Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Florida-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorCardoso, Abmael da Silva-
Autor(es): dc.creatorAlari, Fernando de Oliveira-
Autor(es): dc.creatorde Andrade, Nomaiací-
Autor(es): dc.creatorNascimento, Tiago da Silva-
Autor(es): dc.creatorvan Cleef, Flavia de Oliveira Scarpino-
Autor(es): dc.creatorAlves, Bruno José Rodrigues-
Autor(es): dc.creatorRuggieri, Ana Cláudia-
Autor(es): dc.creatorMalheiros, Euclides Braga-
Data de aceite: dc.date.accessioned2025-08-21T15:10:26Z-
Data de disponibilização: dc.date.available2025-08-21T15:10:26Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.agrformet.2022.108851-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/234081-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/234081-
Descrição: dc.descriptionSilvopastoral systems are suggested to be important strategies for mitigating greenhouse gas emissions. However, little information is available on the effects of these systems on soil nitrous oxide (N2O) production. Expanding the knowledge of N2O emissions and the responses of key variables that drive N2O production are essential for understanding nitrogen loss. To quantify these factors in the silvopastoral system (Eucalyptus grandis × Megathyrsus maximus) and the monoculture (Megathyrsus maximus Guinea Massai grass), we conducted a 4-year field assessment. The experimental design was a completely randomized block with two factors: (1) monoculture (MONO) and silvopastoral systems with tree rows of 12 m (SP1) and 6 m (SP2), and (2) two seasons (rainy and dry), with 5 repetitions. Emissions were quantified using the closed static chamber methodology and gas chromatography analysis. In the wet summer, the silvopasture system differed from MONO, while in the dry winter, only the SP1 group differed from the monoculture; N2O emissions were higher during the rainy season. The MONO treatment revealed larger N2O fluxes in the first year of evaluation, whereas the silvopasture systems peaked in a later year. A significant positive Pearson correlation was found between N2O fluxes and soil moisture (r=0.89; P < 0.001) and soil temperature (r=0.76; P< 0.01). Our study showed that the effect of the silvopastoral system was season-dependent. N2O emissions increased over the years in silvopastoral systems, as opposed to the monoculture, and were driven by soil moisture and temperature.-
Descrição: dc.descriptionDepartament of Animal Science College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila Industrial-
Descrição: dc.descriptionDepartament of Exactal Ciences and Engineer College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila Industrial-
Descrição: dc.descriptionDepartment of Agronomy Institute of Food and Agricultural Sciences University of Florida-
Descrição: dc.descriptionEmbrapa Agrobiologia, Rodovia BR-465, Km, 7-
Descrição: dc.descriptionDepartament of Animal Science College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila Industrial-
Descrição: dc.descriptionDepartament of Exactal Ciences and Engineer College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila Industrial-
Idioma: dc.languageen-
Relação: dc.relationAgricultural and Forest Meteorology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGreenhouse gas emission-
Palavras-chave: dc.subjectmixed pasture-
Palavras-chave: dc.subjectN loss-
Palavras-chave: dc.subjectN2O driving variable-
Palavras-chave: dc.subjectN2O seasonality-
Título: dc.titleNitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.