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| Registros recuperados : 54 | |
| Registros recuperados : 54 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
30/11/2012 |
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Data da última atualização: |
31/07/2017 |
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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: |
NIEMEYER, J. C.; NOGUEIRA, M. A.; CARVALHO, G. M.; COHIN-DE-PINHO, S .J.; OUTEIRO, U. S.; RODRIGUES, G. G.; SILVA, E. M. da; SOUSA, J. P. |
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Afiliação: |
JÚLIA CARINA NIEMEYER, Universidade Federal da Bahia; MARCO ANTONIO NOGUEIRA, CNPSO; State University of Santa Cruz; Universidade Federal da Bahia; Universidade Federal da Bahia; UFPE; Universidade Federal da Bahia; University of Coimbra. |
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Título: |
Functional and structural parameters to assess the ecological status of a metal contaminated area in the tropics. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Ecotoxicology and Environmental Safety, v. 86, p. 188-197, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Ecological parameters (soil invertebrates, microbial activity, and plant community) were assessed in a metal contaminated site in an abandoned lead smelter and non-contaminated reference sites, as part of an ecological risk assessment (ERA). Vegetation cover inside the smelter area was lower and presented a more homogenous species composition than outside. A more simplified and less abundant vegetation community within the smelter area also simplified the habitat conditions, which in addition to metal toxicity, impaired the soil microbial and faunal communities. A significant reduction in the feeding activity was observed within the smelter area. Also a significant change in community composition of surface dwelling invertebrates was observed at those sites when compared to sites outside the smelter area. Moreover, basal respiration, microbial biomass C, dehydrogenase and phosphatase activity also decreased in several of these points under the smelter area. As a result, a significant impairment of organic material decomposition in the most contaminated sites was observed. Metal contamination affected the ecological status of the site, leading to a risk for ecosystem functioning and provisioning of ecosystem services like organic matter decomposition and nutrient cycling, even 17 years after the end of smelting activities. Regarding the sensitivity of the ecological parameters assessed, most were able to distinguish sites within the smelter area boundaries from those outside. However, only bait lamina (feeding activity), basal respiration and microbial biomass carbon presented high capacity to distinguish the level of soil contamination, since they were significantly correlated with metal loadings, and thus are promising candidates to be integrated in the Ecological Line of Evidence of an ERA. MenosEcological parameters (soil invertebrates, microbial activity, and plant community) were assessed in a metal contaminated site in an abandoned lead smelter and non-contaminated reference sites, as part of an ecological risk assessment (ERA). Vegetation cover inside the smelter area was lower and presented a more homogenous species composition than outside. A more simplified and less abundant vegetation community within the smelter area also simplified the habitat conditions, which in addition to metal toxicity, impaired the soil microbial and faunal communities. A significant reduction in the feeding activity was observed within the smelter area. Also a significant change in community composition of surface dwelling invertebrates was observed at those sites when compared to sites outside the smelter area. Moreover, basal respiration, microbial biomass C, dehydrogenase and phosphatase activity also decreased in several of these points under the smelter area. As a result, a significant impairment of organic material decomposition in the most contaminated sites was observed. Metal contamination affected the ecological status of the site, leading to a risk for ecosystem functioning and provisioning of ecosystem services like organic matter decomposition and nutrient cycling, even 17 years after the end of smelting activities. Regarding the sensitivity of the ecological parameters assessed, most were able to distinguish sites within the smelter area ... Mostrar Tudo |
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Thesagro: |
Vegetação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02540naa a2200217 a 4500
001 1940883
005 2017-07-31
008 2012 bl uuuu u00u1 u #d
100 1 $aNIEMEYER, J. C.
245 $aFunctional and structural parameters to assess the ecological status of a metal contaminated area in the tropics.$h[electronic resource]
260 $c2012
520 $aEcological parameters (soil invertebrates, microbial activity, and plant community) were assessed in a metal contaminated site in an abandoned lead smelter and non-contaminated reference sites, as part of an ecological risk assessment (ERA). Vegetation cover inside the smelter area was lower and presented a more homogenous species composition than outside. A more simplified and less abundant vegetation community within the smelter area also simplified the habitat conditions, which in addition to metal toxicity, impaired the soil microbial and faunal communities. A significant reduction in the feeding activity was observed within the smelter area. Also a significant change in community composition of surface dwelling invertebrates was observed at those sites when compared to sites outside the smelter area. Moreover, basal respiration, microbial biomass C, dehydrogenase and phosphatase activity also decreased in several of these points under the smelter area. As a result, a significant impairment of organic material decomposition in the most contaminated sites was observed. Metal contamination affected the ecological status of the site, leading to a risk for ecosystem functioning and provisioning of ecosystem services like organic matter decomposition and nutrient cycling, even 17 years after the end of smelting activities. Regarding the sensitivity of the ecological parameters assessed, most were able to distinguish sites within the smelter area boundaries from those outside. However, only bait lamina (feeding activity), basal respiration and microbial biomass carbon presented high capacity to distinguish the level of soil contamination, since they were significantly correlated with metal loadings, and thus are promising candidates to be integrated in the Ecological Line of Evidence of an ERA.
650 $aVegetação
700 1 $aNOGUEIRA, M. A.
700 1 $aCARVALHO, G. M.
700 1 $aCOHIN-DE-PINHO, S .J.
700 1 $aOUTEIRO, U. S.
700 1 $aRODRIGUES, G. G.
700 1 $aSILVA, E. M. da
700 1 $aSOUSA, J. P.
773 $tEcotoxicology and Environmental Safety$gv. 86, p. 188-197, 2012.
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