Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/8054 |
Resumo: | The changes in land-cover and land-use are among the main causes of a series of environmental, social, and economic impacts. In particular, the formation of artificial reservoirs, due to the construction of hydroelectric plants (HPP), has been the subject of scientific studies in the country, mainly due to the changes they cause to the environment. Specifically, the construction of the Luís Eduardo Magalhães HPP in 2001 (along the Tocantins River), in a context of large-scale constructions in the state of Tocantins, resulted in a large flooded area (~ 630 km²), significant changes in the landscape, and relocation of rural and urban populations. In this sense, this work aimed to evaluate and quantify, through various satellite datasets and land-cover and land-use mapping of the area under the influence of the reservoir of the Luís Eduardo Magalhães HPP (in the period before and after its implementation), changes in the landscape and associated biophysical parameters. At the landscape scale, the following surface parameters, derived from Terra-MODIS images, were evaluated seasonally: temperature, vegetation index, evapotranspiration, and albedo. The analysis of these data, in the spatial - temporal domains, involved three experimental models: a) considering the area of influence of the reservoir as a whole (equidistance of 30 km); b) analysis considering the equidistance or proximity to the reservoir (through buffers, latitudinal transects, and areas of interest); c) comparisons between the MODIS sensor results and the biophysical parameters obtained from Landsat images (transformed by the SEBAL algorithm). The results of our research show the potential of using remote sensing images in the study of variations of biophysical parameters. The implementation of the Luís Eduardo Magalhães HPP reservoir boosted the occupation of areas around it, especially: the São João irrigation project (irrigation from lake water), the increase in real estate speculation through the creation of new land subdivisions and closed condominiums with direct access to the lake, occupation of other areas due to the relocation of families (as in the case of the district of Luzimangues-Porto Nacional), and the creation of condominiums near the reservoir. Between 2000 and 2014, there was a 111% decrease in the Cerrado native vegetation (forest formations, grassland formations, open and dense Cerrado Strict Sensu physiognomies) and an increase of 66% in urban areas and 947% in the agricultural areas. It was also observed that almost half of the entire study area (42%) suffered some kind of alteration in the land cover. The changes observed in the local biophysical parameters were a direct result of the reservoir implantation and the State's occupation and development policies (such as soybean financing), which influenced the spatial configuration of the various land-cover classes and existing land use in the study area. As a result, a number of negative environmental / climatic impacts are already perceived in the area. Therefore, it is suggested to implement public policies regarding the systematic monitoring of biophysical parameters in the area, with a view to minimizing and mitigating more severe long-term environmental impacts. |
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Ferreira Júnior, Laerte Guimarãeshttp://lattes.cnpq.br/8647270006257055Silva, Bernardo Barbosa dahttp://lattes.cnpq.br/8285693170429747Ferreira Júnior, Laerte GuimarãesOliveira, Ivanilton José deLuiz, Gislaine CristinaSouza, Lucas Barbosa eFerreira, Nilson Clementinohttp://lattes.cnpq.br/9814218086040607Pires, Érika Gonçalves2017-12-19T10:59:36Z2017-11-17PIRES, É. G. Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO. 2017. 224 f. Tese (Doutorado em Geografia) - Universidade Federal de Goiás, Goiânia, 2017.http://repositorio.bc.ufg.br/tede/handle/tede/8054The changes in land-cover and land-use are among the main causes of a series of environmental, social, and economic impacts. In particular, the formation of artificial reservoirs, due to the construction of hydroelectric plants (HPP), has been the subject of scientific studies in the country, mainly due to the changes they cause to the environment. Specifically, the construction of the Luís Eduardo Magalhães HPP in 2001 (along the Tocantins River), in a context of large-scale constructions in the state of Tocantins, resulted in a large flooded area (~ 630 km²), significant changes in the landscape, and relocation of rural and urban populations. In this sense, this work aimed to evaluate and quantify, through various satellite datasets and land-cover and land-use mapping of the area under the influence of the reservoir of the Luís Eduardo Magalhães HPP (in the period before and after its implementation), changes in the landscape and