Burning in southwestern Brazilian Amazonia, 2016–2019
Autor: | Luiz E. O. C. Aragão, Irving Foster Brown, Philip M. Fearnside, Antonio Willian Flores de Melo, Ane Alencar, Ismael Santos da Silva, Igor Soares de Oliveira, Paulo Maurício Lima de Alencastro Graça, Eric de Souza Nascimento, Adriele Karlokoski, Marllus Rafael Negreiros de Almeida, Jessica Gomes da Costa, Paulo M. Brando, Sonaira Souza da Silva, Francisco Salatiel Clemente de Souza, Thiago Fonseca Morello, Moises Parreiras Pereira, Liana O. Anderson |
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Rok vydání: | 2021 |
Předmět: |
Conservation of Natural Resources
Environmental Engineering Amazon rainforest Agroforestry Amazonian 0208 environmental biotechnology 02 engineering and technology General Medicine Forests 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Fires Fire risk Trees Wildfires 020801 environmental engineering Geography Fire frequency Deforestation Acre Waste Management and Disposal Brazil 0105 earth and related environmental sciences Burn scar |
Zdroj: | Journal of Environmental Management. 286:112189 |
ISSN: | 0301-4797 |
Popis: | Fire is one of the most powerful modifiers of the Amazonian landscape and knowledge about its drivers is needed for planning control and suppression. A plethora of factors may play a role in the annual dynamics of fire frequency, spanning the biophysical, climatic, socioeconomic and institutional dimensions. To uncover the main forces currently at play, we investigated the area burned in both forested and deforested areas in the outstanding case of Brazil's state of Acre, in southwestern Amazonia. We mapped burn scars in already-deforested areas and intact forest based on satellite images from the Landsat series analyzed between 2016 and 2019. The mapped burnings in already-deforested areas totalled 550,251 ha. In addition, we mapped three forest fires totaling 34,084 ha. Fire and deforestation were highly correlated, and the latter occurred mainly in federal government lands, with protected areas showing unprecedented forest fire levels in 2019. These results indicate that Acre state is under increased fire risk even during average rainfall years. The record fires of 2019 may continue if Brazil's ongoing softening of environmental regulations and enforcement is maintained. Acre and other Amazonian states must act quickly to avoid an upsurge of social and economic losses in the coming years. |
Databáze: | OpenAIRE |
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