Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRR |
Texto Completo: | http://repositorio.ufrr.br:8080/jspui/handle/prefix/865 |
Resumo: | The natural landscape of Boa Vista city is composed of a dense drainage network wich has been replaced by the urban sprawl that spreads upon watercourses, streams, swamps and lakes. This natural landscape has been the scene of population and city growth, more intensely since the 1980s. The main objective of this study is the spatial and temporal analysis of the landscape change from 1985 to 2014, using the geotechnologies of Boa Vista city (Roraima, Brazil), seeking for an understanding of the changes in this locality. To fulfil the aim were performed fieldwork, collection of points in GPS, photos, descriptions of the landscape and bibliographic review. The use of geotechnology was relevant in the analysis and treatment of Landsat 5 satellite images of the years 1985 and 1995, CBERS 2 of 2005 and Landsat 8 of 2013 and 2014, in wich atmospheric correction and image processing was made for supervised classification of soil use through MAXVER procedure (maximum verisimilitude). The drainage extraction and elaboration of sub-basins was made from the TOPODATA. The image use provides visualization and interpretation of changes in the lakes landscape as a result of urban sprawl. For the seven lakes were developed maps of APPs (permanent preservation areas) as a case study. The geographical science with the geotechnology assistance can support the decision-making process, pointing that the results of interpretative analysis of images are reliable, showing that the basins were changed with the density of the lakes, of which are springs. Therefore, are sensitive and important areas for local and regional water dynamics but yet their natural limits have been replaced by urban sprawl over the years. It is observed that the environmental authorities have been trying to avoid urban sprawling and illegal occupation to preserve the area around lakes. The analysis shows the need to monitor and implement joint actions by the government to inhibit the occupation of APPs and planning for the city’s growth in compliance with the legislation to avoid the disappearance of lakes and springs that are so important for the dynamics of the water bodies of Boa Vista. The importance of this research is the construction of new knowledge and information that may support the environmental and urban planning to ensure the preservation of the existing lakes. |
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Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RRGeografiaLagosUrbanizaçãoGeotecnologiasGeographyLakesUrbanizationGeotechnologiesCNPQ::CIENCIAS HUMANAS::GEOGRAFIAThe natural landscape of Boa Vista city is composed of a dense drainage network wich has been replaced by the urban sprawl that spreads upon watercourses, streams, swamps and lakes. This natural landscape has been the scene of population and city growth, more intensely since the 1980s. The main objective of this study is the spatial and temporal analysis of the landscape change from 1985 to 2014, using the geotechnologies of Boa Vista city (Roraima, Brazil), seeking for an understanding of the changes in this locality. To fulfil the aim were performed fieldwork, collection of points in GPS, photos, descriptions of the landscape and bibliographic review. The use of geotechnology was relevant in the analysis and treatment of Landsat 5 satellite images of the years 1985 and 1995, CBERS 2 of 2005 and Landsat 8 of 2013 and 2014, in wich atmospheric correction and image processing was made for supervised classification of soil use through MAXVER procedure (maximum verisimilitude). The drainage extraction and elaboration of sub-basins was made from the TOPODATA. The image use provides visualization and interpretation of changes in the lakes landscape as a result of urban sprawl. For the seven lakes were developed maps of APPs (permanent preservation areas) as a case study. The geographical science with the geotechnology assistance can support the decision-making process, pointing that the results of interpretative analysis of images are reliable, showing that the basins were changed with the density of the lakes, of which are springs. Therefore, are sensitive and important areas for local and regional water dynamics but yet their natural limits have been replaced by urban sprawl over the years. It is observed that the environmental authorities have been trying to avoid urban sprawling and illegal occupation to preserve the area around lakes. The analysis shows the need to monitor and implement joint actions by the government to inhibit the occupation