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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
17/10/2019 |
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Data da última atualização: |
17/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, N. G. N. dos; OLSZEVSKI, N.; SALVIANO, A. M.; CUNHA, T. J. F.; GIONGO, V.; PEREIRA, J. S. |
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Afiliação: |
NIELTON GONÇALO NUNES DOS SANTOS; NELCI OLSZEVSKI; ALESSANDRA MONTEIRO SALVIANO, CPATSA; TONY JARBAS FERREIRA CUNHA, CPATSA; VANDERLISE GIONGO, CPATSA; JANIELLE SOUZA PEREIRA. |
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Título: |
Granulometric fractions and physical-hydric behavior of sandy soils. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Revista Agrarian, v. 12, n. 45, p. 318-327, 2019. |
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ISSN: |
1984-2538 |
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DOI: |
10.30612/agrarian.v12i45.7687 |
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Idioma: |
Inglês |
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Conteúdo: |
Soils attributes such as granulometry and density determine the distribution of pore size and condition physical and differentiated hydraulic behavior. Thus, knowing the characteristics of the soils allow the use of more adequate management techniques that lead to the improvement of the performance of the use of this resource. The aim of this study was to evaluate the diameters of granulometric fractions and the physical-hydric behavior of sandy soils from semiarid region of Brazil. Trenches were excavated to collect, describe, and characterize the morphology of soil samples. The soil bulk density, particle density, granulometry, water retention curve, total porosity and pore size distribution were evaluated. The textural difference among soil studied is expressed with greater emphasis on the amount of macropores, high retention micropores and cryptopores. Fine and very fine sand are the most impacted granulometric fractions increasing macroporosity and reducing high tension microporosity and cryptoporosity. Luvisol with predominance of silt and clay fractions, presents a greater risk of densification and erosion, thus the use of lower irrigation levels is recommended. Acrisols and Luvisol, with predominance of fine and very fine sand fractions, present similar conditions of macroporosity and cryptopores with a low textural gradient. Acrisols and Luvisol do not present major problems regarding the reduction of hydraulic conductivity along the rofile. Lower irrigation levels with higher application frequency are suggested due to the low water retention capacity and higher risk nutrients leaching. MenosSoils attributes such as granulometry and density determine the distribution of pore size and condition physical and differentiated hydraulic behavior. Thus, knowing the characteristics of the soils allow the use of more adequate management techniques that lead to the improvement of the performance of the use of this resource. The aim of this study was to evaluate the diameters of granulometric fractions and the physical-hydric behavior of sandy soils from semiarid region of Brazil. Trenches were excavated to collect, describe, and characterize the morphology of soil samples. The soil bulk density, particle density, granulometry, water retention curve, total porosity and pore size distribution were evaluated. The textural difference among soil studied is expressed with greater emphasis on the amount of macropores, high retention micropores and cryptopores. Fine and very fine sand are the most impacted granulometric fractions increasing macroporosity and reducing high tension microporosity and cryptoporosity. Luvisol with predominance of silt and clay fractions, presents a greater risk of densification and erosion, thus the use of lower irrigation levels is recommended. Acrisols and Luvisol, with predominance of fine and very fine sand fractions, present similar conditions of macroporosity and cryptopores with a low textural gradient. Acrisols and Luvisol do not present major problems regarding the reduction of hydraulic conductivity along the rofile. Lower irrigation levels ... Mostrar Tudo |
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Palavras-Chave: |
Atributos físicos; Comportamento físico-hídrico; Dinâmica de água; Distribuição de poros; Frações granulométricas; Microporosidade; Semiarido. |
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Thesagro: |
Solo; Solo Arenoso. |
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Thesaurus Nal: |
Semiarid soils; Soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/202982/1/Granulometric-fractions-2019.pdf
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Marc: |
LEADER 02582naa a2200337 a 4500
001 2113186
005 2019-10-17
008 2019 bl uuuu u00u1 u #d
022 $a1984-2538
024 7 $a10.30612/agrarian.v12i45.7687$2DOI
100 1 $aSANTOS, N. G. N. dos
245 $aGranulometric fractions and physical-hydric behavior of sandy soils.$h[electronic resource]
260 $c2019
520 $aSoils attributes such as granulometry and density determine the distribution of pore size and condition physical and differentiated hydraulic behavior. Thus, knowing the characteristics of the soils allow the use of more adequate management techniques that lead to the improvement of the performance of the use of this resource. The aim of this study was to evaluate the diameters of granulometric fractions and the physical-hydric behavior of sandy soils from semiarid region of Brazil. Trenches were excavated to collect, describe, and characterize the morphology of soil samples. The soil bulk density, particle density, granulometry, water retention curve, total porosity and pore size distribution were evaluated. The textural difference among soil studied is expressed with greater emphasis on the amount of macropores, high retention micropores and cryptopores. Fine and very fine sand are the most impacted granulometric fractions increasing macroporosity and reducing high tension microporosity and cryptoporosity. Luvisol with predominance of silt and clay fractions, presents a greater risk of densification and erosion, thus the use of lower irrigation levels is recommended. Acrisols and Luvisol, with predominance of fine and very fine sand fractions, present similar conditions of macroporosity and cryptopores with a low textural gradient. Acrisols and Luvisol do not present major problems regarding the reduction of hydraulic conductivity along the rofile. Lower irrigation levels with higher application frequency are suggested due to the low water retention capacity and higher risk nutrients leaching.
650 $aSemiarid soils
650 $aSoil
650 $aSolo
650 $aSolo Arenoso
653 $aAtributos físicos
653 $aComportamento físico-hídrico
653 $aDinâmica de água
653 $aDistribuição de poros
653 $aFrações granulométricas
653 $aMicroporosidade
653 $aSemiarido
700 1 $aOLSZEVSKI, N.
700 1 $aSALVIANO, A. M.
700 1 $aCUNHA, T. J. F.
700 1 $aGIONGO, V.
700 1 $aPEREIRA, J. S.
773 $tRevista Agrarian$gv. 12, n. 45, p. 318-327, 2019.
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Embrapa Semiárido (CPATSA) |
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| 1. |  | SANTOS, N. G. N. dos; OLSZEVSKI, N.; SALVIANO, A. M.; CUNHA, T. J. F.; GIONGO, V.; PEREIRA, J. S. Granulometric fractions and physical-hydric behavior of sandy soils. Revista Agrarian, v. 12, n. 45, p. 318-327, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Semiárido. |
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