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Why we see floods following fires: A tale of two extremes

Why we see floods following fires: A tale of two extremes

Wildfires can alter landscapes in a few ways; they remove vegetation that would otherwise provide stabilization and absorption to the ground, and they can alter the soil composition itself. If a fire burns hot enough, or is persistent enough, it can change some compounds in the soil to make the soil hydrophobic. Meaning any heavy rainfall that occurs in the affected area will simply pool on the ground surface, as the soil will repel the water.