Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017
Autor(a) principal: | |
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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/36561 |
Resumo: | Despite its extensive native forest cover, land uses such as extensive pasture and forest cultivation are present in the Environmental Protection Area of the Serra da Mantiqueira (EPA-SM). Also noteworthy is the absence of a management plan, with a lack of environmental studies on its dynamics of land use and land cover. This paper aimed to evaluate the temporal variation of the forest cover for the EPA-SM, through Landsat-5/TM and Landsat-8/OLI orbital images classification and interpretation, between the years of 1999 and 2017. 1999 image was classified with a posterior manual actualization until 2017. Subsequently, landscape metrics were adopted to evaluate the fragmentation of native forests. As a result, an increase in forest cover (native and forest cultivation) was diagnosed by the expansion and emergence of new fragments, while the conversion of forests to other uses was low. In spite of this, native forests showed a reduction of their coverage percentage in relation to the total forest cover, and the landscape metrics showed fragmentation of the native forest. The significative number of new fragments of small extension may indicate, in certain cases, a positive prognosis for the class of native forest cover in growth, despite habitat fragmentation. |
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Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017Dinámica de la cobertura forestal en la Serra da Mantiqueira entre 1999 y 2017Dinâmica da cobertura florestal na Serra da Mantiqueira entre 1999 e 2017Conservation unitsForest coverageRemote sensing.Unidades de conservaciónCobertura forestalDetección remota.Unidades de conservaçãoCobertura florestalSensoriamento remoto.Despite its extensive native forest cover, land uses such as extensive pasture and forest cultivation are present in the Environmental Protection Area of the Serra da Mantiqueira (EPA-SM). Also noteworthy is the absence of a management plan, with a lack of environmental studies on its dynamics of land use and land cover. This paper aimed to evaluate the temporal variation of the forest cover for the EPA-SM, through Landsat-5/TM and Landsat-8/OLI orbital images classification and interpretation, between the years of 1999 and 2017. 1999 image was classified with a posterior manual actualization until 2017. Subsequently, landscape metrics were adopted to evaluate the fragmentation of native forests. As a result, an increase in forest cover (native and forest cultivation) was diagnosed by the expansion and emergence of new fragments, while the conversion of forests to other uses was low. In spite of this, native forests showed a reduction of their coverage percentage in relation to the total forest cover, and the landscape metrics showed fragmentation of the native forest. The significative number of new fragments of small extension may indicate, in certain cases, a positive prognosis for the class of native forest cover in growth, despite habitat fragmentation.A pesar de una extensa cobertura de bosque nativo, están presentes usos de la tierra, como pastos extensivos y cultivos forestales en el Área de Protección Ambiental de la Serra da Mantiqueira (APA-SM). Además, hay también ausencia de un plan de manejo, con pocos estudios ambientales sobre su dinámica de cobertura y usos de la tierra. Así, este artículo tuvo como objetivo evaluar la variación temporal de la cubertura forestal para el APA-SM, por medio de la clasificación e interpretación de imágenes orbitales de los sensores Landsat-5/TM y Landsat-8/OLI, entre los años de 1999 y 2017. Fue clasificada la imagen de 1999 y después se hizo una actualización manual hasta 2017. Posteriormente, en las imágenes clasificadas se adoptaron métricas del paisaje para evaluar la fragmentación de los bosques nativos. Como resultado, se diagnosticó un aumento en la cobertura forestal (bosques nativos y cultivos forestales) mediante la expansión y la aparición de nuevos fragmentos, mientras que la conversión de los bosques a otros usos fue baja. A pesar de esto, los bosques nativos mostraron una reducción de su porcentaje de cobertura en relación con la cubertura forestal total, y las métricas de paisaje resaltaron una fragmentación del bosque nativo. Sin embargo, la significativa cantidad de nuevos fragmentos de extensión pequeña puede indicar, en certas ocasiones, un pronóstico positivo para la clase de cobertura de bosque nativo en desarrollo, a pesar de la fragmentación del hábitat.Apesar da extensa cobertura florestal nativa, usos como pastagem extensiva e cultivo florestal também estão presentes na Área de Proteção Ambiental da Serra da Mantiqueira (APA-SM). Além disto, há também ausência de um plano de manejo, com pouco estudo ambiental sobre sua dinâmica de uso e ocupação. Este