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| Registros recuperados : 13 | |
| 1. |  | BARROS, G. M.; SANTOS, J. C. B. dos; SOUZA JÚNIOR, V. S. de; DELARMELINDA, E. A.; ARAUJO FILHO, J. C. de; CÂMARA, E. R. G. Association between parent materials and soil attributes along different geological environments in western Pará, Brazil. Acta Amazonica, v. 48, n. 3, p. 261-270, 2018.| Biblioteca(s): Embrapa Solos. |
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| 3. | | ARAÚJO, F. H. V.; SANTOS, J. C. B. dos; SANTOS, J. B. dos; SILVA, A. F. da; RAMOS, R. S.; SILVA, R. S. da; SHABANI, F. Spread of Striga asiatica through suitable climatic conditions: risk assessment in new areas producing Zea mays in South America. Journal of Arid Environments, v. 210, 104924, 2023.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 4. | | SANTOS, J. C. B. dos; SARTOR, L. R.; AZEVEDO, A. C. de; SOUZA JUNIOR, V. S. de; CORRÊA, M. M.; ARAUJO FILHO, J. C. de. Relação Feldspatos e Quartzo em Neossolos provenientes de Gnaisses: Metodologia experimental por Difratometria de Raios X. In: CONGRESSO BRASILEIRO DE CIÊNCIAS DO SOLO, 34., 2013. Florianópolis. Anais... Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2013. 4 p.| Biblioteca(s): Embrapa Solos. |
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| 5. | | SILVA, D. L. de A.; CAMÊLO, D. de L.; ARAUJO FILHO, J. C. de; SANTOS, J. C. B. dos; SOUZA JUNIOR, A. J. de; SOUZA JUNIOR, V.; CORRÊA, M. M. Genesis of clay skins in tropical eutric soils: a case study from NE-Brazil. Catena, v. 202, 105236, Jul. 2021.| Biblioteca(s): Embrapa Solos. |
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| 6. | | SOUSA, J. E. S. de; SANTOS, J. C. B. dos; CORRÊA, M. M.; NASCIMENTO, A. F. do; SCHULZE, S. M. B. B.; FERREIRA, T. O.; ARAUJO FILHO, J. C. de; SOUZA JÚNIOR, V. S. de. Mineralogy and genesis of Planosols under a semi-arid climate, Borborema Plateau, NE Brazil. Catena, v. 184, 104260, Jan. 2020.| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Solos. |
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| 7. | | COSTA, E. U. C. da; SANTOS, J. C. B. dos; AZEVEDO, A. C. de; ARAUJO FILHO, J. C. de; CORRÊA, M. M.; NEVES, L. V. de M. W.; VIDAL-TORRADO, P.; SOUZA-JÚNIOR, V. S. de. Mineral alteration and genesis of Al-rich soils derived from conglomerate deposits in Cabo Basin, NE Brazil. Catena, v. 167, p. 198-211, Aug. 2018.| Biblioteca(s): Embrapa Solos. |
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| 8. | | NEVES, L. V. de M. W.; FRACETTO, F. J. C.; FRACETTO, G. G. M.; ARAUJO FILHO, J. C. de; ARAUJO, J. K. S.; SANTOS, J. C. B. dos; MENDES JÚNIOR, J. P.; SOUZA JÚNIOR, V. D. de. Microbial abundance and C and N stocks in tropical degraded Planosols from semiarid northeastern Brazil. Catena, v. 196, 104931, Jan. 2021.| Biblioteca(s): Embrapa Solos. |
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| 9. | | CÂMARA, E. R. G.; SANTOS, J. C. B. dos; ARAUJO FILHO, J. C. de; SCHULZE, S. M. B. B.; CORRÊA, M. M.; FERREIRA, T. O.; SOUSA, J. E. S. de; SOUZA JÚNIOR, V. S. de. Parent rock-pedogenesis relationship: how the weathering of metamorphic rocks influences the genesis of Planosols and Luvisols under a semiarid climate in NE Brazil. Geoderma, v. 385, 114878, Mar. 2021.| Biblioteca(s): Embrapa Solos. |
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| 10. | | SOUZA JUNIOR, V. S. de; NEVES, L. V. de M. W.; SANTOS, J. C. B. dos; ARAUJO FILHO, J. C. de; CORREA, M. M.; SILVA, L. F. I. da. Weathering of metamorphic rocks and formation of planosols in semi-arid environment, Brazil. In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings... Viçosa, MG: SBCS, 2019. v. 2, p. 50-51. WCSS 2018.| Biblioteca(s): Embrapa Solos. |
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| 11. | | SOUSA, M. G.; ARAUJO, J. K. S.; FRACETTO, G. G. M.; FERREIRA, T. O.; FRACETTO, F. J. C.; ARAUJO FILHO, J. C. de; OTERO, X. L.; SANTOS, J. C. B. dos; SILVA, A. H. N. da; SOUZA JUNIOR, V. S. de. Changes in organic carbon and microbiology community structure due to long-term irrigated agriculture on Luvisols in the Brazilian semi-arid region. Catena, v. 212, 106058, May 2022.| Biblioteca(s): Embrapa Solos. |
