Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1096433
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dc.contributor.authorLEAL, O. A.
dc.contributor.authorDICK, D. P.
dc.contributor.authorCOSTA, F. de S.
dc.contributor.authorKNICKER, H.
dc.contributor.authorCARVALHO JÚNIOR, J. A. de
dc.contributor.authorSANTOS, J. C.
dc.date.accessioned2019-01-02T23:34:34Z-
dc.date.available2019-01-02T23:34:34Z-
dc.date.created2018-09-27
dc.date.issued2019
dc.identifier.citationJournal of the Brazilian Chemical Society, v. 30, n. 2, p. 413-424, 2019.
dc.identifier.issn0103-5053 (impresso) / 1678-4790 (online)
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1096433-
dc.descriptionThe aim of this study was to investigate impacts of Amazon Forest (AF) fire and conversion to pasture on carbon accumulation in particle size fractions and organic matter (OM) composition of an Acrisol. Soil samples were collected (0.00-2.00 m depth) in three sites: native AF (NAF); AF under natural regeneration for two years after burning (BAF); 23-years old Brachiaria pasture after AF burning (BRA). Assuming NAF area as reference, BAF and BRA areas showed negative carbon balance when carbon emitted to the atmosphere at AF burning is taken into account. Soil OM aromaticity and hydrophobicity, assessed via 13C nuclear magnetic resonance, in BRA and BAF were similar to that in NAF. Fire and post-fire land use altered the carbon distribution in sand, silt and clay along the soil profile and seem to have affected organo-mineral and OM self-assemblage interactions, since the relation between total soil carbon and carbon in clay was asymptotic in BAF and linear in NAF and BRA.
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBosque tropical húmedo
dc.subjectSuelos quemados
dc.subjectRegeneración natural
dc.subjectMateria orgánica del suelo
dc.subjectReservorios de carbono
dc.subjectAcrisoles
dc.subjectFazenda Santa Luzia
dc.subjectCruzeiro do Sul (AC)
dc.subjectAcre
dc.subjectAmazônia Ocidental
dc.subjectWestern Amazon
dc.subjectAmazonia Occidental
dc.titleCarbon in physical fractions and organic matter chemical composition of an acrisol after amazon forest burning and conversion into pasture.
dc.typeArtigo de periódico
dc.date.updated2019-11-19T11:11:11Zpt_BR
dc.subject.thesagroFloresta Tropical
dc.subject.thesagroFogo
dc.subject.thesagroImpacto Ambiental
dc.subject.thesagroRegeneração Natural
dc.subject.thesagroMatéria Orgânica
dc.subject.thesagroCarbono
dc.subject.thesagroEstoque
dc.subject.thesagroArgissolos
dc.subject.thesagroSaturação
dc.subject.nalthesaurusTropical rain forests
dc.subject.nalthesaurusBurnt soils
dc.subject.nalthesaurusEnvironmental impact
dc.subject.nalthesaurusNatural regeneration
dc.subject.nalthesaurusSoil organic matter
dc.subject.nalthesaurusCarbon sinks
dc.subject.nalthesaurusAcrisols
riaa.ainfo.id1096433
riaa.ainfo.lastupdate2019-11-19 -02:00:00
dc.identifier.doi10.21577/0103-5053.20180191
dc.contributor.institutionOtávio A. Leal, Instituto Federal Catarinense (IFC); Deborah P. Dick, Universidade Federal do Rio Grande do Sul (UFRGS); FALBERNI DE SOUZA COSTA, CPAF-AC; Heike Knicker, Instituto de Recursos Naturales y Agrobiología de Sevilla; João A. de Carvalho Júnior, Universidade Estadual Paulista (UNESP); José C. Santos, Instituto Nacional de Pesquisas Espaciais (INPE).
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