A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ciências Ambientais (Online) |
Texto Completo: | https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005 |
Resumo: | Deforestation in the Amazon has reached alarming numbers in recent decades. The main factors causing this issue are not only large and medium-sized farmers, land grabbing, and illegal mining but also agrarian reform settlements, which may be contributing to the increase in deforestation rates. In this context, this study aims to evaluate the dynamics of land use in the rural settlement Santo Antônio do Matupi, located in the south of the State of Amazonas. This time-series study analyzed changes in land use and land cover from 1992 to 2018 using supervised classification techniques. In this scenario, simulations were carried out of the dynamics of land use for the period between 2028 and 2038 using the cellular automaton method of Markov (CA-MARKOV). The results show that, in the studied period, the greatest losses were in primary forests and that the most critical period of deforestation rates recorded was from 2004 to 2018 when 63.28% of the area was converted into pastures. Future scenarios based on the period studied indicate losses of up to 5.26% of areas occupied by forests by 2028, and a further 5.60% by 2038, exceeding 80% of the total area deforested in the settlement. This study demonstrates that the current model of land use and occupation practiced in the settlement is unsustainable and that future scenarios are worrying. This situation highlights a need to effectively implement programs that aim a sustainable rural development in the settlement, in addition to monitoring and controlling deforestation, designed for current managers and other sectors of the society concerned with the conservation and preservation of forests. |
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A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileiraDynamics of land use in a rural settlement in the Brazilian Legal Amazonbioma Amazônico; reforma agrária; desflorestamento; modulo CA-Markov.Amazon biome; agrarian reform; deforestation; CAMarkov model.Deforestation in the Amazon has reached alarming numbers in recent decades. The main factors causing this issue are not only large and medium-sized farmers, land grabbing, and illegal mining but also agrarian reform settlements, which may be contributing to the increase in deforestation rates. In this context, this study aims to evaluate the dynamics of land use in the rural settlement Santo Antônio do Matupi, located in the south of the State of Amazonas. This time-series study analyzed changes in land use and land cover from 1992 to 2018 using supervised classification techniques. In this scenario, simulations were carried out of the dynamics of land use for the period between 2028 and 2038 using the cellular automaton method of Markov (CA-MARKOV). The results show that, in the studied period, the greatest losses were in primary forests and that the most critical period of deforestation rates recorded was from 2004 to 2018 when 63.28% of the area was converted into pastures. Future scenarios based on the period studied indicate losses of up to 5.26% of areas occupied by forests by 2028, and a further 5.60% by 2038, exceeding 80% of the total area deforested in the settlement. This study demonstrates that the current model of land use and occupation practiced in the settlement is unsustainable and that future scenarios are worrying. This situation highlights a need to effectively implement programs that aim a sustainable rural development in the settlement, in addition to monitoring and controlling deforestation, designed for current managers and other sectors of the society concerned with the conservation and preservation of forests.O desmatamento na Amazônia vem alcançando números alarmantes nas últimas décadas, sendo os principais responsáveis por essas ações não apenas os grandes e médios fazendeiros, a grilagem de terra e o garimpo ilegal, como também os assentamentos de reforma agrária podem estar contribuindo com o aumento nas taxas de desmatamento. Diante desse contexto, este trabalho visa avaliar a dinâmica do uso da terra no assentamento rural Santo Antônio do Matupi, localizado no sul do estado do Amazonas. Foi realizado um estudo temporal sobre a mudança no uso e cobertura da terra de 1992 a 2018, com uso de técnica de classificação supervisionada e, a partir desse cenário, foram realizadas simulações na dinâmica do uso da terra para o período de 2028 a 2038 utilizando o método autômatos celulares de Markov (CA-MARKOV). Os resultados mostraram que no período estudado as maiores perdas foram nas florestas primárias, sendo o período mais crítico nas taxas de desmatamento registrado de 2004 a 2018, quando 63,28% da área foi convertida para a implementação de pastagens. Os cenários futuros, com base no período estudado, indicam perda de até 5,26% de áreas ocupadas por florestas até 2028, e mais 5,60% até 2038, superando 80% de área total desmatada no assentamento. O estudo demonstra que o atual modelo de uso e ocupação da terra praticado no assentamento é insustentável, e que os cenários futuros se mostram bastante preocupantes, o que evidencia a necessidade de implementação efetiva de programas voltados ao desenvolvimento rural sustentável no assentamento, além do monitoramento e controle do desmatamento voltado aos atuais gestores e demais setores da sociedade preocupados com a conservação e preservação das florestas.Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)2021-08-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/xmlhttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/100510.5327/Z217694781005Revista Brasileira de Ciências Ambientais (RBCIAMB); v. 56 n. 3 (2021): RBCIAMB - ISSN 2176-9478 - Setembro; 375-384Revista Brasileira de Ciências Ambientais (RBCIAMB); Vol. 56 No. 3 (2021): RBCIAMB - ISSN 2176-9478 - September; 375-3842176-94781808-4524reponame:Revista Brasileira de Ciências Ambientais (Online)instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)instacron:ABESenghttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005/644https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005/665Copyright (c) 2021 Brazilian Journal of Environmental Sciences (Online)http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDuarte, Miqueias LimaSousa, Jocy Ana Paixão deCastro, Amazonino Lemos deLourenço, Roberto Wagner2023-11-09T17:40:03Zoai:ojs.www.rbciamb.com.br:article/1005Revistahttp://www.rbciamb.com.br/index.php/Publicacoes_RBCIAMBhttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/oairbciamb@abes-dn.org.br||2176-94781804-4524opendoar:2023-11-09T17:40:03Revista Brasileira de Ciências Ambientais (Online) - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)false |
dc.title.none.fl_str_mv |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira Dynamics of land use in a rural settlement in the Brazilian Legal Amazon |
title |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira |
spellingShingle |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira Duarte, Miqueias Lima bioma Amazônico; reforma agrária; desflorestamento; modulo CA-Markov. Amazon biome; agrarian reform; deforestation; CAMarkov model. |
title_short |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira |
title_full |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira |
title_fullStr |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira |
title_full_unstemmed |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira |
title_sort |
A dinâmica do uso da terra em um assentamento rural na Amazônia Legal brasileira |
author |
Duarte, Miqueias Lima |
author_facet |
Duarte, Miqueias Lima Sousa, Jocy Ana Paixão de Castro, Amazonino Lemos de Lourenço, Roberto Wagner |
author_role |
author |
author2 |
Sousa, Jocy Ana Paixão de Castro, Amazonino Lemos de Lourenço, Roberto Wagner |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Duarte, Miqueias Lima Sousa, Jocy Ana Paixão de Castro, Amazonino Lemos de Lourenço, Roberto Wagner |
dc.subject.por.fl_str_mv |
bioma Amazônico; reforma agrária; desflorestamento; modulo CA-Markov. Amazon biome; agrarian reform; deforestation; CAMarkov model. |
topic |
bioma Amazônico; reforma agrária; desflorestamento; modulo CA-Markov. Amazon biome; agrarian reform; deforestation; CAMarkov model. |
description |
Deforestation in the Amazon has reached alarming numbers in recent decades. The main factors causing this issue are not only large and medium-sized farmers, land grabbing, and illegal mining but also agrarian reform settlements, which may be contributing to the increase in deforestation rates. In this context, this study aims to evaluate the dynamics of land use in the rural settlement Santo Antônio do Matupi, located in the south of the State of Amazonas. This time-series study analyzed changes in land use and land cover from 1992 to 2018 using supervised classification techniques. In this scenario, simulations were carried out of the dynamics of land use for the period between 2028 and 2038 using the cellular automaton method of Markov (CA-MARKOV). The results show that, in the studied period, the greatest losses were in primary forests and that the most critical period of deforestation rates recorded was from 2004 to 2018 when 63.28% of the area was converted into pastures. Future scenarios based on the period studied indicate losses of up to 5.26% of areas occupied by forests by 2028, and a further 5.60% by 2038, exceeding 80% of the total area deforested in the settlement. This study demonstrates that the current model of land use and occupation practiced in the settlement is unsustainable and that future scenarios are worrying. This situation highlights a need to effectively implement programs that aim a sustainable rural development in the settlement, in addition to monitoring and controlling deforestation, designed for current managers and other sectors of the society concerned with the conservation and preservation of forests. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-17 |
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://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005 10.5327/Z217694781005 |
url |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005 |
identifier_str_mv |
10.5327/Z217694781005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005/644 https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/1005/665 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Brazilian Journal of Environmental Sciences (Online) http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Brazilian Journal of Environmental Sciences (Online) http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/xml |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciências Ambientais (RBCIAMB); v. 56 n. 3 (2021): RBCIAMB - ISSN 2176-9478 - Setembro; 375-384 Revista Brasileira de Ciências Ambientais (RBCIAMB); Vol. 56 No. 3 (2021): RBCIAMB - ISSN 2176-9478 - September; 375-384 2176-9478 1808-4524 reponame:Revista Brasileira de Ciências Ambientais (Online) instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) instacron:ABES |
instname_str |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
instacron_str |
ABES |
institution |
ABES |
reponame_str |
Revista Brasileira de Ciências Ambientais (Online) |
collection |
Revista Brasileira de Ciências Ambientais (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ciências Ambientais (Online) - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
repository.mail.fl_str_mv |
rbciamb@abes-dn.org.br|| |
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