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Förröjningsstrategier vid förstagallring.: En jämförelseanalys mellan två olika förröjningsmetoder.
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. 9203045621.
2016 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The need for brushing before the first thinning has increased during the last few years. This brushing involves taking away small trees and bushes making it able for the harvester operator to see better and choose the correct trees to be harvested. In today’s silviculture the brushing is often neglected which means that the undergrowth becomes dense and leads to less efficiency for harvesters and a rise in costs. A well brushed first thinning will make the harvesting costs low and time efficient.

 

In brushing before the 1st thinning all stems below 9 cm d bh are traditionally taken down. This has a tendency to become stereotyped; i.e. brushes are also taken away in areas where  stronger nature conservation should be applied, as in wetlands, edge zones, etc. The harvester operator then gets stuck in these zones which threaten the biodiversity. 

 

This study aims at examining two different types of brushing methods before the thinning, the traditional one and another (new) method where environmental and nature protection aspects were taken into account to a greater degree; i.e. where more stems and undergrowth have been left over and edge zones were not brushed. The study results show that the latter one is to prefer as the more cost efficient one. It also protects the harvester to drive out into the edge zones. This method is also beneficial for the wildlife.

 

Most harvester operators were positive to a new brushing manual. 

Place, publisher, year, edition, pages
2016. , 38 p.
Keyword [en]
Brushing, first thinning, undergrowth, nature
National Category
Forest Science
Identifiers
URN: urn:nbn:se:lnu:diva-56990OAI: oai:DiVA.org:lnu-56990DiVA: diva2:998706
External cooperation
Sydved
Subject / course
Skogs- och träteknik
Educational program
Forest Production and Wood utilization Programme, 180 credits
Supervisors
Examiners
Available from: 2016-10-03 Created: 2016-09-29 Last updated: 2016-10-03Bibliographically approved

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fulltext(274 kB)126 downloads
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf