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Competency Area 5: Soil conservation AEM

PO 42. Understand how soil types differ in soil erodibility.

Soil texture, organic matter, and soil structure all affect erodibility. Silt particles are most easily removed in erosion, because sand particles are big, while clay particles are typically better aggregated than silt particles in macro-aggregates. Greater organic matter causes soils to become less erodible. Improved soil aggregate stability causes soils to be less erodible.