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| Registros recuperados : 161 | |
| Registros recuperados : 161 | |
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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. |
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Data corrente: |
20/09/2021 |
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Data da última atualização: |
20/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
PIRES, L. F.; MACEDO, J. R. de; SOUZA, M. D. de; BACCHI, O. O. S.; REICHARDT, K. |
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Afiliação: |
LUIZ F. PIRES, CENA; JOSE RONALDO DE MACEDO, CNPS; MANOEL DORNELAS DE SOUZA, CNPMA; OSNY O. S. BACCHI, CENA; KLAUS REICHARDT, CENA. |
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Título: |
Gamma-ray computed tomography to characterize soil surface sealing. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Applied Radiation and Isotopes, v. 57, n. 3, p. 375-380, Sept. 2002. |
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DOI: |
https://doi.org/10.1016/S0969-8043(02)00098-2 |
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Idioma: |
Inglês |
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Conteúdo: |
The application of sewage sludge as a fertilizer on soils may cause compacted surface layers (surface sealing), which can promote changes on soil physical properties. The objective of this work was to study the use of gamma-ray computed tomography, as a diagnostic tool for the evaluation of this sealing process through the measurement of soil bulk density distribution of the soil surface layer of samples subjected to sewage sludge application. Tomographic images were taken with a first generation tomograph with a resolution of 1 mm. The image analysis opened the possibility to obtain soil bulk density profiles and average soil bulk densities of the surface layer and to detect the presence of soil surface sealing. The sealing crust thickness was estimated to be in the range of 2-4 mm. |
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Palavras-Chave: |
Gamma-ray transmission. |
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Thesagro: |
Compactação do Solo; Raio Gama; Tomografia. |
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Thesaurus NAL: |
Computed tomography; Soil compaction. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01568naa a2200253 a 4500
001 2134549
005 2021-09-20
008 2002 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/S0969-8043(02)00098-2$2DOI
100 1 $aPIRES, L. F.
245 $aGamma-ray computed tomography to characterize soil surface sealing.$h[electronic resource]
260 $c2002
520 $aThe application of sewage sludge as a fertilizer on soils may cause compacted surface layers (surface sealing), which can promote changes on soil physical properties. The objective of this work was to study the use of gamma-ray computed tomography, as a diagnostic tool for the evaluation of this sealing process through the measurement of soil bulk density distribution of the soil surface layer of samples subjected to sewage sludge application. Tomographic images were taken with a first generation tomograph with a resolution of 1 mm. The image analysis opened the possibility to obtain soil bulk density profiles and average soil bulk densities of the surface layer and to detect the presence of soil surface sealing. The sealing crust thickness was estimated to be in the range of 2-4 mm.
650 $aComputed tomography
650 $aSoil compaction
650 $aCompactação do Solo
650 $aRaio Gama
650 $aTomografia
653 $aGamma-ray transmission
700 1 $aMACEDO, J. R. de
700 1 $aSOUZA, M. D. de
700 1 $aBACCHI, O. O. S.
700 1 $aREICHARDT, K.
773 $tApplied Radiation and Isotopes$gv. 57, n. 3, p. 375-380, Sept. 2002.
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