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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: |
04/02/2022 |
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Data da última atualização: |
11/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA, M. G.; SILVA, R. C. da; PINHEIRO JUNIOR, C. R.; OLIVEIRA, F. S. de; SILVA NETO, E. C. da; FONTANA, A.; PACHECO, A. A.; PEDRON, F. de A. |
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Afiliação: |
MARCOS GERVASIO PEREIRA, UFRRJ; RAFAEL CIPRIANO DA SILVA, FUNCEME; CARLOS ROBERTO PINHEIRO JUNIOR, UFRRJ; FÁBIO SOARES DE OLIVEIRA, UFMG; EDUARDO CARVALHO DA SILVA NETO, UFRRJ; ADEMIR FONTANA, CNPS; ANDERSON ALMEIDA PACHECO, FUNDAÇÃO RENOVA; FABRÍCIO DE ARAÚJO PEDRON, UFSM. |
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Título: |
Soil genesis on the soft slopes of ancient coastal plains, southeastern Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Catena, v. 210, 105894, Mar. 2022. |
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DOI: |
https://doi.org/10.1016/j.catena.2021.105894 |
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Idioma: |
Inglês |
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Conteúdo: |
Coastal plains are characterized by low-elevation and small altitude variation and occupy an area of 57 million km2 worldwide. Ancient coastal plains that occur in the State of Rio de Janeiro (RJ), Brazil, have their pedological diversity neglected due to the generalization of some soil classes, underestimating the diversity of soils in these regions, hence limiting the evaluation for use and management. The aim of this study was to characterize the diversity of soils in a toposequence along an ancient coastal plain and to understand the pedogenetic processes involved. For this, soil pits were opened in the lower third (P1), middle third (P2), upper third (P3) and at the top (P4) of a toposequence. Soil profiles were characterized for morphological, physical, chemical, mineralogical and micromorphological properties. Profile P1 was classified as Planosol, being formed from colluvial sediments. In this profile, a lithological discontinuity was identified based on the irregularity of the values of silt/clay and coarse sand/fine sand ratios in subsurface. In this profile, limited drainage conditions were also observed. The main formation processes identified were ferrolysis and clay eluviation/illuviation, which promoted the increase of the textural gradient and thickening of the E horizon. Profiles P2 and P3 were classified as Ferralsols, were kaolinitic, with no redox conditions, and with predominance of eluviation/illuviation processes associated with pedoturbation, with a small increment of clay in the subsurface in both profiles. In profile P2, more so than in P3, there was still a strong influence of colluvial sediments, identified by the presence of a lithological discontinuity. For profile P4, a Plinthosol, located at the top of the toposequence, its formation was related to the action of weathering on the underlying acidic granite-gneiss rock. Despite the presence of plinthite, which denoted the occurrence of plinthization, the micromorphological description made it possible to state that it was a relictual condition whose formation occurred under past climatic conditions with higher water table level and which is currently being destroyed. MenosCoastal plains are characterized by low-elevation and small altitude variation and occupy an area of 57 million km2 worldwide. Ancient coastal plains that occur in the State of Rio de Janeiro (RJ), Brazil, have their pedological diversity neglected due to the generalization of some soil classes, underestimating the diversity of soils in these regions, hence limiting the evaluation for use and management. The aim of this study was to characterize the diversity of soils in a toposequence along an ancient coastal plain and to understand the pedogenetic processes involved. For this, soil pits were opened in the lower third (P1), middle third (P2), upper third (P3) and at the top (P4) of a toposequence. Soil profiles were characterized for morphological, physical, chemical, mineralogical and micromorphological properties. Profile P1 was classified as Planosol, being formed from colluvial sediments. In this profile, a lithological discontinuity was identified based on the irregularity of the values of silt/clay and coarse sand/fine sand ratios in subsurface. In this profile, limited drainage conditions were also observed. The main formation processes identified were ferrolysis and clay eluviation/illuviation, which promoted the increase of the textural gradient and thickening of the E horizon. Profiles P2 and P3 were classified as Ferralsols, were kaolinitic, with no redox conditions, and with predominance of eluviation/illuviation processes associated with pedoturbation, with a s... Mostrar Tudo |
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Palavras-Chave: |
Ferrolysis; Lithological discontinuity; Micropedology; Pedogenesis. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02974naa a2200265 a 4500
001 2139674
005 2022-03-11
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.catena.2021.105894$2DOI
100 1 $aPEREIRA, M. G.
