Greenhouse gas emissions and chemical and physical soil attributes of off-season agricultural production systems in the Savannah of Maranhão State, Brazil.

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dc.contributorLUCÉLIA 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.
dc.creatorBRITO, L. de C. R. de
dc.creatorSOUZA, H. A. de
dc.creatorSIGNOR, D.
dc.creatorSOUZA, I. M. de
dc.creatorSANTOS, S. F. da C. B. dos
dc.creatorSOBRAL A. H. S.
dc.date2023-07-12T12:24:07Z
dc.date2023-07-12T12:24:07Z
dc.date2023-07-12
dc.date2023
dc.date.accessioned2026-07-07T05:58:02Z
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.identifierEngenharia Agrícola, v. 43, n. 2, e20220181, 2023.
dc.identifier1809-4430
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1154902
dc.identifierhttp://dx.doi.org/10.1590/1809-4430-Eng.Agric.v43n2e20220181/2023
dc.identifier.urihttp://hdl.handle.net/123456789/503542
dc.languageeng
dc.rightsopenAccess
dc.subjectAtributos químicos
dc.subjectEmissões de gases
dc.subjectAtributos físicos
dc.subjectÓxido nitroso
dc.subjectEfeito Estufa
dc.subjectSolo
dc.subjectCarbono
dc.subjectCerrado
dc.subjectDióxido de Carbono
dc.subjectMetano
dc.subjectCerrado soils
dc.subjectCarbon dioxide
dc.subjectMethane
dc.subjectNitrous oxide
dc.subjectSoil
dc.subjectGreenhouse gases
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

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