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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
04/12/2017 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARANHÃO, D. D. C.; PEREIRA, M. G.; FONTANA, A.; VITAL, V. F.; VALLADARES, G. S. |
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Afiliação: |
DEYVID DIEGO CARVALHO MARANHÃO, UFRRJ; MARCOS GERVASIO PEREIRA, UFRRJ; ADEMIR FONTANA, CNPS; VANESSA FRANCIELI VITAL, UEM; GUSTAVO SOUZA VALLADARES, UFPI. |
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Título: |
Comparison of methods for determination of carbon in calcareous soils. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 48, n. 14, p. 1646-1658, 2017. |
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DOI: |
https://doi.org/10.1080/00103624.2017.1373797 |
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Idioma: |
Inglês |
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Conteúdo: |
The global cycle of carbon (C) has raised attention in recent decades due to the great increase in carbon dioxide levels (CO2) levels in the atmosphere and its influence on climate change. Calcareous soils represent a significant fraction of the areas with potential for agriculture and have differential attributes, such as high calcium contents, magnesium, carbonates, and pH values. These attributes have been ignored in analytical procedures despite these characteristics, resulting in an overestimation or underestimation of the soil carbon. Several methods have been proposed for determining the soil carbon contents, however, studies evaluating the analytical procedures of C quantification methods, considering the soil characteristics, such as the calcareous soils, are needed, in order to improve their accuracy. Therefore, the objective of this work was to evaluate and compare methods for C determination and to propose adjustments in the methodology for calcareous soil analysis. The Yeomans and Bremner (YB) was the most efficient method for quantification of organic C among the wet oxidation methods. On the other hand, the Donagemma (WB) method underestimated the organic carbon contents. The results showed that the samples must be macerated and pretreated with a hydrochloric acid solution for the use of CHNS-O, in order to eliminate carbonates in the form of nodules and concretions. |
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Palavras-Chave: |
Análise química do solo; Carbonatos. |
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Thesagro: |
Oxidação. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02096naa a2200217 a 4500
001 2081408
005 2021-11-10
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/00103624.2017.1373797$2DOI
100 1 $aMARANHÃO, D. D. C.
245 $aComparison of methods for determination of carbon in calcareous soils.$h[electronic resource]
260 $c2017
520 $aThe global cycle of carbon (C) has raised attention in recent decades due to the great increase in carbon dioxide levels (CO2) levels in the atmosphere and its influence on climate change. Calcareous soils represent a significant fraction of the areas with potential for agriculture and have differential attributes, such as high calcium contents, magnesium, carbonates, and pH values. These attributes have been ignored in analytical procedures despite these characteristics, resulting in an overestimation or underestimation of the soil carbon. Several methods have been proposed for determining the soil carbon contents, however, studies evaluating the analytical procedures of C quantification methods, considering the soil characteristics, such as the calcareous soils, are needed, in order to improve their accuracy. Therefore, the objective of this work was to evaluate and compare methods for C determination and to propose adjustments in the methodology for calcareous soil analysis. The Yeomans and Bremner (YB) was the most efficient method for quantification of organic C among the wet oxidation methods. On the other hand, the Donagemma (WB) method underestimated the organic carbon contents. The results showed that the samples must be macerated and pretreated with a hydrochloric acid solution for the use of CHNS-O, in order to eliminate carbonates in the form of nodules and concretions.
650 $aOxidação
653 $aAnálise química do solo
653 $aCarbonatos
700 1 $aPEREIRA, M. G.
700 1 $aFONTANA, A.
700 1 $aVITAL, V. F.
700 1 $aVALLADARES, G. S.
773 $tCommunications in Soil Science and Plant Analysis$gv. 48, n. 14, p. 1646-1658, 2017.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
16/06/2008 |
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Data da última atualização: |
30/11/2009 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
AMANCIO, C. O. G. |
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Afiliação: |
Cristhiane Oliviera da Graça Amancio, Embrapa Pantanal. |
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Título: |
O porquê da educação ambiental? |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Corumbá: Embrapa Pantanal, 2005. |
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Páginas: |
3 p. |
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Série: |
(Embrapa Pantanal. Artigo de Divulgação na Mídia, 83) |
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Idioma: |
Português |
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Notas: |
Formato eletrônico. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAP/56332/1/ADM083.pdf
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Marc: |
LEADER 00410nam a2200133 a 4500
001 1809999
005 2009-11-30
008 2005 bl uuuu u00u1 u #d
100 1 $aAMANCIO, C. O. G.
245 $aO porquê da educação ambiental?$h[electronic resource]
260 $aCorumbá: Embrapa Pantanal$c2005
300 $a3 p.
490 $a(Embrapa Pantanal. Artigo de Divulgação na Mídia, 83)
500 $aFormato eletrônico.
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