Fatal Landslide

When a mountain slope is cleared up by humans for farming, not only the rain water flows down the slope quickly to cause flood, it also soaks the soil below the ground, increasing the moisture content of the soil to become fluid and weakens the soil binding strength. The outcome is often disastrous. 

This landslide killed dozen of people many years ago.

It is therefore important to keep the hill slope covered with vegetation, such as grass,plants, trees, etc., which buffers the rain from eroding the soil and at the same time absorbs the water so as to keep the soil as dry as possible.