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Section 779.19 (a) Continued. <br />• elevation in the Eckman Park study area. It occurs on all aspects <br />but tends to be excluded on steep slopes. <br />Soils. Soils associated with the aspen type are azonal with high <br />permeability and low erosion hazard. <br />Vegetation. Aspen trees dominate the type with a generally dense <br />crown cover. Stem density averages about 0.22 stems per m2. <br />Understory shrub species are chokecherry, serviceberry, snowberry <br />with some rose, current, and Oregon grape. Total cover is 98% and <br />total production is 1551 pounds per acre. <br />Herbaceous species are dominated by forbs with grasses playing a <br />lesser role as far as diversity is concerned. (See Table 36, Aspen <br />Range Site, Percent Species Composition and Frequence, and Table 35, <br />Number of Species Encountered in 1979 Study). Fourteen of the 34 <br />• species encountered in this study are included in the seed mixture <br />to be used in revegetation. The remaining species either have not <br />proven useful in revegetation or are not available. <br />Big Sagebrush Range Site <br />Physiographic Features. This site is located on lower slopes with <br />relatively gentle topography. It is found throughout the study <br />area at all elevations but tends to dominate lower elevations with <br />similar topography to that of aspen. <br />Soils. Soils are moderately deep, well drained and loamy textured. <br />Erosion hazard is moderate on gentle slopes. Additionally, the <br />soils have a moderate water holding capacity and are amendable to <br />root penetration. <br />Vegetation. Big sagebrush dominates the overstory layer with a <br />• density of 1.62 plants per m2. Shrub cover is 7.4 percent. Forb <br />779-115 <br />