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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
10/11/2021 |
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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: |
VALLADARES, G. S.; PEREIRA, M. G.; BENITES, V. de M.; ANJOS, L. H. C. dos; EBELING, A. G.; GUARESCHI, R. F. |
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Afiliação: |
GUSTAVO SOUZA VALLADARES, UFPI; MARCOS GERVASIO PEREIRA, UFRRJ; VINICIUS DE MELO BENITES, CNPS; LÚCIA HELENA CUNHA DOS ANJOS, UFRRJ; ADIERSON GILVANI EBELING, INCRA; RONI FERNANDES GUARESCHI, UFRRJ. |
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Título: |
Carbon and nitrogen stocks and humic fractions in Brazilian organosols. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 40, e0151317, 2016. |
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DOI: |
https://doi.org/10.1590/18069657rbcs20151317 |
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Idioma: |
Inglês |
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Conteúdo: |
Despite limited geographic expression of Organosols in Brazil, their high carbon storage capacity and natural environmental vulnerability justifies further studies on C and N stocks in these soils and their relationship to the nature of organic matter. Evaluation of physical and chemical properties of organic soils and their ability to store C is important so as to develop sustainable management practices for their preservation. The objectives of the study were to measure the total organic carbon stock (OCst), total nitrogen stock (Nst), and humic fractions in Organosols from different environments and regions of Brazil, and to correlate the data with soil chemical (pH, P, K, Ca2+, Mg2+, Al3+, H+Al, CEC, V) and physical properties (soil bulk density, Bd; organic matter density, OMd; total pore space, TPS; minimum residue, MinR; and proportion of mineral matter, MM), and degree of organic matter decomposition (rubbed fiber content; pyrophosphate index, PyI; and von Post index). For that purpose, 18 Organosol profiles, in a total of 49 horizons, were sampled under different land usage and plant coverage conditions. The profiles were located in the following Brazilian states - Alagoas, Bahia, Distrito Federal, Espírito Santo, Mato Grosso do Sul, Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, and São Paulo. The OCst and Nst varied significantly among horizons and profiles. The Organosols exhibited, on average, 203.59 Mg ha-1 OCst and 8.30 Mg ha-1 Nst, and the highest values were found in profiles with pasture usage. The content of the humic fraction (humin, HUM; fulvic acid, FAF; and humic acid, HAF) and C storage varied in the soil horizons and profiles according to the degree of decomposition and other factors of soil formation. The OCst, Nst, OMd and the C stocks in the humic fractions were positively correlated. The values of acidity were lower in the soils with higher contents of mineral material, and low pH values were related to a high C/N ratio. The OCst and Nst were correlated with different soil properties, the most important being the degree of soil organic matter decomposition, which was inversely correlated. MenosDespite limited geographic expression of Organosols in Brazil, their high carbon storage capacity and natural environmental vulnerability justifies further studies on C and N stocks in these soils and their relationship to the nature of organic matter. Evaluation of physical and chemical properties of organic soils and their ability to store C is important so as to develop sustainable management practices for their preservation. The objectives of the study were to measure the total organic carbon stock (OCst), total nitrogen stock (Nst), and humic fractions in Organosols from different environments and regions of Brazil, and to correlate the data with soil chemical (pH, P, K, Ca2+, Mg2+, Al3+, H+Al, CEC, V) and physical properties (soil bulk density, Bd; organic matter density, OMd; total pore space, TPS; minimum residue, MinR; and proportion of mineral matter, MM), and degree of organic matter decomposition (rubbed fiber content; pyrophosphate index, PyI; and von Post index). For that purpose, 18 Organosol profiles, in a total of 49 horizons, were sampled under different land usage and plant coverage conditions. The profiles were located in the following Brazilian states - Alagoas, Bahia, Distrito Federal, Espírito Santo, Mato Grosso do Sul, Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, and São Paulo. The OCst and Nst varied significantly among horizons and profiles. The Organosols exhibited, on average, 203.59 Mg ha-1 OCst and 8.30 Mg ha-1 Nst, a... Mostrar Tudo |
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Palavras-Chave: |
Histic horizon; Physical and chemical properties. |
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Thesagro: |
Matéria Orgânica; Solo. |
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Thesaurus Nal: |
Humic substances; Soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227591/1/Carbon-and-nitrogen-stocks-and-humic-fractions-in-Brazilian-organosols-2016.pdf
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Marc: |
LEADER 03003naa a2200265 a 4500
001 2135980
005 2021-11-10
008 2016 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/18069657rbcs20151317$2DOI
100 1 $aVALLADARES, G. S.
