The Amazon in Flames: Fire and deforestation in 2019 and what’s to come in 2020

23 de April de 2020

Apr 23, 2020

Ane Alencar, Paulo Moutinho, Vera Arruda, Divino Silvério

With the most intense season of deforestation in the Amazon approaching, it is time to evaluate what happened in the region in 2019. It is also time to put strategies in place to combat deforestation, which in the first three months of this year increased significantly and indicates a worrying scenario ahead. To avoid repeating the 2019 fires, we need to make the right choices. And now.

* Update on April 29th, 2020, at Annex 2.

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Fire, fragmentation, and windstorms: A recipe for tropical forest degradation

Fire, fragmentation, and windstorms: A recipe for tropical forest degradation

Widespread degradation of tropical forests is caused by a variety of disturbances that interact in ways that are not well understood. To explore potential synergies between edge effects, fire and windstorm damage as causes of Amazonian forest degradation, we quantified vegetation responses to a 30‐min, high‐intensity windstorm that in 2012, swept through a large‐scale fire experiment that borders an agricultural field. Our pre‐ and postwindstorm measurements include tree mortality rates and modes of death, above‐ground biomass, and airborne LiDAR‐based estimates of tree heights and canopy disturbance (i.e., number and size of gaps). The experimental area in the southeastern Amazonia includes three 50‐ha plots established in 2004 that were unburned (Control), burned annually (B1yr), or burned at 3‐year intervals (B3yr).