Results 11 to 20 of about 200 (116)
Jurnal Manajemen Hutan Tropika, 2023 Felling and skidding are essential in the timber extraction process. But on the other hand, residual stand damage can’t be avoided. This study aimed to analyze the impact of conventional and improved felling and skidding techniques on residual stands in
Yuniawati +2 more
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EVALUATING OF UPHILL TIMBER SKIDDING WITH FORESTRY TRACTOR
Middle East Journal of Science, 2016 In our country, timber haulage operations in forestry are mostly carried out with human power, animal power and tractors. The use of tractors are inevitable as it becomes impossible to uphill transport with human and animal power when the logs place under the road. For this reason, uphill cable pulling with forest tractor have been examined in terms of
GÜLCİ, Neşe +2 more
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Modeling the effect of wheeled tractors and skidded timber bunches on forest soil compaction [PDF]
Journal of Applied Engineering Science, 2021 An increasing demand for forest products incites a large number of log transportation operations, which may lead to negative consequences for the soil and the ecosystem as a whole. This paper is focused on establishing a mathematical model to estimate the soil deformation and compaction processes under tires of wheeled forest machines and individual ...
Grigorev, I. V. +7 more
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Productivity Analysis of Timber Skidding Operation with Farm Tractor
European Journal of Forest Engineering, 2018 Farm tractors equipped with necessary attachments have been widely used in skidding of forest products in Turkey. There are farm tractors of different types and sizes used in forest operations. For appropriate logging plans and better machine selections in mechanized forest operations, it is important to analyze the efficiency of farm tractors during ...
Gölci, Sercan +3 more
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Productivity of a Portable Winch System Used in Salvage Logging of Storm-Damaged Timber
Croatian Journal of Forest Engineering, 2019 Storm damages result in serious losses in many regions, primarily by stem breakage or blowdown. Extraction of storm-damaged trees often requires more difficult than normal skidding activities due to obstacles created during the storm.
Ebru Bilici +3 more
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Mengurangi keterbukaan hutan melalui teknik pemananenan kayu yang tepat di hutan alam
Jurnal Ilmu Lingkungan, 2021 Kegiatan pemanenan kayu memberikan kontribusi yang sangat besar terhadap produksi kayu. Pohon produksi yang berada di dalam hutan tidak dapat dimanfaatkan jika tidak ditebang dan tidak dikeluarkan dari dalam hutan.
Yuniawati Yuniawati +1 more
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Effects of tree-length timber skidding on soil compaction in the skid trail in Hyrcanian forests
Forest Systems, 2014 Aim of study: The study was conducted to examine impact of skidding traffic, trail slope, traffic frequency, and soil depth on the soil bulk density.Area of study: This study was carried out in the Kheyrud Forest in Hyrcanian forest, Iran.Material and methods: The level of soil compaction at eight levels of traffic (1, 4, 8, 10, 15, 20, 25, and 30 ...
Jourgholami, Meghdad +2 more
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WORK PHASES OF WOOD PRODUCTIVITY IN TURKEY
Forestist, 2006 Primery transportation is currently done at three different types in Turkey's forestry. These are human power. animal power and mechanization. Ground skidding by hand (man and gravitatiorı) is applied in forest areas for extraction of srnall amount of ...
Tolga ÖZTÜRK
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Effectiveness of branch mats in soil protection on skidding trails during timber forwarding
Sylwan, 2023 Mechanization of logging work, in addition to its undoubted advantages, such as increased safety and productivity, lower unit costs of timber harvesting, is also associated with negative consequences, which include adverse effects of noise and exhaust fumes, local oil pollution, damage to trees and soil.
Kulak, Dariusz +3 more
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Studies on Tanzanian forest work.
Silva Fennica, 1987 Four teams of two workers were time-studied in clearcutting of a cypress plantation and three teams in sulky skidding. The heart rate was recorded every 30 s. The average heartrate in timber cutting was 117.5 ± 13.4 P/min, and it was mainly dependent on
Saarilahti, M. +5 more
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