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| 12. | | NEVES, L. V. de M. W.; SOUSA, J. E. S. de; SANTOS, J. C. B. dos; ARAUJO FILHO, J. C. de; CORRÊA, M. M.; SOUSA, M. G.; FRACETTO, F. J. C.; FRACETTO, G. G. M.; ARAUJO, J. K. S.; FREIRE, G. A. P.; FERREIRA, T. O.; SOUZA JÚNIOR, V. S. de. Weathering of gneiss saprolites and formation of Planosols under semiarid climate (NE Brazil). Journal of South American Earth Sciences, v. 123, 104206, Mar. 2023.| Biblioteca(s): Embrapa Solos. |
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| 13. | | SOUSA, J. E. S. de; ANDRADE, G. R. P.; ARAUJO FILHO, J. C. de; SANTOS, J. C. B. dos; CORRÊA, M. M.; FERREIRA, T. O.; CAMARGO, P. B. de; ARAÚJO, J. K. S.; SILVA, A. H. N. da; SOUSA, M. G.; SOUZA JÚNIOR, V. S. de. Weathering and mineral alteration of metamorphic rocks and genesis of Planosols along a rainfall gradient in Borborema Province, Northeast Brazil. Geoderma Regional, v. 33, e00642, Jun. 2023.| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 13 | |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
15/06/2021 |
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Data da última atualização: |
03/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, D. L. de A.; CAMÊLO, D. de L.; ARAUJO FILHO, J. C. de; SANTOS, J. C. B. dos; SOUZA JUNIOR, A. J. de; SOUZA JUNIOR, V.; CORRÊA, M. M. |
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Afiliação: |
DAVID LUKAS DE ARRUDA SILVA, UFRPE; DANILO DE LIMA CAMÊLO, UFES; JOSE COELHO DE ARAUJO FILHO, CNPS; JEAN CHEYSON BARROS DOS SANTOS, UFRPE; ARNALDO JOAQUIM DE SOUZA JUNIOR, UFRPE; VALDOMIRO SOUZA JUNIOR, UFRPE; MARCELO METRI CORRÊA, UFAPE. |
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Título: |
Genesis of clay skins in tropical eutric soils: a case study from NE-Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Catena, v. 202, 105236, Jul. 2021. |
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DOI: |
https://doi.org/10.1016/j.catena.2021.105236 |
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Idioma: |
Inglês |
|
Conteúdo: |
Clay skins are morphological features that manifest in soils as a waxy shine, mainly on the surface of aggregates. Their genesis is related to the formation of pellicles or films of clay and micro features of stress on ped faces. Clay skins provide pedogenetic evidence and may indicate previous or current occurrence of flocculation and dispersion, as well as the nature of constituent minerals of the soil. Thus, we aimed to study the genesis of clay skins, testing the hypothesis that they are formed as a result of alternating micro-swelling and shrinking pro-cesses and that the argilluviation is currently inexpressive. For this, a toposequence of eutric soils from meta-morphic rocks (gneiss-migmatite) in a tropical forest environment was studied. Soil sampling based on a structural model of the pedological coverage, as well as physical and chemical analyses; monitoring of clay dispersion in water; coefficient of linear expansivity; x-ray diffractometry; selective dissolution of Fe oxides using sodium citrate-bicarbonate-dithionite and acid ammonium oxalate; optical and electron microscopy analyses; and modelling of x-ray diffractometry patterns using ClaySIM software were carried out. The results indicated that clay dispersion in the studied eutric soils seems to be of little significance during the rainy period since the greater dissociation of bivalent cations such as Ca2+and Mg2+favors the forces of attraction forming cationic bridges, resulting in the union between negatively charged particles. Furthermore, the illite-vermiculite phase may have little influence on the macro-morphological properties of the soils; although on a microscopic scale, it may favor the formation of granostriated b-fabrics. Clay skin formation in soils of a hot, humid tropical climate is essentially controlled by the argilluviation process and by wetting and drying cycles, the expression of this feature being proportional to the quantity of intra-aggregate voids (smaller size voids). Nevertheless, the orientation and metallization process (hematization) of the coatings and infillings seem to determine the expressiveness of the clay skins, and the type of b-fabrics and their development variations are not related, or are insignificant, in regard to the occurrence and degree of development of clay skins. MenosClay skins are morphological features that manifest in soils as a waxy shine, mainly on the surface of aggregates. Their genesis is related to the formation of pellicles or films of clay and micro features of stress on ped faces. Clay skins provide pedogenetic evidence and may indicate