Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Geografia (Londrina) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36619 |
Resumo: | Environmental vulnerability is defined as any susceptibility of the environment to a potential impact caused by any anthropic use. The basin located in the northeast region of Maranhão state occupies an area of 5,235.63 square kilometers. The study development of the environmental vulnerability of this basin is important because it serves as a subsidy to environmental planning aiming at the sustainability of water resources. The paper objective was to characterize the environmental vulnerability of the Rio Preto basin, considering soil integration, slope, geological structure, and land use and cover based on its stability in relation to morphogenesis and pedogenesis aiming to contribute to the erosion risk mitigation. For this, geoprocessing techniques were used, which allowed the establishment of three types of environmental units: stable environments, where pedogenesis predominates; intergrades mean, in which there is a balance between pedogenesis and morphogenesis; and the highly unstable, where morphogenesis predominates, to determine the intensity and distribution of vulnerability in the basin. It was found that 33.59% of the area is vulnerable, 35.61% are moderately vulnerable and 30.80% are represented by stable areas. It was found that the use of land for soybean and eucalyptus cultivation in the south of the basin increased the degree of environmental vulnerability, as it intensifies erosive action in soils. |
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Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – BrazilCaracterización de la Vulnerabilidad Ambiental en la Cuenca Hidrográfica de Rio Preto, Maranhão – BrasilCaracterização da Vulnerabilidade Ambiental na Bacia Hidrográfica do Rio Preto, Maranhão – BrasilEnvironmental vulnerabilityEnvironmental unitsRio Preto.Vulnerabilidad ambientalUnidades ambientalesRio Preto.Vulnerabilidade ambientalUnidades ambientaisRio Preto.Environmental vulnerability is defined as any susceptibility of the environment to a potential impact caused by any anthropic use. The basin located in the northeast region of Maranhão state occupies an area of 5,235.63 square kilometers. The study development of the environmental vulnerability of this basin is important because it serves as a subsidy to environmental planning aiming at the sustainability of water resources. The paper objective was to characterize the environmental vulnerability of the Rio Preto basin, considering soil integration, slope, geological structure, and land use and cover based on its stability in relation to morphogenesis and pedogenesis aiming to contribute to the erosion risk mitigation. For this, geoprocessing techniques were used, which allowed the establishment of three types of environmental units: stable environments, where pedogenesis predominates; intergrades mean, in which there is a balance between pedogenesis and morphogenesis; and the highly unstable, where morphogenesis predominates, to determine the intensity and distribution of vulnerability in the basin. It was found that 33.59% of the area is vulnerable, 35.61% are moderately vulnerable and 30.80% are represented by stable areas. It was found that the use of land for soybean and eucalyptus cultivation in the south of the basin increased the degree of environmental vulnerability, as it intensifies erosive action in soils.La vulnerabilidad ambiental es definida como cualquier susceptibilidad del ambiente a un impacto potencial provocado por un uso antrópico cualquiera. La cuenca localizada en la región nordeste del estado de Maranhão ocupa un área de 5.235,63 kilómetros cuadrados. El desenvolvimiento del estudio de la vulnerabilidad ambiental de esta cuenca es importante, pues sirve de subsidio a la planificación ambiental visando la sostenibilidad de los recursos hídricos. El objetivo de este trabajo fue caracterizar la vulnerabilidad ambiental de la cuenta hidrográfica de Rio Preto, considerando la integración de los suelos, declividad, estructura geológica y uso de cobertura de la tierra teniendo como base su estabilidad en relación a la morfogénesis y la pedogénesis, deseando contribuir en la mitigación del riesgo a la erosión. Para tal, se utilizaron técnicas de geoprocesamiento, que permitieron establecer tres tipos de unidades ambientales: medios estables, donde predomina la pedogénesis; medios intergrades, en el cual hay equilibrio entre pedogénesis y morfogénesis; y los fuertemente estables, donde predomina la morfogénesis, para así determinar la intensidad y la distribución de la vulnerabilidad en la cuenca. Se verificó que 33,59% del área son vulnerables, 35,61% son medianamente vulnerables y 30,80% son representadas por áreas estables. Se identificó que el uso de la tierra para cultivo de soja y eucalipto al sur de la cuenca elevó el grado de vulnerabilidad ambiental, pues intensifica la acción erosiva en los suelos.A vulnerabilidade ambiental é definida como qualquer susceptibilidade do ambiente a um impacto potencial provocado por um uso antrópico. A bacia, localizado na região nordeste do estado do Maranhão, ocupa uma área de 5.235,63 quilômetros quadrados. O desenvolvimento do estudo da vulnerabilidade ambiental desta bacia é importante, pois serve de subsidio ao planejamento ambiental visando a sustentabilidade dos recursos hídricos. O objetivo deste trabalho foi caracterizar a vulnerabilidade ambiental da bacia hidrográfica do Rio Preto, considerando a integração dos solos, a declividade, a estrutura geológica e o uso e cobertura da terra com base na sua estabilidade em relação à morfogênese