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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: |
06/10/2021 |
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Data da última atualização: |
13/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PINHEIRO JUNIOR, C. R.; SILVA, R. C. da; SILVA NETO, E. C. da; AZEVEDO, A. C. de; NASCIMENTO, C. W. R. do; FONTANA, A.; SOUZA JÚNIOR, V. S. de; ANJOS, L. H. C. dos; PEREIRA, M. G. |
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Afiliação: |
CARLOS ROBERTO PINHEIRO JUNIOR, UFRRJ; RAFAEL CIPRIANO DA SILVA, FUNDAÇÃO CEARENSE DE METEOROLOGIA E RECURSOS HÍDRICOS; EDUARDO CARVALHO DA SILVA NETO, UFRRJ; ANTÔNIO CARLOS DE AZEVEDO, ESALQ; CARLOS WAGNER RODRIGUES DO NASCIMENTO, UFRRJ; ADEMIR FONTANA, CNPS; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE; LÚCIA HELENA CUNHA DOS ANJOS, UFRRJ; MARCOS GERVASIO PEREIRA, UFRRJ. |
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Título: |
Influence of carbonate rocks on soil properties in the humid tropical climate of atlantic forest, Rio de Janeiro-Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of South American Earth Sciences, v. 112, pt. 1, 103582, Dec. 2021. |
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DOI: |
https://doi.org/10.1016/j.jsames.2021.103582 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil carbonate accumulation plays an important role in C sequestration, accounting for approximately 40% of the C stored in soils worldwide. Under humid tropical climate these carbonates are rapidly dissolved, intensifying CO2 emissions. Despite this, little is known about the weathering of carbonates in areas with complex geology. This study aimed to evaluate the influence of the parent material on soil attributes and weathering processes under humid tropical climate conditions along toposequences formed by dolomitic marbles and calc-silicate rocks interspersed with garnet-biotite gneiss. Samples and soils profiles were collected on sites of both parental materials and at different points of a toposequence, namely: upper third, middle third and lower third of a slope. The profiles were analyzed for their morphological, physical, chemical and mineralogical attributes. The attributes of soils formed from metamorphic sedimentary rocks were more influenced by geological processes than pedological ones. It was found that the nature of the parent material was the main responsible for the attributes of the profiles, especially the strongly alkaline pH, being greater than 8.0 in most soil horizons, and the high contents of exchangeable Ca2+ and CaCO3 equivalent, with maximum values of 40.6 cmolc kg-1 and 763 g kg-1, respectively. As for mineralogical composition, it was verified the occurrence of minerals such as talc, vermiculite and Fe and Ti oxides, with metamorphic processes and the addition of hydrothermal fluids being the main responsible for the presence of these minerals. The supply of high contents of basic cations, with maximum values of 61.4 cmolc kg-1, high Si/Al ratio (reaching values close to 5.0) and the high contents of CaCO3 conditioning the strongly alkaline pH hinder the dissolution of silicates, even those with low resistance to weathering, despite the hot and humid climate conditions. The action of weathering processes in humid tropical climate is more marked in acidic materials, being responsible for the in situ formation of kaolinite from the alteration of mica and feldspar. MenosSoil carbonate accumulation plays an important role in C sequestration, accounting for approximately 40% of the C stored in soils worldwide. Under humid tropical climate these carbonates are rapidly dissolved, intensifying CO2 emissions. Despite this, little is known about the weathering of carbonates in areas with complex geology. This study aimed to evaluate the influence of the parent material on soil attributes and weathering processes under humid tropical climate conditions along toposequences formed by dolomitic marbles and calc-silicate rocks interspersed with garnet-biotite gneiss. Samples and soils profiles were collected on sites of both parental materials and at different points of a toposequence, namely: upper third, middle third and lower third of a slope. The profiles were analyzed for their morphological, physical, chemical and mineralogical attributes. The attributes of soils formed from metamorphic sedimentary rocks were more influenced by geological processes than pedological ones. It was found that the nature of the parent material was the main responsible for the attributes of the profiles, especially the strongly alkaline pH, being greater than 8.0 in most soil horizons, and the high contents of exchangeable Ca2+ and CaCO3 equivalent, with maximum values of 40.6 cmolc kg-1 and 763 g kg-1, respectively. As for mineralogical composition, it was verified the occurrence of minerals such as talc, vermiculite and Fe and Ti oxides, with metamorphic processes an... Mostrar Tudo |
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Thesagro: |
Cambissolo; Mineralogia; Solo Calcário. |
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Thesaurus Nal: |
Calcareous soils; Cambisols; Chernozems; Kastanozems; Mineralogy; Weathering. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03176naa a2200337 a 4500
001 2135048
005 2021-10-13
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jsames.2021.103582$2DOI
100 1 $aPINHEIRO JUNIOR, C. R.
