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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Cerrados. |
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Data corrente: |
24/04/2017 |
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Data da última atualização: |
26/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUCH, A. C.; SCHMELZ, R. M.; NIVA, C. C.; CORREIA, M. E. F.; SILVA FILHO, E. V. |
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Afiliação: |
ANDRESSA CRISTHY BUCHA, UFF; RÜDIGER M. SCHMELZ, ECT TOXICOLOGY, GERMAN; CINTIA CARLA NIVA, CPAC; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; EMMANOEL VIEIRA SILVA FILHO, UFF. |
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Título: |
Mercury critical concentrations to Enchytraeus crypticus (Annelida: Oligochaeta) under normal and extreme conditions of moisture in tropical soils: reproduction and survival. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Environmental Research, v. 165, p. 365-372, 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.envres.2017.03.005 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: Soil provides many ecosystem services that are essential to maintain its quality and healthy development of the flora, fauna and human well-being. Environmental mercury levels may harm the survival and diversity of the soil fauna. In this respect, efforts have been made to establish limit values of mercury (Hg) in soils to terrestrial fauna. Soil organisms such as arthworms and enchytraeids have intimate contact with trace metals in soil by their oral and dermal routes, reflecting the potentially adverse effects of this contaminant. The main goal of this study was to obtain Hg critical concentrations under normal and extreme conditions of moisture in tropical soils to Enchytraeus crypticus to order to assess if climate change may potentiate their acute and chronic toxicity effects. Tropical soils were sampled from of two Forest Conservation Units of the Rio de Janeiro State ? Brazil, which has been contaminated by Hg atmospheric depositions. Worms were exposed to three moisture conditions, at 20%, 50% and 80% of water holding capacity, respectively, and in combination with different Hg (HgCl2) concentrations spiked in three types of tropical soil (two natural soils and one artificial soil). The tested concentrations ranged from 0 to 512 mg Hg kg−1 dry weight. Results indicate that the Hg toxicity is higher under increased conditions of moisture, significantly affecting survival and reproduction rate. |
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Palavras-Chave: |
Ecotoxicity; Enchytraeids; Environmental contamination; Soil mesofauna; Trace metals. |
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Thesagro: |
Contaminação; Ecologia Florestal; Fertilidade do Solo; Intoxicação Vegetal; Mercúrio; Toxidez. |
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Thesaurus Nal: |
forest soils. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02483naa a2200325 a 4500
001 2078209
005 2017-10-26
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.envres.2017.03.005$2DOI
100 1 $aBUCH, A. C.
245 $aMercury critical concentrations to Enchytraeus crypticus (Annelida$bOligochaeta) under normal and extreme conditions of moisture in tropical soils: reproduction and survival.$h[electronic resource]
260 $c2017
520 $aABSTRACT: Soil provides many ecosystem services that are essential to maintain its quality and healthy development of the flora, fauna and human well-being. Environmental mercury levels may harm the survival and diversity of the soil fauna. In this respect, efforts have been made to establish limit values of mercury (Hg) in soils to terrestrial fauna. Soil organisms such as arthworms and enchytraeids have intimate contact with trace metals in soil by their oral and dermal routes, reflecting the potentially adverse effects of this contaminant. The main goal of this study was to obtain Hg critical concentrations under normal and extreme conditions of moisture in tropical soils to Enchytraeus crypticus to order to assess if climate change may potentiate their acute and chronic toxicity effects. Tropical soils were sampled from of two Forest Conservation Units of the Rio de Janeiro State ? Brazil, which has been contaminated by Hg atmospheric depositions. Worms were exposed to three moisture conditions, at 20%, 50% and 80% of water holding capacity, respectively, and in combination with different Hg (HgCl2) concentrations spiked in three types of tropical soil (two natural soils and one artificial soil). The tested concentrations ranged from 0 to 512 mg Hg kg−1 dry weight. Results indicate that the Hg toxicity is higher under increased conditions of moisture, significantly affecting survival and reproduction rate.
650 $aforest soils
650 $aContaminação
650 $aEcologia Florestal
650 $aFertilidade do Solo
650 $aIntoxicação Vegetal
650 $aMercúrio
650 $aToxidez
653 $aEcotoxicity
653 $aEnchytraeids
653 $aEnvironmental contamination
653 $aSoil mesofauna
653 $aTrace metals
700 1 $aSCHMELZ, R. M.
700 1 $aNIVA, C. C.
700 1 $aCORREIA, M. E. F.
700 1 $aSILVA FILHO, E. V.
