Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/15118 |
Resumo: | Ecosystems interact with the atmosphere through, mass and energy superficial fluxes, therefore understanding the properties of these fluxes in different ecosystems is very important for improving knowledge about biophysical processes that control them and the surface-atmosphere interaction. In South of Brazil, two important biomes are present: the Pampa biome and the Atlantic Forest biome, which have been undergoing a great anthropogenization of their areas. In this thesis an article was dedicated to study a typical ecosystem in each biome. In Pampa, in one of its soil uses, rice areas had their superficial fluxes monitored by eddy covariance technique (EC) for five years. So, this indicates, during the experiment, the ecosystem worked as carbon dioxide absorber. In terms of energy balance, the ecosystem showing low values of Bowen ratio. The Soil water evaporation was the dominant component of the evapotranspiration fluxes. Carbon dioxide flux seasonality is connected to leaf area index. Of its components, ecosystem respiration (RE) responds to temperature seasonality and gross primary production (GPP) depends to solar radiation variability. The second ecosystem monitored by EC technique was Araucaria forest which is part of Mata Atlantica biome. In this study, the forest was stratified in two levels, the overstory and the understory layers that present distinct contributions to total ecosystem fluxes. The ecosystem as a whole absorbed carbon dioxide during the experiment, in which the overstory was responsible by absorption via GPP and the understory was emitter of carbon dioxide via RE. Energy balance in this forest indicated that latent heat flux was the dominant component in energy balance, being the highest contribution to evapotranspiration fluxes from the overstory. |
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Análise das componentes dos fluxos superficiais de massa e energia na região Sul do BrasilAnalysis of components of surface mass and energy flux in the Southern region of BrazilFloresta de araucáriaArroz irrigadoBalanço de energiaEvapotranspiraçãoFluxo de dióxido de carbonoAraucaria forestIrrigated riceEvapotranspirationEnergy balanceCarbon dioxide fluxCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIAEcosystems interact with the atmosphere through, mass and energy superficial fluxes, therefore understanding the properties of these fluxes in different ecosystems is very important for improving knowledge about biophysical processes that control them and the surface-atmosphere interaction. In South of Brazil, two important biomes are present: the Pampa biome and the Atlantic Forest biome, which have been undergoing a great anthropogenization of their areas. In this thesis an article was dedicated to study a typical ecosystem in each biome. In Pampa, in one of its soil uses, rice areas had their superficial fluxes monitored by eddy covariance technique (EC) for five years. So, this indicates, during the experiment, the ecosystem worked as carbon dioxide absorber. In terms of energy balance, the ecosystem showing low values of Bowen ratio. The Soil water evaporation was the dominant component of the evapotranspiration fluxes. Carbon dioxide flux seasonality is connected to leaf area index. Of its components, ecosystem respiration (RE) responds to temperature seasonality and gross primary production (GPP) depends to solar radiation variability. The second ecosystem monitored by EC technique was Araucaria forest which is part of Mata Atlantica biome. In this study, the forest was stratified in two levels, the overstory and the understory layers that present distinct contributions to total ecosystem fluxes. The ecosystem as a whole absorbed carbon dioxide during the experiment, in which the overstory was responsible by absorption via GPP and the understory was emitter of carbon dioxide via RE. Energy balance in this forest indicated that latent heat flux was the dominant component in energy balance, being the highest contribution to evapotranspiration fluxes from the overstory.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESOs ecossistemas interagem com a atmosfera por meio dos fluxos superficiais de massa e energia, por isso compreender as propriedades destes fluxos nos distintos ecossistemas terrestres é de suma importância para aprimoramento do conhecimento acerca dos processos biofísicos que controlam a interação superfície-atmosfera. No Sul do Brasil, dois importantes biomas naturais são característicos: o bioma Pampa e o bioma Mata Atlântica, os quais vem sofrendo uma intensa antropogenização de suas áreas nas últimas décadas. Nesta tese são apresentados dois artigos científicos, cada um dedicado ao estudo das interações superfície-atmosfera de um ecossistema característico de cada bioma. Para o Bioma Pampa, foi estudada uma área de cultivo de arroz irrigado por inundação na região central do estado do Rio Grande do Sul, onde os fluxos superficiais de massa e energia foram monitorados por meio da técnica de covariância dos vórtices (EC) durante cinco anos. Os resultados indicam que, durante o experimento, o ecossistema funcionou como absorvedor de dióxido de carbono. A sazonalidade do fluxo de dióxido de carbono está atrelada a cobertura do solo. A respiração do ecossistema (RE) responde à sazonalidade do índice de área foliar e a temperatura do ar, enquanto a produção primária bruta (GPP) à variabilidade do índice de área foliar e a radiação solar. A área apresenta baixos valores da razão de Bowen, com valores mais elevados no pousio pela ausência da lâmina d’água e da cultura agrícola. A componente da evaporação da água no solo representou 53% da evapotranspiração ao longo do experimento. Para a Mata Atlântica, o ecossistema monitorado pela técnica EC foi à floresta de Araucária no sul do estado