associated biophysical parameters. At the landscape scale, the following surface parameters, derived from Terra-MODIS images, were evaluated seasonally: temperature, vegetation index, evapotranspiration, and albedo. The analysis of these data, in the spatial - temporal domains, involved three experimental models: a) considering the area of influence of the reservoir as a whole (equidistance of 30 km); b) analysis considering the equidistance or proximity to the reservoir (through buffers, latitudinal transects, and areas of interest); c) comparisons between the MODIS sensor results and the biophysical parameters obtained from Landsat images (transformed by the SEBAL algorithm). The results of our research show the potential of using remote sensing images in the study of variations of biophysical parameters. The implementation of the Luís Eduardo Magalhães HPP reservoir boosted the occupation of areas around it, especially: the São João irrigation project (irrigation from lake water), the increase in real estate speculation through the creation of new land subdivisions and closed condominiums with direct access to the lake, occupation of other areas due to the relocation of families (as in the case of the district of Luzimangues-Porto Nacional), and the creation of condominiums near the reservoir. Between 2000 and 2014, there was a 111% decrease in the Cerrado native vegetation (forest formations, grassland formations, open and dense Cerrado Strict Sensu physiognomies) and an increase of 66% in urban areas and 947% in the agricultural areas. It was also observed that almost half of the entire study area (42%) suffered some kind of alteration in the land cover. The changes observed in the local biophysical parameters were a direct result of the reservoir implantation and the State's occupation and development policies (such as soybean financing), which influenced the spatial configuration of the various land-cover classes and existing land use in the study area. As a result, a number of negative environmental / climatic impacts are already perceived in the area. Therefore, it is suggested to implement public policies regarding the systematic monitoring of biophysical parameters in the area, with a view to minimizing and mitigating more severe long-term environmental impacts.As mudanças na cobertura e uso da terra estão entre os principais causadores de uma série de impactos de ordem ambiental, social e econômica. Em particular, a formação de reservatórios artificiais, em virtude da construção de usinas hidrelétricas (UHE), tem sido tema de estudos científicos no país, principalmente devido às alterações que causam ao meio ambiente. Especificamente, a construção da UHE Luís Eduardo Magalhães em 2001 (ao longo do Rio Tocantins), em um contexto de implementação de obras de grande porte no estado do Tocantins, resultou em uma grande área alagada (~ 630 km²), mudanças significativas nas paisagens e remanejamento de populações rurais e urbanas. Neste sentido, este trabalho buscou avaliar e quantificar, por meio de dados satelitários diversos e mapeamentos da cobertura e uso da terra na área de influência do reservatório da UHE Luís Eduardo Magalhães (no período anterior e posterior à sua implantação), as mudanças na paisagem e nos parâmetros biofísicos superficiais associados. À escala da paisagem, foram avaliados, sazonalmente, os seguintes parâmetros superficiais derivados de imagens Terra-MODIS: temperatura, índice de vegetação, evapotranspiração e albedo. A análise destes dados, em uma perspectiva espaço-temporal, envolveu três modelos experimentais: a) considerando a área de influência do reservatório como um todo (equidistância de 30 km); b) análise considerando a equidistância ou proximidade com o reservatório (através de buffers, transectos latitudinais e áreas de interesse); c) comparações entre os resultados do sensor MODIS com os parâmetros biofísicos obtidos das imagens Landsat (transformadas por meio do algoritmo SEBAL). Os resultados de nossa pesquisa evidenciam o potencial de uso de imagens de sensoriamento remoto no estudo das variações de parâmetros biofísicos. A implantação do reservatório da UHE Luís Eduardo Magalhães impulsionou a ocupação de áreas no entorno do mesmo, destacando-se: o projeto agrícola de irrigação São João (irrigação a partir da água do lago), o aumento da especulação imobiliária através da criação de novos loteamentos e condomínios horizontais fechados com acesso direto ao lago, ocupação de outras áreas em virtude da realocação de famílias (como é o caso do distrito de Luzimangues-Porto Nacional), além da criação de condomínios de chácaras próximos ao reservatório. Entre os anos de 2000 e 2014, constatou-se uma diminuição de 111% nas áreas de vegetação nativa do Cerrado (Formações florestais, Formações campestres, Cerrado sentido restrito ralo e denso) e um aumento de 