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Phytostabilization of semiarid soils residually contaminated with trace elements using by-products: sustainability and risks

AuthorsPérez de Mora, Alfredo ; Madejón, Paula ; Burgos, Pilar ; Cabrera, Francisco ; Lepp, N. W.; Madejón, Engracia
Issue Date2011
PublisherPergamon Press
CitationEnvironmental Pollution 159(10): 3018- 3027 (2011)
AbstractWe investigated the efficiency of various by-products (sugarbeet lime, biosolid compost and leonardite), based on single or repeated applications to field plots, on the establishment of a vegetation cover compatible with a stabilization strategy on a multi-element (As, Cd, Cu, Pb and Zn) contaminated soil 4-6 years after initial amendment applications. Results indicate that the need for re-treatment is amendment- and element-dependent; in some cases, a single application may reduce trace element concentrations in above-ground biomass and enhance the establishment of a healthy vegetation cover. Amendment performance as evaluated by % cover, biomass and number of colonizing taxa differs; however, changes in plant community composition are not necessarily amendment-specific. Although the translocation of trace elements to the plant biotic compartment is greater in re-vegetated areas, overall loss of trace elements due to soil erosion and plant uptake is usually smaller compared to that in bare soil.
Identifiersdoi: 10.1016/j.envpol.2011.04.015
issn: 0269-7491
e-issn: 1873-6424
Appears in Collections:(IRNAS) Artículos
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