Evaluation of the ability of Nerium oleander L. to remediate Pb-contaminated soils

Trigueros, D.; Mingorance, M.D.; Oliva, Sabina Rossini

doi:10.1016/j.gexplo.2012.01.005

Cited by 34 publications

(17 citation statements)

References 46 publications

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“…3 also shows statistically significant negative correlations between total Cd, Zn and Pb concentrations and most of the mycorrhizal parameters (F%, M%, m% and a%). However, research data indicates that the link between total metal concentrations in soil and their toxic effect on plants and mycorrhizal fungi is considerably less distinct than the concentrations of bioavailable metal forms [48][49][50][51]. Thus the main reason for the low value of F%, A%, M% and m% found at the depth of 0-20 cm might be the high concentration of bioavailable Cd and Zn, which was observed in this soil layer (Tab.…”

Section: Discussionmentioning

confidence: 94%

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

et al. 2013

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This study presents root colonization of Deschampsia cespitosa growing in the immediate vicinity of a former Pb/Zn smelter by arbuscular mycorhizal fungi (AMF) and dark septated endophytes (DSE) at different soil depths. AMF spores and species distribution in soil profile were also assessed. Arbuscular mycorrhiza (AM) and DSE were found in D. cespitosa roots at all investigated soil levels. However, mycorrhizal colonization in topsoil was extremely low with sporadically occurring arbuscules. AM parameters: frequency of mycorrhization of root fragments (F%), intensity of root cortex colonization (M%), intensity of colonization within individual mycorrhizal roots (m%), and arbuscule abundance in the root system (A%) were markedly higher at 20–40, 40–60 cm soil levels and differed in a statistically significant manner from AM parameters from 0–10 and 10–20 cm layers. Mycorrhizal colonization was negatively correlated with bioavailable Cd, Pb and Zn concentrations. The number of AMF spores in topsoil was very low and increased with soil depth (20–40 and 40–60 cm). At the study area spores of three morphologically distinctive AMF species were found: Archaeospora trappei, Funneliformis mosseae and Scutellospora dipurpurescens. The fourth species Glomus tenue colonized roots of D. cespitosa and was observed in the root cortex at 20–40 and 40–60 soil depth, however, its spores were not found at the site.

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Section: Discussionmentioning

confidence: 94%

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

et al. 2013

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“…Xinmu No.2 is a potential phytostabilization plant for Cd, Pb, Cu, Zn and As. Similarly, a number of studies showed that most of heavy metals were accumulated in roots of a variety of plant species that grew in various types of mine tailings or heavy metals polluted soils(Abreu et al 2012; Bech et al 2012; Galende et al 2014; Salazar and Pignata 2014;Trigueros et al 2012;Wanat et al 2013).…”

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confidence: 99%

Physiological responses and accumulation of heavy metals and arsenic of Medicago sativa L. growing on acidic copper mine tailings in arid lands

Chen

Wang

Mou

et al. 2015

Journal of Geochemical Exploration

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“…Por lo tanto, la selección de plantas es un requisito previo para la revegetación exitosa. La mayoría de los estudios han informado la aptitud de especies herbáceas para la fitoestabilización de suelos mineros contaminados (por ejemplo, de Ye et al, 1999;Arnetoli et al, 2008;Boojar y Tavakkoli, 2011;Kabas et al, 2012), existiendo menos estudios sobre la evaluación de la eficiencia en fitoestabilización de las especies leñosas (Yanqun et al, 2004;Domínguez et al, 2008;Shi et al, 2011;Tapia et al, 2011;Trigueros et al, 2012). En comparación con especies herbáceas, las especies leñosas constituyen la mayor biomasa vegetal en matorrales mediterráneos autóctonos (Domínguez et al, 2008 (Smith y Bradshaw, 1979;Tordoff et al, 2000).…”

