How can you check soil erosion?
Describe any two methods in detail.
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4
Answer:
- Ploughing along the contour lines can decelerate the flow of water down the slopes. This is called contour ploughing.
- Steps can be cut out on the slopes making terraces. Terrace cultivation restricts erosion.
- Large fields can be divided into strips. Strips of grass are left to grow between the crops.
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7
Answer:
Contour ploughing,building terraces that intercept and stop downward movement of soil. Netting is a temporary form of erosion control. Maintaining plant cover reduces wind speed. Growing crops in intervals across a field of cereals,and using trees and shrubs as shelter belts or wind breaks are also helpful.
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