Planosol soil sample size for computerized tomography measurement of physical parameters
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFS |
Texto Completo: | https://ri.ufs.br/handle/riufs/711 |
Resumo: | A técnica da tomografia computadorizada (TC) permite medir a densidade e a umidade de amostras de solo, constituindo uma importante ferramenta na Ciência do Solo. Este trabalho tem como objetivos descrever os aspectos da adequação do tamanho de amostras de um Planossolo e os procedimentos de avaliação e estudos por análise estatística, empregando-se um minitomógrafo computadorizado de raios gama com fonte de 241Am. O valor do erro atribuído ao equipamento são 0,051 e 0,046 Mg m-3, respectivamente, para os horizontes A e B. O valor teórico da espessura da amostra do Planossolo para uso na técnica de TC com fonte de 241Am é, aproximadamente, 4,0 cm para os horizontes A e B. Já a espessura ideal de amostras é de aproximadamente 6,0 cm, sendo menor para amostras do horizonte B em relação ao A. Obteve-se boa precisão e adaptabilidade no emprego da TC para estudos de Planossolos._________________________________________________________________________________ ABSTRACT: Computerized tomography (CT) is an important tool in Soil Science for noninvasive measurement of density and water content of soil samples. This work aims to describe the aspects of sample size adequacy for Planosol (Albaqualf) and to evaluate procedures for statistical analysis, using a CT scanner with a 241Am source. Density errors attributed to the equipment are 0.051 and 0.046 Mg m-3 for horizons A and B, respectively. The theoretical value for sample thickness for the Planosol, using this equipment, is 4.0 cm for the horizons A and B. The ideal thickness of samples is approximately 6.0 cm, being smaller for samples of the horizon B in relation to A. Alternatives for the improvement of the efficiency analysis and the reliability of the results obtained by CT are also discussed, and indicate good precision and adaptability of the application of this technology in Planosol (Albaqualf) studies. |
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Pedrotti, AlceuPauletto, Eloy AntonioCrestana, SilvioCruvinel, Paulo EstevãoVaz, Carlos Manoel PedroNaime, João de MendonçaSilva, Alvaro Macedo da2013-09-06T19:22:53Z2013-09-06T19:22:53Z2003-12PEDROTTI, A. et al. Planossol soil sample size for computerized tomography measurement of physical parameters. Scientia Agricola, Piracicaba, v. 60, n. 4, p. 735-740, out./dez. 2003. Disponível em: <http://dx.doi.org/10.1590/S0103-90162003000400019 >. Acesso em: 6 set. 2013.0103-9016https://ri.ufs.br/handle/riufs/711A técnica da tomografia computadorizada (TC) permite medir a densidade e a umidade de amostras de solo, constituindo uma importante ferramenta na Ciência do Solo. Este trabalho tem como objetivos descrever os aspectos da adequação do tamanho de amostras de um Planossolo e os procedimentos de avaliação e estudos por análise estatística, empregando-se um minitomógrafo computadorizado de raios gama com fonte de 241Am. O valor do erro atribuído ao equipamento são 0,051 e 0,046 Mg m-3, respectivamente, para os horizontes A e B. O valor teórico da espessura da amostra do Planossolo para uso na técnica de TC com fonte de 241Am é, aproximadamente, 4,0 cm para os horizontes A e B. Já a espessura ideal de amostras é de aproximadamente 6,0 cm, sendo menor para amostras do horizonte B em relação ao A. Obteve-se boa precisão e adaptabilidade no emprego da TC para estudos de Planossolos._________________________________________________________________________________ ABSTRACT: Computerized tomography (CT) is an important tool in Soil Science for noninvasive measurement of density and water content of soil samples. This work aims to describe the aspects of sample size adequacy for Planosol (Albaqualf) and to evaluate procedures for statistical analysis, using a CT scanner with a 241Am source. Density errors attributed to the equipment are 0.051 and 0.046 Mg m-3 for horizons A and B, respectively. The theoretical value for sample thickness for the Planosol, using this equipment, is 4.0 cm for the horizons A and B. The ideal thickness of samples is approximately 6.0 cm, being smaller for samples of the horizon B in relation to A. Alternatives for the improvement of the efficiency analysis and the reliability of the results obtained by CT are also discussed, and indicate good precision and adaptability of the application of this technology in Planosol (Albaqualf) studies.SoloPlanossoloDensidade do soloUmidade do soloPlanosol soil sample size for computerized tomography measurement of physical parametersTamanho de amostras para a determinação de parâmetros físicos em planossolo por tomografia computadorizadainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessTHUMBNAILPlanosolSoilSample.pdf.jpgPlanosolSoilSample.pdf.jpgGenerated Thumbnailimage/jpeg1890https://ri.ufs.br/jspui/bitstream/riufs/711/4/PlanosolSoilSample.pdf.jpg66e87ef78de6907c6f51923c4530cf1bMD54ORIGINALPlanosolSoilSample.pdfPlanosolSoilSample.pdfapplication/pdf205021https://ri.ufs.br/jspui/bitstream/riufs/711/1/PlanosolSoilSample.pdf3d536c4506c65fa1fff62cd5ff33873cMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://ri.ufs.br/jspui/bitstream/riufs/711/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52TEXTPlanosolSoilSample.pdf.txtPlanosolSoilSample.pdf.txtExtracted texttext/plain25932https://ri.ufs.br/jspui/bitstream/riufs/711/3/PlanosolSoilSample.pdf.txt066a6507591bff15bae7485c409c36c5MD53riufs/7112013-09-07 02:00:08.749oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2013-09-07T05:00:08Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false |
