Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima

Detalhes bibliográficos
Autor(a) principal: Reis, César
Data de Publicação: 2013
Outros Autores: Carvalho, Juliana Vanir de Souza, Mendonça, Eduardo de Sá, Scala Júnior, Newton La, Reis, Efrain Lázaro, Schaefer, Carlos Ernesto G. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1590/S0100-40422013000900010
http://www.locus.ufv.br/handle/123456789/17070
Resumo: Monitoring of soil carbon storage may indicate possible effects of climate change on the terrestrial environment and it is therefore necessary to understand the influence of redox potential and chemical characteristics of humic substances (HS) of Antarctic soil. Five soils from King George Island were used. HS were extracted, quantified and characterized by potentiometry and the content of total carbon and nitrogen determined. HS of these soils had greater aliphatic character, low content of phenolic groups, lower acidity and lower formal standard electrode potential, compared to HS of soils from other regions, suggesting they are more likely to be oxidized.
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spelling Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica MarítimaRedox titrationsRedox potencialC-CO2 emissionMonitoring of soil carbon storage may indicate possible effects of climate change on the terrestrial environment and it is therefore necessary to understand the influence of redox potential and chemical characteristics of humic substances (HS) of Antarctic soil. Five soils from King George Island were used. HS were extracted, quantified and characterized by potentiometry and the content of total carbon and nitrogen determined. HS of these soils had greater aliphatic character, low content of phenolic groups, lower acidity and lower formal standard electrode potential, compared to HS of soils from other regions, suggesting they are more likely to be oxidized.Química Nova2018-02-01T09:48:17Z2018-02-01T09:48:17Z2013-07-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf16787064http://dx.doi.org/10.1590/S0100-40422013000900010http://www.locus.ufv.br/handle/123456789/17070engv. 36, n. 9, p. 1338-1342, Julho 2013Reis, CésarCarvalho, Juliana Vanir de SouzaMendonça, Eduardo de SáScala Júnior, Newton LaReis, Efrain LázaroSchaefer, Carlos Ernesto G. R.info:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T07:37:51Zoai:locus.ufv.br:123456789/17070Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T07:37:51LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
title Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
spellingShingle Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
Reis, César
Redox titrations
Redox potencial
C-CO2 emission
title_short Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
title_full Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
title_fullStr Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
title_full_unstemmed Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
title_sort Caracterização potenciométrica de substâncias húmicas extraídas de solos da Antártica Marítima
author Reis, César
author_facet Reis, César
Carvalho, Juliana Vanir de Souza
Mendonça, Eduardo de Sá
Scala Júnior, Newton La
Reis, Efrain Lázaro
Schaefer, Carlos Ernesto G. R.
author_role author
author2 Carvalho, Juliana Vanir de Souza
Mendonça, Eduardo de Sá
Scala Júnior, Newton La
Reis, Efrain Lázaro
Schaefer, Carlos Ernesto G. R.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Reis, César
Carvalho, Juliana Vanir de Souza
Mendonça, Eduardo de Sá
Scala Júnior, Newton La
Reis, Efrain Lázaro
Schaefer, Carlos Ernesto G. R.
dc.subject.por.fl_str_mv Redox titrations
Redox potencial
C-CO2 emission
topic Redox titrations
Redox potencial
C-CO2 emission
description Monitoring of soil carbon storage may indicate possible effects of climate change on the terrestrial environment and it is therefore necessary to understand the influence of redox potential and chemical characteristics of humic substances (HS) of Antarctic soil. Five soils from King George Island were used. HS were extracted, quantified and characterized by potentiometry and the content of total carbon and nitrogen determined. HS of these soils had greater aliphatic character, low content of phenolic groups, lower acidity and lower formal standard electrode potential, compared to HS of soils from other regions, suggesting they are more likely to be oxidized.
publishDate 2013
dc.date.none.fl_str_mv 2013-07-05
2018-02-01T09:48:17Z
2018-02-01T09:48:17Z
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 16787064
http://dx.doi.org/10.1590/S0100-40422013000900010
http://www.locus.ufv.br/handle/123456789/17070
identifier_str_mv 16787064
url http://dx.doi.org/10.1590/S0100-40422013000900010
http://www.locus.ufv.br/handle/123456789/17070
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv v. 36, n. 9, p. 1338-1342, Julho 2013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Química Nova
publisher.none.fl_str_mv Química Nova
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
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