DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata

Detalhes bibliográficos
Autor(a) principal: Acuña, Eduardo
Data de Publicação: 2018
Outros Autores: Sanfuentes, Eugenio, Cancino, Jorge, Mena, Pablo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/33386
Resumo: The effect of four harvesting systems for thinning tasks (harvester-forwarder, chainsaw-skidder, chainsaw-three-wheeled loader and chainsaw-yarder) was evaluated on percentage of damaged trees and damage surface. Additionally, the effect of the logging system and the season of the operation (winter and summer) on the incidence of damage and surface of the injuries, and their relation with tree diameter, was also analyzed. Of the four logging systems studied, those carried out with chainsaw-yarder and harvester-forwarder originated the greater incidence of damage with 34.5% and 32.2%, respectively, also producing the greatest injuries with 349.7 and 427.2 cm2, respectively, by individual tree. The season in which the operations were conducted is a factor that significantly affected on the increase of the number of trees with some sort of damage, with an average incidence of 27.1% in winter and 10.1% in summer. In addition, tree extraction with forwarder and yarder has a high potential for residual stand damage, and the stand structure was not affected by mechanized thinning, because there were damages in all sizes of remaining trees.
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spelling DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiataDANOS ÀS ÁRVORES REMANESCENTES POR QUATRO SISTEMAS DE COLHEITA MECANIZADA NO DESBASTE COMERCIAL DE Pinus radiataharvesting equipmentstem damageinjuriesharvest season.equipamento de colheitadano no troncolesõesépoca de colheita.The effect of four harvesting systems for thinning tasks (harvester-forwarder, chainsaw-skidder, chainsaw-three-wheeled loader and chainsaw-yarder) was evaluated on percentage of damaged trees and damage surface. Additionally, the effect of the logging system and the season of the operation (winter and summer) on the incidence of damage and surface of the injuries, and their relation with tree diameter, was also analyzed. Of the four logging systems studied, those carried out with chainsaw-yarder and harvester-forwarder originated the greater incidence of damage with 34.5% and 32.2%, respectively, also producing the greatest injuries with 349.7 and 427.2 cm2, respectively, by individual tree. The season in which the operations were conducted is a factor that significantly affected on the increase of the number of trees with some sort of damage, with an average incidence of 27.1% in winter and 10.1% in summer. In addition, tree extraction with forwarder and yarder has a high potential for residual stand damage, and the stand structure was not affected by mechanized thinning, because there were damages in all sizes of remaining trees.Quatro sistemas de colheita de madeira foram avaliados nas atividades de desbaste de povoamentos de Pinus radiata (harvester-forwarder, motosserra-skidder, motosserra-carregadora de três rodas e motosserra-yarder), considerando seu impacto no percentual de árvores e superfície afetada. Adicionalmente, foi analisado o efeito combinado do sistema colheita e estação do ano (verão e inverno), na incidência e área de injúria, e sua relação com o diâmetro das árvores. Entre os sistemas de colheita estudados, aqueles que utilizaram motosserra-yarder e harvester-forwarder tiveram maior incidência de injúria mecânica nas árvores, atingindo 34,5% e 32,2%, respectivamente; como também em uma maior área injuriada por árvore com 349.7 e 427.2 cm2, respectivamente. A estação do ano para as operações de colheita foi um fator que aumentou significativamente o número de árvores com algum nível de injúria, variando entre 27,1% no inverno e 10,1% no verão. Entretanto, o estudo mostrou também que a extração da árvore com o forwarder e yarder tem um alto potencial de dano residual no povoamento, sendo que sua estrutura não foi afetada pelo desbaste mecanizado, porque foram danificadas árvores em todas as classes de tamanho.Universidade Federal de Santa Maria2018-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/3338610.5902/1980509833386Ciência Florestal; Vol. 28 No. 3 (2018); 1317-1327Ciência Florestal; v. 28 n. 3 (2018); 1317-13271980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMenghttps://periodicos.ufsm.br/cienciaflorestal/article/view/33386/pdfCopyright (c) 2018 Ciência Florestalinfo:eu-repo/semantics/openAccessAcuña, EduardoSanfuentes, EugenioCancino, JorgeMena, Pablo2018-10-29T12:09:39Zoai:ojs.pkp.sfu.ca:article/33386Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2018-10-29T12:09:39Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
DANOS ÀS ÁRVORES REMANESCENTES POR QUATRO SISTEMAS DE COLHEITA MECANIZADA NO DESBASTE COMERCIAL DE Pinus radiata
title DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
spellingShingle DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
Acuña, Eduardo
harvesting equipment
stem damage
injuries
harvest season.
equipamento de colheita
dano no tronco
lesões
época de colheita.
title_short DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
title_full DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
title_fullStr DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
title_full_unstemmed DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
title_sort DAMAGE TO REMAINING TREES BY FOUR SYSTEMS OF MECHANIZED HARVEST IN COMMERCIAL THINNING OF Pinus radiata
author Acuña, Eduardo
author_facet Acuña, Eduardo
Sanfuentes, Eugenio
Cancino, Jorge
Mena, Pablo
author_role author
author2 Sanfuentes, Eugenio
Cancino, Jorge
Mena, Pablo
author2_role author
author
author
dc.contributor.author.fl_str_mv Acuña, Eduardo
Sanfuentes, Eugenio
Cancino, Jorge
Mena, Pablo
dc.subject.por.fl_str_mv harvesting equipment
stem damage
injuries
harvest season.
equipamento de colheita
dano no tronco
lesões
época de colheita.
topic harvesting equipment
stem damage
injuries
harvest season.
equipamento de colheita
dano no tronco
lesões
época de colheita.
description The effect of four harvesting systems for thinning tasks (harvester-forwarder, chainsaw-skidder, chainsaw-three-wheeled loader and chainsaw-yarder) was evaluated on percentage of damaged trees and damage surface. Additionally, the effect of the logging system and the season of the operation (winter and summer) on the incidence of damage and surface of the injuries, and their relation with tree diameter, was also analyzed. Of the four logging systems studied, those carried out with chainsaw-yarder and harvester-forwarder originated the greater incidence of damage with 34.5% and 32.2%, respectively, also producing the greatest injuries with 349.7 and 427.2 cm2, respectively, by individual tree. The season in which the operations were conducted is a factor that significantly affected on the increase of the number of trees with some sort of damage, with an average incidence of 27.1% in winter and 10.1% in summer. In addition, tree extraction with forwarder and yarder has a high potential for residual stand damage, and the stand structure was not affected by mechanized thinning, because there were damages in all sizes of remaining trees.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/33386
10.5902/1980509833386
url https://periodicos.ufsm.br/cienciaflorestal/article/view/33386
identifier_str_mv 10.5902/1980509833386
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/33386/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2018 Ciência Florestal
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Ciência Florestal
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Florestal; Vol. 28 No. 3 (2018); 1317-1327
Ciência Florestal; v. 28 n. 3 (2018); 1317-1327
1980-5098
0103-9954
reponame:Ciência Florestal (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Florestal (Online)
collection Ciência Florestal (Online)
repository.name.fl_str_mv Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br
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