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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
22/06/2001 |
Data da última atualização: |
11/03/2020 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
FANTE JUNIOR, L.; OLIVEIRA, J. C. M.; BASSOI, L. H.; VAZ, C. M. P.; MACEDO, A.; BACCHI, O. O. S.; REICHARDT, K. |
Afiliação: |
LUIS HENRIQUE BASSOI, CPATSA. |
Título: |
Evaluation of a soil compaction as concerned to land use. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: CRUVINEL, P. E.; COLNAGO, L. A. (Ed.). Advances in agricultural tomography. Sao Carlos: Embrapa Agricultural Instrumentation, 2000. |
Páginas: |
p. 125-130. |
Idioma: |
Inglês |
Notas: |
Trabalho apresentado no Workshop on Agricultural tomography, 1999, Sao Carlos. |
Conteúdo: |
The main objectives of this paper were (1) to determine soil bulk density of undisturbed samples, using both conventional and computed tomography (C.T.) techniques to identify soil compaction processes and (2) to compare the two methodologies. Soil samples were collected in a semi-arid region of Petrolina, PE, Brazil, along the soil profile, in O.1 m steps down to 1 m depth, at two sites: 1. Soil under natural vegetation "caatinga", and 2. Cultivated soil irrigated by central pivot. Soil C.T. scanning was performed with a first generation C.T. scanner and the conventional method was the gravimetric method (mass and volume measurement of the sealed clods). Results suggest that there is a natural soil compaction in deeper layers, and for the pivot irrigated area, the presence of man induced compacted layer, between 0 and 0.4 m. The comparison of the methods presented soil buk density values of satisfactory coincidence. |
Palavras-Chave: |
Avaliacao; Compactacao; Compaction; Evaluation. |
Thesagro: |
Solo; Tomografia; Uso da Terra. |
Thesaurus Nal: |
land use; soil; tomography. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 01915naa a2200337 a 4500 001 1134219 005 2020-03-11 008 2000 bl uuuu u00u1 u #d 100 1 $aFANTE JUNIOR, L. 245 $aEvaluation of a soil compaction as concerned to land use. 260 $c2000 300 $ap. 125-130. 500 $aTrabalho apresentado no Workshop on Agricultural tomography, 1999, Sao Carlos. 520 $aThe main objectives of this paper were (1) to determine soil bulk density of undisturbed samples, using both conventional and computed tomography (C.T.) techniques to identify soil compaction processes and (2) to compare the two methodologies. Soil samples were collected in a semi-arid region of Petrolina, PE, Brazil, along the soil profile, in O.1 m steps down to 1 m depth, at two sites: 1. Soil under natural vegetation "caatinga", and 2. Cultivated soil irrigated by central pivot. Soil C.T. scanning was performed with a first generation C.T. scanner and the conventional method was the gravimetric method (mass and volume measurement of the sealed clods). Results suggest that there is a natural soil compaction in deeper layers, and for the pivot irrigated area, the presence of man induced compacted layer, between 0 and 0.4 m. The comparison of the methods presented soil buk density values of satisfactory coincidence. 650 $aland use 650 $asoil 650 $atomography 650 $aSolo 650 $aTomografia 650 $aUso da Terra 653 $aAvaliacao 653 $aCompactacao 653 $aCompaction 653 $aEvaluation 700 1 $aOLIVEIRA, J. C. M. 700 1 $aBASSOI, L. H. 700 1 $aVAZ, C. M. P. 700 1 $aMACEDO, A. 700 1 $aBACCHI, O. O. S. 700 1 $aREICHARDT, K. 773 $tIn: CRUVINEL, P. E.; COLNAGO, L. A. (Ed.). Advances in agricultural tomography. Sao Carlos: Embrapa Agricultural Instrumentation, 2000.
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