Land use changes and estimates of anthropogenic CO2 emissions in a watershed
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Sociedade & natureza (Online) |
Texto Completo: | https://seer.ufu.br/index.php/sociedadenatureza/article/view/44054 |
Resumo: | Anthropogenic interference has always impacted the Earth's surface, with greater intensity in recent times due to land-use changes, which contribute to the emission of greenhouse gases, especially carbon dioxide. In this sense, this study analyzes land-use transitions and CO2 emissions resulting from these actions in a watershed. For this, land use mappings were made in 2007, 2010, 2013, and 2016, along with estimates of the emissions from transitions. The calculation of net CO2 emissions included data from the transitions that occurred, from past vegetation, and pedological information. All procedures were performed with the aid of geoprocessing and remote sensing techniques, resulting in matrices of transitions and CO2 emissions,in addition to spatialized information. The forest category showed the highest conversion to other types of land use, with a loss of 208.86 ha between 2010 and 2013. In the observed period of nine years, carbonemissions were higher than its sequestration from the atmosphere, which shows the need for management and planning to mitigate the impacts caused by intense land-use changes in the studied watershed. |
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Land use changes and estimates of anthropogenic CO2 emissions in a watershedMudanças de uso da terra e estimativas de emissões antrópicas de CO2 em bacia hidrográficaGases do efeito estufaImpactos ambientaisMatriz de transiçãoGreenhouse gasesEnvironmental impactsTransition matrixAnthropogenic interference has always impacted the Earth's surface, with greater intensity in recent times due to land-use changes, which contribute to the emission of greenhouse gases, especially carbon dioxide. In this sense, this study analyzes land-use transitions and CO2 emissions resulting from these actions in a watershed. For this, land use mappings were made in 2007, 2010, 2013, and 2016, along with estimates of the emissions from transitions. The calculation of net CO2 emissions included data from the transitions that occurred, from past vegetation, and pedological information. All procedures were performed with the aid of geoprocessing and remote sensing techniques, resulting in matrices of transitions and CO2 emissions,in addition to spatialized information. The forest category showed the highest conversion to other types of land use, with a loss of 208.86 ha between 2010 and 2013. In the observed period of nine years, carbonemissions were higher than its sequestration from the atmosphere, which shows the need for management and planning to mitigate the impacts caused by intense land-use changes in the studied watershed.As interferências antrópicas sempre provocaram grandes impactos na superfície terrestre, com maior intensidade nos últimos tempos em função das mudanças do uso da terra, que contribuem para emissão dos gases do efeito estufa, em especial do dióxido de carbono. Neste sentido, o estudo objetivou analisar as transições do uso da terra e as emissões de CO2 resultantes dessas ações em uma bacia hidrográfica. Para isto realizou-se mapeamentos de uso da terra de 2007, 2010, 2013 e 2016, como também estimou as emissões decorrentes das transições. Para o cálculo das emissões líquidas de CO2 foram utilizados dados das transições que ocorreram, da vegetação pretérita e informações pedológicas. Todos os procedimentosforam realizados com auxílio de técnicas de geoprocessamento e sensoriamento remoto, resultando em matrizes de transições e de emissões do CO2, além das informações espacializadas. Observou-se que a categoria floresta apresentou a maior conversão para outros tipos de uso da terra, destacando-se uma perda de 208,86 ha entre 2010 a 2013. Em relação as emissões, verificaram-se que em nove anos ocorreram mais emissões do que sequestro de carbono da atmosfera, o que mostra a necessidade de medidas de gestão e planejamento que visem a amenização dos impactos ocasionados pela intensa modificações de uso terra na bacia estudada.Universidade Federal de Uberlândia2020-04-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.ufu.br/index.php/sociedadenatureza/article/view/4405410.14393/SN-v32-2020-44054Sociedade & Natureza; Vol. 32 (2020); 262-278Sociedade & Natureza; v. 32 (2020); 262-2781982-45130103-1570reponame:Sociedade & natureza (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUporenghttps://seer.ufu.br/index.php/sociedadenatureza/article/view/44054/28728https://seer.ufu.br/index.php/sociedadenatureza/article/view/44054/28729Copyright (c) 2020 Jocy Ana Paixão de Sousa, Elfany Reis do Nascimento Lopes, José Carlos de Souza, Roberto Wagner Lourençoinfo:eu-repo/semantics/openAccessde Sousa, Jocy Ana PaixãoLopes, Elfany Reis do Nascimentode Souza, José CarlosLourenço, Roberto Wagner2021-07-01T16:18:20Zoai:ojs.www.seer.ufu.br:article/44054Revistahttp://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 |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed Mudanças de uso da terra e estimativas de emissões antrópicas de CO2 em bacia hidrográfica |
title |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed |
spellingShingle |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed de Sousa, Jocy Ana Paixão Gases do efeito estufa Impactos ambientais Matriz de transição Greenhouse gases Environmental impacts Transition matrix |
title_short |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed |
title_full |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed |
title_fullStr |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed |
title_full_unstemmed |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed |
title_sort |
Land use changes and estimates of anthropogenic CO2 emissions in a watershed |
author |
de Sousa, Jocy Ana Paixão |
author_facet |
de Sousa, Jocy Ana Paixão Lopes, Elfany Reis do Nascimento de Souza, José Carlos Lourenço, Roberto Wagner |
author_role |
author |
author2 |
Lopes, Elfany Reis do Nascimento de Souza, José Carlos Lourenço, Roberto Wagner |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
de Sousa, Jocy Ana Paixão Lopes, Elfany Reis do Nascimento de Souza, José Carlos Lourenço, Roberto Wagner |
dc.subject.por.fl_str_mv |
Gases do efeito estufa Impactos ambientais Matriz de transição Greenhouse gases Environmental impacts Transition matrix |
topic |
Gases do efeito estufa Impactos ambientais Matriz de transição Greenhouse gases Environmental impacts Transition matrix |
description |
Anthropogenic interference has always impacted the Earth's surface, with greater intensity in recent times due to land-use changes, which contribute to the emission of greenhouse gases, especially carbon dioxide. In this sense, this study analyzes land-use transitions and CO2 emissions resulting from these actions in a watershed. For this, land use mappings were made in 2007, 2010, 2013, and 2016, along with estimates of the emissions from transitions. The calculation of net CO2 emissions included data from the transitions that occurred, from past vegetation, and pedological information. All procedures were performed with the aid of geoprocessing and remote sensing techniques, resulting in matrices of transitions and CO2 emissions,in addition to spatialized information. The forest category showed the highest conversion to other types of land use, with a loss of 208.86 ha between 2010 and 2013. In the observed period of nine years, carbonemissions were higher than its sequestration from the atmosphere, which shows the need for management and planning to mitigate the impacts caused by intense land-use changes in the studied watershed. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-04-27 |
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/44054 10.14393/SN-v32-2020-44054 |
url |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/44054 |
identifier_str_mv |
10.14393/SN-v32-2020-44054 |
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/44054/28728 https://seer.ufu.br/index.php/sociedadenatureza/article/view/44054/28729 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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); 262-278 Sociedade & Natureza; v. 32 (2020); 262-278 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 |
_version_ |
1799943981120880640 |