Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil

Detalhes bibliográficos
Autor(a) principal: Suzuki, Luis Eduardo Akiyoshi Sanches
Data de Publicação: 2022
Outros Autores: Reinert, Dalvan José, Secco, Deonir, Fenner, Paulo Torres [UNESP], Reichert, José Miguel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.3390/soilsystems6040098
http://hdl.handle.net/11449/249500
Resumo: Machinery traffic and animal trampling can deform the soil and, consequently, impair soil pore functioning. This study aimed to evaluate how soil structure affects the compressibility, physical properties and air permeability of a Typic Paleudalf under forest, pasture and eucalyptus. Soil samples with preserved structure were used to determine soil physical (bulk density, porosity, degree of water saturation at 33 kPa-tension, air permeability) and mechanical properties (soil deformation, precompression stress, compressibility index). After these evaluations, each soil sample was fragmented, sieved, and the metal rings filled with structureless soil, and underwent the same determinations as the samples with preserved structure. For loads greater than the precompression stress (load greater than 200 kPa), soil with non-preserved structure had the largest deformation. An increase in bulk density decreased macropores linearly (R2 = 0.77 and 0.87, respectively, to preserved and non-preserved soil structure) and air flow exponentially. The soil with preserved structure was less susceptible to further compaction. Air flow was greatest in soils with lower bulk density, microporosity and water saturation degree, and a high volume of macropores. Soil structure (preserved and non-preserved) had more significative differences in microporosity, compressibility index, soil deformation, and bulk density at the end of the compression test.
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spelling Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soilcompressibilityprecompression stresssoil compactionsoil permeabilityMachinery traffic and animal trampling can deform the soil and, consequently, impair soil pore functioning. This study aimed to evaluate how soil structure affects the compressibility, physical properties and air permeability of a Typic Paleudalf under forest, pasture and eucalyptus. Soil samples with preserved structure were used to determine soil physical (bulk density, porosity, degree of water saturation at 33 kPa-tension, air permeability) and mechanical properties (soil deformation, precompression stress, compressibility index). After these evaluations, each soil sample was fragmented, sieved, and the metal rings filled with structureless soil, and underwent the same determinations as the samples with preserved structure. For loads greater than the precompression stress (load greater than 200 kPa), soil with non-preserved structure had the largest deformation. An increase in bulk density decreased macropores linearly (R2 = 0.77 and 0.87, respectively, to preserved and non-preserved soil structure) and air flow exponentially. The soil with preserved structure was less susceptible to further compaction. Air flow was greatest in soils with lower bulk density, microporosity and water saturation degree, and a high volume of macropores. Soil structure (preserved and non-preserved) had more significative differences in microporosity, compressibility index, soil deformation, and bulk density at the end of the compression test.Center of Technological Development Federal University of Pelotas, RSSoils Department Federal University of Santa Maria, RSCentro de Ciências Exatas e Tecnológicas Universidade Estadual do Oeste do Paraná-UNIOESTE, PRDepartment of Forest Sciences UNESP Universidade Estadual Paulista, SPDepartment of Forest Sciences UNESP Universidade Estadual Paulista, SPFederal University of PelotasFederal University of Santa MariaUniversidade Estadual do Oeste do Paraná-UNIOESTEUniversidade Estadual Paulista (UNESP)Suzuki, Luis Eduardo Akiyoshi SanchesReinert, Dalvan JoséSecco, DeonirFenner, Paulo Torres [UNESP]Reichert, José Miguel2023-07-29T16:01:22Z2023-07-29T16:01:22Z2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/soilsystems6040098Soil Systems, v. 6, n. 4, 2022.2571-8789http://hdl.handle.net/11449/24950010.3390/soilsystems60400982-s2.0-85144659107Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSoil Systemsinfo:eu-repo/semantics/openAccess2024-04-30T13:10:48Zoai:repositorio.unesp.br:11449/249500Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:58:12.888868Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
title Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
spellingShingle Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
Suzuki, Luis Eduardo Akiyoshi Sanches
compressibility
precompression stress
soil compaction
soil permeability
title_short Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
title_full Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
title_fullStr Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
title_full_unstemmed Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
title_sort Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
author Suzuki, Luis Eduardo Akiyoshi Sanches
author_facet Suzuki, Luis Eduardo Akiyoshi Sanches
Reinert, Dalvan José
Secco, Deonir
Fenner, Paulo Torres [UNESP]
Reichert, José Miguel
author_role author
author2 Reinert, Dalvan José
Secco, Deonir
Fenner, Paulo Torres [UNESP]
Reichert, José Miguel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Federal University of Pelotas
Federal University of Santa Maria
Universidade Estadual do Oeste do Paraná-UNIOESTE
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Suzuki, Luis Eduardo Akiyoshi Sanches
Reinert, Dalvan José
Secco, Deonir
Fenner, Paulo Torres [UNESP]
Reichert, José Miguel
dc.subject.por.fl_str_mv compressibility
precompression stress
soil compaction
soil permeability
topic compressibility
precompression stress
soil compaction
soil permeability
description Machinery traffic and animal trampling can deform the soil and, consequently, impair soil pore functioning. This study aimed to evaluate how soil structure affects the compressibility, physical properties and air permeability of a Typic Paleudalf under forest, pasture and eucalyptus. Soil samples with preserved structure were used to determine soil physical (bulk density, porosity, degree of water saturation at 33 kPa-tension, air permeability) and mechanical properties (soil deformation, precompression stress, compressibility index). After these evaluations, each soil sample was fragmented, sieved, and the metal rings filled with structureless soil, and underwent the same determinations as the samples with preserved structure. For loads greater than the precompression stress (load greater than 200 kPa), soil with non-preserved structure had the largest deformation. An increase in bulk density decreased macropores linearly (R2 = 0.77 and 0.87, respectively, to preserved and non-preserved soil structure) and air flow exponentially. The soil with preserved structure was less susceptible to further compaction. Air flow was greatest in soils with lower bulk density, microporosity and water saturation degree, and a high volume of macropores. Soil structure (preserved and non-preserved) had more significative differences in microporosity, compressibility index, soil deformation, and bulk density at the end of the compression test.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-01
2023-07-29T16:01:22Z
2023-07-29T16:01:22Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3390/soilsystems6040098
Soil Systems, v. 6, n. 4, 2022.
2571-8789
http://hdl.handle.net/11449/249500
10.3390/soilsystems6040098
2-s2.0-85144659107
url http://dx.doi.org/10.3390/soilsystems6040098
http://hdl.handle.net/11449/249500
identifier_str_mv Soil Systems, v. 6, n. 4, 2022.
2571-8789
10.3390/soilsystems6040098
2-s2.0-85144659107
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Soil Systems
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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