Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp.
Ano de defesa: | 2010 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Florestal
|
Departamento: |
Recursos Florestais e Engenharia Florestal
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/8667 |
Resumo: | This study was developed with the objective to determinate the longitudinal deformations (DRL) resulting from growth stresses in standing and living trees in different clones of Eucalyptus spp. To do this, 12 clones of 9 years-old Eucalyptus spp., were selected, through annual increment means, which were planted at a spacing of 3.0 x 2.7 m. For measurements the variables of this research, 12 trees of each clone were selected, which the some variables were measured: basic density, bark thickness, diameter and total height. The measurements of longitudinal residual strain (DRL) were made in living trees with the extensometer (Growth Strain Gauge) using the CIRADForêt method. The readings were taken at four locations around the trunk of the tree following the guidance of planting (row, between rows). The measurements in the presence of winds were avoid, because with the movement of the tree, the support forces swing inside the trunk, changing the value recorded on the device. For levels of DRL, the results obtained in the study indicated that the clones had large variations between each other, and these had an average value considered high when compared with the literature. The clone 8 produced the lowest levels of deformation and it was considered an excellent genetic material. The clone 1 obtained the highest values of DRL. DRL variation occurred along the circumference of the tree trunk, and it was more pronounced on the east position. Analyzing the correlations among variables, it was found that the DRL was significantly correlated with the bark thickness, diameter and volume of standing tree. Basic density and height didn t have influence on the longitudinal residual strain. Some regression models were adjusted for DRL according to the bark thickness, diameter, height and volume to explain the behavior of this variable for each clone. Just for the basic density was not possible to set a significant model. |
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2010-05-312010-05-312010-03-03BELTRAME, Rafael. DETERMINATION OF LONGITUDINAL RESIDUAL DEFORMATION DUE TO THE STRESS OF GROWTH IN Eucalyptus spp.. 2010. 81 f. Dissertação (Mestrado em Recursos Florestais e Engenharia Florestal) - Universidade Federal de Santa Maria, Santa Maria, 2010.http://repositorio.ufsm.br/handle/1/8667This study was developed with the objective to determinate the longitudinal deformations (DRL) resulting from growth stresses in standing and living trees in different clones of Eucalyptus spp. To do this, 12 clones of 9 years-old Eucalyptus spp., were selected, through annual increment means, which were planted at a spacing of 3.0 x 2.7 m. For measurements the variables of this research, 12 trees of each clone were selected, which the some variables were measured: basic density, bark thickness, diameter and total height. The measurements of longitudinal residual strain (DRL) were made in living trees with the extensometer (Growth Strain Gauge) using the CIRADForêt method. The readings were taken at four locations around the trunk of the tree following the guidance of planting (row, between rows). The measurements in the presence of winds were avoid, because with the movement of the tree, the support forces swing inside the trunk, changing the value recorded on the device. For levels of DRL, the results obtained in the study indicated that the clones had large variations between each other, and these had an average value considered high when compared with the literature. The clone 8 produced the lowest levels of deformation and it was considered an excellent genetic material. The clone 1 obtained the highest values of DRL. DRL variation occurred along the circumference of the tree trunk, and it was more pronounced on the east position. Analyzing the correlations among variables, it was found that the DRL was significantly correlated with the bark thickness, diameter and volume of standing tree. Basic density and height didn t have influence on the longitudinal residual strain. Some regression models were adjusted for DRL according to the bark thickness, diameter, height and volume to explain the behavior of this variable for each clone. Just for the basic density was not