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| 6. |  | AZEVEDO, A. C. de; INDA JUNIOR, A. V.; DALMOLIN, R. S. D.; ZACO, A.; ALMEIDA, P. S. G. de; BRAUCKS, A.; SAIDELLES, F. Anisotropia em solos de uma vertente na encosta basáltica do RS. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.3, p. 1592-1594.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 7. | | INDA JUNIOR, A. V.; AZEVEDO, A. C. de; DALMOLIN, R. S. D.; ZAGO, A.; SAIDELLES, F.; ALMEIDA, S. G. de; BRAUCKS, A. Avaliação da contribuição aloctone em solos através de análise sedimentológica da encosta Basáltica do RS. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.3, p. 1595-1597.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 8. | | SCHUCH, L. A.; ZAGO, A.; AZEVEDO, A. C. de; REINERT, D. J.; BARRETO, W. de O.; SANTOS, H. G. dos; NORDEMANN, D. J. R. Chemical, physical and mineralogical analysis of soil and marine sediments from King George Island, South Shetland Archipelago, Antarctica. Serie Científica INACH, n. 47, p. 9-17, 1997.| Biblioteca(s): Embrapa Solos. |
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| 9. | | VICTÓRIO, C. P.; AZEVEDO, A. C. DE; SILVEIRA, E. G. P. DA; SOUZA, M. DA C.; SATO, A.; GAMA, P. E.; BIZZO, H. R.; ARRUDA, R. C. O. Leaf essential oils and volatiles, histochemistry and micromorphology of Neomitranthes obscura (DC.) N. Silveira (Myrtaceae) growing in sandy coastal plains of Rio de Janeiro. Biochemical Systematics and Ecology, v. 78, p. 66-76, 2018.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 10. | | BENTO, C. B. P.; SILVA, M. G. da; AZEVEDO, A. C. de; LOPES, D. R. G.; SOUZA, S. M.; PEREIRA, L. G. R.; MANTOVANI, H. C. Influência de diferentes antimicrobianos na digestibilidade in vitro de dietas ricas em forragem ou concentrado. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 52., 2015, Belo Horizonte. Zootecnia: otimizando recursos e potencialidades: anais. Belo Horizonte: Sociedade Brasileira de Zootecnia, 2015.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | 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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| 12. | | PINHEIRO JUNIOR, C. R.; PEREIRA, M. G.; AZEVEDO, A. C. de; HUYSSTEEN, C. van; ANJOS, L. H. C. dos; FONTANA, A.; SILVA NETO, E. C. da; VIEIRA, J. N.; SANTOS, T. G. Genesis and classification of carbonate soils in the State of Rio de Janeiro, Brazil. Journal of South American Earth Sciences, v. 108, 103183, Jun. 2021.| Biblioteca(s): Embrapa Solos. |
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| 13. | | 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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| 14. | | 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. Influence of carbonate rocks on soil properties in the humid tropical climate of atlantic forest, Rio de Janeiro-Brazil. Journal of South American Earth Sciences, v. 112, pt. 1, 103582, Dec. 2021.| Biblioteca(s): Embrapa Solos. |
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| 15. | | PEREIRA, M. G.; SILVA, R. C. da; PINHEIRO JUNIOR, C. R.; SILVA NETO E. C. da; FONTANA, A.; SCHIAVO, J. A.; MARANHÃO, D. D. C.; AZEVEDO, A. C. de; PACHECO, A. A. A multi-proxy study of Umbric Ferralsols genesis in a high-mountain environment in Rio de Janeiro state. Earth Surface Processes and Landforms, v. 48, n. 4, p. 721-734, Mar. 2023.| Biblioteca(s): Embrapa Solos. |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
21/09/2021 |
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Data da última atualização: |
21/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ALLEONI, L. R. F.; PEIXOTO, R. T. dos G.; AZEVEDO, A. C. de; MELO, L. C. A. |
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Afiliação: |
LUIS REYNALDO FERRACCIU ALLEONI, ESALQ/USP; RICARDO TRIPPIA DOS G PEIXOTO, CNPS; ANTONIO CARLOS DE AZEVEDO, USP; LEONIDAS CARRIJO AZEVEDO MELO, USP. |
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Título: |
Components of surface charge in tropical soils with contrasting mineralogies. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Soil Science, v. 174, n. 11, p. 629-638, Nov. 2009. |
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DOI: |
http://doi.org/10.1097/SS.0b013e3181c17a93 |
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Idioma: |
Inglês |
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Conteúdo: |
