Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental
Ano de defesa: | 2023 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Goiás
|
Programa de Pós-Graduação: |
Programa de Pós-graduação em Ciências Ambientais (PRPG)
|
Departamento: |
Pró-Reitoria de Pós-graduação (PRPG)
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.bc.ufg.br/tede/handle/tede/13120 |
Resumo: | The Araguaia River represents the last and most important free-flowing river located in the Cerrado-Amazon ecotone. The increasing human influence on this river system poses an imminent threat to the valuable ecosystem services it provides. Therefore, it is essential to produce knowledge about the physical structure and functioning of this river, which serves as a basis for a significant portion of the biome's biodiversity. This thesis contributes to the fields of Geomorphology and Hydrology of large tropical rivers, bringing new discoveries that enrich the existing body of research on the Araguaia system. In the first paper, we conducted an assessment of the planform morphology changes in the upper-middle course between 2001 and 2018, expanding the temporal data series on the evolution of macroforms to a 53-year period. We found that the current transition phase of the river, characterized by the contraction of the channel's active zone and the partial loss of braiding due to a higher representativeness of the islands, is likely related to changes in the hydro-sedimentary regime over the last two decades. Based on a set of channel and floodplain geomorphological variables, in the second paper we developed a methodology to subdivide the middle Araguaia into 19 distinct reaches (R1-R19), which were further clustered into five major segments (SI-SV). We found that changes in valley gradient have a significant influence on the morphology of SI, SIII, and SIV, while the inflow of important tributaries and the nature of the valley floor are the main controlling factors for the fluvial style in SII and SV, respectively. This large-scale planimetric characterization of the river's middle course complements previous geomorphic studies, providing insights into the morphological diversity and sensitivity of each segment to environmental changes. In the third paper, we present a new approach to the existing classifications in the literature of flood events in the middle Araguaia. Small-scale floods (types B and D2) exhibit distinct attenuation patterns associated with the occurrence of drier years (D2). The attenuation of intermediate-scale floods (types C and D1) and large-scale floods (type A) is influenced by the magnitude of maximum flows at the upstream river gauge station, with no statistical significance for the influence of tributaries on peak changes. Flood hydrograph properties were found to respond to the regional geomorphological organization of the system. When considering the segments proposed in the second paper, we observed that the nature of the valley floor plays a central role in the efficient transport of floods in SI, SIV, and SV. The wide and complex floodplain in SII significantly influences the storage capacity, allowing for gradual dissipation of floodwater excess and peak attenuation. Water diversion to the old system (Rio Javaés) exhibited unique transfer patterns under different flow conditions, resulting in overall annual losses and gains in SIII. The methodologies and disciplinary knowledge produced in this thesis can support future interdisciplinary work and investigations in the context of environmental sciences. |
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Biblioteca Digital de Teses e Dissertações da UFG |
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Latrubesse, Edgardo Manuelhttp://lattes.cnpq.br/7008643054366282Bayer, Maximilianohttp://lattes.cnpq.br/4552593148328465Latrubesse, Edgardo ManuelFilizola Junior, Naziano PantojaZancopé, Márcio Henrique de CamposFerreira, Manuel EduardoFaria, Karla Maria Silva dehttp://lattes.cnpq.br/5614422328921812Suizu, Taina Medeiros2023-11-06T11:29:10Z2023-11-06T11:29:10Z2023-08-25SUIZU, T. M. Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental. 2023. 