Environment & Ecology · Environment
What are the primary functions of gully plugs or check dams when constructed across small ephemeral streams?
- 1Eliminating soil disturbance and retaining crop residues on the surface
- 2Shielding the soil surface from raindrop impact and moderating temperature
- 3Creating nearly level platforms for cultivation on very steep slopes
- 4Slowing down water flow, trapping sediment, and stabilizing gully beds✓
Correct answer
Slowing down water flow, trapping sediment, and stabilizing gully beds
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