The Influence of Mechanized Timber Harvesting on Soils and Stands

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Operations and Engineering".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 343

Special Issue Editors

Department of Forest Resources, Yeungnam University, Gyeongsan 38541, Republic of Korea
Interests: forest operation; steep-slope harvesting; cost analysis; environmental impacts; soil disturbance; runoff and soil loss; health and safety; simulator training

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Guest Editor
Laboratory of Forest Utilization, School of Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Interests: forest operations; biomass supply chains; forest utilization; ergonomics; occupational safety

Special Issue Information

Dear Colleagues,

Mechanized timber harvesting is widely used to improve efficiency, productivity, and operator safety; however, it can also often be a source of undesirable environmental impacts. Soil compaction, rutting, and structural disturbance from machine traffic degrade the physical, chemical, and biological properties of soils; reduce infiltration; limit root development; and hinder forest regeneration. Residual stand damage—such as bark wounds, stem breakage, and root exposure—can reduce stand value and increase susceptibility to pests and diseases.

With the expansion of harvesting on steep terrain, tethered logging systems or winch-assisted systems are increasingly being adopted. These technologies enhance machine stability and access on slopes, but their effects on soil and residual trees are not yet fully understood. Some evidence suggests potential benefits, but concerns remain regarding soil disturbance from cable tension and reduced maneuverability.

Although many studies have addressed the individual impacts of mechanized operations, integrated assessments under varied site and operational conditions remain limited. Yet, understanding these interactions is essential for sustainable forest management and in order to implement sustainable forest operations.

Consequently, this Special Issue invites original research on the effects of mechanized timber harvesting—especially on steep terrain—on soil properties and residual stand conditions. Submissions focusing on monitoring methods, mitigation practices, and innovative technologies to reduce environmental impacts are encouraged.

Dr. Eunjai Lee
Dr. Petros A. Tsioras
Guest Editors

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Keywords

  • sustainable forest management
  • steep slope harvesting
  • soil compaction
  • soil erosion
  • residual stand damage

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Published Papers (1 paper)

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Research

12 pages, 4449 KB  
Article
Soil Responses to Winch-Assisted Thinning Harvester Traffic on Steep Slopes in South Korea
by Eunjai Lee, Hyun-Min Cho, Ho-Seong Mun, Hyeon-Seung Lee, Jae-Heun Oh and Sang-Kyun Han
Forests 2025, 16(12), 1829; https://doi.org/10.3390/f16121829 - 6 Dec 2025
Viewed by 165
Abstract
Background: Winch-assisted harvesting is an alternative to traditional cable yarding on steep slopes, offering improved operational efficiency and fewer limitations. Knowledge on the effects of winch-assisted harvesting on soil disturbance are limited. This study aimed to assess the effects of winch-assisted and conventional [...] Read more.
Background: Winch-assisted harvesting is an alternative to traditional cable yarding on steep slopes, offering improved operational efficiency and fewer limitations. Knowledge on the effects of winch-assisted harvesting on soil disturbance are limited. This study aimed to assess the effects of winch-assisted and conventional tracked harvester operations on soil compaction and machine slippage in a clear-cut stand with sandy loam soil. Methods: We evaluated changes in soil physical properties, in depth and extent, along machine operating corridors with and without winch-assist across slope gradients ranging from 30% to 52% and up to three machine passes. Results: The relative increase in bulk density differed between treatments. In the non-assisted corridors, the bulk density increased by 18%, 12%, and 11% at depths of 0–10, 10–20, and 20–30 cm, respectively; the winch-assisted corridors showed smaller increases of 12%, 5%, and 3% at the corresponding depths. The winch-assisted plots did not show a significant reduction in rut depth compared with the non-assisted plots, a result likely influenced by site-specific dry soil conditions. Conclusions: These results highlight the potential of winch-assisted systems to reduce horizontal soil disturbance, though their effectiveness in limiting rutting remains variable under dry conditions. Full article
(This article belongs to the Special Issue The Influence of Mechanized Timber Harvesting on Soils and Stands)
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