Lesson Media Objects
- Erosion is the wearing away of the land surface by agents that abrade, detach, remove, and deposit the material elsewhere. Erosion has especially been accelerated by human or anthropogenic activities.
- Erosion impacts soil, water, and air quality.
- Some farming practices reduce water quality as topsoil, rich in nutrients, is detached, transported and deposits into water bodies.
- Urbanization is another contributor to erosion as the construction and movement of material creates conditions for soil erosion.
- Erosion is commonly broken down into wind and water erosion though energy is the main factor in both.
- Climate, soil properties, and land management (along with others) influence water and water erosion.
Factors Influencing Erosion
|Water Erosion ||Wind Erosion |
|soil properties: aggregation /soil moisture||soil properties|
|soil cover||soil cover|
|land management||land management|
|topography||soil surface roughness|
| ||unsheltered distance|
| ||wind velocity and turbulence|
- The three processes in water and wind erosion are detachment, transport, and deposition.
- Types of water erosion include splash, sheet, rill, and gully.
- Types of wind erosion include suspension, saltation, and creep.
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