What method involves filling gullies with rocks and other materials to prevent them from enlarging?

What method involves filling gullies with rocks and other materials to prevent them from enlarging?

• A. Filling Gullies
• B. Afforestation
• C. Drip Irrigation
• D. Contour Plowing

Answer: (A)

Filling gullies is a direct, engineering approach to stopping gully erosion. When heavy rain creates or enlarges a gully, concentrating runoff in a narrow channel powers rapid erosion and widening the gap. By packing rocks and other materials into the gully, the flow is disrupted, velocity decreases, sediment can deposit, and the banks are stabilized. This physically narrows and blocks the channel, preventing further enlargement and protecting the land behind it. Other options work in different ways: afforestation reduces future erosion by improving interception and infiltration but doesn’t immediately fill existing gullies; contour plowing creates ridges to slow runoff on slopes but doesn’t address an open channel; drip irrigation improves water efficiency rather than channel stabilization.

Filling gullies is a direct, engineering approach to stopping gully erosion. When heavy rain creates or enlarges a gully, concentrating runoff in a narrow channel powers rapid erosion and widening the gap. By packing rocks and other materials into the gully, the flow is disrupted, velocity decreases, sediment can deposit, and the banks are stabilized. This physically narrows and blocks the channel, preventing further enlargement and protecting the land behind it.

Other options work in different ways: afforestation reduces future erosion by improving interception and infiltration but doesn’t immediately fill existing gullies; contour plowing creates ridges to slow runoff on slopes but doesn’t address an open channel; drip irrigation improves water efficiency rather than channel stabilization.