Original scientific paper
https://doi.org/10.5552/crojfe.2023.1743
A Comparison of Two Felling Techniques Considering Stump-Height-Related Timber Value Loss
Neşe Gülci
; Kahramanmaras Sutcu Imam University Faculty of Forestry Avsar Mah. Bati Cevreyolu Blv. 46040 Onikisubat-Kahramanmaras TURKEY
Sercan Gülci
; Kahramanmaras Sutcu Imam University Faculty of Forestry Avsar Mah. Bati Cevreyolu Blv. 46040 Onikisubat-Kahramanmaras TURKEY
Abdullah E. Akay
; Bursa Technical Univesity Faculty of Forestry Eflak Cad. No:177 16310 Yıldırım-Bursa TURKEY
John Sessions
; Oregon State University College of Forestry 336 Peavy Forest Science Complex Corvallis OR 97331-5704 USA
Abstract
Harvest from plantations can provide both industrial wood and forest residues for bioenergy,
including stumps. The literature suggests that the choice of cutting system can affect the division
between industrial wood recovery and remaining stump volume. In this study, two
felling techniques - motor-manual chainsaw and feller-buncher, were compared based on
stump-height-related timber value loss for four ground slope classes: high, medium, low, and
flat. The economic value loss of wood material for three products - sawlogs, pulpwood, and
fiber-chip wood, was determined based on the estimated volume of stumps left in the woods.
The results indicated that the average stump height for the motor-manual chainsaw and fellerbuncher
was 17.16 cm and 8.69 cm. The economic value loss of wood material per stump was
higher in felling by manual chainsaw as compared to the feller-buncher operation (log: €0.60↑,
paper wood: €0.29↑, fiber-chip: €0.15↑). However, volume loss due to high stumps could
contribute to wood for bioenergy if stumps are subsequently removed. Additional research is
needed to evaluate the benefits and costs of stump removal for bioenergy as part of a total supply
chain to provide both industrial wood and wood for bioenergy.
Keywords
forest operation, biomass production, stump recovery, tree felling, brutian pine
Hrčak ID:
290879
URI
Publication date:
13.1.2023.
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