12091138.

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The provision of forest ecosystem services (such as biodiversity, water and soil protection, and recreation) is often associated with a reduction in timber harvesting. In the case of private forests, such a situation requires institutional solutions that allow the economic balance of forest management to be maintained. The aim of the study was to find out the average value of monetary compensation private forest owners would expect in case of timber harvesting restrictions. The study was conducted with a random sample of 1003 forest landowners. The average value of expected compensation ranged
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8

Karaszewski, Zbigniew, Dieter F. Giefing, Piotr S. Mederski, Anita Dobek, and Anastasia Stergiadou. "Stand damage when harvesting timber using a tractor for extraction." Forest Research Papers 74 (1) (March 1, 2013): 27–34. https://doi.org/10.2478/frp-2013-0004.

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Damage to the remaining stand is an unavoidable consequence of thinning operations. The different machines used for timber extraction differ in the level of damage of trees they cause, mainly through wounds to the bark and cambium which can make a substantial impact on the remaining trees. Three different methods of timber harvesting with a chainsaw were analyzed: the short wood system (SWS), the long wood system (LWS) and the full tree system (FTS) in which an agricultural tractor is used for timber extracting. All systems were analyzed in stands containing three different age classes: 2nd (2
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9

Bont, Leo Gallus, Marielle Fraefel, Fritz Frutig, Stefan Holm, Christian Ginzler, and Christoph Fischer. "Improving forest management by implementing best suitable timber harvesting methods." Journal of Environmental Management 302 (January 2022): 114099. http://dx.doi.org/10.1016/j.jenvman.2021.114099.

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10

Dinca, Lucian, Cristinel Constandache, Ruxandra Postolache, Gabriel Murariu, and Eliza Tupu. "Timber Harvesting in Mountainous Regions: A Comprehensive Review." Forests 16, no. 3 (2025): 495. https://doi.org/10.3390/f16030495.

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Mountain ecosystems play a crucial role in providing ecosystem services, with some of the most important being carbon sequestration, biodiversity conservation, land protection, and water source preservation. Additionally, timber harvesting in these regions presents significant environmental, economic, and social challenges. This study provides a comprehensive bibliometric and systematic analysis of publications on timber harvesting in mountainous areas, examining the current state, global trends, key contributors, and the impact of forestry operations. A total of 357 publications on timber har
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11

Rey, Carlos, Simón Sandoval, Guillermo Cabrera-Vives, Diego Seco, Pierluigi Cerulo, and Zheng Li. "A Novel Two-Phase Approach to Forest Harvesting Optimization Using Cable Logging." Forests 14, no. 11 (2023): 2133. http://dx.doi.org/10.3390/f14112133.

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Timber extraction is a vital process in forest harvesting, particularly in areas with high slopes where timber harvesting methods are not feasible. In such cases, logging towers employing extraction cables are often the most effective solution. This intricate task involves several phases, with the installation of the tower being one of the most critical. It significantly influences the performance and feasibility of timber extraction. Another crucial phase involves strategically positioning logging lines to minimize the installation time while maximizing the load capacity efficiency. This arti
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12

Munis, Rafaele Almeida, Rodrigo Oliveira Almeida, Diego Aparecido Camargo, Richardson Barbosa Gomes da Silva, Jaime Wojciechowski, and Danilo Simões. "Machine Learning Methods to Estimate Productivity of Harvesters: Mechanized Timber Harvesting in Brazil." Forests 13, no. 7 (2022): 1068. http://dx.doi.org/10.3390/f13071068.

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The correct capture of forest operations information carried out in forest plantations can help in the management of mechanized harvesting timber. Proper management must be able to dimension resources and tools necessary for the fulfillment of operations and helping in strategic, tactical, and operational planning. In order to facilitate the decision making of forest managers, this work aimed to analyze the performance of machine learning algorithms in estimating the productivity of timber harvesters. As predictors of productivity, we used the availability of hours of machine use, individual m
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13

ОRLOV, A. M., A. P. КОVALEV, O. S. GROMYKO, and YU A. GRISHCHENOVA. "ON THE PROBLEMS AND PROSPECTS OF TIMBER HARVESTING IN THE FORESTS OF THE FAR EAST." Prirodoobustrojstvo, no. 2 (2022): 108–15. http://dx.doi.org/10.26897/1997-6011-2022-2-108-115.

