REVISED UNIVERSAL SOIL LOSS EQUATION

Soil

ØData describes base soil conditions for unit plot conditions

ØData include erodibility value, soil texture, hydrologic soil group of undrained soil, efficient subsurface drainage, time to full soil consolidation, rock cover

ØErodibility nomograph available to estimate soil erodibility factor K

ØData available from NRCS soil survey database

ØName and same


	Try to use NRCS data if possible.
	Use the erodibility nomograph for severely disturbed conditions.
	Be alert to special soil conditions such as volcanic soils.
	Don’t apply RUSLE2 to organic soils.
	Remember, data are for unit plot condition. RUSLE2 cover-management factor takes into account differences between actual field condition and unit plot conditions.