245 $aInfluence of carbonate rocks on soil properties in the humid tropical climate of atlantic forest, Rio de Janeiro-Brazil.$h[electronic resource]
260 $c2021
520 $aSoil carbonate accumulation plays an important role in C sequestration, accounting for approximately 40% of the C stored in soils worldwide. Under humid tropical climate these carbonates are rapidly dissolved, intensifying CO2 emissions. Despite this, little is known about the weathering of carbonates in areas with complex geology. This study aimed to evaluate the influence of the parent material on soil attributes and weathering processes under humid tropical climate conditions along toposequences formed by dolomitic marbles and calc-silicate rocks interspersed with garnet-biotite gneiss. Samples and soils profiles were collected on sites of both parental materials and at different points of a toposequence, namely: upper third, middle third and lower third of a slope. The profiles were analyzed for their morphological, physical, chemical and mineralogical attributes. The attributes of soils formed from metamorphic sedimentary rocks were more influenced by geological processes than pedological ones. It was found that the nature of the parent material was the main responsible for the attributes of the profiles, especially the strongly alkaline pH, being greater than 8.0 in most soil horizons, and the high contents of exchangeable Ca2+ and CaCO3 equivalent, with maximum values of 40.6 cmolc kg-1 and 763 g kg-1, respectively. As for mineralogical composition, it was verified the occurrence of minerals such as talc, vermiculite and Fe and Ti oxides, with metamorphic processes and the addition of hydrothermal fluids being the main responsible for the presence of these minerals. The supply of high contents of basic cations, with maximum values of 61.4 cmolc kg-1, high Si/Al ratio (reaching values close to 5.0) and the high contents of CaCO3 conditioning the strongly alkaline pH hinder the dissolution of silicates, even those with low resistance to weathering, despite the hot and humid climate conditions. The action of weathering processes in humid tropical climate is more marked in acidic materials, being responsible for the in situ formation of kaolinite from the alteration of mica and feldspar.
650 $aCalcareous soils
650 $aCambisols
650 $aChernozems
650 $aKastanozems
650 $aMineralogy
650 $aWeathering
650 $aCambissolo
650 $aMineralogia
650 $aSolo Calcário
700 1 $aSILVA, R. C. da
700 1 $aSILVA NETO, E. C. da
700 1 $aAZEVEDO, A. C. de
700 1 $aNASCIMENTO, C. W. R. do
700 1 $aFONTANA, A.
700 1 $aSOUZA JÚNIOR, V. S. de
700 1 $aANJOS, L. H. C. dos
700 1 $aPEREIRA, M. G.
773 $tJournal of South American Earth Sciences$gv. 112, pt. 1, 103582, Dec. 2021.
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| 10. |  | CORREZZI, A. C.; DIAS, S. C.; FRANCO, O. L.; BATISTA, C. L.; RAMOS, C. S.; GOMES, D. G.; SILVA, O. N.; MIGLIOLIO, L.; SA, M. F. G. de; OLIVEIRA, U. A.; SILVA, M. C. M. da. Biotechnological potential of the brazilian cerrado plants: investigating the inhibition of insect alpha amylases. In: CONGRESSO BRASILEIRO DE BIOTECNOLOGIA, 3., 2010, Fortaleza. Programa e resumos. Brasília, DF: SBBiotec, 2010. p. 146.| Tipo: Resumo em Anais de Congresso |
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