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The objective of the study is to examine and forecast the possible volumes of timber harvesting in the near future in the Far East of Russia on the example of the Khabarovsk and Primorsky territries, based on the actual volume of logging over the past eight years. The methods of comparative and computation al analyses were used as methodological basis of the study, including the collection and analysis of logging and processing industries information. Industry and customs statistics, as well as the authors’ own research, were taken as initial data. The current situation with timber harvesting
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14

Dulsalam, Soenarno, and Sukadaryati. "Trial performance of the zero waste harvesting method in three forest concession companies, Central Kalimantan Province, Indonesia." IOP Conference Series: Earth and Environmental Science 914, no. 1 (2021): 012061. http://dx.doi.org/10.1088/1755-1315/914/1/012061.

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Abstract Currently, natural forest management companies (concession permit of timber forest products utilization-natural forest/IUPHHK-HA) have implemented Reduced Impact Logging (RIL) technology but timber harvesting is still carried out using the conventional method. Tree length logging is an alternative method of harvesting wood in an effort to reduced waste and increases the efficiency of the utilization of timber forest products and the preservation of natural production forests. The potential for wood harvesting waste is estimated at 2.21 million m3year−1 and has remained left in the cut
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15

Reisinger, Thomas W., Gerry L. Simmons, and Phillip E. Pope. "The Impact of Timber Harvesting on Soil Properties and Seedling Growth in the South." Southern Journal of Applied Forestry 12, no. 1 (1988): 58–67. http://dx.doi.org/10.1093/sjaf/12.1.58.

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Abstract Mechanization of timber harvesting operations in the South has increased concern about the detrimental impact that heavy machine traffic has on soil physical properties and site productivity. Improperly timed harvesting operations have potentially detrimental effects on forest soils and the growth of seedlings Foresters and other land managers must be aware of the potential soil disturbance caused by heavy machines, and apply methods that minimize long-term site quality degradation attributable, directly or indirectly, to mechanized equipment. Research literature about the effects of
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16

Karaszewski, Zbigniew, Dieter F. Giefing, Piotr S. Mederski, Mariusz Bembenek, Anita Dobek, and Anastasia Stergiadou. "Stand damage when harvesting timber using a tractor for extraction." Forest Research Papers 74, no. 1 (2013): 27–33. http://dx.doi.org/10.2478/frp-2013-0004.

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Abstract Damage to the remaining stand is an unavoidable consequence of thinning operations. The different machines used for timber extraction differ in the level of damage of trees they cause, mainly through wounds to the bark and cambium which can make a substantial impact on the remaining trees. Three different methods of timber harvesting with a chainsaw were analyzed: the short wood system (SWS), the long wood system (LWS) and the full tree system (FTS) in which an agricultural tractor is used for timber extracting. All systems were analyzed in stands containing three different age classe
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17

Ghaffariyan, M. R., and M. Brown. "Selecting the efficient harvesting method using multiple-criteria analysis: A case study in south-west Western Australia." Journal of Forest Science 59, No. 12 (2013): 479–86. http://dx.doi.org/10.17221/45/2013-jfs.

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Different factors can impact on the timber harvesting methods including stand characteristics, ground conditions, extraction distance, climate, silvicultural treatments and social interests. The multiple-criteria analysis is an effective methodology for helping foresters decide what system to apply depending on their operations specifications. Four harvesting methods were compared in Western Australian Eucalypt plantations including cut-to-length (CTL), in-field chipping using a delimbing and debarking flail integrated with the chipper (IFC-DDC), in-field chipping using a chipper with a separa
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18

Ghaffariyan, Mohammad Reza. "Short review of collecting technologies and methods in forest harvesting residues recovery." Silva Balcanica 24, no. (1) (2023): 55–68. https://doi.org/10.3897/silvabalcanica.24.e97620.

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Tree felling and processing can create harvesting residues including leaves and twigs (needles), cones, barks, and branches. Collecting forest harvesting residues requires application of suitable machines and working methods. This article is aimed at reviewing the published reports to identify new harvesting machines and working methods for recovering harvesting residues and the current gaps. The scope of review included published research reports/articles from 2017 to 2022 (last five years). This global review results showed that popular methods for residue collection are chipping residues at
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19

Sohngen, Brent, and Sandra Brown. "Measuring leakage from carbon projects in open economies: a stop timber harvesting project in Bolivia as a case study." Canadian Journal of Forest Research 34, no. 4 (2004): 829–39. http://dx.doi.org/10.1139/x03-249.

