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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/06/2007 |
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Data da última atualização: |
26/05/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ARAÚJO, E. C. E.; PRADO, C. H. B. de A.; VELOSO, M. E. da C.; COSTA, E. M. S.; FREIRE, C. L.; NOVAES, P. |
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Título: |
Curso diário de parâmetros do estado hídrico do pinhão-manso (Jatropha curcas L.) no período chuvoso do município de Teresina, Piauí. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: CONGRESSO INTERNACIONAL DE AGROENERGIA E BIOCOMBUSTÍVEIS, 1., 2007, Teresina. Energia de resultados: palestras e resumos. Teresina: Embrapa Meio-Norte, 2007. |
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Descrição Física: |
1 CD-ROM. |
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Série: |
(Embrapa Meio-Norte. Documentos, 143). |
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Idioma: |
Português |
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Conteúdo: |
As mudanças climáticas globais, especialmente o aquecimento global oriundo da geração e emissão antrópica dos gases do efeito estufa, tem incentivado a substituição dos combustíveis fosseis por biocombustíveis como o biodiesel, mas sua produção nos volumes necessários dependera do aumento da oferta de óleos, exigindo do setor de ciência, tecnologia e inovação alternativas tecnológicas para a exploração de espécies vegetais oleaginosas de alta produtividade de óleo... |
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Thesagro: |
Clima; Pinhão de Purga; Planta Oleaginosa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/102602/1/136.pdf
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Marc: |
LEADER 01357nam a2200229 a 4500
001 1068711
005 2014-05-26
008 2007 bl uuuu u00u1 u #d
100 1 $aARAÚJO, E. C. E.
245 $aCurso diário de parâmetros do estado hídrico do pinhão-manso (Jatropha curcas L.) no período chuvoso do município de Teresina, Piauí.$h[electronic resource]
260 $aIn: CONGRESSO INTERNACIONAL DE AGROENERGIA E BIOCOMBUSTÍVEIS, 1., 2007, Teresina. Energia de resultados: palestras e resumos. Teresina: Embrapa Meio-Norte$c2007
300 $c1 CD-ROM.
490 $a(Embrapa Meio-Norte. Documentos, 143).
520 $aAs mudanças climáticas globais, especialmente o aquecimento global oriundo da geração e emissão antrópica dos gases do efeito estufa, tem incentivado a substituição dos combustíveis fosseis por biocombustíveis como o biodiesel, mas sua produção nos volumes necessários dependera do aumento da oferta de óleos, exigindo do setor de ciência, tecnologia e inovação alternativas tecnológicas para a exploração de espécies vegetais oleaginosas de alta produtividade de óleo...
650 $aClima
650 $aPinhão de Purga
650 $aPlanta Oleaginosa
700 1 $aPRADO, C. H. B. de A.
700 1 $aVELOSO, M. E. da C.
700 1 $aCOSTA, E. M. S.
700 1 $aFREIRE, C. L.
700 1 $aNOVAES, P.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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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: |
29/09/2021 |
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Data da última atualização: |
13/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BISPO, F. H. A.; MENEZES, M. D. de; FONTANA, A.; SARKIS, J. E. de S.; GONÇALVES, C. M.; CARVALHO, T. S. de; CURI, N.; GUILHERME, L. R. G. |
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Afiliação: |
FÁBIO HENRIQUE ALVES BISPO, UFLA; MICHELE DUARTE DE MENEZES, UFLA; ADEMIR FONTANA, CNPS; JORGE EDUARDO DE SOUZA SARKIS, IPEN; CRISTIANO MOREIRA GONÇALVES, UFLA; TEOTÔNIO SOARES DE CARVALHO, UFLA; NILTON CURI, UFLA; LUIZ ROBERTO GUIMARÃES GUILHERME, UFLA. |
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Título: |
Rare earth elements (REEs): geochemical patterns and contamination aspects in Brazilian benchmark soils. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Environmental Pollution, v. 289, 117972, Nov. 2021. |
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DOI: |
https://doi.org/10.1016/j.envpol.2021.117972 |
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Idioma: |
Inglês |
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Conteúdo: |
Rare earth elements have been increasingly used in modern societies and soils are likely to be the final destination of several REE-containing (by)products. This study reports REE contents for topsoils (0-20 cm) of 175 locations in reference (n = 68) and cultivated (n = 107) areas in Brazil. Benchmark soil samples were selected accomplishing a variety of environmental conditions, aiming to: i) establishing natural background and anthropogenic concentrations for REE in soils; ii) assessing potential contamination of soils - via application of phosphate fertilizers - with REE; and, iii) predicting soil-REE contents using biomes, soil type, parent material, land use, sand content, and biomes-land use interaction as forecaster variables through generalized least squares multiple regression. Our hypotheses were that the variability of soil-REE contents is influenced by parent material, pedogenic processes, land use, and biomes, as well as that cultivated soils may have been potentially contaminated with REE via input of phosphate fertilizers. The semi-total concentrations of REE were assessed by inductively coupled plasma mass spectrometry (ICP-MS) succeeding a microwave-assisted aqua regia digestion. Analytical procedures followed a rigorous QA/QC protocol. Soil physicochemical composition and total oxides were also determined. Natural background