Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://locus.ufv.br/handle/123456789/3085 |
Resumo: | Canopy structure, growth and economic value were evaluated in a pruned and thinned Eucalyptus grandis W. Hill ex Maiden clone stand, in Abaeté, Minas Gerais (19º 15 94 S e 45º 44 56 W ). The thinning treatments included the removal of trees in the following ages and weights: 0% (SD), 35% of total planted trees at 55 months (35% 55) and 81 months (35% 81), and 70% at 81 months, with coppice removal (70% 81 SB) and without coppice removal (70% 81 CB) from thinned trees. The canopy cover index (CCI) was obtained at the age of 141 months by taking digital photographs (3216x2116 pixels), which were processed through the software SIDELOOK 1.1. The leaf area index (LAI) was obtained with the LI-COR canopy analyzer. The diameter (DBH) and height (Ht) of the trees were measured from the age of 81 to 141 months. The multiproduct economic viability was evaluated at the age of 141 months. LAI varied significantly (p ≤ 0.05) with thinning treatments up to 141 months. The treatments 35% 81, 70% 81 CB and no thinning presented LAI 20% higher than for the 70% CB 81 treatment. There was a 25% LAI reduction at 141 months as compared to 102 months, indicating a possible site quality decline. All thinning treatments presented different (p ≤ 0.05) CCI s. At 141 months, there were differences (p ≤ 0.05) in DBH, Ht, volume outside bark (Vcc), periodic annual increment after thinning (PAI) and mean annual increment (MAI) among thinning treatments. The total height was lower (p ≤ 0.05) for the treatment 70% 81 CB. The number of individuals was greater in larger diameter classes for the 70% 81 SB followed by the 35% 55, 35% 81, 70% 81 CB and SD. By maintaining one sprout per stump in the thinned trees there was growth reduction of the remaining trees. The PAI was higher (p ≤ 0.05) for the 35% 55 and the Vcc was higher (p ≤ 0.05) for the SD treatment. The 70% 81 SB and 35% 55 thinning treatments attained economic return higher than for the other treatments due to large production of clearwood. All management regimes studied presented economic viability for a discount rate of 8% a.a. |
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Ramos, Diêgo Correahttp://lattes.cnpq.br/5773941494123100Reis, Maria das Graças Ferreirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783318Z6Leite, Hélio Garciahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785373Z6Reis, Geraldo Gonçalves doshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787900Z6Paiva, Haroldo Nogueira dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788177J6Lima, Ana Paula Leite dehttp://lattes.cnpq.br/78736473706182672015-03-26T13:15:15Z2012-04-182015-03-26T13:15:15Z2011-06-27RAMOS, Diêgo Correa. Canopy structure, growth and economic value of pruned and thinned eucalypt stand. 2011. 74 f. Dissertação (Mestrado em Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de) - Universidade Federal de Viçosa, Viçosa, 2011.http://locus.ufv.br/handle/123456789/3085Canopy structure, growth and economic value were evaluated in a pruned and thinned Eucalyptus grandis W. Hill ex Maiden clone stand, in Abaeté, Minas Gerais (19º 15 94 S e 45º 44 56 W ). The thinning treatments included the removal of trees in the following ages and weights: 0% (SD), 35% of total planted trees at 55 months (35% 55) and 81 months (35% 81), and 70% at 81 months, with coppice removal (70% 81 SB) and without coppice removal (70% 81 CB) from thinned trees. The canopy cover index (CCI) was obtained at the age of 141 months by taking digital photographs (3216x2116 pixels), which were processed through the software SIDELOOK 1.1. The leaf area index (LAI) was obtained with the LI-COR canopy analyzer. The diameter (DBH) and height (Ht) of the trees were measured from the age of 81 to 141 months. The multiproduct economic viability was evaluated at the age of 141 months. LAI varied significantly (p ≤ 0.05) with thinning treatments up to 141 months. The treatments 35% 81, 70% 81 CB and no thinning presented LAI 20% higher than for the 70% CB 81 treatment. There was a 25% LAI reduction at 141 months as compared to 102 months, indicating a possible site quality decline. All thinning treatments presented different (p ≤ 0.05) CCI s. At 141 months, there were differences (p ≤ 0.05) in DBH, Ht, volume outside bark (Vcc), periodic annual increment after thinning (PAI) and mean annual increment (MAI) among thinning treatments. The total height was lower (p ≤ 0.05) for the treatment 70% 81 CB. The number of individuals was greater in larger diameter classes for the 70% 81 SB followed by the 35% 55, 35% 81, 70% 81 CB and SD. By maintaining one sprout per stump in the thinned trees there was growth reduction of the remaining trees. The PAI was higher (p ≤ 0.05) for