Soil loss from unadjusted USLE model

Soil loss from adjusted USLE model

Soil loss from isotopic analysis

Observations

Sample A

28.5 t/ha/year

12.1 - 20 t/ha/year

18.9 t/ha/year

In both sampling areas, the loss of soil obtained from USLE equation without adjustment is largely overestimated compared to the results

of isotopic analysis.

Sample B

57.1 t/ha/year

49.5 t/ha/year

51 t/ha/year