2021 “Forest Engineering Family – Growing Forward Together” – Online

2021- Forest Engineering Family – Growing Forward Together

Proceedings of The Joint 43rd Annual Meeting of Council on Forest Engineering (COFE) & the 53rd International Symposium on Forest Mechanization (FORMEC)

September 27-30, 2021
Corvallis, Oregon, U.S.A.

Woodam Chung, John Sessions, Kevin Lyons, and Karle Wigginton

11.9 MB


Keynote Presentations

  • Digital learning as an opportunity for forestry qualification as a European task – Lea Schmeil and Andrea Teutenberg
  • How will COVID-19 Change Forestry Education? A Case Study of US Forest Operations Instructors – Elizabeth Dodson and Charles Blinn
  • The Economic Potential for Tele-extraction of Roundwood in Sweden – Mikael Lundbäck, Dag Fjeld, Carola Häggström, and Tomas Nordfjell
  • Assistance System for an Automatic Loading Process – Chris Geiger, Michael Weißenböck, and Marcus Geimer
  • The Role of Forest Engineering in Curbing Climate Change – Rene Zamora Cristales
  • Integrating Forest Biomass into Regional-scale Multi-feedstock Supply Chain Models – Nathaniel Anderson, Matt Thompson, Jingxin Wang, and Damon Hartley 

Theme 1: Human Factors and Safety

  • An Ergonomics Risk Assessment of Manual and Motor-Manual Pruning of Pinus patula at Two Different Lifts – Zimbili Sibiya, Pierre Ackerman, Nonkululeko Ntinga, Simon Ackerman
  • A Question of Business Culture – Multi-methodical Analysis of Forest Work Accidents – Hannes Weinbrenner, Svenja Bonadio, Stephanie Bethmann, Susanne Kaulfuss, Udo H. Sauter
  • Decision-Making Among Harvester Operators in Tree Selection and Need for Advanced Harvester Operator Assistant Systems (AHOASs) in Thinnings – Kalle Kärhä, Heikki Ovaskainen, Teijo Palander
  • The Permanent German Forest Rescue Point System – Concept, Geographical Analysis, and Optimization – Thomas Purfürst
  • Ergonomic assessment of motor-manual tree felling and processing operation: a comparison in damaged and undamaged forest stands – Francesco Sforza, Alberto Cadei, Luca Marchi, Raffaele Cavalli, Stefano Grigolato
  • Fully Mechanized Pruning with the PATAS Module – A Joint Study in Northern Germany on Productivity and Ergonomics – Florian Hartsch, Dirk Jaeger, Tim Jordan
  • A search for beneficial work practices of forest machine operators – interviews with forest machine instructors and scientific literature search – Felix A. Dreger, Florian Hartsch, Martin Englund
  • Exoskeletons in forest work – Henrik Brokmeier, Marius Kopetzky, Dirk Jaeger
  • Hazard recognition and risk assessment by cable logging rigging crews – Kevin Lyons, Jeffrey Wimer, John Sessions
  • Shift Work, Fatigue and Cardiovascular Risk Factors among Maine’s Logging Workforce – Erika Scott, Liane Hirabayashi, Judy Graham
  • Comparison of battery driven and gasoline driven brush cutters in terms of efficiency and ergonomic effects – Christoph Huber, Nikolaus Nemestóthy, Jürgen Richter
  • Promoting Occupational Safety and Health in Motor-Manual Tree Felling: A Postural Analyses – Efi Yuliati Yovi
  • Logging Practice in Indonesian Natural Forests: Adoption of Personal Protective Equipment Associated with Worker Safety – Hermudananto Hermudananto
  • Important considerations for using mobile and wearable device sensors to model worker productivity and develop digital health and safety applications for motor-manual operations – Robert F. Keefe, Eloise G. Zimbelman

