Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/21312 |
Resumo: | With the significant increase in the productivity of forest sites, it is essential to implement techniques that aim to balance high crop yields and soil resilience, to minimize the impacts caused by compaction resulting from forest harvesting. This study aimed to evaluate the effects of the traffic intensity of wood harvesting machines (harvester and forwarder) on a loamy sandy clay Ultisol, with and without presence of the residual biomass from the eucalyptus harvest. The study was carried out in a commercial stands of Eucalyptus dunnii, with the following treatments of different traffic intensities, being: C (control without any traffic), H (one Harvester wheeling), H2F, H4F, H8F and H16F that consisted of a Harvester wheeling plus the sequence, respectively, of two, four, eight and sixteen wheelings of forwarder, where the last three treatments make up the wood extraction stage, with presence or absence of residual biomass. The experimental design was a randomized block with three replications. Soil samples, with preserved structure, were collect in volumetric rings in the layers of 0.00-0.10, 0.10-0.20, 0.20-0.40, and 0.40-0.60 m. The following aspects were evaluated: (i) the effect of the machines on the soil/residue: tire contact area, pressure applied by the machines on the soil, and layer of residual biomass; (ii) the composition soil properties bulk density, total porosity, macroporosity, microporosity, pore size distribution, water storage; and (iii) the functionality soil properties: air permeability, the saturated hydraulic conductivity, preconsolidation tension, and penetration resistance in the field. When associating composition and functionality soil properties, it was possible to observe that compression caused by harvesting machines wheeling can be beneficial in more sandy soils, by modifying the porous system to increase pores responsible for water retention in deeper soil layers. The number of forwarder wheelings in the same line will depend on the considered soil depth; overall, two and four passes in the presence of harvest residues, and only two passes in the absence of such residues. |
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2021-07-06T13:31:44Z2021-07-06T13:31:44Z2020-02-20http://repositorio.ufsm.br/handle/1/21312With the significant increase in the productivity of forest sites, it is essential to implement techniques that aim to balance high crop yields and soil resilience, to minimize the impacts caused by compaction resulting from forest harvesting. This study aimed to evaluate the effects of the traffic intensity of wood harvesting machines (harvester and forwarder) on a loamy sandy clay Ultisol, with and without presence of the residual biomass from the eucalyptus harvest. The study was carried out in a commercial stands of Eucalyptus dunnii, with the following treatments of different traffic intensities, being: C (control without any traffic), H (one Harvester wheeling), H2F, H4F, H8F and H16F that consisted of a Harvester wheeling plus the sequence, respectively, of two, four, eight and sixteen wheelings of forwarder, where the last three treatments make up the wood extraction stage, with presence or absence of residual biomass. The experimental design was a randomized block with three replications. Soil samples, with preserved structure, were collect in volumetric rings in the layers of 0.00-0.10, 0.10-0.20, 0.20-0.40, and 0.40-0.60 m. The following aspects were evaluated: (i) the effect of the machines on the soil/residue: tire contact area, pressure applied by the machines on the soil, and layer of residual biomass; (ii) the composition soil properties bulk density, total porosity, macroporosity, microporosity, pore size distribution, water storage; and (iii) the functionality soil properties: air permeability, the saturated hydraulic conductivity, preconsolidation tension, and penetration resistance in the field. When associating composition and functionality soil properties, it was possible to observe that compression caused by harvesting machines wheeling can be beneficial in more sandy soils, by modifying the porous system to increase pores responsible for water retention in deeper soil layers. The number of forwarder wheelings in the same line will depend on the considered soil depth; overall, two and four passes in the presence of harvest residues, and only two passes in the absence of such residues.Com o aumento significativo na produtividade dos sítios florestais, torna-se fundamental a implementação de técnicas que visem ao equilíbrio entre as altas taxas produtivas das culturas e a resiliência do sistema solo, para minimizar os impactos originados da compactação resultante da colheita florestal. Este trabalho objetivou avaliar os efeitos da intensidade de tráfego de máquinas colhedoras de madeira (Harvester e Forwarder) sobre um Argissolo Vermelho-Amarelo franco-areno-argiloso, com e sem aporte da biomassa residual da colheita de eucalipto. O estudo foi realizado em povoamentos comerciais de Eucalyptus dunnii, com os tratamentos de diferentes intensidades de tráfego, sendo: T (testemunha), H (uma passada de Harvester), H2F, H4F, H8F e H16F que consistiram em uma passada de Harvester mais a sequência de duas, quatro, oito e dezesseis passadas do Forwarder, respectivamente, onde os três últimos tratamentos compõem a etapa de extração de madeira, com presença ou ausência da biomassa residual. O delineamento experimental foi em blocos ao acaso com três repetições. As coletas de amostras de solo, com estrutura preservada em anéis volumétricos, foram realizadas nas camadas 0,00-0,10, 0,10-0,20, 0,20-0,40 e 0,40-0,60 m. Foram avaliados: (i) o efeito das máquinas sobre o solo/resíduo da colheita: área de contato dos pneus, pressão das máquinas sobre o solo e camada de resíduos; (ii) as propriedades de composição do solo: densidade do solo (Ds), porosidade total, macroporosidade, microporosidade, distribuição tamanho de poros, armazenamento de água; e (iii) as propriedades de funcionalidade: permeabilidade do solo ao ar, condutividade hidráulica do solo saturado, pressão de preconsolidação e resistência do solo à penetração no campo. Ao associar as propriedades de composição com as propriedades de funcionalidade do solo, observou-se que a compressão causada pelo número de passadas das máquinas pode ser benéfica em solos mais arenosos, por modificar o sistema poroso, incrementando o volume de poros responsáveis pelo armazenamento de água em profundidade. O limite de passadas do Forwarder numa mesma linha dependerá da profundidade considerada, sendo limitadas a duas e quatro passadas na presença de resíduos de colheita e de apenas duas passadas na ausência de resíduos.