of APPs and planning for the city’s growth in compliance with the legislation to avoid the disappearance of lakes and springs that are so important for the dynamics of the water bodies of Boa Vista. The importance of this research is the construction of new knowledge and information that may support the environmental and urban planning to ensure the preservation of the existing lakes.A paisagem natural da cidade de Boa Vista é composta por uma densa rede de drenagem, a qual tem sido substituída pela expansão urbana que avança sobre os igarapés, brejos e lagos. Esta paisagem natural tem sido palco do aumento populacional e do crescimento da cidade, mais intensamente desde a década de 1980. A análise espaço/temporal da mudança da paisagem de 1985 a 2014, a partir do uso de geotecnologias da cidade de Boa Vista – RR é o objetivo principal deste estudo, visando o entendimento das mudanças na localidade. Para alcançar os objetivos foram realizados trabalhos de campo, coleta de ponto em GPS, fotos, descrição da paisagem e revisão bibliográfica. O uso de geotecnologia foi relevante na análise e tratamento das imagens de satélite Landsat 5 dos anos de 1985 e 1995, CBERS 2 do ano de 2005 e Landsat 8 dos anos de 2013 e 2014, nas quais foram feitas correções atmosféricas e processamento das imagens para classificação supervisionada do uso do solo, através do procedimento MAXVER (máxima verossimilhança). A extração de drenagem e elaboração das sub-bacias hidrográficas foram feitas a partir dos dados do TOPODATA. O uso de imagem de satélite favoreceu a visualização e interpretação da mudança da paisagem de lagos em virtude da expansão urbana. Para as análises dos sete lagos foram elaborados mapas de APPs (áreas de preservação permanente) como estudo de caso. A ciência geográfica com o auxílio da geotecnologia pode subsidiar na tomada de decisões, apontando que os resultados da análise interpretativa das imagens são confiáveis, demonstrando que as bacias foram alteradas no adensamento dos lagos, dos quais são nascentes e, portanto, são áreas sensíveis e importantes para a dinâmica hídrica local e regional. Todavia seus limites naturais vêm, no decorrer dos anos sendo substituídos pela expansão urbana. Observou-se que os órgãos ambientais do município têm tentado coibir a expansão urbana e as ocupações irregulares para preservar as áreas de lagos. As análises demonstram que há necessidade de monitorar e implementar ações conjuntas do poder público para inibir a ocupação de APPs e planejamento para o crescimento da cidade levando em consideração o que determina a legislação para que não haja o desaparecimento dos lagos/nascentes que são importantes para dinâmica dos corpos hídrico da cidade de Boa Vista. A importância dessa investigação está na construção de novos conhecimentos e informações que poderão subsidiar o planejamento ambiental e urbano para garantir a preservação dos lagos existentes.Agência 1Universidade Federal de RoraimaBrasilPRPPG - Pró-reitoria de Pesquisa e Pós-GraduaçãoPPG-GEO - Programa de Pós-Graduação em GeografiaUFRRSouza, Vladimir dehttp://lattes.cnpq.br/2662567920356177Tavares Júnior, Stélio Soareshttp://lattes.cnpq.br/0353581810615756Silva, Valdete Costa2023-10-16T18:46:57Z20232023-10-16T18:46:57Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://repositorio.ufrr.br:8080/jspui/handle/prefix/865porSILVA, Valdete Costa. Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR. 2015. 155f. Dissertação (Mestrado em Geografia) - Programa de Pós-Graduação em Geografia, Universidade Federal de Roraima, Boa Vista, 2015.Attribution-NonCommercial-ShareAlike 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-sa/3.0/br/info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRRinstname:Universidade Federal de Roraima (UFRR)instacron:UFRR2023-10-19T05:00:42Zoai:repositorio.ufrr.br:prefix/865Repositório InstitucionalPUBhttp://repositorio.ufrr.br:8080/oai/requestangelsenhora@gmail.comopendoar:2023-10-19T05:00:42Repositório Institucional da UFRR - Universidade Federal de Roraima (UFRR)false |
dc.title.none.fl_str_mv |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
title |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
spellingShingle |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR Silva, Valdete Costa Geografia Lagos Urbanização Geotecnologias Geography Lakes Urbanization Geotechnologies CNPQ::CIENCIAS HUMANAS::GEOGRAFIA |
title_short |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
title_full |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
title_fullStr |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
title_full_unstemmed |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
title_sort |
Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR |
author |
Silva, Valdete Costa |
author_facet |
Silva, Valdete Costa |
author_role |
author |
dc.contributor.none.fl_str_mv |
Souza, Vladimir de http://lattes.cnpq.br/2662567920356177 Tavares Júnior, Stélio Soares http://lattes.cnpq.br/0353581810615756 |
dc.contributor.author.fl_str_mv |
Silva, Valdete Costa |
dc.subject.por.fl_str_mv |
Geografia Lagos Urbanização Geotecnologias Geography Lakes Urbanization Geotechnologies CNPQ::CIENCIAS HUMANAS::GEOGRAFIA |
topic |
Geografia Lagos Urbanização Geotecnologias Geography Lakes Urbanization Geotechnologies CNPQ::CIENCIAS HUMANAS::GEOGRAFIA |
description |
The natural landscape of Boa Vista city is composed of a dense drainage network wich has been replaced by the urban sprawl that spreads upon watercourses, streams, swamps and lakes. This natural landscape has been the scene of population and city growth, more intensely since the 1980s. The main objective of this study is the spatial and temporal analysis of the landscape change from 1985 to 2014, using the geotechnologies of Boa Vista city (Roraima, Brazil), seeking for an understanding of the changes in this locality. To fulfil the aim were performed fieldwork, collection of points in GPS, photos, descriptions of the landscape and bibliographic review. The use of geotechnology was relevant in the analysis and treatment of Landsat 5 satellite images of the years 1985 and 1995, CBERS 2 of 2005 and Landsat 8 of 2013 and 2014, in wich atmospheric correction and image processing was made for supervised classification of soil use through MAXVER procedure (maximum verisimilitude). The drainage extraction and elaboration of sub-basins was made from the TOPODATA. The image use provides visualization and interpretation of changes in the lakes landscape as a result of urban sprawl. For the seven lakes were developed maps of APPs (permanent preservation areas) as a case study. The geographical science with the geotechnology assistance can support the decision-making process, pointing that the results of interpretative analysis of images are reliable, showing that the basins were changed with the density of the lakes, of which are springs. Therefore, are sensitive and important areas for local and regional water dynamics but yet their natural limits have been replaced by urban sprawl over the years. It is observed that the environmental authorities have been trying to avoid urban sprawling and illegal occupation to preserve the area around lakes. The analysis shows the need to monitor and implement joint actions by the government to inhibit the occupation of APPs and planning for the city’s growth in compliance with the legislation to avoid the disappearance of lakes and springs that are so important for the dynamics of the water bodies of Boa Vista. The importance of this research is the construction of new knowledge and information that may support the environmental and urban planning to ensure the preservation of the existing lakes. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2023-10-16T18:46:57Z 2023 2023-10-16T18:46:57Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufrr.br:8080/jspui/handle/prefix/865 |
url |
http://repositorio.ufrr.br:8080/jspui/handle/prefix/865 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
SILVA, Valdete Costa. Mudança na paisagem de lagos da Zona Oeste da cidade de Boa Vista-RR. 2015. 155f. Dissertação (Mestrado em Geografia) - Programa de Pós-Graduação em Geografia, Universidade Federal de Roraima, Boa Vista, 2015. |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-ShareAlike 3.0 Brazil http://creativecommons.org/licenses/by-nc-sa/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-ShareAlike 3.0 Brazil http://creativecommons.org/licenses/by-nc-sa/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Roraima Brasil PRPPG - Pró-reitoria de Pesquisa e Pós-Graduação PPG-GEO - Programa de Pós-Graduação em Geografia UFRR |
publisher.none.fl_str_mv |
Universidade Federal de Roraima Brasil PRPPG - Pró-reitoria de Pesquisa e Pós-Graduação PPG-GEO - Programa de Pós-Graduação em Geografia UFRR |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRR instname:Universidade Federal de Roraima (UFRR) instacron:UFRR |
instname_str |
Universidade Federal de Roraima (UFRR) |
instacron_str |
UFRR |
institution |
UFRR |
reponame_str |
Repositório Institucional da UFRR |
collection |
Repositório Institucional da UFRR |
repository.name.fl_str_mv |
Repositório Institucional da UFRR - Universidade Federal de Roraima (UFRR) |
repository.mail.fl_str_mv |
angelsenhora@gmail.com |
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1802112041493725184 |