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dc.creatorBatista, Éder Rodrigues-
dc.creatorFranco, Aline de Jesus-
dc.creatorSilva, Ana Paula Valadares da-
dc.creatorSilva, Jessyca Adriana Gomes Florêncio da-
dc.creatorTavares, Davi Santos-
dc.creatorSouza, Josemara Karina de-
dc.creatorSilva, Aline Oliveira-
dc.creatorBarbosa, Marisângela Viana-
dc.creatorSantos, Jessé Valentim dos-
dc.creatorCarneiro, Marco Aurélio Carbone-
dc.date.accessioned2022-06-30T22:23:36Z-
dc.date.available2022-06-30T22:23:36Z-
dc.date.issued2022-01-
dc.identifier.citationBATISTA, E. R. et al. Organic substrate availability and enzyme activity affect microbial-controlled carbon dynamics in areas disturbed by a mining dam failure. Applied Soil Ecology, [S.I.], v. 169, 104169, Jan. 2022. DOI: https://doi.org/10.1016/j.apsoil.2021.104169.pt_BR
dc.identifier.urihttps://doi.org/10.1016/j.apsoil.2021.104169pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/50425-
dc.description.abstractWe investigated key ecophysiological traits of microbial communities across different disturbance levels for two upper horizon depths (A1: 0–3 cm and A2: 10–13 cm) in areas disturbed by Fundão dam failure across Gualaxo do Norte river. We found that lower microbial growth (microbial biomass) and higher microbial-C losses (high qCO2) were linked to both decreases in organic substrate availability and enzyme activity suggesting important feedbacks on C dynamics in areas disturbed by Fundão dam failure. Basal respiration was not affected by organic substrate availability but increased with enzyme activity at A2 suggesting an enzymatic compensation in response to a lower plant-derived input. Lower degradative activity of extracellular enzymes (expressed as GMean index) was linked to lower organic matter content in mine tailings. Our results suggest that changes in organic substrate availability reflect changes in the microbial-controlled C dynamics in mine tailings. Thus, the design of restorative strategies based on microbial traits has the potential to accelerate the rehabilitation in areas disturbed by Fundão dam failure.pt_BR
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceApplied Soil Ecologypt_BR
dc.subjectMicrobial activitypt_BR
dc.subjectMicrobial growthpt_BR
dc.subjectEnzyme activitypt_BR
dc.subjectCarbon cyclept_BR
dc.subjectEcosystem functioningpt_BR
dc.subjectMine tailingspt_BR
dc.subjectAtividade microbianapt_BR
dc.subjectCrescimento microbianopt_BR
dc.subjectAtividade enzimáticapt_BR
dc.subjectCiclo do carbonopt_BR
dc.subjectEcossistema - Funcionamentopt_BR
dc.subjectRejeitos de mineraçãopt_BR
dc.titleOrganic substrate availability and enzyme activity affect microbial-controlled carbon dynamics in areas disturbed by a mining dam failurept_BR
dc.typeArtigopt_BR
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