An overview of work productivity evaluation of farm tractors in timber skidding operations [PDF]
Silva Balcanica, 2022 Farm tractors have been applied in forest operations to carry out several tasks such as tree/felling/process-ing, forwarding, loading, skidding and cable yarding. Farm tractors can be equipped with special logging equipment that allows for their safe and
Mohammad Reza Ghaffariyan
exaly +6 more sources
Application of Cable-Railways for Timber Skidding
Izvestiya Vysshikh Uchebnykh Zavedenii, 2023 The article presents constraining factors of the use of traditional approaches for timber skidding in the winter logging period in the North-West Federal District of the Russian Federation.
Fedor V. Svoykin +4 more
exaly +4 more sources
Time consumption and productivity of skidding Silver fir (Abies alba Mill.) round wood in reduced accessibility conditions: a case study in windthrow salvage logging form Romanian Carpathians [PDF]
Annals of Forest Research, 2013 Natural calamities (especially windthrows) may generate difficultwork conditions in timber harvesting operations. When associated with the reduced accessibility conditions, the work conditions become even harder.
Stelian Alexandru Borz +5 more
doaj +5 more sources
Modelling of Downhill Timber Skidding: Bigger Load – Bigger Slope [PDF]
Croatian Journal of Forest Engineering, 2016 Skidder mobility during timber extraction is defined by: 1) basic dimensional features of the vehicle, 2) ability to overcome obstacles during movement, 3) traction performance and 4) environmental soundness.
Andreja Đuka +3 more
doaj +3 more sources
Forces Affecting Timber Skidding
Croatian Journal of Forest Engineering, 2009 The research was carried out on the strip road where longitudinal slopes were determined by the leveling method as well as individual distances of the strip road of uniform slope.
Željko Tomašić +3 more
doaj +3 more sources
Comparison of Timber Extraction Productivity between Winch and Grapple Skidding: A Case Study in Southern Italian Forests [PDF]
Forests, 2018 Forests in southern Italy are mainly located in mountainous areas, where ground-based extraction is still the most common harvesting technique. In particular, 60% of southern Italy’s forests are on slopes with an angle of inclination between 20–60%. The low level of mechanization in forest operations is due to the difficult site conditions, as well as ...
Giuseppe Zimbalatti +2 more
exaly +3 more sources
Soil compaction in timber skidding in winter conditions
Croatian Journal of Forest Engineering, 2006 The research of soil compaction in timber skidding was carried out on two skid trails of uniform slope –15%and 30 %. The degree of soil compaction is shown by changes of water-air soil characteristics of the skid trail after a certain number of passes of
Dubravko Horvat +2 more
doaj +6 more sources
Attachment energy saving gripping device for chokerless timber skidding when thinning
Forestry Engineering Journal, 2014 Hydrokinetic diagram of the device for chokerless skidding is presented. Chokerless device for logging includes a frame, capture with two jaws and hydraulic cylinder of jaw gripping attached to the hinged system of tractor, linked via a double-hinged capture unit to one end of the bell crank, and between the second end of the bell crank and the frame ...
Valeriy Posmetev, V Zelikov
exaly +2 more sources
Assessment of timber extraction distance and skid road network in steep karst terrain [PDF]
iForest - Biogeosciences and Forestry, 2017 This study aims to define a simple and effective method to calculate skidding distances on steep karst terrain, rich in ground obstacles (stoniness and rockiness) to support decision planning of secondary and primary forest infrastructure network for ...
Duka A +4 more
doaj +3 more sources
Designing Skid-Trail Networks to Reduce Skidding Cost and Soil Disturbance for Ground-Based Timber Harvesting Operations [PDF]
Forest Science, 2016 Woodam Chung, Chung Woodam
exaly +2 more sources