773 $tEnvironmental Research$gv. 165, p. 365-372, 2017.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
Volume |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
08/07/2019 |
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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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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA, G. A. da; CAMÊLO, D. de L.; CORRÊA, M. M.; SOUZA JÚNIOR, V. S. de; RIBEIRO FILHO, M. R.; ARAUJO FILHO, J. C. de. |
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Afiliação: |
GIVANILDO ALVES DA SILVA, UFRPE; DANILO DE LIMA CAMÊLO, UFES; MARCELO METRI CORRÊA, UFRPE; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE; MATEUS ROSAS RIBEIRO FILHO, UFRPE; JOSE COELHO DE ARAUJO FILHO, CNPS. |
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Título: |
Pedogenesis on coastal tablelands area with low range altimetry in Paraíba state. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Revista Caatinga, v. 32, n. 2, p. 458-471, abr./jun. 2019. |
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DOI: |
https://doi.org/10.1590/1983-21252019v32n219rc |
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Idioma: |
Inglês |
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Conteúdo: |
Small variations of relief may change drainage and runoff and hence promote the formation of sandy surface horizons and hardened subsurface horizons (fragipans and/or duripans) in Coastal Tablelands soils. This study aimed to investigate the pedogenesis on Coastal Tablelands area with low range altimetry in Paraíba state; secondly, we also sought to contribute to the improvement of the Brazilian Soil Classification System (BSCS). Four soil profiles ware described and collected to be submitted to routine physical and chemical analysis, determination of Fe, Al and Si extracted by sulfuric acid digestion, sodium citrate-bicarbonate-dithionite and acid ammonium oxalate, sodium pyrophosphate, and mineralogical analysis in the sand and clay fractions by X-ray diffractometry. Optical density of the oxalate extract (ODOE) was also determined; the results were statistically evaluated using the R software. Microrelief variations conditioning differentiated water flows, along with the sandy texture of the surface horizons (A and E) and the lower coarse sand/fine sand ratio in the subsurface horizon, seem to promote clay accumulation in depth in the Spodosols developed on Coastal Tablelands environments. For this soils, the argilluvic (argissólico) character at the subgroup level of the BSCS should be incorporated. In addition, Al amorphous mineral phases and/or poorly crystalline play an important role in the formation of strongly cemented horizons (duripans) of the Spodosols, as also reported by other authors. Finally, the ODOE showed to be an efficient indicator of soils under podzolization process, being possible its use as a taxonomic criterion for classification of Spodosols by the BSCS. MenosSmall variations of relief may change drainage and runoff and hence promote the formation of sandy surface horizons and hardened subsurface horizons (fragipans and/or duripans) in Coastal Tablelands soils. This study aimed to investigate the pedogenesis on Coastal Tablelands area with low range altimetry in Paraíba state; secondly, we also sought to contribute to the improvement of the Brazilian Soil Classification System (BSCS). Four soil profiles ware described and collected to be submitted to routine physical and chemical analysis, determination of Fe, Al and Si extracted by sulfuric acid digestion, sodium citrate-bicarbonate-dithionite and acid ammonium oxalate, sodium pyrophosphate, and mineralogical analysis in the sand and clay fractions by X-ray diffractometry. Optical density of the oxalate extract (ODOE) was also determined; the results were statistically evaluated using the R software. Microrelief variations conditioning differentiated water flows, along with the sandy texture of the surface horizons (A and E) and the lower coarse sand/fine sand ratio in the subsurface horizon, seem to promote clay accumulation in depth in the Spodosols developed on Coastal Tablelands environments. For this soils, the argilluvic (argissólico) character at the subgroup level of the BSCS should be incorporated. In addition, Al amorphous mineral phases and/or poorly crystalline play an important role in the formation of strongly cemented horizons (duripans) of the Spodosols, as also ... Mostrar Tudo |
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Thesagro: |
Horizonte; Podzólico. |
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Thesaurus NAL: |
Formica podzolica; Kaolinite; Soil horizons. |
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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/199268/1/2019-025.pdf
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Marc: |
LEADER 02493naa a2200253 a 4500
001 2110454
005 2021-11-11
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/1983-21252019v32n219rc$2DOI
100 1 $aSILVA, G. A. da
245 $aPedogenesis on coastal tablelands area with low range altimetry in Paraíba state.$h[electronic resource]
260 $c2019
520 $aSmall variations of relief may change drainage and runoff and hence promote the formation of sandy surface horizons and hardened subsurface horizons (fragipans and/or duripans) in Coastal Tablelands soils. This study aimed to investigate the pedogenesis on Coastal Tablelands area with low range altimetry in Paraíba state; secondly, we also sought to contribute to the improvement of the Brazilian Soil Classification System (BSCS). Four soil profiles ware described and collected to be submitted to routine physical and chemical analysis, determination of Fe, Al and Si extracted by sulfuric acid digestion, sodium citrate-bicarbonate-dithionite and acid ammonium oxalate, sodium pyrophosphate, and mineralogical analysis in the sand and clay fractions by X-ray diffractometry. Optical density of the oxalate extract (ODOE) was also determined; the results were statistically evaluated using the R software. Microrelief variations conditioning differentiated water flows, along with the sandy texture of the surface horizons (A and E) and the lower coarse sand/fine sand ratio in the subsurface horizon, seem to promote clay accumulation in depth in the Spodosols developed on Coastal Tablelands environments. For this soils, the argilluvic (argissólico) character at the subgroup level of the BSCS should be incorporated. In addition, Al amorphous mineral phases and/or poorly crystalline play an important role in the formation of strongly cemented horizons (duripans) of the Spodosols, as also reported by other authors. Finally, the ODOE showed to be an efficient indicator of soils under podzolization process, being possible its use as a taxonomic criterion for classification of Spodosols by the BSCS.
650 $aFormica podzolica
650 $aKaolinite
650 $aSoil horizons
650 $aHorizonte
650 $aPodzólico
700 1 $aCAMÊLO, D. de L.
700 1 $aCORRÊA, M. M.
700 1 $aSOUZA JÚNIOR, V. S. de
700 1 $aRIBEIRO FILHO, M. R.
700 1 $aARAUJO FILHO, J. C. de
773 $tRevista Caatinga$gv. 32, n. 2, p. 458-471, abr./jun. 2019.
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