Phytomanagement of strongly acidic, saline eutrophic wetlands polluted by mine wastes: The influence of liming and Sarcocornia fruticosa on metals mobility

The aim of this study was to assess the effectiveness of combining liming and vegetation for the phyto management of strongly acidic, saline eutrophic wetlands polluted by mine wastes. Simulated soil pro files were constructed and four treatments were assayed: without liming + without plant, without liming + with plant, with liming + without plant and with liming + with plant. The plant species was the halophyte Sarcocornia fruticosa. Three horizons were differentiated: A (never under water), C1 (alter nating flooding–drying conditions) and C2 (always under water). The soluble Cd, Cu, Mn, Pb and Zn con centrations were measured regularly for 18 weeks and a sequential extraction procedure was applied at the end of the experiment. Liming was effective (between 70% and 100%) in reducing the soluble Zn, Cu and Pb. In contrast, soluble Mn and Cd increased with liming, especially in the treatment with lim ing + with plant, where the concentrations were 2-fold higher than in the non-limed treatments. The amendment increased the contents of Zn, Mn and Cd bound to potentially-mobilisable soil fractions at the expense of the most-environmentally-inert fractions. Hence, the combined use of liming and vegeta tion may increase the long-term environmental risk of metals solubilisation

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González Alcaraz M.N. Conesa H.M. y Álvarez Rogel J. Phytomanagement of strongly acidic saline eutrophic wetlands polluted by mine wastes: The influence of liming and Sarcocornia fruticosa on metals mobility. Elsevier B.V., 2012. https://doi.org/10.1016/j.chemosphere.2012.10.083

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Fecha de creación 05-11-2024
Fecha de última modificación 20-01-2025
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Identificador de los metadatos d9e29e5b-6415-52c3-a91d-51bba464443f
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Categoría del conjunto de alto valor (HVD) Observación de la Tierra y medio ambiente
Categoría temática ISO 19115 biota
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Nombre del autor González Alcaraz, M.N., Conesa, H.M. y Álvarez Rogel, J.
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Identificador alternativo DOI: 10.1016/j.chemosphere.2012.10.083
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Email del autor nazaret.gonzalez@upct.es
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