109 f. Tese (Doutorado em Ciências Ambientais) - Pró-Reitoria de Pós-graduação, Universidade Federal de Goiás, Goiânia, 2023.http://repositorio.bc.ufg.br/tede/handle/tede/13120The Araguaia River represents the last and most important free-flowing river located in the Cerrado-Amazon ecotone. The increasing human influence on this river system poses an imminent threat to the valuable ecosystem services it provides. Therefore, it is essential to produce knowledge about the physical structure and functioning of this river, which serves as a basis for a significant portion of the biome's biodiversity. This thesis contributes to the fields of Geomorphology and Hydrology of large tropical rivers, bringing new discoveries that enrich the existing body of research on the Araguaia system. In the first paper, we conducted an assessment of the planform morphology changes in the upper-middle course between 2001 and 2018, expanding the temporal data series on the evolution of macroforms to a 53-year period. We found that the current transition phase of the river, characterized by the contraction of the channel's active zone and the partial loss of braiding due to a higher representativeness of the islands, is likely related to changes in the hydro-sedimentary regime over the last two decades. Based on a set of channel and floodplain geomorphological variables, in the second paper we developed a methodology to subdivide the middle Araguaia into 19 distinct reaches (R1-R19), which were further clustered into five major segments (SI-SV). We found that changes in valley gradient have a significant influence on the morphology of SI, SIII, and SIV, while the inflow of important tributaries and the nature of the valley floor are the main controlling factors for the fluvial style in SII and SV, respectively. This large-scale planimetric characterization of the river's middle course complements previous geomorphic studies, providing insights into the morphological diversity and sensitivity of each segment to environmental changes. In the third paper, we present a new approach to the existing classifications in the literature of flood events in the middle Araguaia. Small-scale floods (types B and D2) exhibit distinct attenuation patterns associated with the occurrence of drier years (D2). The attenuation of intermediate-scale floods (types C and D1) and large-scale floods (type A) is influenced by the magnitude of maximum flows at the upstream river gauge station, with no statistical significance for the influence of tributaries on peak changes. Flood hydrograph properties were found to respond to the regional geomorphological organization of the system. When considering the segments proposed in the second paper, we observed that the nature of the valley floor plays a central role in the efficient transport of floods in SI, SIV, and SV. The wide and complex floodplain in SII significantly influences the storage capacity, allowing for gradual dissipation of floodwater excess and peak attenuation. Water diversion to the old system (Rio Javaés) exhibited unique transfer patterns under different flow conditions, resulting in overall annual losses and gains in SIII. The methodologies and disciplinary knowledge produced in this thesis can support future interdisciplinary work and investigations in the context of environmental sciences.O Rio Araguaia representa o último e mais importante rio de fluxo livre localizado no ecótono Cerrado-Amazônia. A crescente influência humana sobre esse sistema fluvial constitui uma ameaça iminente aos valiosos serviços ecossistêmicos por ele fornecidos. Assim, torna-se imprescindível a produção do conhecimento sobre a estrutura física e a função desse rio, que é base para a ocorrência de porção significativa da biodiversidade do bioma. A presente tese contribui para os campos da Geomorfologia e Hidrologia de grandes rios tropicais, trazendo novas descobertas que enriquecem o corpo de pesquisa existente sobre o sistema Araguaia. No primeiro artigo, realizamos uma avaliação das mudanças na morfologia bidimensional do médio-curso superior entre 2001 e 2018, ampliando a série temporal dos dados sobre a evolução das macroformas para um período de 53 anos. Verificamos que a atual fase de transição do rio, marcada pela contração da zona ativa do canal e pela perda parcial das características de entrelaçamento, devido ao aumento da representatividade das ilhas, provavelmente está relacionada às mudanças no regime hidrossedimentar ocorridas nas últimas duas décadas. Com base em um conjunto de variáveis geomorfológicas do canal e da planície de inundação, no segundo artigo foi desenvolvida uma metodologia para subdividir o médio Araguaia em 19 trechos distintos (R1-R19), os quais foram estatisticamente agrupados em cinco grandes segmentos fluviais (SI-SV). Constatou-se que as mudanças no gradiente do vale exercem uma influência significativa na morfologia de SI, SIII e SIV, enquanto a entrada de afluentes importantes e a natureza do vale constituem os principais fatores de controle do estilo fluvial em SII e SV, respectivamente. Essa caracterização planialtimétrica em larga escala do médio curso do rio complementa estudos geomorfológicos anteriores, fornecendo insights sobre a diversidade morfológica e a sensibilidade de cada segmento às mudanças ambientais. No terceiro artigo, apresentamos uma nova abordagem para as classificações existentes na literatura dos eventos de inundação no médio Araguaia. As inundações de pequena escala (tipos B e D2) demonstram padrões de atenuação distintos