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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
06/10/2021 |
Data da última atualização: |
13/10/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Influence of carbonate rocks on soil properties in the humid tropical climate of atlantic forest, Rio de Janeiro-Brazil. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Journal of South American Earth Sciences, v. 112, pt. 1, 103582, Dec. 2021. |
DOI: |
https://doi.org/10.1016/j.jsames.2021.103582 |
Idioma: |
Inglês |
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 |
Thesagro: |
Cambissolo; Mineralogia; Solo Calcário. |
Thesaurus Nal: |
Calcareous soils; Cambisols; Chernozems; Kastanozems; Mineralogy; Weathering. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
27/02/2002 |
Data da última atualização: |
07/11/2017 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
LOPES, C. A.; CARVALHO, S. I. C. |
Afiliação: |
CARLOS ALBERTO LOPES, CNPH; SABRINA ISABEL COSTA DE CARVALHO, CNPH. |
Título: |
Search for resistance to bacterial wilt in a Brazilian Capsicum germplasm collection. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
In: IBWS: INTERNATIONAL BACTERIAL WILT SYMPOSIUM, 3., 2002, Rustenburg. Book of abstracts... Rustenburg, 2002. |
Páginas: |
p. 45. |
Idioma: |
Inglês |
Palavras-Chave: |
Brasil; Distrito Federal. |
Thesagro: |
Bactéria; Capsicum Annuum; Cerrado; Doença de planta; Germoplasma; Pimenta; Pimentão; Ralstonia solanacearum; Variedade resistente. |
Thesaurus NAL: |
Capsicum frutescens; Germplasm; Hot peppers; Plant diseases and disorders; Sweet peppers. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165426/1/digitalizar0222.pdf
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Marc: |
LEADER 00951nam a2200313 a 4500 001 1771053 005 2017-11-07 008 2002 bl uuuu u00u1 u #d 100 1 $aLOPES, C. A. 245 $aSearch for resistance to bacterial wilt in a Brazilian Capsicum germplasm collection.$h[electronic resource] 260 $aIn: IBWS: INTERNATIONAL BACTERIAL WILT SYMPOSIUM, 3., 2002, Rustenburg. Book of abstracts... Rustenburg$c2002 300 $ap. 45. 650 $aCapsicum frutescens 650 $aGermplasm 650 $aHot peppers 650 $aPlant diseases and disorders 650 $aSweet peppers 650 $aBactéria 650 $aCapsicum Annuum 650 $aCerrado 650 $aDoença de planta 650 $aGermoplasma 650 $aPimenta 650 $aPimentão 650 $aRalstonia solanacearum 650 $aVariedade resistente 653 $aBrasil 653 $aDistrito Federal 700 1 $aCARVALHO, S. I. C.
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