possible to set a significant model.O presente estudo foi desenvolvido com o objetivo de determinar as deformações residuais longitudinais (DRL), decorrentes das tensões de crescimento em árvores em pé e vivas de diferentes clones de Eucalyptus spp. Para tanto, foram selecionados 12 clones do gênero Eucalyptus com 9 anos de idade, por meio da área basal (G), sendo, estes, plantados em um espaçamento 3,0 x 2,7 m . Para as medições das variáveis do estudo, foram selecionadas 12 árvores de cada clone, onde foram medidas as variáveis de densidade básica (DB), espessura de casca (EC), diâmetro a altura do peito (DAP) e altura total (H). As medições das deformações residuais longitudinais foram realizadas, em árvores vivas, com o auxílio do extensômetro (Growth Strain Gauge), pelo método CIRAD-Fôret. As leituras foram realizadas em quatro posições ao redor do tronco da árvore, seguindo a orientação do plantio (linha, entre linha). Evitou-se realizar as medições das DRL na presença de ventos, uma vez que, com o movimento da árvore, as forças de sustentação oscilam dentro do tronco, alterando o valor registrado no aparelho. Em relação aos níveis das DRL, os resultados obtidos no estudo indicaram que os clones apresentaram grande variações entre si, obtendo um valor médio considerado elevado quando comparado com a literatura. O clone 8 se destacou por apresentar os menores níveis de deformação, sendo considerado um ótimo material para programas de melhoramento genético. Já o clone 1, apresentou os maiores valores das DRL. Ocorreram variações das DRL, ao longo da circunferência do tronco das árvores, sendo mais acentuada na linha referente à posição Leste. Analisando as correlações entre as variáveis, verificou-se que as DRL apresentou correlações significativas com a EC, DAP e o volume da árvore em pé (VOL). A DB e H não se mostraram influentes sobre a deformação residual longitudinal. Para a DRL, foram ajustados modelos de regressão em função da EC, DAP, H e VOL para explicar o comportamento dessa variável para cada clone. Apenas para a DB não foi possível ajustar um modelo significativo.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Engenharia FlorestalUFSMBRRecursos Florestais e Engenharia FlorestalEucalyptus spp.Deformação residual longitudinalTensão de crescimentoExtensômetroEucalyptus spp.Longitudinal residual strainGrowth stressExtensometerCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTALDeterminação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp.Determination of longitudinal residual deformation due to the stress of growth in Eucalyptus spp.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisHaselein, Clovis Robertohttp://lattes.cnpq.br/5522749609471065Gatto, Darci Albertohttp://lattes.cnpq.br/0592339091520248Santini, Elio Joséhttp://lattes.cnpq.br/1939844237237675http://lattes.cnpq.br/1995147035662011Beltrame, Rafael50020000000340050050030030015fcfbe5-5d49-492f-90d2-8e04e0effcdcff2fb667-b961-49fa-a9ee-f557b7c5b92bdee6e74e-8c67-41e8-953d-4a100d6fdcd8b4129021-c2f6-47b3-9d44-bcf2db3d6bbfinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALBELTRAME, RAFAEL.pdfapplication/pdf1071667http://repositorio.ufsm.br/bitstream/1/8667/1/BELTRAME%2c%20RAFAEL.pdfa546cbc1ae3e1505ea23b7f084068e96MD51TEXTBELTRAME, RAFAEL.pdf.txtBELTRAME, RAFAEL.pdf.txtExtracted texttext/plain123844http://repositorio.ufsm.br/bitstream/1/8667/2/BELTRAME%2c%20RAFAEL.pdf.txt408457fe5e19bf502626efeab6c8a849MD52THUMBNAILBELTRAME, RAFAEL.pdf.jpgBELTRAME, RAFAEL.pdf.jpgIM Thumbnailimage/jpeg4790http://repositorio.ufsm.br/bitstream/1/8667/3/BELTRAME%2c%20RAFAEL.pdf.jpg17a6b5ff6f5b150404a82cfcef4e828fMD531/86672022-01-13 08:36:53.385oai:repositorio.ufsm.br:1/8667Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132022-01-13T11:36:53Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
dc.title.alternative.eng.fl_str_mv |
Determination of longitudinal residual deformation due to the stress of growth in Eucalyptus spp. |
title |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
spellingShingle |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. Beltrame, Rafael Eucalyptus spp. Deformação residual longitudinal Tensão de crescimento Extensômetro Eucalyptus spp. Longitudinal residual strain Growth stress Extensometer CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
title_full |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
title_fullStr |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