associados à ocorrência de anos mais secos (D2). A atenuação das inundações de escala intermediária (Tipos C e D1) e grande escala (tipo A) é influenciada pela magnitude das vazões máximas na estação fluviométrica a montante, sem significância estatística para a influência dos afluentes nas mudanças do pico. As propriedades do hidrograma de inundação mostraram responder à organização geomorfológica regional do sistema. Ao considerar os segmentos propostos no segundo artigo, observamos que a natureza do vale desempenha um papel central na transmissão eficiente das inundações em SI, SIV e SV. A ampla e complexa planície de inundação em SII influencia significativamente a capacidade de armazenamento, permitindo a dissipação gradual do excesso de água das inundações e a atenuação dos picos. O desvio de água para o antigo sistema (Rio Javaés) exibiu padrões únicos de transferência em diferentes condições de fluxo, resultando em perdas e ganhos anuais globais em SIII. As metodologias e os conhecimentos disciplinares gerados nesta tese poderão subsidiar futuros trabalhos e investigações interdisciplinares no contexto das ciências ambientais.Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2023-11-03T18:26:16Z workflow start=Step: editstep - action:claimaction No. of bitstreams: 2 license_rdf: 805 bytes, checksum: 4460e5956bc1d1639be9ae6146a50347 (MD5) Tese - Taina Medeiros Suizu - 2023.pdf: 8093210 bytes, checksum: 4b18d17b5dc51df8e1c2e606008c8775 (MD5)Step: editstep - action:editaction Approved for entry into archive by Luciana Ferreira(lucgeral@gmail.com) on 2023-11-06T11:29:10Z (GMT)Made available in DSpace on 2023-11-06T11:29:10Z (GMT). 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dc.title.none.fl_str_mv |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
dc.title.alternative.eng.fl_str_mv |
Morphodynamics and hydro-geomorphology of the middle Araguaia river: investigation of patterns and physical controls and their relevance for environmental analysis |
title |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
spellingShingle |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental Suizu, Taina Medeiros Grandes rios tropicais Bioma cerrado Resposta geomórfica Segmentação fluvial Abordagem hidrogeomórfica Gestão fluvial Large tropical rivers Cerrado biome Geomorphic response Fluvial segmentation Hydrogeomorphic approach River management ENGENHARIAS::ENGENHARIA SANITARIA::SANEAMENTO AMBIENTAL::QUALIDADE DO AR, DAS AGUAS E DO SOLO |
title_short |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
title_full |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
title_fullStr |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
title_full_unstemmed |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
title_sort |
Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental |
author |
Suizu, Taina Medeiros |
author_facet |
Suizu, Taina Medeiros |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Latrubesse, Edgardo Manuel |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7008643054366282 |
dc.contributor.advisor-co1.fl_str_mv |
Bayer, Maximiliano |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/4552593148328465 |
dc.contributor.referee1.fl_str_mv |
Latrubesse, Edgardo Manuel |
dc.contributor.referee2.fl_str_mv |
Filizola Junior, Naziano Pantoja |
dc.contributor.referee3.fl_str_mv |
Zancopé, Márcio Henrique de Campos |
dc.contributor.referee4.fl_str_mv |
Ferreira, Manuel Eduardo |
dc.contributor.referee5.fl_str_mv |
Faria, Karla Maria Silva de |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5614422328921812 |
dc.contributor.author.fl_str_mv |
Suizu, Taina Medeiros |
contributor_str_mv |
Latrubesse, Edgardo Manuel Bayer, Maximiliano Latrubesse, Edgardo Manuel Filizola Junior, Naziano Pantoja Zancopé, Márcio Henrique de Campos Ferreira, Manuel Eduardo Faria, Karla Maria Silva de |
dc.subject.por.fl_str_mv |
Grandes rios tropicais Bioma cerrado Resposta geomórfica Segmentação fluvial Abordagem hidrogeomórfica Gestão fluvial |
topic |
Grandes rios tropicais Bioma cerrado Resposta geomórfica Segmentação fluvial Abordagem hidrogeomórfica Gestão fluvial Large tropical rivers Cerrado biome Geomorphic response Fluvial segmentation Hydrogeomorphic approach River management ENGENHARIAS::ENGENHARIA SANITARIA::SANEAMENTO AMBIENTAL::QUALIDADE DO AR, DAS AGUAS E DO SOLO |
dc.subject.eng.fl_str_mv |
Large tropical rivers Cerrado biome Geomorphic response Fluvial segmentation Hydrogeomorphic approach River management |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA SANITARIA::SANEAMENTO AMBIENTAL::QUALIDADE DO AR, DAS AGUAS E DO SOLO |
description |
