Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil

Detalhes bibliográficos
Autor(a) principal: Santos, Linaldo Severino
Data de Publicação: 2020
Outros Autores: Barros Silva, Helena Paula, Pereira, Eugênia Cristina Gonçalves, Silva, Hewerton Alves
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Sociedade & natureza (Online)
Texto Completo: https://seer.ufu.br/index.php/sociedadenatureza/article/view/45721
Resumo: The semi-arid Northeast is one of the least known Brazilian regions in terms of vegetative diversity since claims of there being few plants endemic to the Caatinga are unjustly propagated. However, although this biome has suffered a lot through anthropic action, it presents a great diversity of vegetational types, including disjunctions of other biomes in exceptional areas, such as humid brejos de altitude, which are present as isolated patches in the landscape of the semi-arid Northeast. Thus, in this study, an analysis was made to differentiate the vegetation coverage along a topographic profile, in a spatial transect of the southern Agreste region of Pernambuco, comprising portions of the municipalities of Águas Belas, Iati and Saloá, through 10 plots established along this topographic profile. Application of the Normalized Difference Vegetation Index (NDVI) showed the variation of values as a function of the topography, revealing that in depression areas, where drier caatinga is observed, the lowest value of NDVI was obtained (0.18). On the other hand, in the areas of higher relief, where montane forests and cerrado develop, the highest values were found (0.49), thus showing the influence of topography on the distribution of humidity and vegetational features.
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spelling Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – BrazilVariação da cobertura vegetal com ênfase na identificação de mancha de cerrado em um perfil topográfico do semiárido pernambucano - BrasilCobertura vegetalMancha de cerradoPerfil topográficoSemiárido de PernambucoVegetation coverageCerrado patchesTopographic profileSemi-arid region of PernambucoThe semi-arid Northeast is one of the least known Brazilian regions in terms of vegetative diversity since claims of there being few plants endemic to the Caatinga are unjustly propagated. However, although this biome has suffered a lot through anthropic action, it presents a great diversity of vegetational types, including disjunctions of other biomes in exceptional areas, such as humid brejos de altitude, which are present as isolated patches in the landscape of the semi-arid Northeast. Thus, in this study, an analysis was made to differentiate the vegetation coverage along a topographic profile, in a spatial transect of the southern Agreste region of Pernambuco, comprising portions of the municipalities of Águas Belas, Iati and Saloá, through 10 plots established along this topographic profile. Application of the Normalized Difference Vegetation Index (NDVI) showed the variation of values as a function of the topography, revealing that in depression areas, where drier caatinga is observed, the lowest value of NDVI was obtained (0.18). On the other hand, in the areas of higher relief, where montane forests and cerrado develop, the highest values were found (0.49), thus showing the influence of topography on the distribution of humidity and vegetational features.O semiárido nordestino é uma das regiões brasileiras mais desconhecidas, no tocante à diversidade vegetacional, uma vez que são propagadas, injustamente, informações que versam sobre as poucas plantas endêmicas da Caatinga. Entretanto, apesar desse bioma ter sofrido bastante pela ação antrópica, este apresenta uma grande diversidade de tipos vegetacionais, inclusive apresentando disjunções de outros biomas em áreas de exceção, como ocorrem nos brejos de altitude, que de maneira pontual estão presentes na paisagem do semiárido nordestino. Com isso, neste estudo buscou-se realizar uma análise no sentido da diferenciação da cobertura vegetal ao longo de um perfil topográfico, em recorte espacial do agreste meridional pernambucano, compreendendo porções dos municípios de Águas Belas, Iati e Saloá, através das dez parcelas instaladas ao longo desse perfil. A aplicação do Índice de Vegetação por Diferença Normalizada (NDVI) mostrou a variação dos valores em função da topografia, revelando que nas áreas de depressão, em que se observa uma caatinga mais seca, obteve-se o menor valor do NDVI (0,18). Em contrapartida, nas áreas de relevo mais elevado, onde se desenvolvem matas serranas e o cerrado, foram encontrados os maiores valores (0,49), mostrando, desta forma, a influência da topografia na distribuição da umidade e feições vegetacionais.Universidade Federal de Uberlândia2020-05-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.ufu.br/index.php/sociedadenatureza/article/view/4572110.14393/SN-v32-2020-45721Sociedade & Natureza; Vol. 32 (2020); 335-345Sociedade & Natureza; v. 32 (2020); 335-3451982-45130103-1570reponame:Sociedade & natureza (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUporenghttps://seer.ufu.br/index.php/sociedadenatureza/article/view/45721/28930https://seer.ufu.br/index.php/sociedadenatureza/article/view/45721/28931Copyright (c) 2020 Helena Paula Barros Silvainfo:eu-repo/semantics/openAccessSantos, Linaldo SeverinoBarros Silva, Helena PaulaPereira, Eugênia Cristina GonçalvesSilva, Hewerton Alves2021-07-01T16:18:20Zoai:ojs.www.seer.ufu.br:article/45721Revistahttp://www.sociedadenatureza.ig.ufu.br/PUBhttps://seer.ufu.br/index.php/sociedadenatureza/oai||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br1982-45130103-1570opendoar:2021-07-01T16:18:20Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU)false
