Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1154902
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dc.contributor.authorBRITO, L. de C. R. de
dc.contributor.authorSOUZA, H. A. de
dc.contributor.authorSIGNOR, D.
dc.contributor.authorSOUZA, I. M. de
dc.contributor.authorSANTOS, S. F. da C. B. dos
dc.contributor.authorSOBRAL A. H. S.
dc.date.accessioned2023-07-12T12:24:07Z-
dc.date.available2023-07-12T12:24:07Z-
dc.date.created2023-07-12
dc.date.issued2023
dc.identifier.citationEngenharia Agrícola, v. 43, n. 2, e20220181, 2023.
dc.identifier.issn1809-4430
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1154902-
dc.descriptionManagement of agricultural production systems interferes with greenhouse gases (GHG) emissions, thereby altering physical, chemical, and biological attributes of soil; therefore, it is important to understand the relationship between soil attributes and GHG emissions. This study evaluated GHG emissions and their relationship with soil attributes in off- season soybean, maize, brachiaria and eucalyptus production systems. The experiment was carried out in Brejo, Maranhão, Brazil, with soybean (Glycine max), maize (Zea mays), brachiaria (Urochloa ruzizienses), and eucalyptus (Eucalyptus grandis). Fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) were evaluated using air samples analyzed by gas chromatography. Soil attributes were ammonium and nitrate contents, total organic carbon, moisture, pH, density, total porosity, and water-filled pore space. N2O flux was 287.1 μg m-2 h -1 for eucalyptus cultivation, while areas cultivated with soybeans, maize and brachiaria had influxes of 46.7, 7.2, and 13.17 μg m-2 h-1, respectively. In the off-season, the highest emissions of N2O and CO2 were measured in eucalyptus areas due to soil moisture and porosity conditions provided by accumulation of litter on the soil surface.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectAtributos químicos
dc.subjectEmissões de gases
dc.subjectAtributos físicos
dc.subjectÓxido nitroso
dc.titleGreenhouse gas emissions and chemical and physical soil attributes of off-season agricultural production systems in the Savannah of Maranhão State, Brazil.
dc.typeArtigo de periódico
dc.subject.thesagroEfeito Estufa
dc.subject.thesagroSolo
dc.subject.thesagroCarbono
dc.subject.thesagroCerrado
dc.subject.thesagroDióxido de Carbono
dc.subject.thesagroMetano
dc.subject.nalthesaurusCerrado soils
dc.subject.nalthesaurusCarbon dioxide
dc.subject.nalthesaurusMethane
dc.subject.nalthesaurusNitrous oxide
dc.subject.nalthesaurusSoil
dc.subject.nalthesaurusGreenhouse gases
riaa.ainfo.id1154902
riaa.ainfo.lastupdate2023-07-12
dc.identifier.doihttp://dx.doi.org/10.1590/1809-4430-Eng.Agric.v43n2e20220181/2023
dc.contributor.institutionLUCÉLIA DE C. R. DE BRITO, UFPI; HENRIQUE ANTUNES DE SOUZA, CPAMN; DIANA SIGNOR DEON, CPATSA; IVANDERLETE M. DE SOUZA, State University Vale do Acarau, Sobral - CE; SMAIELLO F. DA C. B. DOS SANTOS, UFPI; AMANDA H. S. SOBRAL, UFPI.
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