Study of surface electric charges of soil colloids helps in understanding the physicochemical phenomena that influence the capacity of retaining nutrients and their availability to plants. The structural charge (sigma(0), (min)), the variable charge (sigma(q, min)), and the organic matter (OM) charge (sigma(total) (OM)) of 12 tropical soils with contrasting mineralogies were evaluated based on the difference of selectivity for Cs+ and Li+ between the functional ionizable surfaces groups and the mineral 2:1 siloxane surface. Soils were divided into three groups: G1, soils with a predominance of kaolinite and gibbsite in the clay fraction; G2, soils with hydroxy-interlayered 2:1 minerals; and G3, soils with smectite but without hydroxy-interlayered 2:1 minerals. The Cs absorption method was efficient for detecting the charge components in tropical soils. The mineral structural charge contributed 11% and 16%, 28% and 31%, and 52% and 59% of total soil charge of A and B horizons of soils from groups G 1, G2, and G3, respectively. On the other hand, OM contributed 53% and 37%, 48% and 41%, and 21% and 20% of total charge for the same samples, respectively, In highly weathered soils of group G I and, to a lesser extent, in soils in group G2, surface charges depended mainly on their variable components, resulting from the OM (sigma(toal) (OM)), as well as from imperfections found in 1:1 minerals (sigma(q, min)). The importance of OM in determining the magnitude of electric charges in humid tropical soils is highlighted. MenosStudy of surface electric charges of soil colloids helps in understanding the physicochemical phenomena that influence the capacity of retaining nutrients and their availability to plants. The structural charge (sigma(0), (min)), the variable charge (sigma(q, min)), and the organic matter (OM) charge (sigma(total) (OM)) of 12 tropical soils with contrasting mineralogies were evaluated based on the difference of selectivity for Cs+ and Li+ between the functional ionizable surfaces groups and the mineral 2:1 siloxane surface. Soils were divided into three groups: G1, soils with a predominance of kaolinite and gibbsite in the clay fraction; G2, soils with hydroxy-interlayered 2:1 minerals; and G3, soils with smectite but without hydroxy-interlayered 2:1 minerals. The Cs absorption method was efficient for detecting the charge components in tropical soils. The mineral structural charge contributed 11% and 16%, 28% and 31%, and 52% and 59% of total soil charge of A and B horizons of soils from groups G 1, G2, and G3, respectively. On the other hand, OM contributed 53% and 37%, 48% and 41%, and 21% and 20% of total charge for the same samples, respectively, In highly weathered soils of group G I and, to a lesser extent, in soils in group G2, surface charges depended mainly on their variable components, resulting from the OM (sigma(toal) (OM)), as well as from imperfections found in 1:1 minerals (sigma(q, min)). The importance of OM in determining the magnitude of electric charges ... Mostrar Tudo |
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Thesagro: |
Matéria Orgânica; Solo. |
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Thesaurus NAL: |
Soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02176naa a2200205 a 4500
001 2134609
005 2021-09-21
008 2009 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.1097/SS.0b013e3181c17a93$2DOI
100 1 $aALLEONI, L. R. F.
245 $aComponents of surface charge in tropical soils with contrasting mineralogies.$h[electronic resource]
260 $c2009
520 $aStudy of surface electric charges of soil colloids helps in understanding the physicochemical phenomena that influence the capacity of retaining nutrients and their availability to plants. The structural charge (sigma(0), (min)), the variable charge (sigma(q, min)), and the organic matter (OM) charge (sigma(total) (OM)) of 12 tropical soils with contrasting mineralogies were evaluated based on the difference of selectivity for Cs+ and Li+ between the functional ionizable surfaces groups and the mineral 2:1 siloxane surface. Soils were divided into three groups: G1, soils with a predominance of kaolinite and gibbsite in the clay fraction; G2, soils with hydroxy-interlayered 2:1 minerals; and G3, soils with smectite but without hydroxy-interlayered 2:1 minerals. The Cs absorption method was efficient for detecting the charge components in tropical soils. The mineral structural charge contributed 11% and 16%, 28% and 31%, and 52% and 59% of total soil charge of A and B horizons of soils from groups G 1, G2, and G3, respectively. On the other hand, OM contributed 53% and 37%, 48% and 41%, and 21% and 20% of total charge for the same samples, respectively, In highly weathered soils of group G I and, to a lesser extent, in soils in group G2, surface charges depended mainly on their variable components, resulting from the OM (sigma(toal) (OM)), as well as from imperfections found in 1:1 minerals (sigma(q, min)). The importance of OM in determining the magnitude of electric charges in humid tropical soils is highlighted.
650 $aSoil organic matter
650 $aMatéria Orgânica
650 $aSolo
700 1 $aPEIXOTO, R. T. dos G.
700 1 $aAZEVEDO, A. C. de
700 1 $aMELO, L. C. A.
773 $tSoil Science$gv. 174, n. 11, p. 629-638, Nov. 2009.
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