66% nas áreas urbanas e de 947% nas áreas agrícolas. Observou-se ainda que quase metade de toda a área de estudo (42%) sofreu algum tipo de alteração na cobertura da terra. As alterações observadas nos parâmetros biofísicos locais foram resultado direto da implantação do reservatório e das políticas de ocupação e desenvolvimento promovidas pelo Estado (como por exemplo, os financiamentos para a produção de soja), as quais influenciaram a configuração espacial das diversas classes de cobertura e uso da terra existentes na área de estudo. Em consequência, vários impactos ambientais/climáticos negativos já são percebidos na área de estudo. Deste modo, sugere-se a implementação de políticas públicas de monitoramento sistemático dos parâmetros biofísicos nesta área, com vistas a minimizar e mitigar impactos ambientais mais severos a longo prazo.Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-12-19T10:58:35Z No. of bitstreams: 2 Tese - Érika Gonçalves Pires - 2017.pdf: 34121792 bytes, checksum: 01fa175be83636fb98bdf7e861506b3f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-12-19T10:59:36Z (GMT) No. of bitstreams: 2 Tese - Érika Gonçalves Pires - 2017.pdf: 34121792 bytes, checksum: 01fa175be83636fb98bdf7e861506b3f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2017-12-19T10:59:36Z (GMT). No. of bitstreams: 2 Tese - Érika Gonçalves Pires - 2017.pdf: 34121792 bytes, checksum: 01fa175be83636fb98bdf7e861506b3f (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-11-17application/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Geografia (IESA)UFGBrasilInstituto de Estudos Socioambientais - IESA (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessTemperatura de superfícieÍndice de vegetaçãoEvapotranspiraçãoAlbedoTerra/MODIS e Landsat/SEBALSurface temperatureVegetation indexEvapotranspirationAlbedoTerra/MODIS and Landsat/SEBALCIENCIAS HUMANAS::GEOGRAFIAAvaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TOEvaluation of biophysical parameters, derived from satellite data, in the area of influence of the reservoir of Luís Eduardo Magalhães HPP - TOinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis78882710595057041476006006004536785967207850203-599424733620574926reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
dc.title.alternative.eng.fl_str_mv |
Evaluation of biophysical parameters, derived from satellite data, in the area of influence of the reservoir of Luís Eduardo Magalhães HPP - TO |
title |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
spellingShingle |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO Pires, Érika Gonçalves Temperatura de superfície Índice de vegetação Evapotranspiração Albedo Terra/MODIS e Landsat/SEBAL Surface temperature Vegetation index Evapotranspiration Albedo Terra/MODIS and Landsat/SEBAL CIENCIAS HUMANAS::GEOGRAFIA |
title_short |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
title_full |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
title_fullStr |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
title_full_unstemmed |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
title_sort |
Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO |
author |
Pires, Érika Gonçalves |
author_facet |
Pires, Érika Gonçalves |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Ferreira Júnior, Laerte Guimarães |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8647270006257055 |
dc.contributor.advisor-co1.fl_str_mv |
Silva, Bernardo Barbosa da |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/8285693170429747 |
dc.contributor.referee1.fl_str_mv |
Ferreira Júnior, Laerte Guimarães |
dc.contributor.referee2.fl_str_mv |
Oliveira, Ivanilton José de |
dc.contributor.referee3.fl_str_mv |
Luiz, Gislaine Cristina |
dc.contributor.referee4.fl_str_mv |
Souza, Lucas Barbosa e |
dc.contributor.referee5.fl_str_mv |
Ferreira, Nilson Clementino |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9814218086040607 |
dc.contributor.author.fl_str_mv |
Pires, Érika Gonçalves |
contributor_str_mv |
Ferreira Júnior, Laerte Guimarães Silva, Bernardo Barbosa da Ferreira Júnior, Laerte Guimarães Oliveira, Ivanilton José de Luiz, Gislaine Cristina Souza, Lucas Barbosa e Ferreira, Nilson Clementino |
dc.subject.por.fl_str_mv |
Temperatura de superfície Índice de vegetação Evapotranspiração Albedo Terra/MODIS e Landsat/SEBAL |
topic |
Temperatura de superfície Índice de vegetação Evapotranspiração Albedo Terra/MODIS e Landsat/SEBAL Surface temperature Vegetation index Evapotranspiration Albedo Terra/MODIS and Landsat/SEBAL CIENCIAS HUMANAS::GEOGRAFIA |
dc.subject.eng.fl_str_mv |
Surface temperature Vegetation index Evapotranspiration Albedo Terra/MODIS and Landsat/SEBAL |
dc.subject.cnpq.fl_str_mv |
CIENCIAS HUMANAS::GEOGRAFIA |
description |