Theme 2: Education, Training and Workforce Development

  • Exploring the need for feedback on performance – interviews with harvester operators – Karin Ågren, Maria Nordström, Martin Englund, Florian Hartsch, Felix Dreger, Even Hoffart, Eva Skagestad, Ole Bertil Reistad
  • Implementing VR and gamification in forestry education – Nopparat Kaakkurivaara
  • Developed collaboration in contractor forestry – an intervention in relational development – Lotta Woxblom, Christer Sandahl
  • European Chainsaw Certificate and European Machine operator Certificate: Experiences from skills assessments for forest operations – Edgar Kastenholz, Jessica Schmidt, Andrea Teutenberg
  • Stand-specific working methods for harvester operators: A simulation study – Simon Schmiedel, Daniel Beaudoin, Mikael Rönnqvist
  • Forestry sector employment, wage and safety data from public sources in the USA – Mathew Smidt, Dana Mitchell, Mingtao He, Yaoqi Zhang

Theme 3: Inventory, Remote Sensing and Precision Technology

  • Quality Certification of Tree Measurement by Harvester – Reliability of Harvester Report Data to Provide Digital Information for an Efficient Wood Supply Chain – Hans-Ulrich Dietz, Gerrit Balindt, Thomas Purfürst
  • Opportunities for Acoustic Technologies in the Wood Supply Chain – Dana Mitchell, Mathew Smidt, Munkaila Musah, Brian Via
  • Post-thinning evaluation of harvester operator consistency and adaptability using UAV derived imagery  – Hugo Zandberg, Munyaradzi Makoto, Simon Ackerman, Bruce Talbot
  • Verification Study of Measuring Tools in Processing Heads – Marisa Sitanggang, Tom Gallagher, Dana Mitchell, Timothy McDonald
  • A comparison of pre-harvest TLS based inventory data with harvesting-head measured outcomes in mature pine stand – Anton Kunneke, Simon Ackerman, Bruce Talbot
  • Image based analysis of surface unevenness and its applicability in an operational setting – Bruce Talbot
  • General data protection conditions for motor-manual timber harvesting in forestry 4.0 – Michael Ottl, Dirk Jaeger, Ulrich M. Gassner
  • Automatic detection of decay and resin in felled Scots pine stems using convolutional neural networks – Eero Holmström, Antti Raatevaara, Jonne Pohjankukka, Tuula Piri, Juha Honkaniemi, Jori Uusitalo, Mikko Peltoniemi, Aleksi Lehtonen
  • GreenLane IBM – Insect, Blue stain and Moisture content prediction for enhanced value tracking in supply chain simulation – Christian Kanzian, Thomas Holzfeind, Peter Baier, Thomas Kirisits, Lone Ross Gobakken, Dag Fjeld
  • Use of harvester data to estimate non-utilized merchantable volume of coniferous trees remaining after mechanized cut-to-length forest operations – Myriam Delmaire, Eric R. Labelle
  • Positioning accuracy of Cut-to-length (CTL)-harvester integrated Global Navigation Satellite Systems during a thinning operation – Kari Väätäinen, Antero Kukko, Harri Kaartinen, Mikko Vastaranta, Antti Raatevaara, Perttu Anttila, Eero Holmström, Robert Prinz, Ville Kankare, Tuomas Yrttimaa, Johanna Routa 
  • Performance of dedicated UHF RFID tags in timber automatic identification – Gianni Picchi, Carla Nati
  • Influence of UAV flight parameters on the quality of terrain models – Dariusz Pszenny, Tadeusz Moskalik
  • Stack volume accuracy of broadleaved tree species – Ferréol Berendt, Tobias Cremer
  • Analysis of the influence of log parameters on the conversion factors for wood stacks using a novel 3-D simulation model – Felipe de Miguel Diez, Tim Pettenkofer, Thomas Purfürst, Eduardo Tolosana Esteban, Tobias Cremer
  • Operational Evaluation of the Three-rows Automated Irrigator – Guilherme Oguri, Júlia Ifanger Faria, Saulo Philipe Sebastião Guerra