245 $aCarbon and nitrogen stocks and humic fractions in Brazilian organosols.$h[electronic resource]
260 $c2016
520 $aDespite limited geographic expression of Organosols in Brazil, their high carbon storage capacity and natural environmental vulnerability justifies further studies on C and N stocks in these soils and their relationship to the nature of organic matter. Evaluation of physical and chemical properties of organic soils and their ability to store C is important so as to develop sustainable management practices for their preservation. The objectives of the study were to measure the total organic carbon stock (OCst), total nitrogen stock (Nst), and humic fractions in Organosols from different environments and regions of Brazil, and to correlate the data with soil chemical (pH, P, K, Ca2+, Mg2+, Al3+, H+Al, CEC, V) and physical properties (soil bulk density, Bd; organic matter density, OMd; total pore space, TPS; minimum residue, MinR; and proportion of mineral matter, MM), and degree of organic matter decomposition (rubbed fiber content; pyrophosphate index, PyI; and von Post index). For that purpose, 18 Organosol profiles, in a total of 49 horizons, were sampled under different land usage and plant coverage conditions. The profiles were located in the following Brazilian states - Alagoas, Bahia, Distrito Federal, Espírito Santo, Mato Grosso do Sul, Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, and São Paulo. The OCst and Nst varied significantly among horizons and profiles. The Organosols exhibited, on average, 203.59 Mg ha-1 OCst and 8.30 Mg ha-1 Nst, and the highest values were found in profiles with pasture usage. The content of the humic fraction (humin, HUM; fulvic acid, FAF; and humic acid, HAF) and C storage varied in the soil horizons and profiles according to the degree of decomposition and other factors of soil formation. The OCst, Nst, OMd and the C stocks in the humic fractions were positively correlated. The values of acidity were lower in the soils with higher contents of mineral material, and low pH values were related to a high C/N ratio. The OCst and Nst were correlated with different soil properties, the most important being the degree of soil organic matter decomposition, which was inversely correlated.
650 $aHumic substances
650 $aSoil organic matter
650 $aMatéria Orgânica
650 $aSolo
653 $aHistic horizon
653 $aPhysical and chemical properties
700 1 $aPEREIRA, M. G.
700 1 $aBENITES, V. de M.
700 1 $aANJOS, L. H. C. dos
700 1 $aEBELING, A. G.
700 1 $aGUARESCHI, R. F.
773 $tRevista Brasileira de Ciência do Solo$gv. 40, e0151317, 2016.
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Registro original: |
Embrapa Solos (CNPS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
30/09/2010 |
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Data da última atualização: |
30/09/2010 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
ZULLO JUNIOR, J.; PINTO, H. S.; ASSAD, E. D. |
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Afiliação: |
JURANDIR ZULLO JUNIOR, UNICAMP, CEPAGRI; HILTON SILVEIRA PINTO, UNICAMP, CEPAGRI; EDUARDO DELGADO ASSAD, CNPTIA. |
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Título: |
Utilização de modelos agroclimatológicos e agrometeorológicos no planejamento e na gestão ambiental, por meio da redução de riscos na agricultura. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: GOMES, M. A. F.; PESSOA, M. C. P. Y. (Ed.). Planejamento ambiental do espaço rural com ênfase para microbacias hidrográficas: manejo de recurso hídricos, ferramentas computacionais e educação ambiental. Brasília, DF: Embrapa Informação Tecnológica; Jaguariúna: Embrapa Meio Ambiente, 2010. |
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Páginas: |
p. 147-166. |
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Idioma: |
Português |
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Conteúdo: |
Zonemamento de riscos climáticos. Zoneamento agroclimático para a cafeicultura no estado de São Paulo. Zoneamento de riscos climáticos para a cultura de milho (Zea mays L.) no Estado de São Paulo. Monitoramento agrometeorológico. |
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Thesagro: |
Clima. |
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Thesaurus NAL: |
Climate. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01051naa a2200181 a 4500
001 1863294
005 2010-09-30
008 2010 bl uuuu u00u1 u #d
100 1 $aZULLO JUNIOR, J.
245 $aUtilização de modelos agroclimatológicos e agrometeorológicos no planejamento e na gestão ambiental, por meio da redução de riscos na agricultura.
260 $c2010
300 $ap. 147-166.
520 $aZonemamento de riscos climáticos. Zoneamento agroclimático para a cafeicultura no estado de São Paulo. Zoneamento de riscos climáticos para a cultura de milho (Zea mays L.) no Estado de São Paulo. Monitoramento agrometeorológico.
650 $aClimate
650 $aClima
700 1 $aPINTO, H. S.
700 1 $aASSAD, E. D.
773 $tIn: GOMES, M. A. F.; PESSOA, M. C. P. Y. (Ed.). Planejamento ambiental do espaço rural com ênfase para microbacias hidrográficas: manejo de recurso hídricos, ferramentas computacionais e educação ambiental. Brasília, DF: Embrapa Informação Tecnológica; Jaguariúna: Embrapa Meio Ambiente, 2010.
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Embrapa Agricultura Digital (CNPTIA) |
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