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Competency Area 5: Soil conservation AEM

PO 41. Understand the different types of soil erosion

There are four types of water erosion:

  1. Inter-rill erosion: the movement of soil by rainsplash and its transport by thin surface flow whose erosive capacity is increased by turbulence generated by raindrop impact. The term sheet erosion is frequently used instead of inter-rill erosion, but it omits the concept of rain-splash and conveys the erroneous concept that runoff commonly occurs as a uniform sheet.
  2. Rill erosion: erosion by concentrated flow in small rivulets.
  3. Gully erosion
  4. Streambank  erosion

erosion rill.jpg

Rill erosion

Photo courtesy of NRCS