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This paper develops methods for estimating leakage from forest-based carbon projects that seek to reduce carbon emissions from timber harvesting in tropical forests. A theoretical framework is presented in which a specific country, in this case Bolivia, is treated as a supplier to the global timber market. Leakage is measured, over a 30- to 50-year time period, as the difference in net national carbon emissions from timber harvesting between the baseline case and a scenario in which some of the land is removed from the concession base. Estimates of timber leakage are made for several different
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20

Ghaffariyan, Mohammad Reza. "Short review of collecting technologies and methods in forest harvesting residues recovery." Silva Balcanica 24, no. 1 (2023): 55–68. http://dx.doi.org/10.3897/silvabalcanica.24.e97620.

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Tree felling and processing can create harvesting residues including leaves and twigs (needles), cones, barks, and branches. Collecting forest harvesting residues requires application of suitable machines and working methods. This article is aimed at reviewing the published reports to identify new harvesting machines and working methods for recovering harvesting residues and the current gaps. The scope of review included published research reports/articles from 2017 to 2022 (last five years). This global review results showed that popular methods for residue collection are chipping residues at
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21

Hendrickson, O. Q., L. Chatarpaul, and J. B. Robinson. "Effects of Two Methods of Timber Harvesting on Microbial Processes in Forest Soil." Soil Science Society of America Journal 49, no. 3 (1985): 739–46. http://dx.doi.org/10.2136/sssaj1985.03615995004900030041x.

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22

Page-Dumroese, Deborah S., Matt D. Busse, James G. Archuleta, Darren McAvoy, and Eric Roussel. "Methods to Reduce Forest Residue Volume after Timber Harvesting and Produce Black Carbon." Scientifica 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/2745764.

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Forest restoration often includes thinning to reduce tree density and improve ecosystem processes and function while also reducing the risk of wildfire or insect and disease outbreaks. However, one drawback of these restoration treatments is that slash is often burned in piles that may damage the soil and require further restoration activities. Pile burning is currently used on many forest sites as the preferred method for residue disposal because piles can be burned at various times of the year and are usually more controlled than broadcast burns. In many cases, fire can be beneficial to site
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23

Alex, Ashish, Anil Raj Kizha, Alex K. George, et al. "Carbon footprint of the predominant mechanized timber harvesting methods in the Northeastern US." Cleaner and Circular Bioeconomy 9 (December 2024): 100097. http://dx.doi.org/10.1016/j.clcb.2024.100097.

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Kamiński, Krzysztof, Grzegorz Szewczyk, and Janusz Kocel. "Standardization of complementary work time in timber harvesting processes." Folia Forestalia Polonica 62, no. 4 (2020): 258–69. http://dx.doi.org/10.2478/ffp-2020-0025.

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AbstractOne of the essential elements of work technology assessment is task performance time. In the working day structure, production times are crucial; however, under certain conditions, complementary work times can have a share of up to 30%. Accurate determination of the time structure of a work shift is very time consuming and requires time measurements using the methods of cumulative timing or snapshot observations. For this reason, the overall share of complementary work times in a work shift is usually estimated roughly, equally for all timber harvesting conditions. The aim of this stud
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Sullivan, Jay, and J. Keith Gilless. "Hybrid Econometric/Input-Output Modeling of the Cumulative Economic Impact of National Forest Harvest Levels." Forest Science 36, no. 4 (1990): 863–77. http://dx.doi.org/10.1093/forestscience/36.4.863.

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Abstract Econometric and input-output methods are combined to assess the multiforest personal income impacts of timber harvesting activities on regional economies in Northern California. The importance of a combined assessment is demonstrated using data from the El Dorado and Shasta-Trinity national forests. Depending upon the timber harvest levels of other national forests in the area, projected changes in personal income resulting from a change in harvest level on either forest varied by as much as 27%. For. Sci. 36(4):863-877.
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Kushmi, Leera, Narendra Ojha, and Shiva Khadka. "Assessment of timber and fuel wood harvesting practices and distribution pattern in CFUGs of Khotang District, Nepal." Journal of Forests 11, no. 2 (2024): 35–49. https://doi.org/10.18488/jof.v11i2.3994.

