Fires burn up the trees and vegetation, destroy man-made buildings, and weaken even the soil. With the weak soil and lack of strong roots to hold soil and debris down, rainfall in the following years will sweep up that debris and carry it down mountains or into drains. The resulting slide of debris and dead nature will block drainage pipes, destroy buildings, kill the plants in its path, and even take human lives.
Roots of live trees and plants help hold the soil in place. Grasses and other forbs and herbs have leaves and stems that break the fall of the raindrops and slow the flow of trickling water– they protect the surface of the soil. When the layer of protection is gone, the trickle becomes a torrent; duckyduh’s scenario ensues.
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