EGU21-7200
https://doi.org/10.5194/egusphere-egu21-7200
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Assessing the wildfire activity in protected areas of the Amazon basin

Emmanuel Da Ponte1, Fermin Alcasena2, Tejas Bhagwat3, and Zhongyang Hu4
Emmanuel Da Ponte et al.
  • 1German Aerospace Center (DLR), Lax, Wesseling, Germany (emmanuel.daponte@dlr.de)
  • 2United States Department of Agriculture (USDA) Forest Service, Oregon State University, 321 Richardson Hall, Corvallis, OR 97331, United Sates,(ferminalcasena@gmail.com)
  • 3University of Goettingen, Department of Conservation Biology, Bürgerstrasse 50, 37073, Goettingen/Germany, (tejas.bhagwat@biologie.uni-goettingen.de)
  • 4Institute for Marine and Atmospheric Research, Ultrecht University, Ultrecht, Netherlands, (z.hu@uu.nl)

Despite  growing concerns regarding the Amazonian wildfires, the magnitude of the problem is poorly understood. In this study, we assessed the wildfire activity in the  protected natural sites (n= 428) of Bolivia, Brazil, Colombia, Ecuador, French Guyana, Guyana, Peru, Suriname, and Venezuela, encompassing an area of 1.4 million km2 of the Amazon basin. A 250 m resolution spectroradiometer sensor imaging (MODIS) was used to obtain land-use/land-cover (MODIS land use land cover product) changes and derive the wildfire activity data (ignition locations and burned areas (MODIS active fire products)) from 2001 to 2018. First, we characterized the mean fire return interval, wildfire occurrence, and empiric burn probability. Then, we implemented a transmission analysis to assess the burned area from incoming fires. We used transmission analysis to characterize the land use and anthropic activities associated to fire ignition locations across the different countries. On average, 867 km 2 of natural forests were burned in protected natural sites annually, and about 85 incoming fires per year from neighboring areas accounted for 10.5% (9,128 ha) of the burned area. The most affected countries were Brazil (53%), Bolivia (24%), and Venezuela (16%).Considerable amount of fire ignition points were detected in open savannas (29%) and grasslands (41%) , where the fire is periodically used to clear extensive grazing properties. The incoming fires from savannas were responsible for burning the largest forest areas within protected sites, affecting as much as 9,800 ha in a single fire event. In conclusion, we  discuss the potential implications of the main socioeconomic factors and environmental policies that could explain increasing trends of burned areas. Wildfire risk mitigation strategies include the fire ignition prevention in developed areas, fire use regulation in rural communities, increased fuels management efforts in the buffer areas surrounding natural sites, and the early detection system that may facilitate a rapid and effective fire control response. Our analysis and quantitative outcomes describing the fire activity represent a sound science-based approach for an well defined wildfire management within the protected areas of the Amazonian basin.

How to cite: Da Ponte, E., Alcasena, F., Bhagwat, T., and Hu, Z.: Assessing the wildfire activity in protected areas of the Amazon basin, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-7200, https://doi.org/10.5194/egusphere-egu21-7200, 2021.

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