Chemical, physical, and biological attributes in soils affected by deposition of iron ore tailings from the Fundão Dam failure

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSilva, Aline Oliveira-
Autor(es): dc.creatorGuimarães, Amanda Azarias-
Autor(es): dc.creatorLopez, Bruna Daniela Ortiz-
Autor(es): dc.creatorZanchi, Carin Sgobi-
Autor(es): dc.creatorVega, Cesar Florentino Puma-
Autor(es): dc.creatorBatista, Éder Rodrigues-
Autor(es): dc.creatorMoreira, Fatima Maria de Souza-
Autor(es): dc.creatorSouza, Flávia Romam da Costa-
Autor(es): dc.creatorPinto, Flávio Araújo-
Autor(es): dc.creatorSantos, Jessé Valentim dos-
Autor(es): dc.creatorCarneiro, Joana Junqueira-
Autor(es): dc.creatorSiqueira, José Oswaldo-
Autor(es): dc.creatorKemmelmeier, Karl-
Autor(es): dc.creatorGuilherme, Luiz Roberto Guimarães-
Autor(es): dc.creatorRufini, Márcia-
Autor(es): dc.creatorDias Junior, Moacir de Souza-
Autor(es): dc.creatorAragão, Osnar Obede da Silva-
Autor(es): dc.creatorBorges, Pedro Henrique de Castro-
Autor(es): dc.creatorOliveira‑Longatti, Silvia Maria de-
Autor(es): dc.creatorCarneiro, Marco Aurélio Carbone-
Data de aceite: dc.date.accessioned2026-02-09T11:17:18Z-
Data de disponibilização: dc.date.available2026-02-09T11:17:18Z-
Data de envio: dc.date.issued2022-06-08-
Data de envio: dc.date.issued2022-06-08-
Data de envio: dc.date.issued2021-07-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/50138-
Fonte completa do material: dc.identifierhttps://doi.org/10.1007/s10661-021-09234-4-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1137651-
Descrição: dc.descriptionMonitoring degraded areas is essential for evaluation of the quality of the rehabilitation process. In this study, we evaluate how the physical and chemical characteristics of the mixture of iron ore tailings with the soil have affected the soil microbial biomass and activity in areas along the Gualaxo do Norte River after the Fundão Dam disaster. Composite soil samples were collected from areas that were impacted (I) and not impacted (NI) by the tailings. The following attributes were evaluated: chemical element content; soil density, porosity, and texture; microbial biomass carbon; basal respiration; and enzyme activity and density of microbial groups (bacteria, actinobacteria, fungi, arbuscular mycorrhizae, phosphate solubilizers, cellulolytic microorganisms, nitrifiers, ammonifiers, and diazotrophs). According to result, the deposition of tailings increased the pH and the soil available P, Cr, Fe, and Mn content and reduced organic matter. The physical and biological attributes were negatively affected, with increases in the silt content and density of the soil, and reduction in macroporosity and in the microbial biomass and activity of the soil (respiration and enzymes) in the impacted area. However, the impacted areas exhibited greater densities of some microbial groups (cellulolytic microorganisms, nitrifiers, and diazotrophic bacteria). Modifications in the organic matter and silt content are the main attributes associated with deposition of the tailings that affected soil microbial biomass and microbial activity. This may affect erosive conditions and the functionality of the ecosystem, indicating an imbalance in this environment. In contrast, the higher density of some microbial groups in the impacted areas show the high rehabilitation potential of these areas.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer Nature-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceEnvironmental Monitoring and Assessment-
Palavras-chave: dc.subjectGualaxo do Norte-
Palavras-chave: dc.subjectFunctional groups-
Palavras-chave: dc.subjectRehabilitation-
Palavras-chave: dc.subjectSoil porosity-
Palavras-chave: dc.subjectRompimento da Barragem de Fundão-
Palavras-chave: dc.subjectRejeitos de mineração-
Palavras-chave: dc.subjectSolo - Porosidade-
Título: dc.titleChemical, physical, and biological attributes in soils affected by deposition of iron ore tailings from the Fundão Dam failure-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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