Methods of soil organic carbon determination in Brazilian savannah soils

Detalhes bibliográficos
Autor(a) principal: Sato,Juliana Hiromi
Data de Publicação: 2014
Outros Autores: Figueiredo,Cícero Célio de, Marchão,Robélio Leandro, Madari,Beáta Emöke, Benedito,Luiz Eduardo Celino, Busato,Jader Galba, Souza,Diego Mendes de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000400007
Resumo: Several methods exist for determining soil organic carbon, and each one has its own advantages and limitations. Consequently, a comparison of the experimental results obtained when these methods are employed is hampered, causing problems in the comparison of carbon stocks in soils. This study aimed at evaluating the analytical procedures used in the determination of carbon and their relationships with soil mineralogy and texture. Wet combustion methods, including Walkley-Black, Mebius and Colorimetric determination as well as dry combustion methods, such as Elemental and Gravimetric Analysis were used. Quantitative textural and mineralogical (kaolinite, goethite and gibbsite) analyses were also carried out. The wet digestion methods underestimated the concentration of organic carbon, while the gravimetric method overestimated. Soil mineralogy interfered with the determination of carbon, with emphasis on the gravimetric method that was greatly influenced by gibbsite.
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spelling Methods of soil organic carbon determination in Brazilian savannah soilssoil organic matterwet combustiondry combustionSeveral methods exist for determining soil organic carbon, and each one has its own advantages and limitations. Consequently, a comparison of the experimental results obtained when these methods are employed is hampered, causing problems in the comparison of carbon stocks in soils. This study aimed at evaluating the analytical procedures used in the determination of carbon and their relationships with soil mineralogy and texture. Wet combustion methods, including Walkley-Black, Mebius and Colorimetric determination as well as dry combustion methods, such as Elemental and Gravimetric Analysis were used. Quantitative textural and mineralogical (kaolinite, goethite and gibbsite) analyses were also carried out. The wet digestion methods underestimated the concentration of organic carbon, while the gravimetric method overestimated. Soil mineralogy interfered with the determination of carbon, with emphasis on the gravimetric method that was greatly influenced by gibbsite.Escola Superior de Agricultura "Luiz de Queiroz"2014-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000400007Scientia Agricola v.71 n.4 2014reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0103-9016-2013-0306info:eu-repo/semantics/openAccessSato,Juliana HiromiFigueiredo,Cícero Célio deMarchão,Robélio LeandroMadari,Beáta EmökeBenedito,Luiz Eduardo CelinoBusato,Jader GalbaSouza,Diego Mendes deeng2014-07-21T00:00:00Zoai:scielo:S0103-90162014000400007Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2014-07-21T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Methods of soil organic carbon determination in Brazilian savannah soils
title Methods of soil organic carbon determination in Brazilian savannah soils
spellingShingle Methods of soil organic carbon determination in Brazilian savannah soils
Sato,Juliana Hiromi
soil organic matter
wet combustion
dry combustion
title_short Methods of soil organic carbon determination in Brazilian savannah soils
title_full Methods of soil organic carbon determination in Brazilian savannah soils
title_fullStr Methods of soil organic carbon determination in Brazilian savannah soils
title_full_unstemmed Methods of soil organic carbon determination in Brazilian savannah soils
title_sort Methods of soil organic carbon determination in Brazilian savannah soils
author Sato,Juliana Hiromi
author_facet Sato,Juliana Hiromi
Figueiredo,Cícero Célio de
Marchão,Robélio Leandro
Madari,Beáta Emöke
Benedito,Luiz Eduardo Celino
Busato,Jader Galba
Souza,Diego Mendes de
author_role author
author2 Figueiredo,Cícero Célio de
Marchão,Robélio Leandro
Madari,Beáta Emöke
Benedito,Luiz Eduardo Celino
Busato,Jader Galba
Souza,Diego Mendes de
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Sato,Juliana Hiromi
Figueiredo,Cícero Célio de
Marchão,Robélio Leandro
Madari,Beáta Emöke
Benedito,Luiz Eduardo Celino
Busato,Jader Galba
Souza,Diego Mendes de
dc.subject.por.fl_str_mv soil organic matter
wet combustion
dry combustion
topic soil organic matter
wet combustion
dry combustion
description Several methods exist for determining soil organic carbon, and each one has its own advantages and limitations. Consequently, a comparison of the experimental results obtained when these methods are employed is hampered, causing problems in the comparison of carbon stocks in soils. This study aimed at evaluating the analytical procedures used in the determination of carbon and their relationships with soil mineralogy and texture. Wet combustion methods, including Walkley-Black, Mebius and Colorimetric determination as well as dry combustion methods, such as Elemental and Gravimetric Analysis were used. Quantitative textural and mineralogical (kaolinite, goethite and gibbsite) analyses were also carried out. The wet digestion methods underestimated the concentration of organic carbon, while the gravimetric method overestimated. Soil mineralogy interfered with the determination of carbon, with emphasis on the gravimetric method that was greatly influenced by gibbsite.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-01
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=S0103-90162014000400007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000400007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-9016-2013-0306
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 Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.71 n.4 2014
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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