Copper accumulation and changes in soil physical–chemical properties promoted by native plants in ​​an abandoned mine site in northeastern Brazil: Implications for restoration of mine sites

In this study, the copper-accumulating capacity of plants growing spontaneously in copper-contaminated soils in an ​​abandoned mine site in northeastern Brazil was evaluated by calculating enrichment (EF) and translocation (TF) factors. The effects of physical and chemical changes in the rhizosphere...

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Bibliographic Details
Published in:Ecological engineering 2015-09, Vol.82, p.103-111
Main Authors: Perlatti, Fabio, Ferreira, Tiago Osório, Romero, Ricardo Espíndola, Costa, Mirian Cristina Gomes, Otero, Xosé Luis
Format: Article
Language:English
Subjects:
Abandoned mines
Balancing
Bidens pilosa
Bioavailability
Brazil
Combretum
Copper
Cu contaminated soils
Hyperaccumulation
Mathematical analysis
Mining
Phytoremediation
Pityrogramma calomelanos
Plants (organisms)
Restoration
Rhizosphere
Ruellia
Soil (material)
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Summary:In this study, the copper-accumulating capacity of plants growing spontaneously in copper-contaminated soils in an ​​abandoned mine site in northeastern Brazil was evaluated by calculating enrichment (EF) and translocation (TF) factors. The effects of physical and chemical changes in the rhizosphere soil on copper mobility were determined by using different compounds (Mehlich3/MgCl2) to extract Cu from different types of soil samples (bulk/rhizosphere soil). Finally, the possible implications for the use of these plant species in restoring the area were assessed by calculating the balance between the Cu mobilized in the rhizosphere and the Cu absorbed by the plants. On the basis of the EF and TF values obtained (all
ISSN:0925-8574
1872-6992
DOI:10.1016/j.ecoleng.2015.04.085