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Pertti Harstela

Jäljelle jäävä puusto ja ajouralta toimivat harvennuspuun korjuukoneet.

Harstela P. (1980). Jäljelle jäävä puusto ja ajouralta toimivat harvennuspuun korjuukoneet. Silva Fennica vol. 14 no. 1 article id 5059. https://doi.org/10.14214/sf.a15000

English title: Remaining trees and machines working from the strip roads in thinning.


In the first part of the study the hindrance of the remaining trees when felling trees by machines working from the strip road in selective thinning was studied on the basis of the literature. In the second part there was geometrically studied the need of schematic thinning in some type stands when bundles are pre-skidded straight-lined to the strip road. In average only 0-1 trees per pre-skidding trail needs to be removed. It was concluded that trees removed from the pre-skidding trail do not significantly increase the need of schematic thinning. Remaining trees do not limit the length of machine booms if the pre-skidding trails are planned during the felling.

The PDF includes a summary in English.

Original keywords
harvennushakkuu; ajourat; puunkorjuu; metsäkoneet; jäljelle jäävä puusto; valikoiva harvennus

English keywords
thinning; timber harvesting; strip roads; remaining trees; forest machines; skidding

Published in 1980

Available at https://doi.org/10.14214/sf.a15000 | Download PDF

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