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- Erosion:
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- Is the process in which, by the action of wind or water, soil particles are displaced and transported
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- Sediment:
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- Eroded material suspended in wind or water
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- Sedimentation:
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- The deposition of eroded material
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What are the types of Erosion?
- Splash:
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- Raindrop impact, dispersal and mobilization of soil Particles
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- Sheet:
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- Saturated soils, soil particles entrained in run-off water, uniform removal
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- Rill:
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- Increased topographic relief, higher run-off velocities, Soil Incision
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- Gully:
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- Concentrated flow, head cutting, down cutting
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- Stream Bank:
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- Natural drainage patterns, toe cutting, bank sloughing
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What influences Erosion?
- Rainfall Intensity and Duration
- Soil Erodibility Factor
- LS Factor (flow path Length & Slope)
What are the Benefits of Prevention Measures? (Cover Practices)
- Reduces rainfall impacts
- Reduces Surface water velocities
- Assists with infiltration
- Vegetative shoots trap sediment
- Roots retain soil particles
- Promotes permanent vegetation establishment
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