Northeast Region Certified Crop Adviser (NRCCA) Study Resources

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In This Section

• PO 39 Erosion
• PO 40 Consequences of erosion & sedimentation
• PO 41.1-2 Inter-rill & rill erosion
• PO 41.3-4 Gully & streambank erosion
• PO 42 Erodibility
• PO 43 Climatic effects on erosion
• PO 44 Slope effects on erosion
• PO 45 RUSLE
• PO 46 Erosion reduction with agronomy
• PO 47.1-2 Structural conservation 1
• PO 47.3-4 Structural conservation 2
• PO 47.5-6 Structural conservation 3
• PO 48 Tillage
• PO 49.0 Tillage systems
• PO 49.1-2 Plow-till / no-till
• PO 49.3-5 Mulch-till / ridge-till / zone tillage
• PO 51.1-2 Adaptability of tillage systems 1
• PO 51.3-4 Adaptability of tillage systems 2
• PO 52 Tillage practices
• PO 53 Tillage systems
• PO 54 Soil Tilth
• PO 55. Tillage conditions
• Summary

Competency Area 5: Soil conservation AEM

PO 45. Explain the Revised Universal Soil Loss Equation (RUSLE).

The Natural Resources Conservation Service (NRCS) uses the Revised Universal Soil Loss Equation (RUSLE) to calculate soil loss by erosion as a function of 5 factors:

A = R × K × LS × C × P

Where:

A = annual soil loss (tons/acre/yr)

R = erosivity of rainfall

K = erodibility of the soil

LS = slope length/steepness

C = cropping and management factors

P = erosion control practices

Go to: www.iwr.msu.edu/rusle/   for an example of how RUSLE works