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Proper harvesting of forest products is necessary for sustainable forest management, playing a pivotal role in minimizing damage and waste while ensuring the sustainability of forest resources. Sustainable community forest management greatly depends on the harvesting and fair distribution of various forest products (FP). The study's goals were to ascertain the methods, instruments, and strategies utilized in the harvesting process, forest products distribution pattern, and the common issues surrounding the distribution and harvesting of FP in Imo and Ashoje Community Forest (CF) located in Kho
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Britto, Pedro C., Dirk Jaeger, Stephan Hoffmann, Renato C. G. Robert, Alexander C. Vibrans, and Alfredo C. Fantini. "Impact Assessment of Timber Harvesting Operations for Enhancing Sustainable Management in a Secondary Atlantic Forest." Sustainability 11, no. 22 (2019): 6272. http://dx.doi.org/10.3390/su11226272.

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Conservation and management of forest ecosystems are currently largely conflicting goals in the Brazilian Atlantic Forest biome. At present, all parts of the Atlantic Forest are protected and commercial logging is highly restricted. However, sustainable forest management systems can offer significant income opportunities for landholders, and thereby actively support the process of ecosystem rehabilitation and protection of the Atlantic Forest. This research is intended to contribute to enhancing the development of environmentally sound forest management alternatives in the Atlantic Forest biom
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Pascual, Adrián, Timo Pukkala, Sergio De-Miguel, Annukka Pesonen, and Petteri Packalen. "Influence of timber harvesting costs on the layout of cuttings and economic return in forest planning based on dynamic treatment units." Forest Systems 27, no. 1 (2018): e001. http://dx.doi.org/10.5424/fs/2018271-11897.

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Aim of study: To analyze the influence of harvesting costs on the distribution and type of cuttings when forest management planning is based on the dynamic treatment units (DTUs) approach.Area of study: A Mediterranean pine forest in Central Spain.Materials and methods: Airborne laser scanning data were used in area-based approach to predict stand attributes and delineate segments that were used as calculation units. Predicted stand attributes and existing models for diameter distribution and individual-tree growth were used to simulate alternative management schedules for each segment for a 6
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MOLLEMAN, LUCAS, SIL BOEVE, JAN WOLF, GERARD OOSTERMEIJER, SOUBADRA DEVY, and RENGAIAN GANESAN. "Commercial harvesting and regeneration of epiphytic macrolichen communities in the Western Ghats, India." Environmental Conservation 38, no. 3 (2011): 334–41. http://dx.doi.org/10.1017/s0376892911000142.

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SUMMARYNon-timber forest products form a substantial contribution to the livelihood of many rural communities worldwide. In the Western Ghats, India, epiphytic macrolichens are harvested by Paliyan tribes to generate supplementary income. Paliyan tribes employ two harvesting methods: shallow harvesting, with a minimum of attached bark substratum, and deep harvesting, which exposes the sapwood. To evaluate the regeneration of the lichen community in terms of species diversity, abundance and composition, 320 bark samples of up to 50 cm2 were collected from bark patches where lichens had been har
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Laukkanen, Sanna, Teijo Palander, and Jyrki Kangas. "Applying voting theory in participatory decision support for sustainable timber harvesting." Canadian Journal of Forest Research 34, no. 7 (2004): 1511–24. http://dx.doi.org/10.1139/x04-044.

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Several multi-criteria decision support methods have been introduced to sustainable management of natural resources, but different methods suit different planning situations. One way to support decision-making is to apply voting theory. In this study, a multi-criteria decision-support method based on voting theory, called multicriteria approval (MA), is applied to wood supply chain management in a forest area owned by the state of Finland. The area is called Leikko and is located in the rural municipality of Pieksämäki. MA seems to have some promising features in relation to participatory deci
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Arnejo, Zenith, Leonardo Barua, Paul Joseph Ramirez, Cristino Tiburan Jr., and Nathaniel Bantayan. "An Agent-Based Model of a Sustainable Forest Operation in a Theoretical Lowland Dipterocarp Forest Modeled after Mount Makiling Forest Reserve, Philippines." Forests 14, no. 2 (2023): 428. http://dx.doi.org/10.3390/f14020428.

