Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/979469
Unidade da Embrapa/Coleção:: Embrapa Solos - Resumo em anais de congresso (ALICE)
Data do documento: 11-Fev-2014
Tipo do Material: Resumo em anais de congresso (ALICE)
Autoria: ALHO, C. F. B. V.
CROSS, A.
SOHI, S.
RODRIGUES, R. C.
NOVOTNY, E. H.
MAIA, C. M. B. de F.
LELIS, R. C. C.
Informaçães Adicionais: CARLOS FRANCISCO BRAZÃO VIEIRA ALHO, Wageningen University, Wageningen, the Netherlands; ANDREW CROOS, United Kingdom Biochar Re- search Centre, Edinburgh, United Kingdom; SARAN SOHI, United Kingdom Biochar Re- search Centre, Edinburgh, United Kingdom; RUBEN CASSEL RODRIGUES, CPACT; ETELVINO HENRIQUE NOVOTNY, CNPS; CLAUDIA MARIA BRANCO DE FREITAS MAIA, Embrapa Floresta; ROBERTO CARLOS COSTA LELIS, UFRRJ.
Título: Biochar stable fraction quantification by thermochemical oxidation and assessement by 13C-NMR spectrocopy.
Edição: 2013
Fonte/Imprenta: In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 10., Santo Antônio de Goiás, GO, 2013. Anais... Porto Alegre: Grupo Brasileiro da Sociedade Internacional de substâncias húmicas, 2013.
Páginas: 4p.
Idioma: pt_BR
Palavras-chave: Sta- bility
Thermo-chemical oxidation
Functionalizatio n.
Conteúdo: Although biochar is often regarded lized into carbon dioxide. However, it is unclear how much of this material is rapidly oxidized, that is, how much remain in the soil for NQPIGTRGTKQFU'ƑQTVUJCXGDGGPWPFGTVCMGP to develop methodologies to quantify the stable fraction present in biochar, quickly, easily reproducible, and that somehow represents TGCN?GNFEQPFKVKQPU6JGTGHQTGVJGCKOQHVJKU UVWF[YCUVQGXCNWCVGVJGGƑGEVQHFKƑGTGPV R[TQN[UKU?PCNVGORGTCVWTGUQPVJGUVCDKNKV[QH biochar produced from Eucalyptus dunnii wood by analyzing biochar samples before and after a thermo-chemical oxidation using 13 C NMR spec- troscopy. Stable-C fraction increased as higher R[TQN[UKU?PCNVGORGTCVWTGYCU6JGTOQEJGOical oxidation was responsible for removing labile structures still present as well as aromatic structures less resistant to degradation. Thermo-chemical oxidation was also responsible for the functionalization of biochars, being this ef- HGEVOKNFGTCUJKIJGTR[TQN[UKU?PCNVGORGTCVWTG was. The balance between C storage (Stable-C HTCEVKQPCPFCITQPQOKEDGPG?VU HWPEVKQPCNK\Ction) of biochar should be carefully evaluated, as its characteristics can vary depending on the conditions by which it was produced.
NAL Thesaurus: carbon sequestration.
biochar
Ano de Publicação: 2013
Aparece nas coleções:Resumo em anais de congresso (CNPS)

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