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Organic matter composition and paleoclimatic changes in tropical mountain peatlands currently under grasslands and forest clusters

2019Journal article Open access
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dc.contributor.authorSilva, Alexandre Christófaro
dc.contributor.authorBarbosa, Maurício Soares
dc.contributor.authorBarral, Uidemar Morais
dc.contributor.authorSilva, Bárbara Pereira Christófaro
dc.contributor.authorFernandes, José Sebastião Cunha
dc.contributor.authorViana, Abraão José Silva
dc.contributor.authorFilho, Carlos Victor Mendonça
dc.contributor.authorBispo, Diêgo Faustolo Alves
dc.contributor.authorChristófaro, Cristiano
dc.contributor.authorRagonezi, Carla
dc.contributor.authorGuilherme, Luiz Roberto Guimarães
dc.date.accessioned2022-02-04T11:27:09Z
dc.date.available2022-02-04T11:27:09Z
dc.date.issued2019
dc.description.abstractTropical peatlands are important ecosystems for Planet Earth, as they store large amounts of carbon and water. A better understanding of the impact of vegetation type and altitude in content, composition, and rate of accu mulation of organic matter is key for assessing the current role of such environments. This study evaluated fibric and soluble fractions as well as the lignocellulosic and the isotopic compositions of the peat organic matter from four tropical mountain peatlands located at different altitudes of the Serra do Espinhaço Meridional, state of Minas Gerais, Brazil. The peatlands are currently under grasslands and forest clusters. Samples of peat under both vegetation types were collected and analyzed for organic matter fractions, cellulose, and lignin (van Soest method), as well as carbon and nitrogen isotopes. Different depths were chosen for radiocarbon dating of se lected samples. The organic matter of peatlands currently under grasslands and forest clusters presented dif ferences in soluble fractions, lignocellulosic composition, and δ13C values. Multivariate analyses allowed grouping the peatlands by altitude and vegetation type. The chronological succession of grassland and forest clusters in tropical mountain peatlands was influenced by altitude and was related to paleoclimatic changes.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSilva, A. C., Barbosa, M. S., Barral, U. M., Silva, B. P. C., Fernandes, J. S. C., Viana, A. J. S., ... & Guilherme, L. R. G. (2019). Organic matter composition and paleoclimatic changes in tropical mountain peatlands currently under grasslands and forest clusters. Catena, 180, 69-82. http://dx.doi.org/10.1016/j.catena.2019.04.017pt_PT
dc.identifier.doi10.1016/j.catena.2019.04.017pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4041
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectOrganosolpt_PT
dc.subjectVegetation typespt_PT
dc.subjectAltitudept_PT
dc.subjectC and N isotopespt_PT
dc.subject.pt_PT
dc.subjectEscola Superior de Tecnologias e Gestãopt_PT
dc.titleOrganic matter composition and paleoclimatic changes in tropical mountain peatlands currently under grasslands and forest clusterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage82pt_PT
oaire.citation.startPage69pt_PT
oaire.citation.titleCATENApt_PT
oaire.citation.volume180pt_PT
person.familyNameRagonezi
person.givenNameCarla
person.identifier.ciencia-idFC12-D3F0-EF3D
person.identifier.orcid0000-0002-1822-5473
person.identifier.scopus-author-id36460033800
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa51cc988-63ce-40e5-9b71-a27b1eadc937
relation.isAuthorOfPublication.latestForDiscoverya51cc988-63ce-40e5-9b71-a27b1eadc937

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