Why do fires increase the risk of landslides?



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    Fires can cause an increase in landslides because of their destructive force on the anchors of many areas, the plants. When a fire tears through a region, it burns nearly every form of vegetation from the tallest trees to the tiniest grass. When these plants die, so do their roots, which traditionally hold the soil firm and in place. As it takes many years for the larger plants to regrow, the soil remains loose and volatile, making it susceptible to landslides. They are more common just after a fire because even within a few days, the seed bank, which was activated by the fire, begins to sprout. Even the smallest and most primitive weeds can form basic root structures that help hold the soil in place until larger vegetation is able to take root and thrive as it once did, making the soil safe once again.

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