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Engenharia FlorestalUFSMBrasilRecursos Florestais e Engenharia FlorestalAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessSolo florestalCompressibilidade do soloQualidade estrutural do solo.Floresta plantadaForest soilSoil compactionSoil structural qualityCommercial forestCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTALResistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunniiPhysical-mechanical strength of ultisol under Eucalyptus dunnii forest harvestinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisReichert, José Miguelhttp://lattes.cnpq.br/0910765178697312Carducci, Carla EloizeCavalli, Jean Pierrehttp://lattes.cnpq.br/2664643074801317Barbosa, Jânio dos Santos500200000003600600600600600a85444db-3c89-4606-bf03-0e1915842baad04d9cc6-dee3-4fb9-9330-0e95991135be3ce573f7-6f12-493a-9451-7792c748ef716030d2b4-fcdb-41e1-83ea-4dbf65652217reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALDIS_PPGEF_2020_BARBOSA_JANIO.pdfDIS_PPGEF_2020_BARBOSA_JANIO.pdfDissertaçãoapplication/pdf1287910http://repositorio.ufsm.br/bitstream/1/21312/1/DIS_PPGEF_2020_BARBOSA_JANIO.pdf6668a507805350c36caef60252638fa3MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
dc.title.alternative.eng.fl_str_mv |
Physical-mechanical strength of ultisol under Eucalyptus dunnii forest harvest |
title |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
spellingShingle |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii Barbosa, Jânio dos Santos Solo florestal Compressibilidade do solo Qualidade estrutural do solo. Floresta plantada Forest soil Soil compaction Soil structural quality Commercial forest CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
title_full |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
title_fullStr |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
title_full_unstemmed |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
title_sort |
Resistência físico-mecânica de um argissolo vermelho-amarelo sob colheita florestal de Eucalyptus dunnii |
author |
Barbosa, Jânio dos Santos |
author_facet |
Barbosa, Jânio dos Santos |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Reichert, José Miguel |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0910765178697312 |
dc.contributor.referee1.fl_str_mv |
Carducci, Carla Eloize |
dc.contributor.referee2.fl_str_mv |
Cavalli, Jean Pierre |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2664643074801317 |
dc.contributor.author.fl_str_mv |
Barbosa, Jânio dos Santos |
contributor_str_mv |
Reichert, José Miguel Carducci, Carla Eloize Cavalli, Jean Pierre |
dc.subject.por.fl_str_mv |
Solo florestal Compressibilidade do solo Qualidade estrutural do solo. Floresta plantada |
topic |
Solo florestal Compressibilidade do solo Qualidade estrutural do solo. Floresta plantada Forest soil Soil compaction Soil structural quality Commercial forest CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
dc.subject.eng.fl_str_mv |
Forest soil Soil compaction Soil structural quality Commercial forest |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
With the significant increase in the productivity of forest sites, it is essential to implement techniques that aim to balance high crop yields and soil resilience, to minimize the impacts caused by compaction resulting from forest harvesting. This study aimed to evaluate the effects of the traffic intensity of wood harvesting machines (harvester and forwarder) on a loamy sandy clay Ultisol, with and without presence of the residual biomass from the eucalyptus harvest. The study was carried out in a commercial stands of Eucalyptus dunnii, with the following treatments of different traffic intensities, being: C (control without any traffic), H (one Harvester wheeling), H2F, H4F, H8F and H16F that consisted of a Harvester wheeling plus the sequence, respectively, of two, four, eight and sixteen wheelings of forwarder, where the last three treatments make up the wood extraction stage, with presence or absence of residual biomass. The experimental design was a randomized block with three replications. Soil samples, with preserved structure, were collect in volumetric rings in the layers of 0.00-0.10, 0.10-0.20, 0.20-0.40, and 0.40-0.60 m. The following aspects were evaluated: (i) the effect of the machines on the soil/residue: tire contact area, pressure applied by the machines on the soil, and layer of residual biomass; (ii) the composition soil properties bulk density, total porosity, macroporosity, microporosity, pore size distribution, water storage; and (iii) the functionality soil properties: air permeability, the saturated hydraulic conductivity, preconsolidation tension, and penetration resistance in the field. When associating composition and functionality soil properties, it was possible to observe that compression caused by harvesting machines wheeling can be beneficial in more sandy soils, by modifying the porous system to increase pores responsible for water retention in deeper soil layers. The number of forwarder wheelings in the same line will depend on the considered soil depth; overall, two and four passes in the presence of harvest residues, and only two passes in the absence of such residues. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020-02-20 |
dc.date.accessioned.fl_str_mv |
2021-07-06T13:31:44Z |
dc.date.available.fl_str_mv |
2021-07-06T13:31:44Z |
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.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/21312 |
url |
http://repositorio.ufsm.br/handle/1/21312 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500200000003 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Engenharia Florestal |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Recursos Florestais e Engenharia Florestal |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
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Biblioteca Digital de Teses e Dissertações do UFSM |
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