Question

Soil is a valuable natural resource vulnerable to erosion during heavy rainfall in hilly terrain. Describe an effective method to reduce soil erosion in such areas.

Answer 1

An effective method to reduce soil erosion in hilly terrain during heavy rainfall is terracing. Terracing involves shaping the land into a series of stepped levels or terraces along the slopes. This method works by:

1. Slowing down water runoff: The flat surfaces of the terraces reduce the speed of water as it flows down the hill, minimizing its erosive power.

2. Increasing water absorption: The terraces allow more water to infiltrate into the soil, reducing the amount of water that runs off the surface.

3. Preventing soil loss: The raised edges of each terrace help trap soil that would otherwise be washed away, keeping the topsoil in place and preventing landslides.