Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ateliê Geográfico |
Texto Completo: | https://revistas.ufg.br/atelie/article/view/64590 |
Resumo: | The study aimed to evaluate the biophysical susceptibility to flooding of the Piracuruca River Hydrographic Sub-basin, based on four environmental indicators - lithological permeability, average relief gradient, circularity index and vegetation index adjusted to the soil (SAVI) – which have been integrated using map algebras. The research employed bibliographic and cartographic survey, use of Geographic Information Systems and map algebra to build the biophysical susceptibility index to floods. Through the study it was inferred that in the Piracuruca River Sub-basin the following prevails: high permeability, which occurs in 58.8% of its area; relief with a flat slope of 58.4%; micro basins with elongated shape and general circularity index ≤ 0.35, which represents a low probability of rapid flooding; vegetation with low photosynthetic activity was identified in 49% of the area. These integrated variables indicate that the average biophysical susceptibility to floods predominates, occurring in 59.5% of the Sub-basin, which indicates the need for further studies to understand the vulnerability of the located population and the creation of strategies to cope with floods. Keywords: Hydrographic Basin; Natural Disaster; Map Algebra; Biophysical Susceptibility. |
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Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basinSusceptibilidad biofísica a las inundaciones en la Subcuenca Hidrográfica del río PiracurucaSuscetibilidade biofísica a inundações da Sub-bacia Hidrográfica do rio PiracurucaThe study aimed to evaluate the biophysical susceptibility to flooding of the Piracuruca River Hydrographic Sub-basin, based on four environmental indicators - lithological permeability, average relief gradient, circularity index and vegetation index adjusted to the soil (SAVI) – which have been integrated using map algebras. The research employed bibliographic and cartographic survey, use of Geographic Information Systems and map algebra to build the biophysical susceptibility index to floods. Through the study it was inferred that in the Piracuruca River Sub-basin the following prevails: high permeability, which occurs in 58.8% of its area; relief with a flat slope of 58.4%; micro basins with elongated shape and general circularity index ≤ 0.35, which represents a low probability of rapid flooding; vegetation with low photosynthetic activity was identified in 49% of the area. These integrated variables indicate that the average biophysical susceptibility to floods predominates, occurring in 59.5% of the Sub-basin, which indicates the need for further studies to understand the vulnerability of the located population and the creation of strategies to cope with floods. Keywords: Hydrographic Basin; Natural Disaster; Map Algebra; Biophysical Susceptibility.El estudio tuvo como objetivo evaluar la susceptibilidad biofísica a las inundaciones de la Subcuenca Hidrográfica del río Piracuruca, en base a cuatro indicadores ambientales – permeabilidad litológica, gradiente de alivio promedio, índice de circularidad y índice de vegetación ajustado al suelo (SAVI) – que se han integrado por medio de álgebras de mapas. La investigación empleó encuestas bibliográficas y cartográficas, uso de Sistemas de Información Geográfica y álgebra de mapas para construir el índice de susceptibilidad biofísica a las inundaciones. A través del estudio se infirió que en la Subcuenca del río Piracuruca prevalece lo siguiente: alta permeabilidad, que ocurre en 58.8% de su área; relieve con una pediente plana de 58.4%; microcuencas con forma alargada e índice de circularidad general ≤ 0.35, lo que representa una baja probabilidad de inundación rápida; vegetación con baja actividad fotosintética identificada en el 49% del área. Estas variables integradas indican que predomina la susceptibilidad biofísica promedio a las inundaciones, que ocurre en el 59.5% de la Subcuenca, lo que indica la necesidad de más estudios para comprender la vulnerabilidad de la población localizada y la creación de estrategias para hacer frente a las inundaciones. Palabras clave: Cuenca hidrográfica; Desastre natural; Álgebra de mapas; Biofísica Susceptibilidad.O estudo objetivou realizar avaliação da suscetibilidade biofísica a inundações da Sub-bacia Hidrográfica do rio Piracuruca, a partir de quatro indicadores ambientais – permeabilidade litológica, declividade média do relevo, índice de circularidade e índice de vegetação ajustado ao solo (SAVI) – que foram integrados por meio de álgebras de mapas. A pesquisa empregou levantamento bibliográfico e cartográfico, uso de Sistemas de Informação Geográfica e álgebra de mapas para construção do índice de suscetibilidade biofísica a inundações. Através do estudo inferiu-se que na Sub-bacia do rio Piracuruca prevalece: permeabilidade alta, que ocorre em 58,8% de sua área; relevo com