trabalho buscou avaliar a variação temporal da cobertura florestal para a APA-SM entre os anos de 1999 e 2017 utilizando interpretação de imagens orbitais dos sensores Landsat-5/TM e Landsat-8/OLI. A imagem de 1999 foi classificada com posterior atualização manual até o ano de 2017. Em seguida, buscando avaliar o nível de fragmentação das florestas nativas, foram adotadas métricas de paisagem nas imagens classificadas. Como resultado, foi diagnosticado um aumento da cobertura florestal (floresta nativa com floresta plantada) pela expansão e surgimento de novos fragmentos, enquanto que a conversão de florestas para outros usos foi baixa. Apesar disso, as florestas nativas apresentaram uma redução de seu percentual de cobertura em relação à cobertura florestal total e as métricas de paisagem evidenciaram fragmentação da floresta nativa. O significativo número de novos fragmentos de pequena extensão pode indicar, em determinados casos, prognóstico positivo para a classe de cobertura florestal nativa em crescimento, apesar da fragmentação do habitat.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/3656110.5433/2447-1747.2020v29n1p157GEOGRAFIA (Londrina); v. 29 n. 1 (2020); 157 - 1742447-1747reponame:Geografia (Londrina)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36561/26742Copyright (c) 2020 GEOGRAFIA (Londrina)http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessPetri, Caio ArlancheMaciel, Daniel AndradeFlores Junior, Rogério2022-09-20T15:55:42Zoai:ojs.pkp.sfu.ca:article/36561Revistahttps://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:2022-09-20T15:55:42Geografia (Londrina) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 Dinámica de la cobertura forestal en la Serra da Mantiqueira entre 1999 y 2017 Dinâmica da cobertura florestal na Serra da Mantiqueira entre 1999 e 2017 |
title |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 |
spellingShingle |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 Petri, Caio Arlanche Conservation units Forest coverage Remote sensing. Unidades de conservación Cobertura forestal Detección remota. Unidades de conservação Cobertura florestal Sensoriamento remoto. |
title_short |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 |
title_full |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 |
title_fullStr |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 |
title_full_unstemmed |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 |
title_sort |
Forest coverage dynamics in the Serra da Mantiqueira between 1999 and 2017 |
author |
Petri, Caio Arlanche |
author_facet |
Petri, Caio Arlanche Maciel, Daniel Andrade Flores Junior, Rogério |
author_role |
author |
author2 |
Maciel, Daniel Andrade Flores Junior, Rogério |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Petri, Caio Arlanche Maciel, Daniel Andrade Flores Junior, Rogério |
dc.subject.por.fl_str_mv |
Conservation units Forest coverage Remote sensing. Unidades de conservación Cobertura forestal Detección remota. Unidades de conservação Cobertura florestal Sensoriamento remoto. |
topic |
Conservation units Forest coverage Remote sensing. Unidades de conservación Cobertura forestal Detección remota. Unidades de conservação Cobertura florestal Sensoriamento remoto. |
description |
Despite its extensive native forest cover, land uses such as extensive pasture and forest cultivation are present in the Environmental Protection Area of the Serra da Mantiqueira (EPA-SM). Also noteworthy is the absence of a management plan, with a lack of environmental studies on its dynamics of land use and land cover. This paper aimed to evaluate the temporal variation of the forest cover for the EPA-SM, through Landsat-5/TM and Landsat-8/OLI orbital images classification and interpretation, between the years of 1999 and 2017. 1999 image was classified with a posterior manual actualization until 2017. Subsequently, landscape metrics were adopted to evaluate the fragmentation of native forests. As a result, an increase in forest cover (native and forest cultivation) was diagnosed by the expansion and emergence of new fragments, while the conversion of forests to other uses was low. In spite of this, native forests showed a reduction of their coverage percentage in relation to the total forest cover, and the landscape metrics showed fragmentation of the native forest. The significative number of new fragments of small extension may indicate, in certain cases, a positive prognosis for the class of native forest cover in growth, despite habitat fragmentation. |
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/36561 10.5433/2447-1747.2020v29n1p157 |
url |
https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/36561 |
identifier_str_mv |
10.5433/2447-1747.2020v29n1p157 |
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/36561/26742 |
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); 157 - 174 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_ |
1799315432345174016 |