Biblioteca Digital de VanguardiaEnvironmental Analysis of Burning Occurrence in Northeast Area of Cerrado
Through the increase of the agricultural areas, the Cerrado biome has become one of the most favorable environments for the expansion of the Brazilian’s agricultural frontier. One of the consequences is the deforestation and the increase of the number of fires, leading to the degradation and suppres...
| Autores principales: | , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Portugués |
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Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
2017
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| Acceso en línea: | https://www.revistas.usp.br/rdg/article/view/131917 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42229 |
| _version_ | 1782334958545666048 |
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| author | Resende, Fernanda Cristina Cardozo, Francielle da Silva Pereira, Gabriel |
| author_facet | Resende, Fernanda Cristina Cardozo, Francielle da Silva Pereira, Gabriel |
| author_sort | Resende, Fernanda Cristina |
| collection | Repositorio |
| description | Through the increase of the agricultural areas, the Cerrado biome has become one of the most favorable environments for the expansion of the Brazilian’s agricultural frontier. One of the consequences is the deforestation and the increase of the number of fires, leading to the degradation and suppression of large areas of natural ecosystems in this biome. Consequently, the objective of this study was to analyze the spatial distribution of the burned areas in northeast area of Cerrado. For this purpose, the mapping of the burned areas in MODIS sensor images was performed for the 2012 to 2015 years, using the Linear Spectral Mixture Model (LSMM). The rainfall data from the Tropical Rainfall Measuring Mission (TRMM) were used to verify the influence of rainfall on burning occurrence. In addition, the occurrence and frequency of burnings were analyzed with the land use and land cover, with the conservation units and with the counties located in the study area. From the burned areas mapping in MODIS sensor images it was verified that the areas most affected by fires are Savannas, Grasslands and Woody Savannas. The precipitation data showed that the years with the lowest precipitation rates were also the years with the highest incidence of burned areas. The conservation unit most affected was the Uruçuí-Una, an Ecological Station located in Piauí, with an average of 36.5% of its area burned and the municipalities most affected are located mainly in the states of Piauí and Maranhão, with half of their areas burned in average. |
| format | info:eu-repo/semantics/article |
| id | clacso-CLACSO42229 |
| institution | CLACSO, Repositorio Digital |
| language | Portugués |
| publishDate | 2017 |
| publisher | Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas |
| record_format | greenstone |
| spelling | clacso-CLACSO422292022-03-17T15:14:29Z Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado Análise Ambiental da Ocorrência das Queimadas na Porção Nordeste do Cerrado Resende, Fernanda Cristina Cardozo, Francielle da Silva Pereira, Gabriel Queima de biomassa Uso e Ocupação da Terra Impactos MATOPIBA. Biomass Burning Land Use and Land Cover Impacts MATOPIBA Through the increase of the agricultural areas, the Cerrado biome has become one of the most favorable environments for the expansion of the Brazilian’s agricultural frontier. One of the consequences is the deforestation and the increase of the number of fires, leading to the degradation and suppression of large areas of natural ecosystems in this biome. Consequently, the objective of this study was to analyze the spatial distribution of the burned areas in northeast area of Cerrado. For this purpose, the mapping of the burned areas in MODIS sensor images was performed for the 2012 to 2015 years, using the Linear Spectral Mixture Model (LSMM). The rainfall data from the Tropical Rainfall Measuring Mission (TRMM) were used to verify the influence of rainfall on burning occurrence. In addition, the occurrence and frequency of burnings were analyzed with the land use and land cover, with the conservation units and with the counties located in the study area. From the burned areas mapping in MODIS sensor images it was verified that the areas most affected by fires are Savannas, Grasslands and Woody Savannas. The precipitation data showed that the years with the lowest precipitation rates were also the years with the highest incidence of burned areas. The conservation unit most affected was the Uruçuí-Una, an Ecological Station located in Piauí, with an average of 36.5% of its area burned and the municipalities most affected are located mainly in the states of Piauí and Maranhão, with half of their areas burned in average. Com a crescente demanda nos últimos anos por áreas agricultáveis ainda não exploradas, o bioma Cerrado se tornou um dos ambientes mais favoráveis para a expansão da fronteira agrícola. Uma das consequências consiste no desmatamento e no aumento do número de queimadas, ocasionando a degradação e supressão de extensas áreas de ecossistemas naturais do bioma. Neste contexto, o presente trabalho teve como objetivo principal analisar a distribuição espacial das áreas queimadas na porção nordeste do bioma Cerrado. Desta forma, foi realizado o mapeamento das áreas queimadas em imagens do sensor Moderate Resolution Imaging Spectroradiometer (MODIS), da plataforma Terra e Aqua, nos anos de 2012 a 2015 a partir do uso do Modelo Linear de Mistura Espectral (MLME). Os dados de precipitação do Tropical Rainfall Measuring Mission (TRMM) do produto 3B43 foram utilizados para verificar a influência das chuvas na ocorrência das queimadas. Além disso, analisou-se a ocorrência das queimadas com o uso e cobertura da terra, com as Unidades de Conservação (UC) e com os municípios da área de estudo. Foi verificado que as áreas mais atingidas por queimadas são de Savana, Savana Lenhosa e Gramíneas e os anos que apresentaram menores índices de precipitações também foram os anos que ocorreram maior incidência de queimadas. A unidade de conservação mais atingida foi a Estação Ecológica Uruçuí-Uma no Piauí, com uma média de 36,5% de sua área queimada e os municípios mais atingidos estão localizados principalmente nos estados do Piauí e Maranhão, apresentando em média metade de suas áreas queimadas. 2017-12-22 2022-03-17T15:14:29Z 2022-03-17T15:14:29Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.revistas.usp.br/rdg/article/view/131917 10.11606/rdg.v34i0.131917 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42229 por https://www.revistas.usp.br/rdg/article/view/131917/137129 Copyright (c) 2017 Fernanda Cristina Resende, Francielle da Silva Cardozo, Gabriel Pereira application/pdf Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas Revista do Departamento de Geografia; ##issue.vol## 34 (2017); 31-42 Revista do Departamento de Geografia; v. 34 (2017); 31-42 Revista do Departamento de Geografia; Vol. 34 (2017); 31-42 2236-2878 0102-4582 |
| spellingShingle | Queima de biomassa Uso e Ocupação da Terra Impactos MATOPIBA. Biomass Burning Land Use and Land Cover Impacts MATOPIBA Resende, Fernanda Cristina Cardozo, Francielle da Silva Pereira, Gabriel Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado |
| title | Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado |
| title_full | Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado |
| title_fullStr | Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado |
| title_full_unstemmed | Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado |
| title_short | Environmental Analysis of Burning Occurrence in Northeast Area of Cerrado |
| title_sort | environmental analysis of burning occurrence in northeast area of cerrado |
| topic | Queima de biomassa Uso e Ocupação da Terra Impactos MATOPIBA. Biomass Burning Land Use and Land Cover Impacts MATOPIBA |
| url | https://www.revistas.usp.br/rdg/article/view/131917 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42229 |