Logo do repositório
 
Publicação

Mercury mobilization in shrubland after a prescribed fire in NE Portugal: insight on soil organic matter composition and different aggregate size

2023Artigo científico Acesso aberto
Ver registo simples
dc.contributor.authorMéndez-López, Melissa
dc.contributor.authorJiménez-Morillo, Nicasio Tomás
dc.contributor.authorFonseca, Felícia
dc.contributor.authorFigueiredo, Tomás de
dc.contributor.authorParente-Sendín, Andrea
dc.contributor.authorAlonso-Vega, Flora
dc.contributor.authorArias-Estévez, Manuel
dc.contributor.authorNóvoa-Muñoz, Juan Carlos
dc.date.accessioned2023-12-15T10:29:21Z
dc.date.available2023-12-15T10:29:21Z
dc.date.issued2023
dc.description.abstractSoils constitute the major reservoir of mercury (Hg) in terrestrial ecosystems, whose stability may be threatened by wildfires. This research attempts to look at the effect of prescribed fire on the presence of Hg in a shrubland ecosystem from NE Portugal, delving into its relationship with soil aggregate size and the molecular composition of soil organic matter (SOM). During the prescribed fire, on average 347 mg Hg ha􀀀 1 were lost from the burnt aboveground biomass of shrubs and 263 mg Hg ha􀀀 1 from the combustion of the soil organic horizon. Overall, Hg concentration and pools in the mineral soil did not show significant changes due to burning, which highlights their role as long-term Hg reservoirs. The higher Hg concentrations found in smaller aggregates (<0.2 mm) compared to coarser ones (0.5–2 mm) are favored by the higher degree of organic matter decomposition (low C/ N ratio), rather than by greater total organic C contents. The Hg-enriched finest fraction of soil (<0.2 mm) could be more prone to be mobilized by erosion, whose potential arrival to water bodies increases the environmental concern for the Hg present in fire-affected soils. The SOM quality (molecular composition) and the main organic families, analyzed by Fourier-transform infrared spectroscopy in combination with multivariate statisticalpt_PT
dc.description.sponsorshipThis work was supported by the Interreg V-A Spain-Portugal program (POCTEP) 2014–2020 (Project 0701_TERRAMATER_1_E) funded by the European Regional Development Fund (FEDER), the EROFIRE project (PCIF/RPG/0079/2018) funded by FCT, Portugal and the InMerForEcos project (PID 2021-125114OB-I00) funded by Ministerio de Ciencia e Innovaciónn and Agencia Estatal de Investigaciónn (MCIN/ AEI) and FEDER. M. Méndez-López was supported by the predoctoral grant FPU (FPU17/05484) funded by the Ministerio de Educaciónn y Formación Profesional. N.T. Jiménez-Morillo was supported by a “Ramón y Cajal” contract (RYC2021-031253-I) funded by MCIN/AEI/10 .13039/501100011033 and the European Union “NextGenerationEU”/ PRTR”. The financial support of the Consellería de Cultura, Educación e Universidade (Xunta de Galicia) through the contract ED431C2021/46- GRC granted to the research group BV1 of the University of Vigo is also recognized. Open-access funding for this research has been provided by the University of Vigo/CISUG.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMéndez-López, Melissa; Jiménez-Morillo, Nicasio Tomás; Fonseca, Felicia; Figueiredo, Tomás de; Parente-Sendín, Andrea; Alonso-Vega, Flora; Arias-Estévez, Manuel; Nóvoa-Muñoz, Juan Carlos (2023). Mercury mobilization in shrubland after a prescribed fire in NE Portugal: Insight on soil organic matter composition and different aggregate size. Science of The Total Environment. ISSN 0048-9697. 904, p. 1-15pt_PT
dc.identifier.doi10.1016/j.scitotenv.2023.167532pt_PT
dc.identifier.eissn1879-1026
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10198/28947
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHgpt_PT
dc.subjectPrescribed burningpt_PT
dc.subjectRe-emissionpt_PT
dc.subjectATR-FT/IRpt_PT
dc.subjectChemometricspt_PT
dc.subjectSOMpt_PT
dc.titleMercury mobilization in shrubland after a prescribed fire in NE Portugal: insight on soil organic matter composition and different aggregate sizept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPCIF/RPG/0079/2018
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de Projetos de Investigação Científica e Desenvolvimento Tecnológico no Âmbito da Prevenção e Combate a Incêndios Florestais - 2018/PCIF%2FRPG%2F0079%2F2018/PT
oaire.citation.endPage15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleScience of The Total Environmentpt_PT
oaire.citation.volume904pt_PT
oaire.fundingStreamConcurso de Projetos de Investigação Científica e Desenvolvimento Tecnológico no Âmbito da Prevenção e Combate a Incêndios Florestais - 2018
person.familyNameFonseca
person.familyNameFigueiredo
person.givenNameFelícia
person.givenNameTomás d'Aquino
person.identifier1297327
person.identifier.ciencia-id961D-607D-51CC
person.identifier.orcid0000-0001-7727-071X
person.identifier.orcid0000-0001-7690-8996
person.identifier.scopus-author-id36970960500
person.identifier.scopus-author-id54790554500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4f6f8be1-73c1-45bb-b159-ce3f8ff96c84
relation.isAuthorOfPublicationdb897e48-ecf7-4ce1-ba27-369260337510
relation.isAuthorOfPublication.latestForDiscoverydb897e48-ecf7-4ce1-ba27-369260337510
relation.isProjectOfPublication14f98a38-dd1c-4561-9c62-45ae28750556
relation.isProjectOfPublication.latestForDiscovery14f98a38-dd1c-4561-9c62-45ae28750556

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
1-s2.0-S0048969723061594-main.pdf
Tamanho:
6.33 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
1.75 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

CIMO - Artigos em Revistas Indexados à WoS/Scopus