Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/15791
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dc.contributor.authorBarbosa, Pedro Maia-
dc.contributor.authorMelack, John M.-
dc.contributor.authorFarjalla, Vinícius Fortes-
dc.contributor.authorAmaral, João Henrique Fernandes-
dc.contributor.authorScofield, Vinicius-
dc.contributor.authorForsberg, Bruce Rider-
dc.date.accessioned2020-05-18T21:21:04Z-
dc.date.available2020-05-18T21:21:04Z-
dc.date.issued2016-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/15791-
dc.description.abstractThe first extensive set of measurements of methane concentrations and fluxes for the Negro River and its major tributaries combined with complementary data for the Solimões and Madeira rivers and several tributaries are presented and their temporal and spatial variations examined. Fluxes were measured using floating chambers, and dissolved CH4 concentrations were measured by the headspace technique. In the Solimões basin, tributaries had higher fluxes when water levels were low; no statistical difference among periods for lakes and the main stem river was observed. In the Negro basin, rivers had higher fluxes with greater variations among rivers during high water than during low water based on fluxes calculated from the concentration gradient and modelled gas transfer coefficients. We estimate a regional methane emission of 0.31 Tg C yr−1 for large river channels in the lowland Amazon basin. © 2016 Association for the Sciences of Limnology and Oceanographyen
dc.language.isoenpt_BR
dc.relation.ispartofVolume 61, Pags. S221-S237pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectConcentration (composition)en
dc.subjectFlux Measurementen
dc.subjectMeasurement Methoden
dc.subjectMethaneen
dc.subjectRiver Channelen
dc.subjectSpatio-temporal Analysisen
dc.subjectTributaryen
dc.subjectWater Levelen
dc.subjectAmazon Basinen
dc.subjectAmazonasen
dc.subjectMadeira Riveren
dc.subjectRio Negro Basinen
dc.subjectSolimoes Riveren
dc.titleDiffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basinen
dc.typeArtigopt_BR
dc.identifier.doi10.1002/lno.10358-
dc.publisher.journalLimnology and Oceanographypt_BR
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