declividade plana em 58,4%; microbacias com forma alongada e índice de circularidade geral ≤ 0,35, que representa baixa probabilidade a inundações rápidas; vegetação com baixa atividade fotossintética identificada em 49% da área. Essas variáveis integradas apontam que predomina média suscetibilidade biofísica a inundações, com ocorrência em 59,5% da Sub-bacia, que indica necessidade de estudos posteriores para conhecimento da vulnerabilidade da população situada e criação de estratégias para convivência com as inundações. Palavras-chave: Bacia Hidrográfica; Desastre Natural; Álgebra de mapas; Suscetibilidade biofísica.Universidade Federal de Goiás2021-04-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufg.br/atelie/article/view/6459010.5216/ag.v15i1.64590Ateliê Geográfico Journal; Vol. 15 No. 1 (2021); 266-285Ateliê Geográfico; Vol. 15 Núm. 1 (2021); 266-285Ateliê Geográfico; v. 15 n. 1 (2021); 266-2851982-1956reponame:Ateliê Geográficoinstname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/atelie/article/view/64590/36965Copyright (c) 2021 Ateliê Geográficoinfo:eu-repo/semantics/openAccessdos Santos, Francílio de AmorimSilveira Mendes, Lúcia MariaBrito da Cruz, Maria Lúcia2021-07-27T23:58:11Zoai:ojs.revistas.ufg.br:article/64590Revistahttps://www.revistas.ufg.br/ateliePUBhttps://www.revistas.ufg.br/atelie/oairevista.ateliegeografico@gmail.com || deniscastilho@hotmail.com || laracristineufg@yahoo.com.br1982-19561982-1956opendoar:2024-05-21T19:55:36.275739Ateliê Geográfico - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin Susceptibilidad biofísica a las inundaciones en la Subcuenca Hidrográfica del río Piracuruca Suscetibilidade biofísica a inundações da Sub-bacia Hidrográfica do rio Piracuruca |
title |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin |
spellingShingle |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin dos Santos, Francílio de Amorim |
title_short |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin |
title_full |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin |
title_fullStr |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin |
title_full_unstemmed |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin |
title_sort |
Biophysical susceptibility to flooding in the Piracuruca River Hydrographic Sub-basin |
author |
dos Santos, Francílio de Amorim |
author_facet |
dos Santos, Francílio de Amorim Silveira Mendes, Lúcia Maria Brito da Cruz, Maria Lúcia |
author_role |
author |
author2 |
Silveira Mendes, Lúcia Maria Brito da Cruz, Maria Lúcia |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
dos Santos, Francílio de Amorim Silveira Mendes, Lúcia Maria Brito da Cruz, Maria Lúcia |
description |
The study aimed to evaluate the biophysical susceptibility to flooding of the Piracuruca River Hydrographic Sub-basin, based on four environmental indicators - lithological permeability, average relief gradient, circularity index and vegetation index adjusted to the soil (SAVI) – which have been integrated using map algebras. The research employed bibliographic and cartographic survey, use of Geographic Information Systems and map algebra to build the biophysical susceptibility index to floods. Through the study it was inferred that in the Piracuruca River Sub-basin the following prevails: high permeability, which occurs in 58.8% of its area; relief with a flat slope of 58.4%; micro basins with elongated shape and general circularity index ≤ 0.35, which represents a low probability of rapid flooding; vegetation with low photosynthetic activity was identified in 49% of the area. These integrated variables indicate that the average biophysical susceptibility to floods predominates, occurring in 59.5% of the Sub-basin, which indicates the need for further studies to understand the vulnerability of the located population and the creation of strategies to cope with floods. Keywords: Hydrographic Basin; Natural Disaster; Map Algebra; Biophysical Susceptibility. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-20 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/atelie/article/view/64590 10.5216/ag.v15i1.64590 |
url |
https://revistas.ufg.br/atelie/article/view/64590 |
identifier_str_mv |
10.5216/ag.v15i1.64590 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/atelie/article/view/64590/36965 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Ateliê Geográfico info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Ateliê Geográfico |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Ateliê Geográfico Journal; Vol. 15 No. 1 (2021); 266-285 Ateliê Geográfico; Vol. 15 Núm. 1 (2021); 266-285 Ateliê Geográfico; v. 15 n. 1 (2021); 266-285 1982-1956 reponame:Ateliê Geográfico instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Ateliê Geográfico |
collection |
Ateliê Geográfico |
repository.name.fl_str_mv |
Ateliê Geográfico - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
revista.ateliegeografico@gmail.com || deniscastilho@hotmail.com || laracristineufg@yahoo.com.br |
_version_ |
1799874837312700416 |