dc.title.pt_BR.fl_str_mv |
Planosol soil sample size for computerized tomography measurement of physical parameters |
dc.title.alternative.pt_BR.fl_str_mv |
Tamanho de amostras para a determinação de parâmetros físicos em planossolo por tomografia computadorizada |
title |
Planosol soil sample size for computerized tomography measurement of physical parameters |
spellingShingle |
Planosol soil sample size for computerized tomography measurement of physical parameters Pedrotti, Alceu Solo Planossolo Densidade do solo Umidade do solo |
title_short |
Planosol soil sample size for computerized tomography measurement of physical parameters |
title_full |
Planosol soil sample size for computerized tomography measurement of physical parameters |
title_fullStr |
Planosol soil sample size for computerized tomography measurement of physical parameters |
title_full_unstemmed |
Planosol soil sample size for computerized tomography measurement of physical parameters |
title_sort |
Planosol soil sample size for computerized tomography measurement of physical parameters |
author |
Pedrotti, Alceu |
author_facet |
Pedrotti, Alceu Pauletto, Eloy Antonio Crestana, Silvio Cruvinel, Paulo Estevão Vaz, Carlos Manoel Pedro Naime, João de Mendonça Silva, Alvaro Macedo da |
author_role |
author |
author2 |
Pauletto, Eloy Antonio Crestana, Silvio Cruvinel, Paulo Estevão Vaz, Carlos Manoel Pedro Naime, João de Mendonça Silva, Alvaro Macedo da |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Pedrotti, Alceu Pauletto, Eloy Antonio Crestana, Silvio Cruvinel, Paulo Estevão Vaz, Carlos Manoel Pedro Naime, João de Mendonça Silva, Alvaro Macedo da |
dc.subject.por.fl_str_mv |
Solo Planossolo Densidade do solo Umidade do solo |
topic |
Solo Planossolo Densidade do solo Umidade do solo |
description |
A técnica da tomografia computadorizada (TC) permite medir a densidade e a umidade de amostras de solo, constituindo uma importante ferramenta na Ciência do Solo. Este trabalho tem como objetivos descrever os aspectos da adequação do tamanho de amostras de um Planossolo e os procedimentos de avaliação e estudos por análise estatística, empregando-se um minitomógrafo computadorizado de raios gama com fonte de 241Am. O valor do erro atribuído ao equipamento são 0,051 e 0,046 Mg m-3, respectivamente, para os horizontes A e B. O valor teórico da espessura da amostra do Planossolo para uso na técnica de TC com fonte de 241Am é, aproximadamente, 4,0 cm para os horizontes A e B. Já a espessura ideal de amostras é de aproximadamente 6,0 cm, sendo menor para amostras do horizonte B em relação ao A. Obteve-se boa precisão e adaptabilidade no emprego da TC para estudos de Planossolos._________________________________________________________________________________ ABSTRACT: Computerized tomography (CT) is an important tool in Soil Science for noninvasive measurement of density and water content of soil samples. This work aims to describe the aspects of sample size adequacy for Planosol (Albaqualf) and to evaluate procedures for statistical analysis, using a CT scanner with a 241Am source. Density errors attributed to the equipment are 0.051 and 0.046 Mg m-3 for horizons A and B, respectively. The theoretical value for sample thickness for the Planosol, using this equipment, is 4.0 cm for the horizons A and B. The ideal thickness of samples is approximately 6.0 cm, being smaller for samples of the horizon B in relation to A. Alternatives for the improvement of the efficiency analysis and the reliability of the results obtained by CT are also discussed, and indicate good precision and adaptability of the application of this technology in Planosol (Albaqualf) studies. |
publishDate |
2003 |
dc.date.issued.fl_str_mv |
2003-12 |
dc.date.accessioned.fl_str_mv |
2013-09-06T19:22:53Z |
dc.date.available.fl_str_mv |
2013-09-06T19:22:53Z |
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info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PEDROTTI, A. et al. Planossol soil sample size for computerized tomography measurement of physical parameters. Scientia Agricola, Piracicaba, v. 60, n. 4, p. 735-740, out./dez. 2003. Disponível em: <http://dx.doi.org/10.1590/S0103-90162003000400019 >. Acesso em: 6 set. 2013. |
dc.identifier.uri.fl_str_mv |
https://ri.ufs.br/handle/riufs/711 |
dc.identifier.issn.none.fl_str_mv |
0103-9016 |
identifier_str_mv |
PEDROTTI, A. et al. Planossol soil sample size for computerized tomography measurement of physical parameters. Scientia Agricola, Piracicaba, v. 60, n. 4, p. 735-740, out./dez. 2003. Disponível em: <http://dx.doi.org/10.1590/S0103-90162003000400019 >. Acesso em: 6 set. 2013. 0103-9016 |
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