Soil Structure under Forest and Pasture Land-Uses Affecting Compressive Behavior and Air Permeability in a Subtropical Soil
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808128587921883136 |