Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/2652 |
Resumo: | Fractionation of Rare Earth Elements (REE) and the accumulation and translocation indexes were measured and determined in the native vegetation [Halimium lasianthum (Lam.) Spach subsp. alyssoides (Lam.) Greuter; Cytisus multiflorus (L’Hér.) Sweet; and Cistus monspeliensis L.; Cistus ladanifer subsp. ladanifer; Lavandula stoechas L.] from the iron mining area of Moncorvo (NE Portugal). There is no correlation between the amounts of REE in rhizosphere and in plants. The REE concentration as the fractionation follows roots>leaves>stems in plants. A slightly enrichment in HREE were found in rhizosphere and plants (roots and stems), whereas the leaves are enriched in LREE. The accumulation and translocation depend of internal complexes ligands. The redox and pH conditions of the rhizosphere conditioned the REE uptake. Greatest bioaccumulation ability of heavy REE (HREE) was found in C. monspeliensis, followed by H. lasianthum that also, has a high capacity of the REE translocation to the aerial parts, contrary to C. monspeliensis. An M-type tetrad effect was determined mainly for HREE (Gd-Ho series) indicating a complexation of REE. The greatest differences in the REE fractionation patterns (mainly for HREE) are observed in stems, as a consequence of the transport function of this organ. Cerium anomaly indicates that the pH and redox conditions affected the uptake of Ce by plants, where the free ionic species are dominated in roots and leaves (positive anomaly), and stems (negative anomaly). Also the Eu-anomaly is greater in roots and leaves than in steams probably by participation in metabolic functions due to similarity with calcium. |
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Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE PortugalElementos rarosTerras rarasVegetaçãoMinas de ferro de Moncorvo (Torre de Moncorvo, Portugal)Portugal (Nordeste)Fractionation of Rare Earth Elements (REE) and the accumulation and translocation indexes were measured and determined in the native vegetation [Halimium lasianthum (Lam.) Spach subsp. alyssoides (Lam.) Greuter; Cytisus multiflorus (L’Hér.) Sweet; and Cistus monspeliensis L.; Cistus ladanifer subsp. ladanifer; Lavandula stoechas L.] from the iron mining area of Moncorvo (NE Portugal). There is no correlation between the amounts of REE in rhizosphere and in plants. The REE concentration as the fractionation follows roots>leaves>stems in plants. A slightly enrichment in HREE were found in rhizosphere and plants (roots and stems), whereas the leaves are enriched in LREE. The accumulation and translocation depend of internal complexes ligands. The redox and pH conditions of the rhizosphere conditioned the REE uptake. Greatest bioaccumulation ability of heavy REE (HREE) was found in C. monspeliensis, followed by H. lasianthum that also, has a high capacity of the REE translocation to the aerial parts, contrary to C. monspeliensis. An M-type tetrad effect was determined mainly for HREE (Gd-Ho series) indicating a complexation of REE. The greatest differences in the REE fractionation patterns (mainly for HREE) are observed in stems, as a consequence of the transport function of this organ. Cerium anomaly indicates that the pH and redox conditions affected the uptake of Ce by plants, where the free ionic species are dominated in roots and leaves (positive anomaly), and stems (negative anomaly). Also the Eu-anomaly is greater in roots and leaves than in steams probably by participation in metabolic functions due to similarity with calcium.Repositório do LNEGDurães, NunoSilva, Eduardo Ferreira daBobos, IuliuÁvila, Paula Freire2015-03-21T20:02:34Z2014-01-01T00:00:00Z2014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2652engDurães, Nuno; Silva, Eduardo Ferreira da; Bobos, Iuliu; Ávila, Paula - Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal. In: Procedia Earth and Planetary Science, Vol. 10 (2014), p. 376-3821878-5220http://dx.doi.org/10.1016/j.proeps.2014.08.064info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:27:48Zoai:repositorio.lneg.pt:10400.9/2652Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:37.648930Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
title |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
spellingShingle |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal Durães, Nuno Elementos raros Terras raras Vegetação Minas de ferro de Moncorvo (Torre de Moncorvo, Portugal) Portugal (Nordeste) |
title_short |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
title_full |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
title_fullStr |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
title_full_unstemmed |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
title_sort |
Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal |
author |
Durães, Nuno |
author_facet |
Durães, Nuno Silva, Eduardo Ferreira da Bobos, Iuliu Ávila, Paula Freire |
author_role |
author |
author2 |
Silva, Eduardo Ferreira da Bobos, Iuliu Ávila, Paula Freire |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Durães, Nuno Silva, Eduardo Ferreira da Bobos, Iuliu Ávila, Paula Freire |
dc.subject.por.fl_str_mv |
Elementos raros Terras raras Vegetação Minas de ferro de Moncorvo (Torre de Moncorvo, Portugal) Portugal (Nordeste) |
topic |
Elementos raros Terras raras Vegetação Minas de ferro de Moncorvo (Torre de Moncorvo, Portugal) Portugal (Nordeste) |
description |
Fractionation of Rare Earth Elements (REE) and the accumulation and translocation indexes were measured and determined in the native vegetation [Halimium lasianthum (Lam.) Spach subsp. alyssoides (Lam.) Greuter; Cytisus multiflorus (L’Hér.) Sweet; and Cistus monspeliensis L.; Cistus ladanifer subsp. ladanifer; Lavandula stoechas L.] from the iron mining area of Moncorvo (NE Portugal). There is no correlation between the amounts of REE in rhizosphere and in plants. The REE concentration as the fractionation follows roots>leaves>stems in plants. A slightly enrichment in HREE were found in rhizosphere and plants (roots and stems), whereas the leaves are enriched in LREE. The accumulation and translocation depend of internal complexes ligands. The redox and pH conditions of the rhizosphere conditioned the REE uptake. Greatest bioaccumulation ability of heavy REE (HREE) was found in C. monspeliensis, followed by H. lasianthum that also, has a high capacity of the REE translocation to the aerial parts, contrary to C. monspeliensis. An M-type tetrad effect was determined mainly for HREE (Gd-Ho series) indicating a complexation of REE. The greatest differences in the REE fractionation patterns (mainly for HREE) are observed in stems, as a consequence of the transport function of this organ. Cerium anomaly indicates that the pH and redox conditions affected the uptake of Ce by plants, where the free ionic species are dominated in roots and leaves (positive anomaly), and stems (negative anomaly). Also the Eu-anomaly is greater in roots and leaves than in steams probably by participation in metabolic functions due to similarity with calcium. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01T00:00:00Z 2014-01-01T00:00:00Z 2015-03-21T20:02:34Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.9/2652 |
url |
http://hdl.handle.net/10400.9/2652 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Durães, Nuno; Silva, Eduardo Ferreira da; Bobos, Iuliu; Ávila, Paula - Rare Earth Elements fractionation in native vegetation from the Moncorvo iron mines, NE Portugal. In: Procedia Earth and Planetary Science, Vol. 10 (2014), p. 376-382 1878-5220 http://dx.doi.org/10.1016/j.proeps.2014.08.064 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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