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Marinho AAR, Gois GD, Oliveira-Júnior JFD, Correia Filho WLF, Santiago DDB, Silva Junior CAD, Teodoro PE, de Souza A, Capristo-Silva GF, Freitas WKD, Rogério JP. Temporal record and spatial distribution of fire foci in State of Minas Gerais, Brazil. J Environ Manage 2021; 280:111707. [PMID: 33349512 DOI: 10.1016/j.jenvman.2020.111707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 10/05/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
The objectives of this study are: (i) to evaluate the space-temporal variability of fire foci by environmental satellites, CHIRPS and remote sensing products based on applied statistics, and (ii) to identify the relational pattern between the distribution of fire foci and the environmental, meteorological, and socioeconomic variables in the mesoregions of Minas Gerais (MG) - Brazil. This study used a time series of fire foci from 1998 to 2015 via BDQueimadas. The temporal record of fire foci was evaluated by Mann-Kendall (MK), Pettitt (P), Shapiro-Wilk (SW), and Bartlett (B) tests. The spatial distribution by burned area (MCD64A1-MODIS) and the Kernel density - (radius 20 km) were estimated. The environmental variables analyzed were: rainfall (mm) and maximum temperature (°C), besides proxies to vegetation canopy: NDVI, SAVI, and EVI. PCA was applied to explain the interaction between fire foci and demographic, environmental, and geographical variables for MG. The MK test indicated a significant increasing trend in fire foci in MG. The SW and B tests were significant for non-normality and homogeneity of data. The P test pointed to abrupt changes in the 2001 and 2002 cycles (El Niño and La Niña moderated), which contributes to the annual increase and in winter and spring, which is identified by the Kernel density maps. Burned areas highlighted the northern and northwestern regions of MG, Triângulo Mineiro, Jequitinhonha, and South/Southwest MG, in the 3rd quarter (increased 17%) and the 4th quarter (increased 88%). The PCA resulted in three PCs that explained 71.49% of the total variation. The SAVI was the variable that stood out, with 11.12% of the total variation, followed by Belo Horizonte, the most representative in MG. We emphasize that the applied conceptual theoretical model defined here can act in the environmental management of fire risk. However, public policies should follow the technical-scientific guidelines in the mitigation of the resulting socioeconomic - environmental damages.
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Affiliation(s)
- Ana Aguiar Real Marinho
- Department of Engineering Surveying and Cartography, Federal Rural University of Rio de Janeiro (UFRRJ), 23897-000, Seropédica, Rio de Janeiro, Brazil
| | - Givanildo de Gois
- Postgraduate Program in Environmental Technology - PGTA, Federal Fluminense University (UFF), 27255-250, Volta Redonda, Rio de Janeiro, Brazil
| | - José Francisco de Oliveira-Júnior
- Institute of Atmospheric Sciences (ICAT), Federal University of Alagoas (UFAL), 57072-260, Maceió, Alagoas, Brazil; Postgraduate Program in Biosystems Engineering (PGEB), Federal Fluminense University (UFF), Niterói, Rio de Janeiro, 24220-900, Brazil
| | | | - Dimas de Barros Santiago
- Postgraduate Program in Meteorology, Unidade Acadêmica de Ciências Atmosféricas (UACA), Federal University of Campina Grande (UFCG), 58429-140, Campina Grande, Paraíba, Brazil
| | | | - Paulo Eduardo Teodoro
- Federal University of Mato Grosso do Sul (UFMS), 79560-000, Chapadão do Sul, Mato Grosso do Sul, Brazil
| | - Amaury de Souza
- Federal University of Mato Grosso do Sul (UFMS), Mato Grosso do Sul, Brazil
| | | | - Welington Kiffer de Freitas
- Postgraduate Program in Environmental Technology - PGTA, Federal Fluminense University (UFF), 27255-250, Volta Redonda, Rio de Janeiro, Brazil
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