Not all forest fires have devastating effects.
Not all forest fires have devastating effects. Low- and moderate-severity forest wildfires can reduce the intensity of future conflagrations for as long as 20 years in certain climates, according to new research by the University of California, Davis.
The extent of reduced severity of these second fires, or reburns, and the duration of the moderating effect, varies by climate, forest type and other factors. But initial fires continue to mitigate future severity even during extreme weather, such as wind, high temperatures and drought, research published in the journal Ecological Applications finds.
The researchers used satellite remote sensing to study more than 700 reburn fires over the past 50 years throughout the western United States. The findings shed light on the positive effect some of these blazes can have on forest resilience and could play a key role in helping land managers decide where to focus risk reduction efforts while adapting to a changing climate.
Read More: University of California - Davis
An example of a low severity fire from a prescribed burn in a dry mixed conifer forest. (Photo Credit: Andrew Latimer / UC Davis)
