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This schematic illustrates
the position of each of the subfactor effects.
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Some of the subfactors
affect erosivity.
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Some of the subfactors
affect erodibility.
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These subfactors are land
use independent.
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RUSLE2 uses equations to
describe the effect of each subfactor and their interactions.
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The equations have parameter
values that are functions of the properties of the cover-management system,
such as percent canopy.
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Some of the effects of some
subfactors are immediately obvious, while other effects are not.
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For example, roots hold the
soil in place, die, and add biomass to the soil. The effect that may not be obvious is that
roots and their mass are an indirect indicator of plants removing soil
moisture that in turn reduces runoff.
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