previous or current occurrence of flocculation and dispersion, as well as the nature of constituent minerals of the soil. Thus, we aimed to study the genesis of clay skins, testing the hypothesis that they are formed as a result of alternating micro-swelling and shrinking pro-cesses and that the argilluviation is currently inexpressive. For this, a toposequence of eutric soils from meta-morphic rocks (gneiss-migmatite) in a tropical forest environment was studied. Soil sampling based on a structural model of the pedological coverage, as well as physical and chemical analyses; monitoring of clay dispersion in water; coefficient of linear expansivity; x-ray diffractometry; selective dissolution of Fe oxides using sodium citrate-bicarbonate-dithionite and acid ammonium oxalate; optical and electron microscopy analyses; and modelling of x-ray diffractometry patterns using ClaySIM software were carried out. The results indicated that clay dispersion in the studied eutric soils seems to be of little significance during the rainy period since the greater dissociation of bivalent cations such as Ca2+and Mg2+favors the forces of attraction forming cationic bridges, resulting in the union between negati... Mostrar Tudo |
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Palavras-Chave: |
Argilluviation; Cutans; Metallization. |
|
Thesagro: |
Argissolos. |
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Thesaurus NAL: |
Alfisols. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 03097naa a2200265 a 4500
001 2132320
005 2021-11-03
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.catena.2021.105236$2DOI
100 1 $aSILVA, D. L. de A.
245 $aGenesis of clay skins in tropical eutric soils$ba case study from NE-Brazil.$h[electronic resource]
260 $c2021
520 $aClay skins are morphological features that manifest in soils as a waxy shine, mainly on the surface of aggregates. Their genesis is related to the formation of pellicles or films of clay and micro features of stress on ped faces. Clay skins provide pedogenetic evidence and may indicate previous or current occurrence of flocculation and dispersion, as well as the nature of constituent minerals of the soil. Thus, we aimed to study the genesis of clay skins, testing the hypothesis that they are formed as a result of alternating micro-swelling and shrinking pro-cesses and that the argilluviation is currently inexpressive. For this, a toposequence of eutric soils from meta-morphic rocks (gneiss-migmatite) in a tropical forest environment was studied. Soil sampling based on a structural model of the pedological coverage, as well as physical and chemical analyses; monitoring of clay dispersion in water; coefficient of linear expansivity; x-ray diffractometry; selective dissolution of Fe oxides using sodium citrate-bicarbonate-dithionite and acid ammonium oxalate; optical and electron microscopy analyses; and modelling of x-ray diffractometry patterns using ClaySIM software were carried out. The results indicated that clay dispersion in the studied eutric soils seems to be of little significance during the rainy period since the greater dissociation of bivalent cations such as Ca2+and Mg2+favors the forces of attraction forming cationic bridges, resulting in the union between negatively charged particles. Furthermore, the illite-vermiculite phase may have little influence on the macro-morphological properties of the soils; although on a microscopic scale, it may favor the formation of granostriated b-fabrics. Clay skin formation in soils of a hot, humid tropical climate is essentially controlled by the argilluviation process and by wetting and drying cycles, the expression of this feature being proportional to the quantity of intra-aggregate voids (smaller size voids). Nevertheless, the orientation and metallization process (hematization) of the coatings and infillings seem to determine the expressiveness of the clay skins, and the type of b-fabrics and their development variations are not related, or are insignificant, in regard to the occurrence and degree of development of clay skins.
650 $aAlfisols
650 $aArgissolos
653 $aArgilluviation
653 $aCutans
653 $aMetallization
700 1 $aCAMÊLO, D. de L.
700 1 $aARAUJO FILHO, J. C. de
700 1 $aSANTOS, J. C. B. dos
700 1 $aSOUZA JUNIOR, A. J. de
700 1 $aSOUZA JUNIOR, V.
700 1 $aCORRÊA, M. M.
773 $tCatena$gv. 202, 105236, Jul. 2021.
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