e à pedogênese almejando contribuir na mitigação de risco da erosão. Para tal, foram utilizadas técnicas de geoprocessamento, que permitiram estabelecer três tipos de unidades ambientais: meios estáveis, onde predomina a pedogênese; meios intergrades, no qual há equilíbrio entre a pedogênese e a morfogênese; e os fortemente instáveis, onde predomina a morfogênese, para assim determinar a intensidade e distribuição da vulnerabilidade na bacia. Verificou-se que 33,59% da área é vulnerável, 35,61% é medianamente vulnerável e 30,80% é representada por áreas estáveis. Identificou-se que o uso da terra para cultivo de soja e eucalipto ao sul da bacia elevou o grau de vulnerabilidade ambiental, pois intensifica a ação erosiva nos solos.Universidade Estadual de Londrina2020-01-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado pelos paresapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/geografia/article/view/3661910.5433/2447-1747.2020v29n1p85GEOGRAFIA (Londrina); v. 29 n. 1 (2020); 85 - 1052447-1747reponame:Geografia (Londrina)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36619/26738Copyright (c) 2020 GEOGRAFIA (Londrina)http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSantos, Luiz Carlos Araujo dosSoares, Idevan Gusmão2022-09-20T15:52:54Zoai:ojs.pkp.sfu.ca:article/36619Revistahttps://www.uel.br/revistas/uel/index.php/geografiaPUBhttps://www.uel.br/revistas/uel/index.php/geografia/oairevista.geografia.uel@gmail.com||marcar@uel.br||laudi@uel.br2447-17470102-3888opendoar:2022-09-20T15:52:54Geografia (Londrina) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil Caracterización de la Vulnerabilidad Ambiental en la Cuenca Hidrográfica de Rio Preto, Maranhão – Brasil Caracterização da Vulnerabilidade Ambiental na Bacia Hidrográfica do Rio Preto, Maranhão – Brasil |
title |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil |
spellingShingle |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil Santos, Luiz Carlos Araujo dos Environmental vulnerability Environmental units Rio Preto. Vulnerabilidad ambiental Unidades ambientales Rio Preto. Vulnerabilidade ambiental Unidades ambientais Rio Preto. |
title_short |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil |
title_full |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil |
title_fullStr |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil |
title_full_unstemmed |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil |
title_sort |
Characterization of the Environmental Vulnerability in the Rio Preto River Basin, Maranhão – Brazil |
author |
Santos, Luiz Carlos Araujo dos |
author_facet |
Santos, Luiz Carlos Araujo dos Soares, Idevan Gusmão |
author_role |
author |
author2 |
Soares, Idevan Gusmão |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Santos, Luiz Carlos Araujo dos Soares, Idevan Gusmão |
dc.subject.por.fl_str_mv |
Environmental vulnerability Environmental units Rio Preto. Vulnerabilidad ambiental Unidades ambientales Rio Preto. Vulnerabilidade ambiental Unidades ambientais Rio Preto. |
topic |
Environmental vulnerability Environmental units Rio Preto. Vulnerabilidad ambiental Unidades ambientales Rio Preto. Vulnerabilidade ambiental Unidades ambientais Rio Preto. |
description |
Environmental vulnerability is defined as any susceptibility of the environment to a potential impact caused by any anthropic use. The basin located in the northeast region of Maranhão state occupies an area of 5,235.63 square kilometers. The study development of the environmental vulnerability of this basin is important because it serves as a subsidy to environmental planning aiming at the sustainability of water resources. The paper objective was to characterize the environmental vulnerability of the Rio Preto basin, considering soil integration, slope, geological structure, and land use and cover based on its stability in relation to morphogenesis and pedogenesis aiming to contribute to the erosion risk mitigation. For this, geoprocessing techniques were used, which allowed the establishment of three types of environmental units: stable environments, where pedogenesis predominates; intergrades mean, in which there is a balance between pedogenesis and morphogenesis; and the highly unstable, where morphogenesis predominates, to determine the intensity and distribution of vulnerability in the basin. It was found that 33.59% of the area is vulnerable, 35.61% are moderately vulnerable and 30.80% are represented by stable areas. It was found that the use of land for soybean and eucalyptus cultivation in the south of the basin increased the degree of environmental vulnerability, as it intensifies erosive action in soils. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado pelos pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36619 10.5433/2447-1747.2020v29n1p85 |
url |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36619 |
identifier_str_mv |
10.5433/2447-1747.2020v29n1p85 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36619/26738 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 GEOGRAFIA (Londrina) http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 GEOGRAFIA (Londrina) http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Londrina |
publisher.none.fl_str_mv |
Universidade Estadual de Londrina |
dc.source.none.fl_str_mv |
GEOGRAFIA (Londrina); v. 29 n. 1 (2020); 85 - 105 2447-1747 reponame:Geografia (Londrina) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Geografia (Londrina) |
collection |
Geografia (Londrina) |
repository.name.fl_str_mv |
Geografia (Londrina) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
revista.geografia.uel@gmail.com||marcar@uel.br||laudi@uel.br |
_version_ |
1799315432348319744 |