Section: Legislación Ambiental Aplicableunclassified

“…Así mismo, se aumentó el éxito de la supervivencia de plántulas, principalmente para P. lentiscus.En el ensayo realizado para las tres especies leñosas, se constató que el crecimiento de las plantas no estuvo limitado por las condiciones del suelo del depósito minero, a excepción de P. lentiscus, lo que indica el alto grado de tolerancia al estrés del suelo del depósito minero de N. Oleander y C. albidus, al mantener una biomasa similar a los suelos enmendados y de control. Por el contrario,Trigueros et al, (2012), observaron que la exposición de Pb afectó negativamente el crecimiento de la N. Oleander en un experimento hidropónico. No obstante, esto puede ser debido a una mayor…”

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“…demostraron, que en tejidos de N. oleander que crecen en laboratorio sobre sustrato de suelo contaminado, las concentraciones de Pb eran más altas que las que se muestran en nuestro estudio, probablemente debido a la alta disponibilidad de metales pesados en la solución del suelo Franco et al, (2012). yTrigueros et al, (2012) reportaron, en suelos afectados por drenaje ácido de mina, las concentraciones de metales pesados en N. Oleander fueron similares a los encontrados en este estudio, concluyendo que esta especie tiene un comportamiento excluidor de estos elementos. De la Fuente et al, (2010) informaron de la acumulación de metales pesados en 97 especies presentes en un área afectada por el drenaje ácido de minas, incluyendo la N. oleander, C. albidus y P. lentiscus.…”

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Methodology for landscape evaluation and environmental rehabilitation of mining areas using aid decision models

Torres¹

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A reclamation and a cultural strategy were developed in abandoned tailing ponds. The first objective was to identify species for phytostabilization purposes in order to create a new native vegetation cover able to immobilize and retain metals and reduce erosion. For these reasons four native plants were identified near the tailing ponds in the Avenque stream, Osyris lanceolata, Lavandula dentata, Pistacea lentiscus and Chamaerops humilis and accumulation of trace elements in root, stem or shoot were investigated. Metal concentrations were very variable. In general, in O. lanceolata and C. humilis, metal levels were highest in the roots, whereas in L. dentata and P. lentiscus, highest metal levels were in shoots. Therefore, the use of O. lanceolata and C. humilis in phytostabilization can contribute to metal-immobilization and prevent them from becoming available for biota. Besides, a greenhouse pot experiment was conducted to evaluate the potential use of six native species Nerium oleander L., Cistus albidus L., Pistacia lentiscus L., Lavandula dentata L., Rosmarinus officinalis L. and Thymus vulgaris L. for phytostabilization of acidic mine soils. The selected plants were grown in mine tailing soil, unamended (TS) and amended with calcium carbonate and pig manure (ATS), and in a reference unpolluted substrate for control (CT); plant growth, root characterization, soil trace elements contents, and their accumulation in plants were measured. Results indicate the application of amendment reduced the soil exchangeable and extractable fraction concentrations of trace elements in ATS compared with TS, mainly for As, Cd and Pb. The tested species directly contributed to the immobilization of trace elements in the soil. Although, all the species accumulate metals, levels were below toxicity thresholds. Thus, these species fulfil the criteria to be used for phytostabilization purposes, aided by application of amendments. Once tested, the selected native vegetation with potential phytostabilization ability was planted in one of the tailing ponds. The second objective was to reduce risks related to heavy metal mobility and increase fertility. Thus, marble waste and pig slurry were applied to the surface of the tailing pond. As a result, pH increased until neutrality, and the bioavailable metal fraction significantly reduced, increasing the levels of nutrients and organic matter. The third objective was to give the tailing pond a new recreational and educational use. For this purpose a network of itineraries, viewpoints, access areas and a museum area were created to allow the visitor to observe the reclamation of a degraded mining area. In this context, guidelines for action, and a methodology that can be employed for the regeneration of any area with similar characteristics were established. For this reason the landscaping project of the two abandoned tailing ponds is accompanied by a Decision Aid Model which will serve as a benchmark for future mine rehabilitation projects.

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Evaluation of the ability of Nerium oleander L. to remediate Pb-contaminated soils

Cited by 34 publications

References 46 publications

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

Physiological responses and accumulation of heavy metals and arsenic of Medicago sativa L. growing on acidic copper mine tailings in arid lands

Methodology for landscape evaluation and environmental rehabilitation of mining areas using aid decision models

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