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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
11/12/2019 |
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Data da última atualização: |
11/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PARAHYBA, R. da B. V.; ARAÚJO, M. do S. B. de; ALMEIDA, B. G. de; ROLIM NETO, F. C.; SAMPAIO, E. V. S. B.; CALDAS, A. M. |
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Afiliação: |
ROBERTO DA BOA VIAGEM PARAHYBA, CNPS; MARIA DO SOCORRO B. DE ARAÚJO, UFPE; BRIVALDO G. DE ALMEIDA, UFRPE; FERNANDO C. ROLIM NETO, UFRPE; EVERARDO V. S. B. SAMPAIO, UFPE; ANILDO M. CALDAS, UFRPE. |
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Título: |
Water retention capacity in Arenosols and Ferralsols in a semiarid area in the state of Bahia, Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v. 91, n. 4, e20181031, 2019. |
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DOI: |
https://doi.org/10.1590/0001-3765201920181031 |
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Idioma: |
Inglês |
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Conteúdo: |
One of the most serious problems in areas indicated for irrigation projects in the Brazilian Northeast region is the occurrence of sandy soils, known to have low moisture retention, but occurring in strategic locations in terms of water supply and geographical situation, and which can be used for agricultural purposes. The objective of this study was to evaluate the influence of particle size distribution and porosity on the water retention capacity of sandy soils in the semiarid area of the Northeast region. Soil bulk and particle densities, total porosity (macro, meso and microporosity), field capacity, permanent wilting point and soil-water retention curve were determined in samples of surface (A) and subsurface (C or Bw) horizons of ten sandy soil profiles. Particle size was determined subdividing the sand fraction into five classes. Higher amounts of the medium and fine sand fractions of the studied soils oriented their physical and hydric characteristics, being responsible for their great water retention. The arrangement of the fine silt, clay, fine sand and very fine sand particles may have provided a diversity of pore sizes and a good pore distribution, being responsible for the large proportion of micropores in the soils, allowing great water retention capacities. |
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Palavras-Chave: |
Microporosidade. |
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Thesagro: |
Retenção de Água no Solo; Solo Arenoso. |
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Thesaurus Nal: |
Sandy soils; Soil water retention. |
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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/206736/1/Water-retention-capacity-in-Arenosols-and-Ferralsols-in-a-semiarid-area-2019.pdf
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Marc: |
LEADER 02134naa a2200253 a 4500
001 2116601
005 2021-11-11
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/0001-3765201920181031$2DOI
100 1 $aPARAHYBA, R. da B. V.
245 $aWater retention capacity in Arenosols and Ferralsols in a semiarid area in the state of Bahia, Brazil.$h[electronic resource]
260 $c2019
520 $aOne of the most serious problems in areas indicated for irrigation projects in the Brazilian Northeast region is the occurrence of sandy soils, known to have low moisture retention, but occurring in strategic locations in terms of water supply and geographical situation, and which can be used for agricultural purposes. The objective of this study was to evaluate the influence of particle size distribution and porosity on the water retention capacity of sandy soils in the semiarid area of the Northeast region. Soil bulk and particle densities, total porosity (macro, meso and microporosity), field capacity, permanent wilting point and soil-water retention curve were determined in samples of surface (A) and subsurface (C or Bw) horizons of ten sandy soil profiles. Particle size was determined subdividing the sand fraction into five classes. Higher amounts of the medium and fine sand fractions of the studied soils oriented their physical and hydric characteristics, being responsible for their great water retention. The arrangement of the fine silt, clay, fine sand and very fine sand particles may have provided a diversity of pore sizes and a good pore distribution, being responsible for the large proportion of micropores in the soils, allowing great water retention capacities.
650 $aSandy soils
650 $aSoil water retention
650 $aRetenção de Água no Solo
650 $aSolo Arenoso
653 $aMicroporosidade
700 1 $aARAÚJO, M. do S. B. de
700 1 $aALMEIDA, B. G. de
700 1 $aROLIM NETO, F. C.
700 1 $aSAMPAIO, E. V. S. B.
700 1 $aCALDAS, A. M.
773 $tAnais da Academia Brasileira de Ciências$gv. 91, n. 4, e20181031, 2019.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
18/03/2015 |
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Data da última atualização: |
07/07/2015 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CASTRO, V. L. S. S. de. |
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Afiliação: |
VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA. |
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Título: |
Avaliação dos efeitos tóxicos de nano-TIO2 em peixes. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: FÓRUM DE APRESENTAÇÃO DE RESULTADOS DE PESQUISA: AVANÇOS E OPORTUNIDADES, 1., 2014, Campinas. Anais... Jaguariúna: Embrapa Meio Ambiente, 2014. RE026. 6 p. |
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Idioma: |
Português |
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Palavras-Chave: |
Dióxido de titânio. |
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Thesagro: |
Peixe de água doce; Substância tóxica; Toxidez. |
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Thesaurus NAL: |
Ecotoxicology; Nanoparticles; Nanotechnology; Titanium dioxide. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/126316/1/2014AA87.pdf
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Marc: |
LEADER 00701nam a2200193 a 4500
001 2011717
005 2015-07-07
008 2014 bl uuuu u00u1 u #d
100 1 $aCASTRO, V. L. S. S. de
245 $aAvaliação dos efeitos tóxicos de nano-TIO2 em peixes.$h[electronic resource]
260 $aIn: FÓRUM DE APRESENTAÇÃO DE RESULTADOS DE PESQUISA: AVANÇOS E OPORTUNIDADES, 1., 2014, Campinas. Anais... Jaguariúna: Embrapa Meio Ambiente, 2014. RE026. 6 p.$c2014
650 $aEcotoxicology
650 $aNanoparticles
650 $aNanotechnology
650 $aTitanium dioxide
650 $aPeixe de água doce
650 $aSubstância tóxica
650 $aToxidez
653 $aDióxido de titânio
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Embrapa Meio Ambiente (CNPMA) |
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