dc.title.none.fl_str_mv Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
Variação da cobertura vegetal com ênfase na identificação de mancha de cerrado em um perfil topográfico do semiárido pernambucano - Brasil
title Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
spellingShingle Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
Santos, Linaldo Severino
Cobertura vegetal
Mancha de cerrado
Perfil topográfico
Semiárido de Pernambuco
Vegetation coverage
Cerrado patches
Topographic profile
Semi-arid region of Pernambuco
title_short Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
title_full Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
title_fullStr Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
title_full_unstemmed Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
title_sort Changes in vegetation coverage with emphasis on the identification of cerrado patches in a topographic profile of the semi-arid region from Pernambuco – Brazil
author Santos, Linaldo Severino
author_facet Santos, Linaldo Severino
Barros Silva, Helena Paula
Pereira, Eugênia Cristina Gonçalves
Silva, Hewerton Alves
author_role author
author2 Barros Silva, Helena Paula
Pereira, Eugênia Cristina Gonçalves
Silva, Hewerton Alves
author2_role author
author
author
dc.contributor.author.fl_str_mv Santos, Linaldo Severino
Barros Silva, Helena Paula
Pereira, Eugênia Cristina Gonçalves
Silva, Hewerton Alves
dc.subject.por.fl_str_mv Cobertura vegetal
Mancha de cerrado
Perfil topográfico
Semiárido de Pernambuco
Vegetation coverage
Cerrado patches
Topographic profile
Semi-arid region of Pernambuco
topic Cobertura vegetal
Mancha de cerrado
Perfil topográfico
Semiárido de Pernambuco
Vegetation coverage
Cerrado patches
Topographic profile
Semi-arid region of Pernambuco
description The semi-arid Northeast is one of the least known Brazilian regions in terms of vegetative diversity since claims of there being few plants endemic to the Caatinga are unjustly propagated. However, although this biome has suffered a lot through anthropic action, it presents a great diversity of vegetational types, including disjunctions of other biomes in exceptional areas, such as humid brejos de altitude, which are present as isolated patches in the landscape of the semi-arid Northeast. Thus, in this study, an analysis was made to differentiate the vegetation coverage along a topographic profile, in a spatial transect of the southern Agreste region of Pernambuco, comprising portions of the municipalities of Águas Belas, Iati and Saloá, through 10 plots established along this topographic profile. Application of the Normalized Difference Vegetation Index (NDVI) showed the variation of values as a function of the topography, revealing that in depression areas, where drier caatinga is observed, the lowest value of NDVI was obtained (0.18). On the other hand, in the areas of higher relief, where montane forests and cerrado develop, the highest values were found (0.49), thus showing the influence of topography on the distribution of humidity and vegetational features.
publishDate 2020
dc.date.none.fl_str_mv 2020-05-18
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://seer.ufu.br/index.php/sociedadenatureza/article/view/45721
10.14393/SN-v32-2020-45721
url https://seer.ufu.br/index.php/sociedadenatureza/article/view/45721
identifier_str_mv 10.14393/SN-v32-2020-45721
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://seer.ufu.br/index.php/sociedadenatureza/article/view/45721/28930
https://seer.ufu.br/index.php/sociedadenatureza/article/view/45721/28931
dc.rights.driver.fl_str_mv Copyright (c) 2020 Helena Paula Barros Silva
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Helena Paula Barros Silva
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Uberlândia
publisher.none.fl_str_mv Universidade Federal de Uberlândia
dc.source.none.fl_str_mv Sociedade & Natureza; Vol. 32 (2020); 335-345
Sociedade & Natureza; v. 32 (2020); 335-345
1982-4513
0103-1570
reponame:Sociedade & natureza (Online)
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Sociedade & natureza (Online)
collection Sociedade & natureza (Online)
repository.name.fl_str_mv Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv ||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br
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