Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin

White lupin (Lupinus albus L.) has been shown to be a useful plant species for phytoimmobilisation of heavy metal contaminated soils. However, since it is an annual species, the heavy metals taken up by the plant and stored in roots can be incorporated back into the soil during root degradation, aft...

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Detalles Bibliográficos
Autores: Martínez Alcalá, Isabel, Clemente, Rafael, Bernal, Pilar
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Universidad Católica San Antonio de Murcia (UCAM)
Repositorio:RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
OAI Identifier:oai:repositorio.ucam.edu:10952/7959
Acceso en línea:http://hdl.handle.net/10952/7959
Access Level:acceso abierto
Palabra clave:Lupinus albus
Rhizosphere
Root degradation
Phytoremediation
Soil metal pollution
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spelling Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupinMartínez Alcalá, IsabelClemente, RafaelBernal, PilarLupinus albusRhizosphereRoot degradationPhytoremediationSoil metal pollutionWhite lupin (Lupinus albus L.) has been shown to be a useful plant species for phytoimmobilisation of heavy metal contaminated soils. However, since it is an annual species, the heavy metals taken up by the plant and stored in roots can be incorporated back into the soil during root degradation, after plants have been harvested. In this work the efficiency of metal immobilisation by roots of white lupin has been studied in three metal polluted soils (calcareous, neutral and acid) after collection of the aerial part of the plants through an incubation experiment using the intact roots colonised soil. The pattern of C mineralisation in the soil allowed the estimation of the soil microbial activity and the degradation of the root tissues that remained in the soil. The proportion of root tissue degraded in soil was from 47% to 61%, the highest value being found in the calcareous soil. Heavy metal amounts released into the soil after root degradation were very low in comparison with the total soil metal concentration. Soluble metal concentrations in the calcareous and neutral soils were not affected by root degradation, and in the acid soil, soil conditions had a greater effect on heavy metals fractionation than root degradation. These results confirm the feasibility of the use of L. albus for metal phytoimmobilisation techniques.Ciencias Ambientales2012info:eu-repo/semantics/articlehttp://hdl.handle.net/10952/7959reponame:RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murciainstname:Universidad Católica San Antonio de Murcia (UCAM)Inglésinfo:eu-repo/semantics/openAccessoai:repositorio.ucam.edu:10952/79592026-06-07T18:35:21Z
dc.title.none.fl_str_mv Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
title Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
spellingShingle Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
Martínez Alcalá, Isabel
Lupinus albus
Rhizosphere
Root degradation
Phytoremediation
Soil metal pollution
title_short Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
title_full Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
title_fullStr Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
title_full_unstemmed Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
title_sort Efficiency of a phytoimmobilisation strategy for heavy metal contaminated soils using white lupin
dc.creator.none.fl_str_mv Martínez Alcalá, Isabel
Clemente, Rafael
Bernal, Pilar
author Martínez Alcalá, Isabel
author_facet Martínez Alcalá, Isabel
Clemente, Rafael
Bernal, Pilar
author_role author
author2 Clemente, Rafael
Bernal, Pilar
author2_role author
author
dc.subject.none.fl_str_mv Lupinus albus
Rhizosphere
Root degradation
Phytoremediation
Soil metal pollution
topic Lupinus albus
Rhizosphere
Root degradation
Phytoremediation
Soil metal pollution
description White lupin (Lupinus albus L.) has been shown to be a useful plant species for phytoimmobilisation of heavy metal contaminated soils. However, since it is an annual species, the heavy metals taken up by the plant and stored in roots can be incorporated back into the soil during root degradation, after plants have been harvested. In this work the efficiency of metal immobilisation by roots of white lupin has been studied in three metal polluted soils (calcareous, neutral and acid) after collection of the aerial part of the plants through an incubation experiment using the intact roots colonised soil. The pattern of C mineralisation in the soil allowed the estimation of the soil microbial activity and the degradation of the root tissues that remained in the soil. The proportion of root tissue degraded in soil was from 47% to 61%, the highest value being found in the calcareous soil. Heavy metal amounts released into the soil after root degradation were very low in comparison with the total soil metal concentration. Soluble metal concentrations in the calcareous and neutral soils were not affected by root degradation, and in the acid soil, soil conditions had a greater effect on heavy metals fractionation than root degradation. These results confirm the feasibility of the use of L. albus for metal phytoimmobilisation techniques.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10952/7959
url http://hdl.handle.net/10952/7959
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
instname:Universidad Católica San Antonio de Murcia (UCAM)
instname_str Universidad Católica San Antonio de Murcia (UCAM)
reponame_str RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
collection RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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