245 $aSoil genesis on the soft slopes of ancient coastal plains, southeastern Brazil.$h[electronic resource]
260 $c2022
520 $aCoastal plains are characterized by low-elevation and small altitude variation and occupy an area of 57 million km2 worldwide. Ancient coastal plains that occur in the State of Rio de Janeiro (RJ), Brazil, have their pedological diversity neglected due to the generalization of some soil classes, underestimating the diversity of soils in these regions, hence limiting the evaluation for use and management. The aim of this study was to characterize the diversity of soils in a toposequence along an ancient coastal plain and to understand the pedogenetic processes involved. For this, soil pits were opened in the lower third (P1), middle third (P2), upper third (P3) and at the top (P4) of a toposequence. Soil profiles were characterized for morphological, physical, chemical, mineralogical and micromorphological properties. Profile P1 was classified as Planosol, being formed from colluvial sediments. In this profile, a lithological discontinuity was identified based on the irregularity of the values of silt/clay and coarse sand/fine sand ratios in subsurface. In this profile, limited drainage conditions were also observed. The main formation processes identified were ferrolysis and clay eluviation/illuviation, which promoted the increase of the textural gradient and thickening of the E horizon. Profiles P2 and P3 were classified as Ferralsols, were kaolinitic, with no redox conditions, and with predominance of eluviation/illuviation processes associated with pedoturbation, with a small increment of clay in the subsurface in both profiles. In profile P2, more so than in P3, there was still a strong influence of colluvial sediments, identified by the presence of a lithological discontinuity. For profile P4, a Plinthosol, located at the top of the toposequence, its formation was related to the action of weathering on the underlying acidic granite-gneiss rock. Despite the presence of plinthite, which denoted the occurrence of plinthization, the micromorphological description made it possible to state that it was a relictual condition whose formation occurred under past climatic conditions with higher water table level and which is currently being destroyed.
653 $aFerrolysis
653 $aLithological discontinuity
653 $aMicropedology
653 $aPedogenesis
700 1 $aSILVA, R. C. da
700 1 $aPINHEIRO JUNIOR, C. R.
700 1 $aOLIVEIRA, F. S. de
700 1 $aSILVA NETO, E. C. da
700 1 $aFONTANA, A.
700 1 $aPACHECO, A. A.
700 1 $aPEDRON, F. de A.
773 $tCatena$gv. 210, 105894, Mar. 2022.
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| 3. |  | MARTINS, E. S.; PRACA, L. B.; MONNERAT, R. Characterization of strains of Bacillus thuringiensis effective against bolweevil Anthonomus grandis Boema, 1843. In: INTERNATIONAL COLLOQUIUM ON INVERTEBRATE PATHOLOGY AND MICROBIAL CONTROL, 8.; INTERNATIONAL CONFERENCE ON BACILLUS THURINGIENSIS 6.; ANNUAL MEETING OF THE SIP, 35., 2002, Foz do Iguassu. Program and abstracts. Londrina: Embrapa Soja: Embrapa Recursos Genéticos e Biotecnologia: UEL: SIP, 2002. p. 86. (Embrapa Soja. Documentos, 183; Embrapa Recursos Genéticos e Biotecnologia, 73).| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 17. | | MARTINS, E. S.; DUMAS, V. F.; BRAZ, S. V.; MONNERAT, R. G.; RIBEIRO, M. R. Análise funcional da proteína CRY1B de Bacillus thuyringiensis ativa contra o bicudo do algodoeiro (Anthonomus grandis boheman, 1843). In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 13., 2008, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. Resumo 068. p. 113.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 20. | | QUEIROZ, P. R.; MARTINS, E. S.; MONNERAT, R. G.; LIMA, L. H. C. Análise da variabilidade genética de populações das américas de Spodoptera frugiperda (J.E. SMITH, 1797) (LEPIDOPTERA: NOCTUIDAE) por meio de marcadores moleculares. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 9., 2004, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2004. p. 111.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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