do Paraná. Neste estudo a floresta foi estratificada em dois níveis, o estrato superior e o inferior, os quais apresentam contribuições distintas no fluxo total do ecossistema. O ecossistema como um todo absorveu dióxido de carbono ao longo do experimento, sendo o estrato superior responsável pela absorção, possuindo a maior participação no GPP total do ecossistema, e o estrato inferior pela emissão de dióxido de carbono, o qual teve maior representatividade no total da RE. O balanço de energia nesta floresta indicou que o fluxo de energia na forma de calor latente foi a componente dominante, sendo a maior contribuição para a evapotranspiração do ecossistema provenientes do extrato superior.Universidade Federal de Santa MariaBrasilMeteorologiaUFSMPrograma de Pós-Graduação em MeteorologiaCentro de Ciências Naturais e ExatasRoberti, Débora Reginahttp://lattes.cnpq.br/6952076109453197Araújo, Alessandro Carioca dehttp://lattes.cnpq.br/6188087583954899Zeri, Luis Marcelo de Mattoshttp://lattes.cnpq.br/5423195235956450Carneiro, Janaína Viáriohttp://lattes.cnpq.br/7084943535940858Teichrieb, Claudio Albertohttp://lattes.cnpq.br/9616939649732127Diaz, Marcelo Bortoluzzi2018-12-17T19:12:55Z2018-12-17T19:12:55Z2018-03-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/15118porAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-07-04T13:46:18Zoai:repositorio.ufsm.br:1/15118Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-07-04T13:46:18Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil Analysis of components of surface mass and energy flux in the Southern region of Brazil |
title |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil |
spellingShingle |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil Diaz, Marcelo Bortoluzzi Floresta de araucária Arroz irrigado Balanço de energia Evapotranspiração Fluxo de dióxido de carbono Araucaria forest Irrigated rice Evapotranspiration Energy balance Carbon dioxide flux CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA |
title_short |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil |
title_full |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil |
title_fullStr |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil |
title_full_unstemmed |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil |
title_sort |
Análise das componentes dos fluxos superficiais de massa e energia na região Sul do Brasil |
author |
Diaz, Marcelo Bortoluzzi |
author_facet |
Diaz, Marcelo Bortoluzzi |
author_role |
author |
dc.contributor.none.fl_str_mv |
Roberti, Débora Regina http://lattes.cnpq.br/6952076109453197 Araújo, Alessandro Carioca de http://lattes.cnpq.br/6188087583954899 Zeri, Luis Marcelo de Mattos http://lattes.cnpq.br/5423195235956450 Carneiro, Janaína Viário http://lattes.cnpq.br/7084943535940858 Teichrieb, Claudio Alberto http://lattes.cnpq.br/9616939649732127 |
dc.contributor.author.fl_str_mv |
Diaz, Marcelo Bortoluzzi |
dc.subject.por.fl_str_mv |
Floresta de araucária Arroz irrigado Balanço de energia Evapotranspiração Fluxo de dióxido de carbono Araucaria forest Irrigated rice Evapotranspiration Energy balance Carbon dioxide flux CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA |
topic |
Floresta de araucária Arroz irrigado Balanço de energia Evapotranspiração Fluxo de dióxido de carbono Araucaria forest Irrigated rice Evapotranspiration Energy balance Carbon dioxide flux CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA |
description |
Ecosystems interact with the atmosphere through, mass and energy superficial fluxes, therefore understanding the properties of these fluxes in different ecosystems is very important for improving knowledge about biophysical processes that control them and the surface-atmosphere interaction. In South of Brazil, two important biomes are present: the Pampa biome and the Atlantic Forest biome, which have been undergoing a great anthropogenization of their areas. In this thesis an article was dedicated to study a typical ecosystem in each biome. In Pampa, in one of its soil uses, rice areas had their superficial fluxes monitored by eddy covariance technique (EC) for five years. So, this indicates, during the experiment, the ecosystem worked as carbon dioxide absorber. In terms of energy balance, the ecosystem showing low values of Bowen ratio. The Soil water evaporation was the dominant component of the evapotranspiration fluxes. Carbon dioxide flux seasonality is connected to leaf area index. Of its components, ecosystem respiration (RE) responds to temperature seasonality and gross primary production (GPP) depends to solar radiation variability. The second ecosystem monitored by EC technique was Araucaria forest which is part of Mata Atlantica biome. In this study, the forest was stratified in two levels, the overstory and the understory layers that present distinct contributions to total ecosystem fluxes. The ecosystem as a whole absorbed carbon dioxide during the experiment, in which the overstory was responsible by absorption via GPP and the understory was emitter of carbon dioxide via RE. Energy balance in this forest indicated that latent heat flux was the dominant component in energy balance, being the highest contribution to evapotranspiration fluxes from the overstory. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-17T19:12:55Z 2018-12-17T19:12:55Z 2018-03-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/15118 |
url |
http://repositorio.ufsm.br/handle/1/15118 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Meteorologia UFSM Programa de Pós-Graduação em Meteorologia Centro de Ciências Naturais e Exatas |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Meteorologia UFSM Programa de Pós-Graduação em Meteorologia Centro de Ciências Naturais e Exatas |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
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1805922084062232576 |