High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs

Detalhes bibliográficos
Ano de defesa: 2017
Autor(a) principal: Teixeira, José Reinaldo Paranaíba Vilela Alves lattes
Orientador(a): Barros, Nathan de Oliveira lattes
Banca de defesa: Pacheco, Felipe Siqueira lattes, Mendonça, Raquel Fernandes lattes
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Juiz de Fora (UFJF)
Programa de Pós-Graduação: Programa de Pós-graduação em Ecologia
Departamento: ICB – Instituto de Ciências Biológicas
País: Brasil
Palavras-chave em Português:
Reservoirs
Carbon dioxide
Methane
Área do conhecimento CNPq:
CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA
Link de acesso: https://repositorio.ufjf.br/jspui/handle/ufjf/5656
Resumo: -
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spelling Barros, Nathan de Oliveirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4183542H6Roland, Fábiohttp://lattes.cnpq.br/Pacheco, Felipe Siqueirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4183545J6Mendonça, Raquel Fernandeshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4739535E1http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4869113A4Teixeira, José Reinaldo Paranaíba Vilela Alves2017-08-30T12:31:54Z2018-06-012017-08-30T12:31:54Z2017-02-22https://repositorio.ufjf.br/jspui/handle/ufjf/5656-Reservoirs are significant sources of carbon emission to the atmosphere. However the magnitude of this emission has huge uncertainties, partly related to the methods of sampling and partly related to the unconsidered spatial-temporal variability. Here we examined the spatial variability and its drivers of partial pressure, gas exchange coefficient and diffusive flux of CO2 and CH4 in three tropical reservoirs. We observed high spatial variability in CO2 and CH4 concentration and flux within the reservoirs. Our results suggest that all reservoirs were supersaturated in both gases, even considering that some areas were CO2 sinks. A large spatial variability in k600 for CO2 and CH4, and consistently observed k600CH4 values higher than k600CO2 were also observed in all reservoirs. We could explain the high spatial variability of CO2 and CH4 by a combination of parameters such as dissolved oxygen, pH, chlorophyll, wind speed and bathymetry. Finally, we suggest a minimum sampling effort required to representatively cover a study site. Our results illustrate the first specially-resolved analysis of CH4 emissions in reservoirs, and we suggest that in large systems (area ≥ 1,000 km²) and small systems (area ≤ 100 km²), 600 and 200 measurements sites, respectively, are need for a representative dry period carbon flux estimates.FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisporUniversidade Federal de Juiz de Fora (UFJF)Programa de Pós-graduação em EcologiaUFJFBrasilICB – Instituto de Ciências BiológicasCNPQ::CIENCIAS BIOLOGICAS::ECOLOGIAReservoirsCarbon dioxideMethaneHigh spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFJFinstname:Universidade Federal de Juiz de Fora (UFJF)instacron:UFJFTHUMBNAILjosereinaldoparanaíbavilelaalvesteixeira.pdf.jpgjosereinaldoparanaíbavilelaalvesteixeira.pdf.jpgGenerated Thumbnailimage/jpeg1149https://repositorio.ufjf.br/jspui/bitstream/ufjf/5656/4/josereinaldoparana%c3%adbavilelaalvesteixeira.pdf.jpgac030212824b4e3e7158becb6ae37896MD54LICENSElicense.txtlicense.txttext/plain; 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dc.title.pt_BR.fl_str_mv High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
title High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
spellingShingle High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
Teixeira, José Reinaldo Paranaíba Vilela Alves
CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA
Reservoirs
Carbon dioxide
Methane
title_short High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
title_full High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
title_fullStr High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
title_full_unstemmed High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
title_sort High spatial variability of carbon emission and gas exchange coefficient in three tropical reservoirs
author Teixeira, José Reinaldo Paranaíba Vilela Alves
author_facet Teixeira, José Reinaldo Paranaíba Vilela Alves
author_role author
dc.contributor.advisor1.fl_str_mv Barros, Nathan de Oliveira
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4183542H6
dc.contributor.advisor-co1.fl_str_mv Roland, Fábio
dc.contributor.advisor-co1Lattes.fl_str_mv http://lattes.cnpq.br/
dc.contributor.referee1.fl_str_mv Pacheco, Felipe Siqueira
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4183545J6
dc.contributor.referee2.fl_str_mv Mendonça, Raquel Fernandes
dc.contributor.referee2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4739535E1
dc.contributor.authorLattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4869113A4
dc.contributor.author.fl_str_mv Teixeira, José Reinaldo Paranaíba Vilela Alves
contributor_str_mv Barros, Nathan de Oliveira
Roland, Fábio
Pacheco, Felipe Siqueira
Mendonça, Raquel Fernandes
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA
topic CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA
Reservoirs
Carbon dioxide
Methane
dc.subject.por.fl_str_mv Reservoirs
Carbon dioxide
Methane
description -
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-08-30T12:31:54Z
dc.date.available.fl_str_mv 2017-08-30T12:31:54Z
2018-06-01
dc.date.issued.fl_str_mv 2017-02-22
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://repositorio.ufjf.br/jspui/handle/ufjf/5656
url https://repositorio.ufjf.br/jspui/handle/ufjf/5656
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Federal de Juiz de Fora (UFJF)
dc.publisher.program.fl_str_mv Programa de Pós-graduação em Ecologia
dc.publisher.initials.fl_str_mv UFJF
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv ICB – Instituto de Ciências Biológicas
publisher.none.fl_str_mv Universidade Federal de Juiz de Fora (UFJF)
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFJF
instname:Universidade Federal de Juiz de Fora (UFJF)
instacron:UFJF
instname_str Universidade Federal de Juiz de Fora (UFJF)
instacron_str UFJF
institution UFJF
reponame_str Repositório Institucional da UFJF
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