Environmental drivers of shifts on microbial traits in sites disturbed by a large-scale tailing dam collapse

Batista, Éder Rodrigues; Carneiro, Joana Junqueira; Pinto, Flávio Araújo; Santos, Jessé Valentim dos; Carneiro, Marco Aurélio Carbone

doi:10.1016/j.scitotenv.2020.139453

Cited by 40 publications

(10 citation statements)

References 60 publications

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“…Another important aspect is the physical condition of both the mud and tailings, due to the high levels of silt (95%) and sand (55%) respectively (Tab. 1), also reported in other studies (Carmo et al, 2017;Batista et al, 2020), and that reduces the total porosity of the soil, especially the macropores, limiting the aeration of the soil and consequently the Tab. 3 Biochemical attributes of soils, cultivated with Urochloa decumbens, impacted by the deposition of iron mining mud and tailings, and a non-impacted soil, in a greenhouse experiment.…”

Section: Discussionsupporting

confidence: 68%

“…MBC* (µg C/g dry soil) microbial activities performed by aerobic microorganisms (Pupin et al, 2009;Nawaz et al, 2013). Limitations in the enzymatic activities of the soil directly affect the cycling and the availability of carbon and nutrients for the plants and consequently can compromise the long-term restoration of impacted ecosystems (Batista et al, 2020). The mining mud negatively affected glomalin concentrations (Tab.…”

Section: Treatmentsmentioning

confidence: 99%

“…Consequently, ~1500 hectares of riparian forests and agricultural areas were impacted by deposition or displacement of the tailings mud. The most impacted section corresponds to the first 80 km of the Basin, on the banks of the Gualaxo do Norte River, which had partial or total changes in its physical, chemical, and biological soil properties (Davila et al, 2020;Segura et al, 2016;Garcia et al, 2017;Hatje et al, 2017;Pires et al, 2017;Zago et al, 2019;Batista et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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biochemical attributes and establishment of tree seedlings in soil after urochloa decumbens cultivation in soil with deposition of iron mining residues

Ribeiro

Silva

Batista

et al. 2021

CERNE

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Section: Discussionsupporting

confidence: 68%

Section: Treatmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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biochemical attributes and establishment of tree seedlings in soil after urochloa decumbens cultivation in soil with deposition of iron mining residues

Ribeiro

Silva

Batista

et al. 2021

CERNE

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“…The correlation between soil microorganisms and soil enzymes has received increasing attention from scholars [18]. Studies have shown that the environmental factors of soil, such as altitude, pH, organic matter, total nitrogen, alkali-hydrolyzable nitrogen, available potassium, and available phosphorus content, were related to the composition and diversity of the soil microbial communities [19], which also affect the soil enzyme activity [20]. Each soil enzyme and environmental factor has a different correlation to the rhizosphere soil microbial community of S. chamaejasme.…”

Section: Introductionmentioning

confidence: 99%

Effects of Allelochemicals, Soil Enzyme Activities, and Environmental Factors on Rhizosphere Soil Microbial Community of Stellera chamaejasme L. along a Growth-Coverage Gradient

et al. 2022

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Allelochemicals released from the root of Stellera chamaejasme L. into rhizosphere soil are an important factor for its invasion of natural grasslands. The aim of this study is to explore the interactions among allelochemicals, soil physicochemical properties, soil enzyme activities, and the rhizosphere soil microbial communities of S. chamaejasme along a growth-coverage gradient. High-throughput sequencing was used to determine the microbial composition of the rhizosphere soil sample, and high-performance liquid chromatography was used to detect allelopathic substances. The main fungal phyla in the rhizosphere soil with a growth coverage of 0% was Basidiomycetes, and the other sample plots were Ascomycetes. Proteobacteria and Acidobacteria were the dominant bacterial phyla in all sites. RDA analysis showed that neochamaejasmin B, chamaechromone, and dihydrodaphnetin B were positively correlated with Ascomycota and Glomeromycota and negatively correlated with Basidiomycota. Neochamaejasmin B and chamaechromone were positively correlated with Proteobacteria and Actinobacteria and negatively correlated with Acidobacteria and Planctomycetes. Allelochemicals, soil physicochemical properties, and enzyme activity affected the composition and diversity of the rhizosphere soil microbial community to some extent. When the growth coverage of S. chamaejasme reached the primary stage, it had the greatest impact on soil physicochemical properties and enzyme activities.

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“…This accident caused 60,000 m 3 of mining tailings disclosing and 3 million m 3 of wastewater releasing, leading to 70 kilometers of river pollution and serious economic loss. A number of other tailings dam accidents have occurred in different countries (Batista et al 2020) . According to statistics (Yi et al 2020), the accumulated of tailings were about 207 billion tons in China, of which the total amount of tailings produced in 2018 was about 12.11 billion tons.…”

Section: Introductionmentioning

confidence: 99%

Highly active Fenton-like catalyst derived from solid waste-iron ore tailings using wheat straw pyrolysis

Gao

Wang

et al. 2022

Environ Sci Pollut Res

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The pollutants degradation rate of iron ore tailings-based heterogeneous catalysts is the main factor limiting its application. Herein, an iron ore tailings-based Fenton-like catalyst(I/W(3:1)-900-60) with relative fast catalysis rate was constructed by co-pyrolysis(900 ℃, 60min holding time) of iron ore tailings and wheat straw with mass ratio of 3:1. With wheat straw blending, the generated I/W(3:1)-900-60 presented a larger surface area(24.3 m 2 /g), smaller pore size(3.707 nm), reduced iron species (Fe 2+ from magnetic) and a higher catalytic activity(0.0229 min -1 ) than I-900-60 (1.196 m 2 /g, 12.935 nm, 0.012 min -1 ) pyrolyzed using a single iron ore tailings under the same pyrolysis conditions. In addition, biochar and iron ore tailings in I/W(3:1)-900-60 were tightly combined through chemical bonding. The optimal catalyst remains active after three cycles, indicating its catalytic stability and recyclability. The good Fenton-like MB degradation efficiency of I/W(3:1)-900-60 was ascribed to the sacrificial role of biochar, as well as the electron transfer between biochar and iron active sites or the 2 redox cycles of ≡Fe 3+ /Fe 2+ . This finding provides a facile construction strategy for a highly active iron ore tailings-based Fenton-like catalyst, and thereby had a great potential application in wastewater treatment.

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Environmental drivers of shifts on microbial traits in sites disturbed by a large-scale tailing dam collapse

Cited by 40 publications

References 60 publications

biochemical attributes and establishment of tree seedlings in soil after urochloa decumbens cultivation in soil with deposition of iron mining residues

biochemical attributes and establishment of tree seedlings in soil after urochloa decumbens cultivation in soil with deposition of iron mining residues

Effects of Allelochemicals, Soil Enzyme Activities, and Environmental Factors on Rhizosphere Soil Microbial Community of Stellera chamaejasme L. along a Growth-Coverage Gradient

Highly active Fenton-like catalyst derived from solid waste-iron ore tailings using wheat straw pyrolysis

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