To help dry forests, fire needs to be just the right intensity, and happen more than once

Research into the ability of a wildfire to improve the health of a forest uncovered a Goldilocks effect -- unless a blaze falls in a narrow severity range, neither too hot nor too cold, it isn't very good at helping forest landscapes return to their historical, more fire-tolerant conditions.

from Top Environment News -- ScienceDaily https://ift.tt/cvaf0wy