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Descripción
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| Mine soils usually contain high levels of metal contamination and poor fertility conditions which limit their restoration and the establishment of vegetation. In this work, we reported our previous results of the use of organic amendments (horse and sheep manure compost and pine bark compost) and metal-tolerant plants (Atriplex halimus, Brassica juncea, and Thlaspi arvense) for the phytoremediation of mine soils. Greenhouse and laboratory experiments were performed with soil samples collected from two abandoned mine sites of Central Spain mixed with 0, 30, and 60 t ha?1 of the organic amendments to evaluate the growth, tolerance, metal accumulation, and translocation of these plants in relation to metal bioavailability and soil conditions affected by the organic amendments. Our results showed that manure reduced metal availability and improved soil fertility due to its high pH, organic matter nature, and nutrient contents, stabilizing metals in soil and allowing a higher plant growth and even a greater amount of metals removed from soils and accumulated in plant tissues, which enhance the phytoremediation capacity of these plants. A. halimus and B. juncea achieved high biomass production and metal accumulation without being severely affected by metal toxicity, but their capacity was insufficient for the phytoextraction of metals in the short to medium term in these soils. However, the use of both species could be a useful and cost-effective practice for the phytostabilization of mine soils in combination with manure amendments. | |
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Internacional
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Si |
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DOI
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10.1007/978-3-319-10395-2_22 |
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Edición del Libro
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1 |
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Editorial del Libro
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Springuer Link |
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ISBN
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978-3-319-10394-5 |
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Serie
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Título del Libro
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Phytoremediation: Management of Environmental Contaminants, Volume 1. Part IV |
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Desde página
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309 |
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Hasta página
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321 |