Concentration of essential and toxic elements as a function of the depth of the soil and the presence of fulvic acids in a wetland in Cerrado, Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorLuko-Sulato, Karen [UNESP]-
Autor(es): dc.creatorRosa, Vinicius Atilio [UNESP]-
Autor(es): dc.creatorFurlan, Lucas Moreira [UNESP]-
Autor(es): dc.creatorRosolen, Vania [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:45:56Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:56Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10661-021-08945-y-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206015-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206015-
Descrição: dc.descriptionThe protection of wetlands is essential for sustainable development. The particular hydrology of wetlands creates conditions for the formation of hydric soils. Hydric soils are formed in oxide-reducing environments and perform important removal and re-oxidation of Fe and Mn oxides and hydroxides. They are also characterized by the formation of a superficial horizon enriched by the accumulation of organic matter. The objective of this study was to determine the concentration of essential (Co, Cu, Fe, Mn, Ni, Zn) and toxic (Al, Cd, Pb) elements in the soil solution in a wetland, surrounded by an intense agricultural activity area. The concentrations of the elements were evaluated according to the level of hydromorphy (border to the center) and the depth of the soil. The physical fractionation of these elements was also assessed (total and < 30 kDa), and the results were compared with the chemical speciation of these elements. Despite the high total concentrations of Al and Fe, the concentration of these elements was very low in the < 30 kDa fraction, which suggests that these elements are complexed with organic matter, in the form of hydroxides. Evidence of removal of Fe and Mn from the surface horizon was observed at the center of the wetland, where the highest level of hydromorphy is found. The results showed that the concentration of metals in the fraction < 30 kDa is insignificant, suggesting that the mechanisms of precipitation and/or adsorption to soil colloids play an important role in the regulation of this ecosystem.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionGeosciences and Exact Sciences Institute São Paulo State University (UNESP), 24-A Avenue, 1515, Bela Vista-
Descrição: dc.descriptionGeosciences and Exact Sciences Institute São Paulo State University (UNESP), 24-A Avenue, 1515, Bela Vista-
Descrição: dc.descriptionFAPESP: 2017/14168-1-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Monitoring and Assessment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectChemical speciation-
Palavras-chave: dc.subjectHydric soil-
Palavras-chave: dc.subjectSoil–water chemistry-
Palavras-chave: dc.subjectTropical wetland-
Palavras-chave: dc.subjectVisual minteq-
Título: dc.titleConcentration of essential and toxic elements as a function of the depth of the soil and the presence of fulvic acids in a wetland in Cerrado, Brazil-
Tipo de arquivo: dc.typelivro digital-
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