Theme 4: Supply Chain and Logging Industry

  • A Review of Data and Information Acquisition Opportunities to Improve Predictability of Forest Supply – Olivier Couture, Luc LeBel, Daniel Beaudoin
  • What can we learn with forest entrepreneurs? A literature review – Jean-Michel Beaudoin, Luc Lebel, Noemie Beaudet
  • Business success factors of Latvian and Swedish forestry contractors – Janis Gercans, Kalvis Kons, Thomas Kronholm
  • Managing the performance of forest entrepreneurs for increased wood supply predictability: a fleet approach – Gabriel Verret, Luc LeBel, Eric R. Labelle
  • Workflow variations in harvesting services – a case study on the need to manage flexibility – Malin Johansson , Emanuel Erlandsson, Thomas Kronholm, Ola Lindroos
  • The Impact of COVID-19 on the Northeast and Appalachian Logging Industry – Erika Scott, Liane Hirabayashi, Judy Graham
  • Survey of harvesting capacities and forest maintenance capacities of Austrian forest enterprises and forest entrepreneurs as well as development of a database as an information system for forest management – Nikolaus Nemestóthy, Christoph Huber, Jürgen Richter, Mathias Loidl

Theme 5: Harvesting and Processing

  • Benchmarking operational conditions, productivities and costs of harvesting from industrial plantations in different global regions – Fulvio Di Fulvio, Mauricio Acuna, Pierre Ackerman, Simon Ackerman, Raffaele Spinelli, Dalia Abbas, Sandra Sánchez, Nopparat Kaakkurivaara, Saulo Guerra
  • Development of a Modality-Invariant Multi-Layer Perceptron to Predict Operational Events in Motor-Manual Willow Felling Operations – Stelian Alexandru Borz
  • Testing the Capability of Low-Cost Tools and Artificial Intelligence Techniques to Automatically Detect Operations Done by a Small-Sized Manually Driven Bandsaw – Marina Viorela Marcu, Marius Cheta, Eugen Iordache, Stelian Alexandru Borz
  • Evaluation of the mechanized CTL harvesting system in different geometric thinning operations in terms of productivity and residual stand damage – Munyaradzi Makoto, Bruce Talbot, Simon Ackerman
  • Battery vs. petrol chainsaws: a cutting time comparison on different tree species – Andrea Laschi, Francesco Neri, Cristiano Foderi,Fabio Fabiano, Niccolò Frassinelli, Elena Marra, Enrico Marchi
  • Comparative analysis of commercial thinning operations in BC and other jurisdictions –  Juliana Magalhães, Omar Mologni, Camilla Moioli, Steffen Lahrsen, Eric Nance, Jodi Axelson, Ken Byrne, Lauri Sikanen, Hannu Salminen, Leena Leskinen, Dominik Roeser
  • Simulating the difference between forwarding short and normal length timber – Simon Berg
  • Key Factors influencing Productivity of Whole Tree Ground-Based Felling Equipment – Steffen Lahrsen, Juliana Magalhães, Omar Mologni, Dominik Röser
  • Assessment of timber felling techniques for a reduced harvesting impact in the secondary Atlantic Forest, southern Brazil – Pedro Britto, Dirk Jaeger, Stephan Hoffmann, Renato C. Robert, Alexander C. Vibrans, Alfredo C. Fantini
  • Productivity and Cost of Mechanized Harvesting in Large-Dimension Hardwoods – Effects of Machine Type and Harvesting Season – Herbert Borchert, Eric R. Labelle, Peter Aurenhammer, Lorenz Breinig, Raffaele Spinelli, Natascia Magagnotti
  • Influence of Loading Distance, Loading Angle and Log Positioning on Time Consumption of Forwarders Loading Cycles: A Pilot Study in Germany – Florian Hartsch, Marian Schönauer, Lorenz Breinig, Dirk Jaeger
  • Integrated in-stand debarking with harvester in cut-to-length operation – Franz Holzleitner, Thomas Holzfeind, Stefan Messner, Christian Kanzian
  • Effective small scale harvesting and forwarding in industrial plantation first thinning operations – Simon Ackerman, Heather McDermid, Pierre Ackerman, Marius Terblanche
  • Historical transition of logging methodology in Turkey, the example of Zingal to Ayancik – Ugur Yildiz, Arif Oguz Altunel
  • Automated Driving on a Skid Road with a Forwarder in a CTL Logging Process – Chris Geiger, Sebastian Beiser, Marcus Geimer
  • Artisan Forestry: Draft animals and low impact mechanization in upland Family Forests – Ian Snider
  • The potential of mini forestry crawlers to support mechanized harvesting operations at extended machine operating trail spacing – Ferréol Berendt, Stephan Hoffmann, Dirk Jaeger, Janine Schweier
  • Predicting productivity of skidders in Eucalypt plantations – Mohammad Reza Ghaffariyan 

