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• ssp. humilis) contributed the balance. Tumbling saltbush (A ri I araentea) and Fremont <br />goosefoot (Chenopodium fremontii) were present. Native shrubs, principally big sagebrush <br />(Seriphidium tridentatum), accounted for 2.6 percent of total vegetation cover. Mountain <br />snowberry (Symohoricarpos rotundifolius) was a minor contributor and rubber rabbitbrush <br />(Chrysothamnus nauseosus), Saskatoon serviceberry (Amelanchier Imo' p11~), Douglas <br />rabbitbrush (Chrysothamnus viscidiflorus), and bitterbrush (Purs tridentata) were <br />present. <br />Total vegetation cover averaged 57.9 percent while standing dead, litter, bare soil, and rock <br />cover averaged 1.0, 30.8, 7.8, and 2.5 percent, respectively. Species density averaged 28.4 <br />species per 100 sq.m. <br />Production <br />Alfalfa averaged 660.2 pounds of biomass production per acre (Table 2). All other vegetation <br />averaged 1,157.3 pounds of biomass production per acre. Total biomass production averaged <br />1,816.5 pounds per acre. <br />• Shrub Density <br />Native shrubs averaged 465.4 individuals per acre (Table 3). Big sagebrush accounted for <br />more than half of these while mountain snowberry contributed more than one-third. Saskatoon <br />serviceberry, Douglas rabbitbrush, and bitterbrush, provided the balance. <br />1987 Reclaimed Areas (Photographs 5 through 7) <br />Cover <br />Introduced perennial cool season grasses were the dominant lifeform in this unit with 45.1 <br />percent of total vegetation cover (Table 4). Intermediate wheatgrass accounted for four-fifths <br />of this percentage. Orchard grass contributed nearly one-tenth of this lifeform's total <br />vegetation cover. Smooth brome, meadow fescue, timothy, and Russian wildrye accounted for <br />the balance. Desert wheatgrass, and quackgrass ( ri i reoens) were also present. Native <br />perennial cool season grasses averaged 14.5 percent of total vegetation cover. Agassiz bluegrass <br />provided over one-quarter of this percentage. Together, slender wheatgrass and sheep fescue <br />contributed one-third. Canada bluegrass, basin wildrye, and thickspike wheatgrass were also <br />important. Mountain brome, foxtail barley, creeping wildrye (Leymus triticoides), western <br />• 11 <br />