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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
09/02/2018 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GRUTZMACHER, P.; PUGA, A. P.; BIBAR, M. P. S.; COSCIONE, A. R.; PACKER, A. P.; ANDRADE, C. A. de. |
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Afiliação: |
PRISCILA GRUTZMACHER; ALINE PEREGRINA PUGA, FAPESP; MARIA PAULA SILVEIRA BIBAR, JBS Ambiental; ALINE RENEE COSCIONE, IAC; ANA PAULA CONTADOR PACKER, CNPMA; CRISTIANO ALBERTO DE ANDRADE, CNPMA. |
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Título: |
Carbon stability and mitigation of fertilizer induced N2O emissions in soil amended with biochar. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 625, p. 1459-1466, 2018. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2017.12.196 |
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Idioma: |
Inglês |
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Conteúdo: |
Biochar is a promising tool for an efficient and low environmental impact agriculture since can offer both soil carbon (C) sequestration and mitigation of nitrous oxide (N2O) emissions. The extent of biochar C stability after soil amendment and efficiency in reducing N2O emissions from an external nitrogen (N) source were accessed through laboratory incubations. A clay loam soil was amended with chicken manure (CM), sewage sludge (SS), eucalyptus sawdust (ES) and filter cake (FC) feedstocks and corresponding slow-pyrolysis (400 °C) biochars at 5 g C kg? 1 soil in combination with two N fertilizer rates (0 and 140 mg N kg? 1 soil). Carbon dioxide (CO2) and N2O emissions were measured during 60 days. Biochars and feedstocks CO2 emissions were described by an exponential first order kinetics model. For C mineralization an interaction effect was observed for feedstock source and organic amendment. Lower values of mineralizable C was found for biochars than corresponding feedstocks, except for ES. Carbon losses in 60 days of incubation totaled between 0.8 and 9.4% and 2.4 and 32% for biochars and feedstocks, respectively. Regarding to N2O emissions, only CM-biochar impacted emissions with a two-fold increase in non-fertilized soil. When NH4NO3 was co-applied, biochars reduced fertilizer induced N2O emissions, reaching a seven-fold reduction in SS-biochar treatment. The fertilizer emission factor (EF) decreased with biochar amendments as well, varying between 0.01 and 0.08% of the fertilizer N emitted as N2O, which shows the biochar potential to reduce fertilizer induced N2O emissions, with major reduction by SS-biochar mitigating 87% of the soil-fertilizer emissions. Such potential could be explored by designing biochars based on feedstock chemical and structural properties, including a mixed feedstock source biochar that promotes C sequestration and mitigates N2O emissions. MenosBiochar is a promising tool for an efficient and low environmental impact agriculture since can offer both soil carbon (C) sequestration and mitigation of nitrous oxide (N2O) emissions. The extent of biochar C stability after soil amendment and efficiency in reducing N2O emissions from an external nitrogen (N) source were accessed through laboratory incubations. A clay loam soil was amended with chicken manure (CM), sewage sludge (SS), eucalyptus sawdust (ES) and filter cake (FC) feedstocks and corresponding slow-pyrolysis (400 °C) biochars at 5 g C kg? 1 soil in combination with two N fertilizer rates (0 and 140 mg N kg? 1 soil). Carbon dioxide (CO2) and N2O emissions were measured during 60 days. Biochars and feedstocks CO2 emissions were described by an exponential first order kinetics model. For C mineralization an interaction effect was observed for feedstock source and organic amendment. Lower values of mineralizable C was found for biochars than corresponding feedstocks, except for ES. Carbon losses in 60 days of incubation totaled between 0.8 and 9.4% and 2.4 and 32% for biochars and feedstocks, respectively. Regarding to N2O emissions, only CM-biochar impacted emissions with a two-fold increase in non-fertilized soil. When NH4NO3 was co-applied, biochars reduced fertilizer induced N2O emissions, reaching a seven-fold reduction in SS-biochar treatment. The fertilizer emission factor (EF) decreased with biochar amendments as well, varying between 0.01 and 0.08% of the... Mostrar Tudo |
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Palavras-Chave: |
Biocarvão; Biomassa pirolisada; Black carbon; Pyrolized biomass. |
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Thesagro: |
Biomassa; Carbono; Nitrogênio. |
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Thesaurus Nal: |
Biochar; carbon sequestration; Greenhouse gas emissions; nitrogen; Pyrolysis. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02891naa a2200337 a 4500
001 2087580
005 2019-10-30
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2017.12.196$2DOI
100 1 $aGRUTZMACHER, P.
245 $aCarbon stability and mitigation of fertilizer induced N2O emissions in soil amended with biochar.$h[electronic resource]
260 $c2018
520 $aBiochar is a promising tool for an efficient and low environmental impact agriculture since can offer both soil carbon (C) sequestration and mitigation of nitrous oxide (N2O) emissions. The extent of biochar C stability after soil amendment and efficiency in reducing N2O emissions from an external nitrogen (N) source were accessed through laboratory incubations. A clay loam soil was amended with chicken manure (CM), sewage sludge (SS), eucalyptus sawdust (ES) and filter cake (FC) feedstocks and corresponding slow-pyrolysis (400 °C) biochars at 5 g C kg? 1 soil in combination with two N fertilizer rates (0 and 140 mg N kg? 1 soil). Carbon dioxide (CO2) and N2O emissions were measured during 60 days. Biochars and feedstocks CO2 emissions were described by an exponential first order kinetics model. For C mineralization an interaction effect was observed for feedstock source and organic amendment. Lower values of mineralizable C was found for biochars than corresponding feedstocks, except for ES. Carbon losses in 60 days of incubation totaled between 0.8 and 9.4% and 2.4 and 32% for biochars and feedstocks, respectively. Regarding to N2O emissions, only CM-biochar impacted emissions with a two-fold increase in non-fertilized soil. When NH4NO3 was co-applied, biochars reduced fertilizer induced N2O emissions, reaching a seven-fold reduction in SS-biochar treatment. The fertilizer emission factor (EF) decreased with biochar amendments as well, varying between 0.01 and 0.08% of the fertilizer N emitted as N2O, which shows the biochar potential to reduce fertilizer induced N2O emissions, with major reduction by SS-biochar mitigating 87% of the soil-fertilizer emissions. Such potential could be explored by designing biochars based on feedstock chemical and structural properties, including a mixed feedstock source biochar that promotes C sequestration and mitigates N2O emissions.
650 $aBiochar
650 $acarbon sequestration
650 $aGreenhouse gas emissions
650 $anitrogen
650 $aPyrolysis
650 $aBiomassa
650 $aCarbono
650 $aNitrogênio
653 $aBiocarvão
653 $aBiomassa pirolisada
653 $aBlack carbon
653 $aPyrolized biomass
700 1 $aPUGA, A. P.
700 1 $aBIBAR, M. P. S.
700 1 $aCOSCIONE, A. R.
700 1 $aPACKER, A. P.
700 1 $aANDRADE, C. A. de
773 $tScience of The Total Environment$gv. 625, p. 1459-1466, 2018.
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Embrapa Meio Ambiente (CNPMA) |
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| 3. |  | GAVIOLLI, V. R. N.; BUZANSKSA, M. E.; CRUZ, V. A. R.; SAVEGNAGO, R. P.; MUNARI, D. P.; FREITAS, A. R. de; ALENCAR, M. M. de. Genetic associations between weight at maturity and maturation rate witn ages and weights at first and second calving in Canchim beef cattle. Journal of Applied Genetics, v. 53, p. 331-335, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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