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Table 2. "C" Factors for Woodlands <br />• <br />Tree Canopy Forest Litter C. <br />% of Area l/ % of Area 2/ Undergrowth 3/ Factor <br /> <br />100-75 100-90 Managed 4/ 0.001 <br /> Unmanaged 4/ 0.003-0.011 <br />70-40 85-75 Managed 4/ 0.022-0.004 <br /> Unmanaged 4/ 0.01-0.04 <br />35-20 70-40 Managed 4/ 0.003-0.009 <br /> Unmanaged 4/ <br />1/ When tree canopy is less than 20%, the area will be considered as grassland or cropland <br />for estimating soil loss <br />21 Forest litter is assumed to be at least two inches deep over the percent ground surface <br />area covered <br />3/ Undergrowth is defined as shrubs, weeds, grasses, vines, etc., on the surface area <br />not protected by forest litter. <br />4/ Managed- grazing and fires controlled <br />Unmanaged- stands that are overgrazed or subjected to repeated burning <br />Table and values from USDA Technical Note Agronomy Note # 50, 1982 <br /> <br />-10-