the 35% 55 and the Vcc was higher (p ≤ 0.05) for the SD treatment. The 70% 81 SB and 35% 55 thinning treatments attained economic return higher than for the other treatments due to large production of clearwood. All management regimes studied presented economic viability for a discount rate of 8% a.a.A estrutura de copa, o crescimento e o valor econômico foram avaliados em povoamento desramado e desbastado de clone de Eucalyptus grandis W. Hill ex Maiden, em Abaeté, Minas Gerais (19º 15 94 S e 45º 44 56 W ). Os tratamentos de desbaste incluíram a remoção de árvores nos seguintes pesos e idades: 0% (SD), 35% aos 55 meses (35 % 55) e aos 81 meses (35 % 81) e, 70% aos 81 meses, com eliminação da brotação (70 % 81 SB) e sem eliminação da brotação (70 % 81 CB) das cepas remanescentes. O índice de cobertura de dossel (ICD) foi obtido aos 141 meses de idade a partir de fotografias digitais nas dimensões de 3216x2116 pixels, processadas através do software Sidelook 1.1. O índice de área foliar (IAF) foi obtido com analisador de dossel da LI-COR. O diâmetro e a altura das árvores foram avaliados dos 81 aos 141 meses de idade. A viabilidade econômica foi ava1iada aos 141 meses de idade, considerando a producão de multiprodutos, empregando um modelo de programação dinâmica. Foi observada diferença significativa (p≤0,05) entre os tratamentos de desbaste para IAF, aos 141 meses. O IAF das plantas sob regime de desbaste aos 81 meses, com remoção de 35% das árvores, 70 % das árvores (com brotos) e sem desbaste foi 20% maior do que para 70% 81 SB. Foi observada redução de 25 % no IAF aos 141 meses em relação ao observado aos 102 meses, indicando possível redução da capacidade produtiva do sítio. O ICD foi diferente (p≤0,05) entre todos os tratamentos. Aos 141 meses, foram observadas diferenças significativas (p≤0,05) em diâmetro, altura total, volume com casca, incremento periódico anual pós-desbaste (IPA) e incremento médio anual (IMA), entre os tratamentos de desbaste. A altura total foi menor (p≤0,05) para o tratamento com presença de brotação. O número de indivíduos foi maior em classes de diâmetro maiores para o desbaste 70% 81 SB seguido de 35% 55 e 81, 70% 81 CB e SD. A presença da brotação interferiu negativamente no crescimento das árvores remanescentes. O IPA foi maior (p≤0,05) para 35% 55 e o volume com casca mais elevado (p≤0,05) para SD. O alto valor de mercado das peças de madeira serrada e o maior volume de madeira para serraria no Os regimes de desbaste de 70% 81 SB e 35% 55 apresentaram maior volume de madeira limpa para serraria, proporcionando maior rentabilidade econômica em comparação aos demais tratamentos. Todos os regimes de manejo estudados apresentam viabilidade econômica para uma taxa de desconto de 8% a.a.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de ViçosaMestrado em Ciência FlorestalUFVBRManejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização deDesrama artificialDesbasteMultiprodutosArtificial pruningThinningMultiproductCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::SILVICULTURAEstrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbasteCanopy structure, growth and economic value of pruned and thinned eucalypt standinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf4613900https://locus.ufv.br//bitstream/123456789/3085/1/texto%20completo.pdfed8bbd337e685d333562c27b6825eef2MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain126174https://locus.ufv.br//bitstream/123456789/3085/2/texto%20completo.pdf.txt4579ebe6e0ffbc49abe1a6beb7749600MD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3593https://locus.ufv.br//bitstream/123456789/3085/3/texto%20completo.pdf.jpg414eaf599abf5cf12734f5b5fe7cadd8MD53123456789/30852016-04-09 23:05:05.74oai:locus.ufv.br:123456789/3085Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-10T02:05:05LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
dc.title.alternative.eng.fl_str_mv |
Canopy structure, growth and economic value of pruned and thinned eucalypt stand |
title |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
spellingShingle |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste Ramos, Diêgo Correa Desrama artificial Desbaste Multiprodutos Artificial pruning Thinning Multiproduct CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::SILVICULTURA |
title_short |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
title_full |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
title_fullStr |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
title_full_unstemmed |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
title_sort |
Estrutura de copa, crescimento e valor econômico de um povoamento de eucalipto submetido a desrama e desbaste |
author |
Ramos, Diêgo Correa |
author_facet |
Ramos, Diêgo Correa |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/5773941494123100 |