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This study investigates the integration of assisted natural regeneration (ANR) and selective logging (SL) to guarantee a sustainable forest operation in the Philippines using agent-based modeling. To assess the sustainability of the operation in light of the revenue from timber harvesting and the health of the forest in terms of the total number of trees, various simulations were run on a theoretical forest modeled after the Mount Makiling Forest Reserve in the Philippines. The findings of the simulation have shown that, even after many years of continuous use, the performance of SL on a healt
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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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Bont, Maurer, and Breschan. "Automated Cable Road Layout and Harvesting Planning for Multiple Objectives in Steep Terrain." Forests 10, no. 8 (2019): 687. http://dx.doi.org/10.3390/f10080687.

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Cable yarding is the most commonly used technique for harvesting timber from steep terrain in central Europe. During the planning process, one important task is to define the cable road layout. This means that the harvesting technology and cable road location must be specified for a given timber parcel. Although managers must minimize harvesting costs, it is even more important that such work on forests reduces the potential for damage to the residual stand and ensures that environmental conditions remain suitable for regeneration. However, current methods are geared only toward minimizing har
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Hwang, Larry C., H. Rodolfo Juliani, and James E. Simon. "Assessing Traditional and Sustainable Harvesting Methods on the Collection of Two Leading Non-Timber Forest Products - Griffonia simplicifolia and Xylopia aethiopica - In Liberia." Sustainable Food Production 4 (December 2018): 1–10. http://dx.doi.org/10.18052/www.scipress.com/sfp.4.1.

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Traditional harvesting methods of NTFP are known to be destructive and/or wasteful that can reduce and sometimes deplete the population of NTFP and the biological diversity. Sustainable harvesting is not only necessary for conservation of plant diversity, but also for the livelihoods of many rural peoples in forest areas who rely on forest products for their sustenance. Sustainable harvesting increasingly acknowledged as a conservation strategy can easily be employed for species plants that require seeds harvest as product, such as Griffonia and Xylopia. The harvest of such NTFP requires a pra
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Eckley, Chris S., Collin Eagles-Smith, Michael T. Tate, et al. "Stream Mercury Export in Response to Contemporary Timber Harvesting Methods (Pacific Coastal Mountains, Oregon, USA)." Environmental Science & Technology 52, no. 4 (2018): 1971–80. http://dx.doi.org/10.1021/acs.est.7b05197.

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Svoikin, Fedor, Kirill Zhuk, Vladimir Svoikin, et al. "Classification of Tree Species in the Process of Timber-Harvesting Operations Using Machine-Learning Methods." Inventions 8, no. 2 (2023): 57. http://dx.doi.org/10.3390/inventions8020057.

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This article presents the constraining factors that limit the increase in the efficiency of logging production by modern multi-operation machines operating on the Scandinavian cut-to-length technology in the felling phase, namely the selection and registration of wood species. The factors for creating a complete architecture of a fully connected neural network (NN) are given. The dependence of the prediction accuracy of a fully connected NN on a test sample on the size of the training dataset, and an image of the dependence of the prediction accuracy on the number of trees in the random forest
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37

Hartley, Damon S., and Han-Sup Han. "Effects of Alternative Silvicultural Treatments on Cable Harvesting Productivity and Cost in Western Washington." Western Journal of Applied Forestry 22, no. 3 (2007): 204–12. http://dx.doi.org/10.1093/wjaf/22.3.204.

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Abstract Increasingly, alternative silvicultural methods have been considered to meet the demand for nontimber values such as visual quality and biodiversity in the Pacific Northwest. The successful implementation of these alternative silviculture treatments requires careful consideration of economics and operational efficiencies in timber harvesting. This study used detailed time study and shift-level data to assess the effect of alternative silvicultural treatments on the production and cost of cable harvesting in western Washington. Four silvicultural treatments were examined: clearcut, two
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Đuka, Andreja, Tomislav Poršinsky, Tibor Pentek, Zdravko Pandur, Dinko Vusić, and Ivica Papa. "Mobility Range of a Cable Skidder for Timber Extraction on Sloped Terrain." Forests 9, no. 9 (2018): 526. http://dx.doi.org/10.3390/f9090526.