The changes in land-cover and land-use are among the main causes of a series of environmental, social, and economic impacts. In particular, the formation of artificial reservoirs, due to the construction of hydroelectric plants (HPP), has been the subject of scientific studies in the country, mainly due to the changes they cause to the environment. Specifically, the construction of the Luís Eduardo Magalhães HPP in 2001 (along the Tocantins River), in a context of large-scale constructions in the state of Tocantins, resulted in a large flooded area (~ 630 km²), significant changes in the landscape, and relocation of rural and urban populations. In this sense, this work aimed to evaluate and quantify, through various satellite datasets and land-cover and land-use mapping of the area under the influence of the reservoir of the Luís Eduardo Magalhães HPP (in the period before and after its implementation), changes in the landscape and associated biophysical parameters. At the landscape scale, the following surface parameters, derived from Terra-MODIS images, were evaluated seasonally: temperature, vegetation index, evapotranspiration, and albedo. The analysis of these data, in the spatial - temporal domains, involved three experimental models: a) considering the area of influence of the reservoir as a whole (equidistance of 30 km); b) analysis considering the equidistance or proximity to the reservoir (through buffers, latitudinal transects, and areas of interest); c) comparisons between the MODIS sensor results and the biophysical parameters obtained from Landsat images (transformed by the SEBAL algorithm). The results of our research show the potential of using remote sensing images in the study of variations of biophysical parameters. The implementation of the Luís Eduardo Magalhães HPP reservoir boosted the occupation of areas around it, especially: the São João irrigation project (irrigation from lake water), the increase in real estate speculation through the creation of new land subdivisions and closed condominiums with direct access to the lake, occupation of other areas due to the relocation of families (as in the case of the district of Luzimangues-Porto Nacional), and the creation of condominiums near the reservoir. Between 2000 and 2014, there was a 111% decrease in the Cerrado native vegetation (forest formations, grassland formations, open and dense Cerrado Strict Sensu physiognomies) and an increase of 66% in urban areas and 947% in the agricultural areas. It was also observed that almost half of the entire study area (42%) suffered some kind of alteration in the land cover. The changes observed in the local biophysical parameters were a direct result of the reservoir implantation and the State's occupation and development policies (such as soybean financing), which influenced the spatial configuration of the various land-cover classes and existing land use in the study area. As a result, a number of negative environmental / climatic impacts are already perceived in the area. Therefore, it is suggested to implement public policies regarding the systematic monitoring of biophysical parameters in the area, with a view to minimizing and mitigating more severe long-term environmental impacts. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-12-19T10:59:36Z |
dc.date.issued.fl_str_mv |
2017-11-17 |
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 |
PIRES, É. G. Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO. 2017. 224 f. Tese (Doutorado em Geografia) - Universidade Federal de Goiás, Goiânia, 2017. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/8054 |
identifier_str_mv |
PIRES, É. G. Avaliação de parâmetros biofísicos, derivados de dados satelitários, na área de influência do reservatório da UHE Luís Eduardo Magalhães - TO. 2017. 224 f. Tese (Doutorado em Geografia) - Universidade Federal de Goiás, Goiânia, 2017. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/8054 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
7888271059505704147 |
dc.relation.confidence.fl_str_mv |
600 600 600 |
dc.relation.department.fl_str_mv |
4536785967207850203 |
dc.relation.cnpq.fl_str_mv |
-599424733620574926 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
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 Goiás |
dc.publisher.program.fl_str_mv |
Programa de Pós-graduação em Geografia (IESA) |
dc.publisher.initials.fl_str_mv |
UFG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Instituto de Estudos Socioambientais - IESA (RG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFG instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
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UFG |
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UFG |
reponame_str |
Repositório Institucional da UFG |
collection |
Repositório Institucional da UFG |
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tasesdissertacoes.bc@ufg.br |
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