dc.contributor.author.fl_str_mv |
Ramos, Diêgo Correa |
dc.contributor.advisor-co1.fl_str_mv |
Reis, Maria das Graças Ferreira |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783318Z6 |
dc.contributor.advisor-co2.fl_str_mv |
Leite, Hélio Garcia |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4785373Z6 |
dc.contributor.advisor1.fl_str_mv |
Reis, Geraldo Gonçalves dos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787900Z6 |
dc.contributor.referee1.fl_str_mv |
Paiva, Haroldo Nogueira de |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788177J6 |
dc.contributor.referee2.fl_str_mv |
Lima, Ana Paula Leite de |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/7873647370618267 |
contributor_str_mv |
Reis, Maria das Graças Ferreira Leite, Hélio Garcia Reis, Geraldo Gonçalves dos Paiva, Haroldo Nogueira de Lima, Ana Paula Leite de |
dc.subject.por.fl_str_mv |
Desrama artificial Desbaste Multiprodutos |
topic |
Desrama artificial Desbaste Multiprodutos Artificial pruning Thinning Multiproduct CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::SILVICULTURA |
dc.subject.eng.fl_str_mv |
Artificial pruning Thinning Multiproduct |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::SILVICULTURA |
description |
Canopy structure, growth and economic value were evaluated in a pruned and thinned Eucalyptus grandis W. Hill ex Maiden clone stand, in Abaeté, Minas Gerais (19º 15 94 S e 45º 44 56 W ). The thinning treatments included the removal of trees in the following ages and weights: 0% (SD), 35% of total planted trees at 55 months (35% 55) and 81 months (35% 81), and 70% at 81 months, with coppice removal (70% 81 SB) and without coppice removal (70% 81 CB) from thinned trees. The canopy cover index (CCI) was obtained at the age of 141 months by taking digital photographs (3216x2116 pixels), which were processed through the software SIDELOOK 1.1. The leaf area index (LAI) was obtained with the LI-COR canopy analyzer. The diameter (DBH) and height (Ht) of the trees were measured from the age of 81 to 141 months. The multiproduct economic viability was evaluated at the age of 141 months. LAI varied significantly (p ≤ 0.05) with thinning treatments up to 141 months. The treatments 35% 81, 70% 81 CB and no thinning presented LAI 20% higher than for the 70% CB 81 treatment. There was a 25% LAI reduction at 141 months as compared to 102 months, indicating a possible site quality decline. All thinning treatments presented different (p ≤ 0.05) CCI s. At 141 months, there were differences (p ≤ 0.05) in DBH, Ht, volume outside bark (Vcc), periodic annual increment after thinning (PAI) and mean annual increment (MAI) among thinning treatments. The total height was lower (p ≤ 0.05) for the treatment 70% 81 CB. The number of individuals was greater in larger diameter classes for the 70% 81 SB followed by the 35% 55, 35% 81, 70% 81 CB and SD. By maintaining one sprout per stump in the thinned trees there was growth reduction of the remaining trees. The PAI was higher (p ≤ 0.05) for the 35% 55 and the Vcc was higher (p ≤ 0.05) for the SD treatment. The 70% 81 SB and 35% 55 thinning treatments attained economic return higher than for the other treatments due to large production of clearwood. All management regimes studied presented economic viability for a discount rate of 8% a.a. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-06-27 |
dc.date.available.fl_str_mv |
2012-04-18 2015-03-26T13:15:15Z |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:15:15Z |
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info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
RAMOS, Diêgo Correa. Canopy structure, growth and economic value of pruned and thinned eucalypt stand. 2011. 74 f. Dissertação (Mestrado em Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de) - Universidade Federal de Viçosa, Viçosa, 2011. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/3085 |
identifier_str_mv |
RAMOS, Diêgo Correa. Canopy structure, growth and economic value of pruned and thinned eucalypt stand. 2011. 74 f. Dissertação (Mestrado em Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de) - Universidade Federal de Viçosa, Viçosa, 2011. |
url |
http://locus.ufv.br/handle/123456789/3085 |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal de Viçosa |
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Mestrado em Ciência Florestal |
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UFV |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Manejo Florestal; Meio Ambiente e Conservação da Natureza; Silvicultura; Tecnologia e Utilização de |
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Universidade Federal de Viçosa |
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UFV |
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