Theme 6: Steep Slope Harvesting

  • Stability assessment of natural anchors for swing yarders in Coastal British Columbia – Luca Marchi, Omar Mologni, Eric Nance, Dominik Roeser, Raffaele Cavalli, Stefano Grigolato
  • Idaho Steep Slope Harvesting: Tracks, Tires, and Tethering – Austin Finster, Woodam Chung, Brett Morrissette
  • Cable tensile forces in active winch-assist harvesting: two case studies from the Pacific North West – Omar Mologni, Kevin Lyons, Eric Nance, Luca Marchi, Dzhamal Amishev, Stefano Grigolato, Raffaele Cavalli, Dominik Roeser
  • Opening Up and Harvesting Systems in Mountainous and Semi-Mountainous Areas of Greece – Ioannis Koukoulos, Vasileios Drosos, Georgios Tasionas, Iordanis Kasapidis, Ioannis Sismanidis,
  • Energy efficiency, fuel consumption, and productivity of cable yarding operations using hybrid tower yarder and electrical carriage in the North-Eastern Italian Alps – Alberto Cadei, Omar Mologni, Dominik Röser, Raffaele Cavalli, Stefano Grigolato
  • Conventional single-hitch vs. horizontal double-hitch suspension in cable yarding operations – Raffaele Spinelli, Natascia Magagnotti, Giulio Cosola, Stefano Grigolato, Luca Marchi, Andrea Rosario Proto, Eric Labelle, Rien Visser, Gernot Erber
  • A QGIS Plugin for the design of cable roads with a standing skyline configuration – Leo Bont, Patricia Moll, Laura Ramstein, Fritz Frutig, Hans Rudolf Heinimann, Janine Schweier
  • A Mobility Model for a Tethered Skidder – John Sessions, Jeff Wimer
  • The changes of cable extraction technologies in South Korea from 2000 to 2020 – Eunjai Lee, Yun-Sung Choi, Min-Jae Cho, Ho-Seong Mun, Koo-Hyun Cho, Jae-Heun Oh
  • TVS20, a multifunction tool to up-grade an excavator into a versatile winch-based haulage equipment for hard-to-reach areas: Lessons learnt from 6 operations with the prototype – Philippe Ruch, Nicolas Vigneau, Hubert Loye, Damien Francois, Xavier Montagny, Olivier Santini, Morgan Vuillermoz
  • Deadman anchoring design for cable logging: a new approach – Francisca Belart, Ben Leshchinsky, Jeff Wimer

Theme 7: Harvest Operations Planning

  • Rationale and Decision-Making in Choice of Effective Timber Harvesting Technology – Borys Bakay, Stanislav Horzov, Mykola Adamovskyy, Ihor Rudko
  • Representation and Analysis of Logging Operation System by Queueing Theory – Kengo Ino, Toshio Nitami
  • An efficient decision support tool for forwarding operations – Linnea Hansson, Victoria Forsmark, Patrik Flisberg, Mikael Rönnqvist, Petrus Jönsson, Anders Mörk
  • Economies of scale in forest harvesting operations – Mauricio Acuna, John Sessions
  • Modeling approaches for harwarders in forest operations – Rikard Jonsson, Mikael Rönnqvist, Ola Lindroos, Patrik Flisberg, Petrus Jönsson
  • Optimization of primary extraction routes – Mikael Rönnqvist, Erik Willen, Patrik Flisberg, Mikael Frisk, Gustav Friberg