and anthropogenic concentrations for REE were established statistically from the dataset by the median plus two median absolute deviations method. Contamination aspects were assessed by REE-normalized patterns, REE fractionation indices, and Ce and Eu anomalies ratios, as well as enrichment factors. The results indicate that differences in the amounts of REE in cultivated soils can be attributed to land use and agricultural sources (e.g., phosphate-fertilizer inputs), while those in reference soils can be attributed to parent materials, biomes, and pedogenic processes. The biomes, land use, and sand content helped to predict concentrations of light REE in Brazilian soils, with parent material being also of special relevance to predict heavy REE contents in particular. MenosRare earth elements have been increasingly used in modern societies and soils are likely to be the final destination of several REE-containing (by)products. This study reports REE contents for topsoils (0-20 cm) of 175 locations in reference (n = 68) and cultivated (n = 107) areas in Brazil. Benchmark soil samples were selected accomplishing a variety of environmental conditions, aiming to: i) establishing natural background and anthropogenic concentrations for REE in soils; ii) assessing potential contamination of soils - via application of phosphate fertilizers - with REE; and, iii) predicting soil-REE contents using biomes, soil type, parent material, land use, sand content, and biomes-land use interaction as forecaster variables through generalized least squares multiple regression. Our hypotheses were that the variability of soil-REE contents is influenced by parent material, pedogenic processes, land use, and biomes, as well as that cultivated soils may have been potentially contaminated with REE via input of phosphate fertilizers. The semi-total concentrations of REE were assessed by inductively coupled plasma mass spectrometry (ICP-MS) succeeding a microwave-assisted aqua regia digestion. Analytical procedures followed a rigorous QA/QC protocol. Soil physicochemical composition and total oxides were also determined. Natural background and anthropogenic concentrations for REE were established statistically from the dataset by the median plus two median absolute deviat... Mostrar Tudo |
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Palavras-Chave: |
Anthropogenic sources; Emerging contaminants; Environmental geochemistry; Geochemical signatures; Lanthanides. |
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Thesagro: |
Geoquímica; Solo Tropical. |
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Thesaurus NAL: |
Tropical soils. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03116naa a2200313 a 4500
001 2134832
005 2021-10-13
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.envpol.2021.117972$2DOI
100 1 $aBISPO, F. H. A.
245 $aRare earth elements (REEs)$bgeochemical patterns and contamination aspects in Brazilian benchmark soils.$h[electronic resource]
260 $c2021
520 $aRare earth elements have been increasingly used in modern societies and soils are likely to be the final destination of several REE-containing (by)products. This study reports REE contents for topsoils (0-20 cm) of 175 locations in reference (n = 68) and cultivated (n = 107) areas in Brazil. Benchmark soil samples were selected accomplishing a variety of environmental conditions, aiming to: i) establishing natural background and anthropogenic concentrations for REE in soils; ii) assessing potential contamination of soils - via application of phosphate fertilizers - with REE; and, iii) predicting soil-REE contents using biomes, soil type, parent material, land use, sand content, and biomes-land use interaction as forecaster variables through generalized least squares multiple regression. Our hypotheses were that the variability of soil-REE contents is influenced by parent material, pedogenic processes, land use, and biomes, as well as that cultivated soils may have been potentially contaminated with REE via input of phosphate fertilizers. The semi-total concentrations of REE were assessed by inductively coupled plasma mass spectrometry (ICP-MS) succeeding a microwave-assisted aqua regia digestion. Analytical procedures followed a rigorous QA/QC protocol. Soil physicochemical composition and total oxides were also determined. Natural background and anthropogenic concentrations for REE were established statistically from the dataset by the median plus two median absolute deviations method. Contamination aspects were assessed by REE-normalized patterns, REE fractionation indices, and Ce and Eu anomalies ratios, as well as enrichment factors. The results indicate that differences in the amounts of REE in cultivated soils can be attributed to land use and agricultural sources (e.g., phosphate-fertilizer inputs), while those in reference soils can be attributed to parent materials, biomes, and pedogenic processes. The biomes, land use, and sand content helped to predict concentrations of light REE in Brazilian soils, with parent material being also of special relevance to predict heavy REE contents in particular.
650 $aTropical soils
650 $aGeoquímica
650 $aSolo Tropical
653 $aAnthropogenic sources
653 $aEmerging contaminants
653 $aEnvironmental geochemistry
653 $aGeochemical signatures
653 $aLanthanides
700 1 $aMENEZES, M. D. de
700 1 $aFONTANA, A.
700 1 $aSARKIS, J. E. de S.
700 1 $aGONÇALVES, C. M.
700 1 $aCARVALHO, T. S. de
700 1 $aCURI, N.
700 1 $aGUILHERME, L. R. G.
773 $tEnvironmental Pollution$gv. 289, 117972, Nov. 2021.
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