Limitations to Use of Cassia grandis L. in the Revegetation of the Areas Impacted with Mining Tailings from Fundão Dam

Matos, Letícia Paiva de; Andrade, Heloísa Monteiro de; Marinato, Claudio Sergio; Prado, Isabelle Gonçalves de Oliveira; Coelho, Daniel Gomes; Montoya, Sebastián Giraldo; Kasuya, Maria Catarina Megumi; Oliveira, José Tarcísio da Silva

doi:10.1007/s11270-020-04479-0

Cited by 13 publications

(3 citation statements)

References 38 publications

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“…As a consequence of this type of disturbance, Jordão et al (2021) reported that the soil in these areas became more compacted, which hinders plant development. This condition can cause structural deformation of the root systems as was also observed in studies conducted in the same area (Correa et al 2019;Matos et al 2020;Jordão et al 2021) and in other degraded soil approaches (Hartmann et al 2014;Batista et al 2020;Xie & van Zyl 2020). Furthermore, in analyzing the local vegetation downstream of the Fundão Dam rupture in affected and unaffected areas, contamination by toxic elements such as Pb, Cd, and As was not observed (Coelho et al 2020).…”

Section: Discussionmentioning

confidence: 82%

“…The research carried out after Fundão Dam rupture provides evidence that the deposition of iron ore mining waste damaged the soil, negatively affected the biotic composition, ecosystem functions of the soil, and the biogeochemical cycling of nutrients (Segura et al 2016; Prado et al 2019; Batista et al 2020; Jordão et al 2021). The revegetation process was the initial path of restoration and a good strategy for improving the conditions of impacted areas, of which, even before the dam collapse, had already suffered from erosion, due to grazing and a lack of vegetation cover (IBAMA 2015; Samarco Mineração S.A. 2016; Prado et al 2019; Matos et al 2020; Jordão et al 2021). To assess whether improvements are occurring in the environment, different strategies can be used, involving chemical and physical attributes of the soil, composition and vegetation cover, and soil microbiological data including the AMF community (Jordão et al 2021).…”

Section: Discussionmentioning

confidence: 99%

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Total and arbuscular mycorrhizal fungal communities in the first 3 years after the collapse of the Fundão Dam: are we on the ecosystem recovery pathway?

Prado

Veloso

Luz

et al. 2023

Restoration Ecology

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After the collapse of Fundão Dam in Mariana‐MG, Brazil, the discharge of iron ore mining waste into the Doce River watershed negatively impacted the landscape. Monitoring the composition and species richness of soil microbiota may be useful bioindicators of ecosystem recovery. This study aimed to compare soil chemical properties, total fungal species, and arbuscular mycorrhizal fungi (AMF) in sites unaffected and affected by mining tailings in the first 3 years after the collapse of Fundão Dam. Soil and root samples were collected in dry and rainy seasons over 3 years in unaffected (adjacent forest and pasture) and affected areas (REC1, REC2, and PASTrec) by mine tailings. Changes in soil chemical properties over the sampling period were measured by routine chemical analyses. Total fungi in the soil was determined by high‐throughput sequencing. AMF community was evaluated using spore number, root colonization, and denaturing gradient gel electrophoresis. Affected sites had higher ranges of pH and lower soil organic matter than unaffected sites. Revegetation had a positive effect on soil fungal community. Increased similarity in AMF DGGE analysis was observed in the two sampling sites over time. A high similarity of total fungi and AMF was observed between REC and pasture areas, suggesting that revegetation strategy employed may be heading towards a pasture condition. Thus, post‐disturbance analysis of this study was important to evaluate of ecosystem recovery affected by the rupture of iron ore mining dam and demonstrated that the soil microbiota was a sensitive bioindicator in this long path of ecosystem recovery.

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Total and arbuscular mycorrhizal fungal communities in the first 3 years after the collapse of the Fundão Dam: are we on the ecosystem recovery pathway?

Prado

Veloso

Luz

et al. 2023

Restoration Ecology

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“…The high concentration of Zn in tailings may also contribute to the decrease in chlorophyll, and although Zn is an essential cofactor for enzymes involved in carbohydrate metabolism and other physiological processes [ 45 ], Zn is detrimental at high levels because Zn can displace the Mg cofactor in chlorophyll, thereby disrupting photosynthesis, limiting growth, and causing plants to fade to green [ 26 ]. For gas exchange parameters, it has been shown that the significant decrease in the net photosynthetic rate of plants under heavy metal stress is related to stomatal restriction [ 46 , 47 , 48 ]. We found that Atriplex centralasiatic and Chenopodium glaucum showed a significant decrease in Pn along with a decrease in Gs and E after treatment, and, under heavy metal stress, Ci values also showed significant decreases; these results suggest that the heavy metal stress-induced Pn reduction in Atriplex centralasiatic and Chenopodium glaucum may be related to stomatal restriction, and the results of Saradadevi et al in their study on wheat support this speculation [ 49 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China

Gao

Wang

et al. 2022

IJERPH

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The physiological mechanisms and phytoremediation effects of three kinds of native quinoa in a desert mining area were studied. We used two different types of local soils (native soil and tailing soil) to analyze the changes in the heavy metal content, leaf physiology, photosynthetic parameters, stem hydraulics, and anatomical characteristics of potted quinoa. The results show that the chlorophyll content, photosynthetic rate, stomatal conductance, and transpiration rate of Kochia scoparia were decreased, but intercellular CO2 concentration (Ci) was increased under heavy metal stress, and the net photosynthetic rate (Pn) was decreased due to non-stomatal limitation. The gas exchange of Chenopodium glaucum and Atriplex centralasiatica showed a decrease in Pn, stomatal conductance (Gs), and transpiration rate (E) due to stomatal limitation. The three species showed a similar change in heavy metal content; they all showed elevated hydraulic parameters, decreased vessel density, and significantly thickened vessel walls under heavy metal stress. Physiological indicators such as proline content and activity of superoxide dismutase (SOD) and peroxidase (POD) increased, but the content of malondialdehyde (MDA) and glutathione (GSH), as well as catalase (CAT) activity, decreased in these three plants. Therefore, it can be concluded that these three species of quinoa, possibly the most dominant 30 desert plants in the region, showed a good adaptability and accumulation capacity under the pressure of heavy metal stress, and these plants can be good candidates for tailings remediation in the Jinchang desert mining area.

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

Silva

Guimarães

Lopez

et al. 2021

Environ Monit Assess

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Limitations to Use of Cassia grandis L. in the Revegetation of the Areas Impacted with Mining Tailings from Fundão Dam

Cited by 13 publications

References 38 publications

Total and arbuscular mycorrhizal fungal communities in the first 3 years after the collapse of the Fundão Dam: are we on the ecosystem recovery pathway?

Total and arbuscular mycorrhizal fungal communities in the first 3 years after the collapse of the Fundão Dam: are we on the ecosystem recovery pathway?

Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China

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

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