Impact of operational factors on fossil energy inputs in motor-manual tree felling and processing: results of two case studies

Gheorghe Ignea; Mohammad R Ghaffariyan; S A Borz

doi:10.15287/afr.2016.705

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Impact of operational factors on fossil energy inputs in motor-manual tree felling and processing: results of two case studies

Journal article

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Impact of operational factors on fossil energy inputs in motor-manual tree felling and processing: results of two case studies

Gheorghe Ignea, Mohammad R Ghaffariyan and S A Borz

Annals of Forest Research, Vol.60(1), pp.161-172

2017

DOI: https://doi.org/10.15287/afr.2016.705

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Abstract

chainsaw

motor-manual felling and processing

direct fossil energy inputs

operational variables

selective cuttings

clear cuttings

In many cases tree felling and processing operations are carried out motor-manually and knowledge about fossil fuel consumption and direct energy inputs when using such equipment is required for different purposes starting with operational costing and ending with environmental assessment of forest operations. In this study, fuel mixture, chain oil and direct fossil energy inputs were evaluated for two chainsaws which were used to fell and process trees in two silvicultural systems. The results of this study suggest that there is a strong dependence relation between selected tree size variables such as the diameter at breast height and tree volumeon one hand and the fuel mixture, chain oil and direct fossil energy inputs when felling and processing broadleaved hardwood and resinous softwoodtrees on the other hand. For the broadleaved trees (mean tree volume of 1.50 m3 tree-1, DBH of 45.5 cm and tree height of 21.84 m) the mean direct fossil energy input was of 3.86 MJ m-3 while for resinous trees (mean tree volume of 1.77 m3 tree-1, DBH of 39.28 cm and tree height of 32.49 m) it was of 3.93 MJ m-3. Other variables, including but not limited to the technology used, work experience and procedural pattern, may influence the mentioned figures and extensive studies are required to clarify their effects.

Details

Title: Impact of operational factors on fossil energy inputs in motor-manual tree felling and processing: results of two case studies
Authors: Gheorghe Ignea (Author) - Forst Management Planning and Terrestrial Measurements, Romania
Mohammad R Ghaffariyan (Author) - University of the Sunshine Coast - Faculty of Arts, Business and Law
S A Borz (Author) - Transilvania University of Brasov, Romania
Publication details: Annals of Forest Research, Vol.60(1), pp.161-172
Publisher: Silvica Publishing House
Date published: 2017
DOI: 10.15287/afr.2016.705
ISSN: 1844-8135
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99451279902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Forestry

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