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The use of forestry vehicles in mechanised harvesting systems is still the most effective way of timber procurement, and forestry vehicles need to have high mobility to face various terrain conditions. This research gives boundaries of planning timber extraction on sloped terrain with a cable skidder, considering terrain parameters (slope, direction of skidding, cone index), vehicle technical characteristics and load size (5 different loads) relying on sustainability and eco-efficiency. Skidder mobility model was based on connecting two systems: vehicle-terrain (load distribution) and wheel-so
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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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Gao, Guibin, Xing Wen, Jinfang Qian, et al. "Effects of Different Management Practices on Ramet System Dynamics in Moso Bamboo (Phyllostachys edulis) Forests, China." Plants 14, no. 12 (2025): 1835. https://doi.org/10.3390/plants14121835.

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Examining the ramet system in bamboo forests can provide an important theoretical basis for strategic management. Moso bamboo is an economically important species in China, and implementing the correct management measures can play a key role in improving bamboo productivity. However, the dynamics of the Moso bamboo ramet system under timber vs. shoot forest management remain underexplored. In this study, we investigated the underground rhizome growth, bud bank structures, branch growth, and distribution patterns of bamboo ramet systems in the two main bamboo cultivation types. Shoot forest ram
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Kizha, Anil Raj, Evan Nahor, Noah Coogen, Libin T. Louis, and Alex K. George. "Residual Stand Damage under Different Harvesting Methods and Mitigation Strategies." Sustainability 13, no. 14 (2021): 7641. http://dx.doi.org/10.3390/su13147641.

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A major component of sustainable forest management are the stands left behind after the logging operation. Large mechanized harvesting equipment involved in current forest management can inflict damage on residual trees; and can pose a risk of mortality from diseases, natural calamities, and/or degrade future economic value. The primary objective of this study was to evaluate the residual stand damage under different harvesting methods and silvicultural prescriptions i.e., crop tree release (CTR), diameter limit cut (DLC), and overstory removal (OSR). The second objective was to evaluate the i
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Shegelman, Ilya, Pavel Budnik, and Evsey Morozov. "Optimization of a forest harvesting set based on the Queueing Theory: Case study from Karelia." Forestry Journal 61, no. 4 (2015): 211–20. http://dx.doi.org/10.1515/forj-2015-0029.

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Abstract The modern technological process of timber harvesting is a complex system both technically and organizationally. Nowadays, the study of such systems and improvement of their efficiency is impossible without the use of mathematical modeling methods. The paper presents the methodology for the optimization of logging operations based on the queueing theory. We show the adapted queueing model, which characterizes the process of logging with the use of a harvesting set consisting of harvesters and forwarders. We also present the experimental verification of the designated model that confir
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Mossman, Angus, Max R. Lambert, Mark S. Ashton, Jessica Wikle, and Marlyse C. Duguid. "Two salamander species respond differently to timber harvests in a managed New England forest." PeerJ 7 (August 30, 2019): e7604. http://dx.doi.org/10.7717/peerj.7604.

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Background Managing forests for timber while protecting wildlife habitat is of increasing concern. Amphibians may be particularly sensitive to forest management practices due to their unique biology; however, it is not clear how different species respond to timber harvest practices—particularly over longer time scales. Methods Here we report on the differential responses of two salamander species—the eastern red-backed salamander (Plethodon cinereus Green) and the eastern newt (Notophthalmus viridescens Rafinesque)—to forest harvesting, by examining communities across a 25-year chronosequence
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Aust, W. Michael, Masato Miwa, James A. Burger, Steve C. Patterson, and Emily A. Carter. "Wet-Weather Timber Harvesting and Site Preparation Effects on Coastal Plain Sites: A Review." Southern Journal of Applied Forestry 28, no. 3 (2004): 137–51. http://dx.doi.org/10.1093/sjaf/28.3.137.

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Abstract Increased interest in sustainable forestry has intensified the need for information on the interactions of forest soils, harvesting methods, site disturbances, and the efficacy of methods for ameliorating disturbances. On wet pine flats, such as those commonly found in the Atlantic and Gulf Coastal Plains, conditions such as frequent rainfall, low relief, and poor internal soil drainage often predispose forest soils to harvest disturbances and potential damage. Typical forest operations use heavy logging equipment, such as rubber-tired feller-bunchers and skidders. During dry soil con
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КОВАЛЕВ, А. П., and Е. В. ЛАШИНА. "CRITERIA FOR THE SUSTAINABILITY OF TREE STANDS DURING TIMBER HARVESTING IN MATURE AND OVERMATURE STANDS." Сибирский лесной журнал, no. 2 (April 30, 2024): 59–67. http://dx.doi.org/10.15372/sjfs20240207.

