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Assessing the Wildfire Activity in the Protected Areas of the Amazon Basin, General Assembly EGU 2021

Da Ponte, Emmanuel and Alcasena, Fermin and Bhagwat, Tejas and Zhongyang, Hu (2021) Assessing the Wildfire Activity in the Protected Areas of the Amazon Basin, General Assembly EGU 2021. EGU General Assembly 2021, 19 - 30 April 2021, Vienna, Austria - Online. doi: 10.5194/egusphere-egu21-7200.

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Abstract

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.

Item URL in elib:https://elib.dlr.de/143690/
Document Type:Conference or Workshop Item (Speech)
Title:Assessing the Wildfire Activity in the Protected Areas of the Amazon Basin, General Assembly EGU 2021
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Da Ponte, EmmanuelEmmanuel.DaPonte (at) dlr.deUNSPECIFIED
Alcasena, Ferminferminalcasena (at) gmail.comUNSPECIFIED
Bhagwat, TejasTejas.Bhagwat (at) dlr.deUNSPECIFIED
Zhongyang, Huz.hu (at) uu.nlUNSPECIFIED
Date:19 April 2021
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.5194/egusphere-egu21-7200
Status:Published
Keywords:Wildfire, Amazon Basin, Protected Areas
Event Title:EGU General Assembly 2021
Event Location:Vienna, Austria - Online
Event Type:international Conference
Event Dates:19 - 30 April 2021
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Remote Sensing and Geo Research
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface Dynamics
Deposited By: Da Ponte, Emmanuel
Deposited On:21 Sep 2021 12:58
Last Modified:21 Sep 2021 12:58

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