Estimation of precompression stress in an Ultisol cultivated with sugarcane
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336 |
Resumo: | ABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (BD) and gravimetric water content (w) was examined on soil strength and pedo-transfer functions were proposed to predict the precompression stress (σp) in an Ultisol cultivated with sugarcane. Undisturbed soil cores were sampled at the depths of 0-0.20 and 0.20-0.40 m, subjected to different water contents, and subsequently, compression tests were performed to determine σp. The data were subjected to analysis of variance and regression analysis. Bulk density and w affected σp positively and negatively, respectively. Approximately 70% of the variation of the σp could be explained as a function of BD and w through an accessible multiple regression model. Comparisons with other pedo-transfer functions showed that estimates of σp may be rather sensitive to soil management and textural classes. Variations imposed by soil management and cohesive character into depth suggest that independent models should be considered to characterise compressive behaviour of soil by horizon or layer. |
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Estimation of precompression stress in an Ultisol cultivated with sugarcanecompactionsoil compressibilitycoastal tablelandsABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (BD) and gravimetric water content (w) was examined on soil strength and pedo-transfer functions were proposed to predict the precompression stress (σp) in an Ultisol cultivated with sugarcane. Undisturbed soil cores were sampled at the depths of 0-0.20 and 0.20-0.40 m, subjected to different water contents, and subsequently, compression tests were performed to determine σp. The data were subjected to analysis of variance and regression analysis. Bulk density and w affected σp positively and negatively, respectively. Approximately 70% of the variation of the σp could be explained as a function of BD and w through an accessible multiple regression model. Comparisons with other pedo-transfer functions showed that estimates of σp may be rather sensitive to soil management and textural classes. Variations imposed by soil management and cohesive character into depth suggest that independent models should be considered to characterise compressive behaviour of soil by horizon or layer.Departamento de Engenharia Agrícola - UFCG2019-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336Revista Brasileira de Engenharia Agrícola e Ambiental v.23 n.5 2019reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v23n5p336-340info:eu-repo/semantics/openAccessMendes,Pericles M. B.Rolim,Mário M.Lima,Renato P. dePedrosa,Elvira M. R.Tavares,Uilka E.Simões Neto,Djalma E.eng2019-05-02T00:00:00Zoai:scielo:S1415-43662019000500336Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2019-05-02T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
title |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
spellingShingle |
Estimation of precompression stress in an Ultisol cultivated with sugarcane Mendes,Pericles M. B. compaction soil compressibility coastal tablelands |
title_short |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
title_full |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
title_fullStr |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
title_full_unstemmed |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
title_sort |
Estimation of precompression stress in an Ultisol cultivated with sugarcane |
author |
Mendes,Pericles M. B. |
author_facet |
Mendes,Pericles M. B. Rolim,Mário M. Lima,Renato P. de Pedrosa,Elvira M. R. Tavares,Uilka E. Simões Neto,Djalma E. |
author_role |
author |
author2 |
Rolim,Mário M. Lima,Renato P. de Pedrosa,Elvira M. R. Tavares,Uilka E. Simões Neto,Djalma E. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Mendes,Pericles M. B. Rolim,Mário M. Lima,Renato P. de Pedrosa,Elvira M. R. Tavares,Uilka E. Simões Neto,Djalma E. |
dc.subject.por.fl_str_mv |
compaction soil compressibility coastal tablelands |
topic |
compaction soil compressibility coastal tablelands |
description |
ABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (BD) and gravimetric water content (w) was examined on soil strength and pedo-transfer functions were proposed to predict the precompression stress (σp) in an Ultisol cultivated with sugarcane. Undisturbed soil cores were sampled at the depths of 0-0.20 and 0.20-0.40 m, subjected to different water contents, and subsequently, compression tests were performed to determine σp. The data were subjected to analysis of variance and regression analysis. Bulk density and w affected σp positively and negatively, respectively. Approximately 70% of the variation of the σp could be explained as a function of BD and w through an accessible multiple regression model. Comparisons with other pedo-transfer functions showed that estimates of σp may be rather sensitive to soil management and textural classes. Variations imposed by soil management and cohesive character into depth suggest that independent models should be considered to characterise compressive behaviour of soil by horizon or layer. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-05-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v23n5p336-340 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
dc.source.none.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental v.23 n.5 2019 reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online) instname:Universidade Federal de Campina Grande (UFCG) instacron:UFCG |
instname_str |
Universidade Federal de Campina Grande (UFCG) |
instacron_str |
UFCG |
institution |
UFCG |
reponame_str |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
collection |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG) |
repository.mail.fl_str_mv |
||agriambi@agriambi.com.br |
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1750297686837297152 |