Question

How does contour,bonnding and plouging prevents soil erosion?

Answer 1

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1)Countour Bunding
On hill sides,stones are used to build barriers across the slope,following countours. Countours are imaginary lines connecting places that lie at the same altitude. Trenches are made in front of the barriers to collect water. The rainwater gets collected in the trenches,which otherwise would have eroded the soil. It is also called countour barrier.

2)Plugging
Rocks are piled up to slow down the flow of water. This prevents erosion by plugging the gullies to prebent soil loss.

Answer 2

1)Countour Bunding
On hill sides,stones are used to build barriers across the slope,following countours. Countours are imaginary lines connecting places that lie at the same altitude. Trenches are made in front of the barriers to collect water. The rainwater gets collected in the trenches,which otherwise would have eroded the soil. It is also called countour barrier.

2)Plugging
Rocks are piled up to slow down the flow of water. This prevents erosion by plugging the gullies to prebent soil loss.