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Registro Completo |
Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
27/09/2018 |
Data da última atualização: |
02/07/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LEAL, O. A.; DICK, D. P.; COSTA, F. de S.; KNICKER, H.; CARVALHO JÚNIOR, J. A. de; SANTOS, J. C. |
Afiliação: |
Otávio 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). |
Título: |
Carbon in physical fractions and organic matter chemical composition of an acrisol after amazon forest burning and conversion into pasture. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v. 30, n. 2, p. 413-424, 2019. |
ISSN: |
0103-5053 (impresso) / 1678-4790 (online) |
DOI: |
10.21577/0103-5053.20180191 |
Idioma: |
Inglês |
Conteúdo: |
The 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. |
Palavras-Chave: |
Acre; Acrisoles; Amazonia Occidental; Amazônia Ocidental; Bosque tropical húmedo; Cruzeiro do Sul (AC); Fazenda Santa Luzia; Materia orgánica del suelo; Regeneración natural; Reservorios de carbono; Suelos quemados; Western Amazon. |
Thesagro: |
Argissolos; Carbono; Estoque; Floresta Tropical; Fogo; Impacto Ambiental; Matéria Orgânica; Regeneração Natural; Saturação. |
Thesaurus Nal: |
Acrisols; Burnt soils; Carbon sinks; Environmental impact; Natural regeneration; Soil organic matter; Tropical rain forests. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189618/1/26688.pdf
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Marc: |
LEADER 02622naa a2200541 a 4500 001 2096433 005 2021-07-02 008 2019 bl uuuu u00u1 u #d 022 $a0103-5053 (impresso) / 1678-4790 (online) 024 7 $a10.21577/0103-5053.20180191$2DOI 100 1 $aLEAL, O. A. 245 $aCarbon in physical fractions and organic matter chemical composition of an acrisol after amazon forest burning and conversion into pasture.$h[electronic resource] 260 $c2019 520 $aThe 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. 650 $aAcrisols 650 $aBurnt soils 650 $aCarbon sinks 650 $aEnvironmental impact 650 $aNatural regeneration 650 $aSoil organic matter 650 $aTropical rain forests 650 $aArgissolos 650 $aCarbono 650 $aEstoque 650 $aFloresta Tropical 650 $aFogo 650 $aImpacto Ambiental 650 $aMatéria Orgânica 650 $aRegeneração Natural 650 $aSaturação 653 $aAcre 653 $aAcrisoles 653 $aAmazonia Occidental 653 $aAmazônia Ocidental 653 $aBosque tropical húmedo 653 $aCruzeiro do Sul (AC) 653 $aFazenda Santa Luzia 653 $aMateria orgánica del suelo 653 $aRegeneración natural 653 $aReservorios de carbono 653 $aSuelos quemados 653 $aWestern Amazon 700 1 $aDICK, D. P. 700 1 $aCOSTA, F. de S. 700 1 $aKNICKER, H. 700 1 $aCARVALHO JÚNIOR, J. A. de 700 1 $aSANTOS, J. C. 773 $tJournal of the Brazilian Chemical Society$gv. 30, n. 2, p. 413-424, 2019.
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Embrapa Acre (CPAF-AC) |
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Biblioteca(s): Embrapa Acre. |
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