Samuel Lourenço L. Silva's research while affiliated with Federal University of Minas Gerais and other places

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Publications (4)

Rehabilitation of eroded trails and gullies on quartzite rock outcrops with native species in a high-altitude grassland
Article
  • Jan 2023
The quartzite rock outcrops and the native vegetation of grasslands located at the Serra da Calçada Mountain in Minas Gerais State (Brazil) have been severely degraded by extreme sports activities such as motocross and off-road vehicles, greatly damaging the abundant headwaters. The main consequences thereof were hilly and gully erosion processes w...
Figure 1. Disturbed site before transplantation (A), experimental site...
Figure 2. Survival index (A) and height growth (B) of plants cultivated...
Remediation of a Riparian Site in the Brazilian Atlantic Forest Reached by Contaminated Tailings from the Collapsed Fundão Dam with Native Woody Species
Article
Full-text available
  • Mar 2020
The failure of the Fundão dam in Brazil spilled alkaline contaminated sediments (pH~ 8) into the Doce River basin. The contaminated sediments had high levels of ether amine (6 mg/kg) and sodium (54 mg/kg) in relation to those in preserved sites. In the present study, a riparian forest was established over contaminated sediment using two main remedi...

Citations

... These toxic compounds affect the plant survival (Halliwell et al., 2001;Britto and Kronzucker, 2002) as observed in the field after the disaster (Santos et al., 2019). By contrast, the metal levels found in the dam tailings were not considered toxic to plants since similar levels were found in the preserved Atlantic Forest soils Santos et al., 2019;Scotti et al., 2020) as well as in the soils found in the region before the disaster (Santolin et al., 2015). ...
Reference: Post-disaster recovery plan for a rural settler's community affected by the Fundão dam tailings in Brazil
... Metals in the sediments were registered at the same levels as preserved sites not affected by the dam tailings [2] and the regional background, both before [6] and after [7] the disaster. Despite the great impact of these contaminants over such a vast area [2], [8], [9] were able to establish a pioneer remediation model to reduce the ether-amine and sodium in a riparian area affected by contaminated sediment by using phyto-and physical-chemical co-strategies. These strategies were able to remediate and reclaim the affected site. ...
Reference: Rehabilitation Proposal for a Rural Settlement Affected By the Fundão Dam Tailings (Mariana-Brazil): A Study Case