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Table 4 Natural Resources Conservation Service (NRCS) soil loss tolerance rates. (From McCormack et al. 1979, NRCS 1993)

From: Post-Wildland Fire Desertification: Can Rehabilitation Treatments Make a Difference?

Soil erosion class Soil loss Mg ha−1
Tolerable (very low) <6.7
Low 6.7 to 11.2
Moderate 11.2 to 22.4
High 22.4 to 33.6
Severe >33.6