Cistus salviifolius a promising species for mine wastes remediation

Metal mining in Caveira and São Domingos (Portugal) generated large volumes of tailings with high total concentrations of trace elements, low pH and fertility. Autochthones plants growing spontaneously in mine areas are usually tolerant to unfavorable characteristics of tailings. The aim of this inv...

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Bibliographic Details
Published in:Journal of geochemical exploration 2012-02, Vol.113, p.86-93
Main Authors: Abreu, M.M., Santos, E.S., Ferreira, M., Magalhães, M.C.F.
Format: Article
Language:English
Subjects:
Aerials
Antimony
Arsenic
Caveira abandoned mine
Cistus
Iron and steel plants
Mine soils, phytostabilization
MINE WASTES
POLLUTION
Populations
SOILS
São Domingos abandoned mine
Trace elements
Trace elements contamination
Zinc
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Summary:Metal mining in Caveira and São Domingos (Portugal) generated large volumes of tailings with high total concentrations of trace elements, low pH and fertility. Autochthones plants growing spontaneously in mine areas are usually tolerant to unfavorable characteristics of tailings. The aim of this investigation was to analyze the behavior (trace elements uptake, accumulation and translocation from roots to shoots) of different populations of Cistus salviifolius plants growing spontaneously in contaminated and non-contaminated sites in order to evaluate the potential of this plant species for soils and mine wastes phytostabilization. Cistus salviifolius plants (roots and aerial parts) and soils were collected, in two mine areas (São Domingos and Caveira) and a reference area (Grândola), and were analyzed for arsenic, antimony, copper, lead, manganese and zinc concentrations. Cistus salviifolius showed tolerance for moderate acid soils (5.34
ISSN:0375-6742
1879-1689
DOI:10.1016/j.gexplo.2011.03.007