Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1135490
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dc.contributor.authorMABONI, C.
dc.contributor.authorBREMM, T.
dc.contributor.authorAGUIAR, L. J. G.
dc.contributor.authorSCIVITTARO, W. B.
dc.contributor.authorSOUZA, V. de A.
dc.contributor.authorZIMERMANN, H. R.
dc.contributor.authorTEICHRIEB, C. A.
dc.contributor.authorOLIVEIRA, P. E. S. de
dc.contributor.authorHERDIES, D. L.
dc.contributor.authorDEGRAZIA, G. A.
dc.contributor.authorROBERTI, D. R.
dc.date.accessioned2021-10-22T12:01:15Z-
dc.date.available2021-10-22T12:01:15Z-
dc.date.created2021-10-22
dc.date.issued2021
dc.identifier.citationSustainability, v. 13, n. 20, 11336, 2021.
dc.identifier.issn2071-1050
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1135490-
dc.descriptionPaddy fields are significant anthropogenic sources of methane (CH4) emissions. In southern Brazil, rice is grown in lowland flooded areas once a year, followed by a long fallow period. This study aimed to measure CH4 fluxes in a rice paddy field in southern Brazil during the rice-growing season of 2015/2016 and the following fallow period. The fluxes were estimated using the eddy covariance (EC) technique and soil chamber (SC). Diurnal and seasonal variations of CH4 fluxes and potential meteorological drivers were analyzed. The CH4 fluxes showed distinct diurnal variations in each analyzed subperiod (vegetative, reproductive, pre-harvest, no rice, and land preparation), characterized by a single-peak diurnal pattern. The variables that most influenced methane emissions were air and surface temperatures. In the growing season, the rice vegetative stage was responsible for most of the measured emissions. The accumulated annual emission estimated was 44.88 g CH4 m?2 y?1, being 64% (28.50 g CH4 m?2) due to the rice-growing season and 36% (16.38 g CH4 m?2) due to the fallow period. These results show the importance of including fallow periods in strategies to mitigate methane emissions in flood irrigated rice-growing areas.
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectFluxo de CH4
dc.titleThe fallow period plays an important role in annual CH4 emission in a rice paddy in southern Brazil.
dc.typeArtigo de periódico
dc.subject.thesagroMetano
dc.subject.thesagroArroz
dc.subject.thesagroPousio
riaa.ainfo.id1135490
riaa.ainfo.lastupdate2021-10-22
dc.identifier.doidoi.org/10.3390/su132011336
dc.contributor.institutionCRISTIANO MABONI, UFSM; TIAGO BREMM, UFSM; LEONARDO JOSÉ GONÇALVES AGUIAR, UFPEL; WALKYRIA BUENO SCIVITTARO, CPACT; VANESSA DE ARRUDA SOUZA; HANS ROGÉRIO ZIMERMANN, UFSM; CLAUDIO ALBERTO TEICHRIEB, UFSM; PABLO ELI SOARES DE OLIVEIRA, UFSM; DIRCEU LUIS HERDIES, CPTEC; GERVÁSIO ANNES DEGRAZIA, UFSM; DÉBORA REGINA ROBERTI, UFSM.
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