title_full_unstemmed |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
title_sort |
Determinação das deformações residuais longitudinais decorrentes das tensões de crescimento em Eucalyptus spp. |
author |
Beltrame, Rafael |
author_facet |
Beltrame, Rafael |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Haselein, Clovis Roberto |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5522749609471065 |
dc.contributor.referee1.fl_str_mv |
Gatto, Darci Alberto |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0592339091520248 |
dc.contributor.referee2.fl_str_mv |
Santini, Elio José |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/1939844237237675 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1995147035662011 |
dc.contributor.author.fl_str_mv |
Beltrame, Rafael |
contributor_str_mv |
Haselein, Clovis Roberto Gatto, Darci Alberto Santini, Elio José |
dc.subject.por.fl_str_mv |
Eucalyptus spp. Deformação residual longitudinal Tensão de crescimento Extensômetro |
topic |
Eucalyptus spp. Deformação residual longitudinal Tensão de crescimento Extensômetro Eucalyptus spp. Longitudinal residual strain Growth stress Extensometer CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
dc.subject.eng.fl_str_mv |
Eucalyptus spp. Longitudinal residual strain Growth stress Extensometer |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
This study was developed with the objective to determinate the longitudinal deformations (DRL) resulting from growth stresses in standing and living trees in different clones of Eucalyptus spp. To do this, 12 clones of 9 years-old Eucalyptus spp., were selected, through annual increment means, which were planted at a spacing of 3.0 x 2.7 m. For measurements the variables of this research, 12 trees of each clone were selected, which the some variables were measured: basic density, bark thickness, diameter and total height. The measurements of longitudinal residual strain (DRL) were made in living trees with the extensometer (Growth Strain Gauge) using the CIRADForêt method. The readings were taken at four locations around the trunk of the tree following the guidance of planting (row, between rows). The measurements in the presence of winds were avoid, because with the movement of the tree, the support forces swing inside the trunk, changing the value recorded on the device. For levels of DRL, the results obtained in the study indicated that the clones had large variations between each other, and these had an average value considered high when compared with the literature. The clone 8 produced the lowest levels of deformation and it was considered an excellent genetic material. The clone 1 obtained the highest values of DRL. DRL variation occurred along the circumference of the tree trunk, and it was more pronounced on the east position. Analyzing the correlations among variables, it was found that the DRL was significantly correlated with the bark thickness, diameter and volume of standing tree. Basic density and height didn t have influence on the longitudinal residual strain. Some regression models were adjusted for DRL according to the bark thickness, diameter, height and volume to explain the behavior of this variable for each clone. Just for the basic density was not possible to set a significant model. |
publishDate |
2010 |
dc.date.accessioned.fl_str_mv |
2010-05-31 |
dc.date.available.fl_str_mv |
2010-05-31 |
dc.date.issued.fl_str_mv |
2010-03-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BELTRAME, Rafael. DETERMINATION OF LONGITUDINAL RESIDUAL DEFORMATION DUE TO THE STRESS OF GROWTH IN Eucalyptus spp.. 2010. 81 f. Dissertação (Mestrado em Recursos Florestais e Engenharia Florestal) - Universidade Federal de Santa Maria, Santa Maria, 2010. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/8667 |
identifier_str_mv |
BELTRAME, Rafael. DETERMINATION OF LONGITUDINAL RESIDUAL DEFORMATION DUE TO THE STRESS OF GROWTH IN Eucalyptus spp.. 2010. 81 f. Dissertação (Mestrado em Recursos Florestais e Engenharia Florestal) - Universidade Federal de Santa Maria, Santa Maria, 2010. |
url |
http://repositorio.ufsm.br/handle/1/8667 |
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por |
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openAccess |
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Universidade Federal de Santa Maria |
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Recursos Florestais e Engenharia Florestal |
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