Why is it necessary to prevent soil erosion and how can it be done?
Answers
Answer:
Soil erosion affects soil health and productivity by removing the highly fertile topsoil and exposing the remaining soil. It decreases agricultural productivity, degrades ecosystem functions and amplifies hydrogeological risk, such as landslides or floods.Topsoil, which lies closest to the surface of the land, contains essential nutrients for crops. It is this layer of soil that is endangered by wind and water erosion. Soil erosion decreases soil fertility, which can negatively affect crop yields. ... Once soil erosion occurs, it is more likely to happen again.
Answer:
Soil erosion is the natural process in which the topsoil of a field is carried away by physical sources such as wind and water.”
The various methods for preventing soil erosion are:
1.Preventing excessive grazing.
2.Prevention of deforestation.
3.Plantation of trees and plants.
4.Mulch matting can be used to reduce erosion on the slopes.
5.Put a series of fibre logs to prevent any water or soil from washing away.