Theme 8: Forest Roads

  • Machine vision based water-logged area detection for gravel road condition monitoring – Michael Starke, Philippe Aebischer
  • Technical aspects and costs to determine the density of forest roads – Felipe Faria, Cristiano Miers, Reinaldo Correia, Eduardo Lopes, Jean Sampietro, Gabriella Zanco
  • Forest Roads Optimization: people, processes and tools – Felipe Faria, Gabriella Zanco, Arnaldo Gunzi, Andreia Pimentel, Yasmin Rocini, Huoliver Correa, Eduardo Macedo
  • Forest road availability – inferences from logging truck delivery messages – Dag Fjeld, Jan Bjerketvedt, Martin Bråthen
  • Forest Road Costing Tools – Matthew Dickie, Craig Speirs
  • The effect of the triangulated irregular network on solutions in forest road network layout planning – Mstislav Simonenkov, Anastasiia Simonenkova, Ivan Bacherikov

Theme 9: Log Transportation

  • Technical-economic analysis of an in-motion weight measurements system applied to wood transportation in Italy – Stefano Grigolato, Stefano Montibeller, Stefania Minati, Raffaele Cavalli
  • Towards Better Environmental Performance in Timber Trucking with High Capacity Transports (HCTs) in Finland – Kalle Kärhä, Emma Kortelainen, Antti Karjalainen, Hanna Haavikko, Teijo Palander
  • Automated volumetric measurements of truckloads using sensing technology, computer vision, and artificial intelligence – Borja Garcí¬a-Pascual, Mauricio Acuna
  • A common Nordic-Baltic costing framework for road, rail and sea transport of roundwood – Dag Fjeld, Kari Väätäinen, Henrik von Hofsten, Daniel Noreland, Ingeborg Callesen, Andis Lazdins
  • Cost analysis of timber transportation using pgRouting – Laddawan Rianthakool, Wanchai Arunpraparut, Piyawat Diloksumpun, Nopparat Kaakkurivaara
  • Timber transport planning for forest trucks and semi-trailers – Peter Rauch, Christoph Kogler, Alexander Stenitzer
  • Stakeholder Perceptions of Potential Weight Limit Increases in Georgia, USA – Joseph Conrad
  • Comparison of Log Truck Crash Rates, Severity, and Contributing Factors Before and Weight Limits Increases in Two Southern States, USA – Joseph Conrad

Theme 10: Environmental Impacts

  • Fuel Consumption, Greenhouse Gas Emissions, and Energy Efficiency in Cut-to-length Logging Operations: A Case Study in Finland – Hanna Haavikko, Kalle Kärhä, Asko Poikela, Mika Korvenranta, Teijo Palander
  • Vehicle -induced disturbances of forest soils – a deeper look – Hans R Heinimann
  • Spatio-temporal prediction of soil strength using open access data and a Random Forest model – Marian Schönauer, Kari Väätäinen, Harri Lindeman, Robert Prinz, Dariusz Pszenny, Martin Jansen, Joachim Maack, Bruce Talbot, Rasmus Astrup, Dirk Jaeger
  • Evaluating possibilities for developing dynamic soil moisture maps using hydrological modelling – Sima Mohtashami, Tomas Thierfelder, Lars Eliasson, Johan Sonesson
  • Assessment of Rut Formation via Cross-sectional Profile and 3D Digital Model – Benjamin Engler, Thomas Purfürst
  • Comparison of soil damages between forwarding and skidding during wood extraction –  Elena Marra, Christian Höök, Enrico Marchi, Tomas Nordfjell
  • Tethering forest machines in flat terrain: effects on wheel slip and rut formation – Lorenz Breinig, Bastian Hinte, Henrik Brokmeier, Marian Schönauer, Stephan Hoffmann, Dirk Jaeger
  • Modelling rut formation on peatland related to soil conditions and forwarder design – Jari Ala-Ilomäki, Harri Lindeman, Blas Mola-Yudego, Robert Prinz, Kari Väätäinen, Bruce Talbot, Johanna Routa
  • Forestry Best Management Practice Implementation and Erosion Rates by State and Regulatory Approach in the Southeastern United States – Brent Hawks, Michael Chad Bolding, Wallace Michael Aust, Scott Barrett, Jonah Fielding