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Формирование устойчивых древостоев при заготовке древесины в спелых и перестойных насаждениях во многом определяется применяемыми способами рубок и технологическими приемами их осуществления, что при сплошнолесосечных рубках прежде всего зависит от степени сохранения подроста, тонкомера и не подлежащих рубке деревьев, обеспечивающих ускоренное воспроизводство насаждений на вырубках. Среди технологий лесосечных работ этому способствуют узкопасечные технологические схемы с шириной пасек 15-30 м, позволяющие сохранять тонкомер и подрост свыше 60 %. При выборочном хозяйстве основной упор направлен
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MURAEV, Igor' G., and Ol'ga P. SUSHKO. "Regional aspects of forest management and reforestation." Regional Economics: Theory and Practice 22, no. 11 (2024): 2179–96. http://dx.doi.org/10.24891/re.22.11.2179.

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Subject. This article discusses the role of the forest complex' development in the advancement of industry and the economy as a whole, and the problem of maintaining a balance between deforestation and reforestation. Objectives. The article aims to analyze the trends in reforestation and changes in timber reserves in the Arkhangelsk Oblast. Methods. For the study, we used the general scientific research methods. Results. The article highlights the advantages of the site method of forest management and finds that the size of the allowable cutting area and the volume of timber harvesting in the
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Sakals, M. E., and Roy C. Sidle. "A spatial and temporal model of root cohesion in forest soils." Canadian Journal of Forest Research 34, no. 4 (2004): 950–58. http://dx.doi.org/10.1139/x03-268.

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Root cohesion is an important parameter governing slope stability in steep forested terrain. Forest harvesting impacts root cohesion, and although the temporal effects have been noted, this dynamic parameter is often assumed to be spatially uniform. A model was developed to simulate the variation in root cohesion on a hillslope resulting from various forest management treatments. The model combines physical data on the horizontal rooting distribution of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) together with a temporal relation of root cohesion decay. Harvesting methods
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Mokhirev, Aleksandr, Marina Gerasimova, and Mihail Krasil'nikov. "IMPROVEMENT OF THE OPERATING PROCEDURE OF WOOD HARVESTING AND TRANSPORTATION USING INFORMATION TECHNOLOGY." Forestry Engineering Journal 9, no. 4 (2020): 90–98. http://dx.doi.org/10.34220/issn.2222-7962/2019.4/10.

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Making the right management decisions in the logging industry is a complex multi-factorial task. The multivariance of solutions consists of various options for the application of technological chains of logging operations and timber transportation. Indeed, today the market offers a lot of options for systems of forestry machines, with or without forest storage with timber transportation at different seasons. Previous studies propose mathematical dependencies, an algorithm, and methods to solve all these problems. It makes it possible to search for the maximum flow of minimum cost in the dynami
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Kulak, Dariusz. "A comparison of methods to estimate harvest-induced damage to the soil using the example of a beech timber stand." Forest Research Papers 75, no. 3 (2014): 245–51. http://dx.doi.org/10.2478/frp-2014-0024.

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Abstract The study determines the extent of soil disturbances occurring during mechanised harvesting operations in a beech timber stand and investigates whether applying different research methods can be used to classify, in a comparable way, forest areas with different levels of soil damage. In the analysed stand, felling and on-side processing were conducted with chainsaws, while extraction - using an farm tractor. After the completion of logging operations, visible soil disturbances on each sample plot were measured, including surface area, volume and depth, and the value of five most commo
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Kulak, Dariusz. "A comparison of methods to estimate harvest-induced damage to the soil using the example of a beech timber stand." Forest Research Papers 75 (3) (September 1, 2014): 245–51. https://doi.org/10.2478/frp-2014-0024.

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The study determines the extent of soil disturbances occurring during mechanised harvesting operations in a beech timber stand and investigates whether applying different research methods can be used to classify, in a comparable way, forest areas with different levels of soil damage. In the analysed stand, felling and on-side processing were conducted with chainsaws, while extraction – using an farm tractor. After the completion of logging operations, visible soil disturbances on each sample plot were measured, including surface area, volume and depth, and the value of five most common i
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