The Araguaia River represents the last and most important free-flowing river located in the Cerrado-Amazon ecotone. The increasing human influence on this river system poses an imminent threat to the valuable ecosystem services it provides. Therefore, it is essential to produce knowledge about the physical structure and functioning of this river, which serves as a basis for a significant portion of the biome's biodiversity. This thesis contributes to the fields of Geomorphology and Hydrology of large tropical rivers, bringing new discoveries that enrich the existing body of research on the Araguaia system. In the first paper, we conducted an assessment of the planform morphology changes in the upper-middle course between 2001 and 2018, expanding the temporal data series on the evolution of macroforms to a 53-year period. We found that the current transition phase of the river, characterized by the contraction of the channel's active zone and the partial loss of braiding due to a higher representativeness of the islands, is likely related to changes in the hydro-sedimentary regime over the last two decades. Based on a set of channel and floodplain geomorphological variables, in the second paper we developed a methodology to subdivide the middle Araguaia into 19 distinct reaches (R1-R19), which were further clustered into five major segments (SI-SV). We found that changes in valley gradient have a significant influence on the morphology of SI, SIII, and SIV, while the inflow of important tributaries and the nature of the valley floor are the main controlling factors for the fluvial style in SII and SV, respectively. This large-scale planimetric characterization of the river's middle course complements previous geomorphic studies, providing insights into the morphological diversity and sensitivity of each segment to environmental changes. In the third paper, we present a new approach to the existing classifications in the literature of flood events in the middle Araguaia. Small-scale floods (types B and D2) exhibit distinct attenuation patterns associated with the occurrence of drier years (D2). The attenuation of intermediate-scale floods (types C and D1) and large-scale floods (type A) is influenced by the magnitude of maximum flows at the upstream river gauge station, with no statistical significance for the influence of tributaries on peak changes. Flood hydrograph properties were found to respond to the regional geomorphological organization of the system. When considering the segments proposed in the second paper, we observed that the nature of the valley floor plays a central role in the efficient transport of floods in SI, SIV, and SV. The wide and complex floodplain in SII significantly influences the storage capacity, allowing for gradual dissipation of floodwater excess and peak attenuation. Water diversion to the old system (Rio Javaés) exhibited unique transfer patterns under different flow conditions, resulting in overall annual losses and gains in SIII. The methodologies and disciplinary knowledge produced in this thesis can support future interdisciplinary work and investigations in the context of environmental sciences. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-11-06T11:29:10Z |
dc.date.available.fl_str_mv |
2023-11-06T11:29:10Z |
dc.date.issued.fl_str_mv |
2023-08-25 |
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.citation.fl_str_mv |
SUIZU, T. M. Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental. 2023. 109 f. Tese (Doutorado em Ciências Ambientais) - Pró-Reitoria de Pós-graduação, Universidade Federal de Goiás, Goiânia, 2023. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/13120 |
identifier_str_mv |
SUIZU, T. M. Morfodinâmica e hidro-geomorfologia do médio rio Araguaia: investigação dos padrões e dos controles físicos e sua relevância para a análise ambiental. 2023. 109 f. Tese (Doutorado em Ciências Ambientais) - Pró-Reitoria de Pós-graduação, Universidade Federal de Goiás, Goiânia, 2023. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/13120 |
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por |
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por |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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Universidade Federal de Goiás |
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Programa de Pós-graduação em Ciências Ambientais (PRPG) |
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UFG |
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Brasil |
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Pró-Reitoria de Pós-graduação (PRPG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
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Biblioteca Digital de Teses e Dissertações da UFG |
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Biblioteca Digital de Teses e Dissertações da UFG |
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Biblioteca Digital de Teses e Dissertações da UFG - Universidade Federal de Goiás (UFG) |
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