Theme 11: Forest Biomass and Bioenergy 

  • Mulching of harvesting residues after clearfelling in Pine and Eucalyptus stands; a comparison of productivity, costs, and CO2 emissions – Leeshan Mahadeo, Simon Ackerman, Bruce Talbot
  • Harvest Residue Emissions Estimates and Bioeconomy Opportunities in British Columbia – Eric Nance, Sheng H. Xie, Ben Hudson, Dominik Roeser, Werner A. Kurz
  • Flexible planning model to manage fire risk in forest-to-bioenergy supply chain – Reinaldo Gomes, Alexandra Marques, Paulo Fernandes
  • Investigation & Comparison of Three PTO Chippers for Small-Scale Operations – Sabrina St-Onge
  • Linking Forests and Cities: Market Impacts of Biomass Heating and Sustainable Forest ManagementWood Fuel Logistics and Carbon Performance – Brandon Bung, Dominik Roeser, Gary Bull, Jamie Stephen, Sheng Xie
  • Forest biomass collection from systematic mulching on young and dense stands in Spain – Eduardo Tolosana, Teresa de la Fuente, Rubén Laina, Mihail Manea, Pedro Pérez, Raquel Bados, Gonzalo Piñeiro
  • Projecting Future Procurement Potential of Forest Resources Using Swedish Forest Inventory Data – Kalvis Kons, Dimitris Athanassiadis
  • Quantifying the Life Cycle Impacts of Forest Logging Residue Logistics – Xufeng Zhang, Jingxin Wang, John Vance
  • Evaluation of an improved concept enabling large-scale storage of Wood chip and bark – Erik Anerud, Anders Eriksson
  • Fuel quality and dry matter losses of stored wood chips – Influence of cover material – Erik Anerud, Dan Bergström, Johanna Routa, Lars Eliasson
  • Comparison of cost-efficiency of innovative and conventional supply systems for small trees and shrubs in Sweden, Finland, Slovenia and Spain – Dan Bergström, Teresa de la Fuente, Raul Fernandez Lacruz, Yrjö Nuutinen, Matevž Triplat
  • Biomass harvesting amidst market and policy constraints: perspectives of foresters and loggers in the Northeastern United States – Libin Thaikkattil Louis, Adam Daigneault, Anil Raj Kizha
  • Evaluating the Productivity and Costs of Five Energywood Harvesting Operations in the Lower Mid-Atlantic Region of the US – Austin Garren, M. Chad Bolding, W. Michael Aust, Scott Barrett, T. Adam Coates
  • Innovative duplex spiral chipper – trials for comminution, fuel properties, storability, technical drying, conveyability and combustion of a novel wood fuel – Simon Lesche, Daniel Kuptz, Claudia Schön, Christian Albersinger, Hans Hartmann
  • Flexible planning model to manage fire risk in forest-to-bioenergy supply chain – Reinaldo Gomes, Alexandra Marques, Paulo Fernandes
  • Estimating available unused dead wood materials for heat generation in Mongolia: How much coal can unused dead wood materials substitute? – Biligt Battuvshin, Yuta Ikeda, Hiroaki Shirasawa, Ganbaatar Chultem, Futoshi Ishiguri, Kazuhiro Aruga
  • Forest Residue Harvesting and Logistics – Luke Chasuk, Tom Gallagher, Richard Cristan, Dana Mitchell, Marissa Daniel

Poster Presentations

  • Acoustic analysis of forestry work – Richard Parker, Brionny Hooper, Brooke O’Connor
  • Biofeedback on forestry machine operators – Brooke O’Connor, Richard Parker, Brionny Hooper
  • Assessment of physical risks in emergency vehicles used in rural areas, Northern Brazil – Roldão Carlos Andrade Lima, Luciano José Minette, Stanley Schettino, Glicia Sivania Pedroso Nascimento, Denise Ransolin Soranso, Wanderson Lyrio Bermudes
  • GNSS Positioning and Accuracy of New Dual- and Tri-Frequencies Smartphones under Forest Canopies – Thomas Purfürst
  • Automating the characterization of log inventories at roadside – Samuel Pilote, Daniel Beaudoin, Eric R. Labelle
  • Simulation tool to analyze the silvicultural results of conceptual autonomous tree planting machines: a sub-study of the Swedish AutoPlant project – Jussi Manner, Anders Eriksson, Linnea Hansson, Back Tomas Ersson
  • Comparing the cost of cardboard box concepts that increase the productivity of tree planting machines: a case study from southern Sweden – Back Tomas Ersson, Jussi Manner, Lars-Göran Sundblad
  • Does the damage caused by harvester head feed rollers have an impact on the moisture content of wood? – Karol Tomczak, Arkadiusz Tomczak
  • Saplings extractor for mechanized planting – Radomir Ulrich, Ladislav Zverina, Lubos Stanek
  • Performance of small-sized harvesting system for single tree selection thinning of Quercus acuta using an excavator-based grapple machine and a winch-mounted mini-forwarder  Yasushi Suzuki, Tetsuhiko Yoshimura, Kai Moriguchi, Yoshifumi Hayata, Mitsuharu Urabe, Kiyomitsu Imayasu
  • Log shape segmentation by deep learning for autonomous log loading – Kengo Usui
  • Towards as usable roll-over protection system for quadbikes – Carola Häggström, Björn Edlund, Thomas Kronholm, Tomas Nordfjell, Peter Lundqvist
  • A new type of renewable energy source derived from forestry – Radomir Ulrich, Lubos Stanek, Ladislav Zverina
  • New slinging technique for rope-assisted felling on steep slopes – Paul Halder, Thomas Fillbrandt, Purfürst Thomas
  • Optimization of yarder productivity based on the maximization of cable payload in forestry steep terrain operations – Claudio Parada, Rafael Epstein
  • Mechanism and Operation design by 3D Modeling for Cable Yarding – Toshio Nitami
  • Salvage Logging in the sensitive forest: evaluation of productivity and costs in cable yarding operations – Salvatore F. Papandrea, Stanimir Stoilov , Georgi Angelov , Stelian Alexandru Borz, Giuseppe Zimbalatti , Andrea R. Proto
  • Economic viability of the full-tree harvest under conditions of uncertainty: a study in the southeastern region of Brazil – Qüinny Soares Rocha, Roldão Carlos Andrade Lima, Rafaele Almeida Munis, Danilo Simöes
  • Artificial intelligence for the recognition of roads from photointerpretation – Gabriella Zanco, Felipe Faria, Arnaldo Gunzi, Andreia Pimentel, Eduardo Macedo, Clewerson Scheraiber, Carlos Henrique Silva
  • Forest Road Route Design by Point Sequence Approximation Approach – Vladimir Nikitin, Maxim Bykovskiy, Marina Mukovnina, Eugene Tihomirov
  • Road network planning for tourism development in Arasbaran forest – Manijeh Talebi, Baris Majnounian, Majid Makhdoum, Ehsan Abdi, Mahmoud Omid
  • Evaluation of soil compaction caused by different wood extraction methods  – Maria F. Cataldo, Salvatore F. Papandrea, Andrea R. Proto, Giuseppe Zimbalatti
  • Forest road damages caused by heavy rains in Nikko and Kanuma areas of Tochigi prefecture, Japan – Kazuhiro Aruga, Taisei Sekiguchi, Yasuhiro Shuin
  • Profitability of hardwood harvesting operations in Tochigi prefecture, Japan – Kazuhiro Aruga, Yoshino Tsukahara, Yusuke Matsuoka
  • Can the terrestrial laser scanner become a widely used tool for estimating biomass production from hybrid poplar crops? – Iulian Constantin Danila