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• Total vegetation cover averaged 56.6 percent while standing dead, litter, bare soil, and rock <br />cover averaged 1.1, 30.6, 9.7, and 2.0 percent, respectively. Species density averaged 27.5 <br />species per 100 sq. m. <br />Production <br />Alfalfa averaged 1,017.1 pounds of biomass production per acre (Table 5). All other vegetation <br />averaged 1,764.0 pounds per acre. Total biomass production averaged 2,781.8 pounds per <br />acre. <br />Shrub Density <br />Native shrubs averaged 101.2 individuals per acre (Table 6). Mountain snowberry accounted <br />for more than half of these while big sagebrush contributed more than one-quarter. Together, <br />silver sagebrush, Wood's rose (seedling and mature), rubber rabbitbrush, and Saskatoon <br />serviceberry comprised the remaining quarter. <br />1990 Reclaimed Areas (Photographs 8 through 11) <br />• yr <br />Native perennial cool season grasses were the dominant lifeform in this reclamation unit with <br />30.3 percent of total vegetation cover (Table 7). Agassiz bluegrass accounted for one-quarter <br />of this percentage, while together, thickspike wheatgrass, mountain brome, slender wheatgrass, <br />and basin wildrye provided half. Foxtail barley, sheep fescue, western wheatgrass, Canada <br />bluegrass, big bluegrass, beardless bluebunch wheatgrass, and green needlegrass comprised the <br />remaining quarter. Sun sedge (Carex pensylvanica ssp. heliophila), Montana wheatgrass, <br />bluebunch wheatgrass, and Nelson needlegrass were present. Introduced perennial cool season <br />grasses were second in dominance with 27.9 percent of total vegetation cover. Intermediate <br />wheatgrass contributed nearly two-thirds of this percentage. Together, smooth brome and <br />orchard grass accounted for nearly one-third. Desert wheatgrass, meadow brome, and Russian <br />wildrye were minor contributors. Timothy was also present. Introduced annual grasses, <br />Japanese brome and cheatgrass, averaged 1.9 percent of total vegetation cover. Common oats <br />(Avena fa ua), and wheat (Tri i m aestivum) were present. <br />Introduced annual and biennial torbs averaged 14.5 percent of total vegetation cover. Twolobe <br />speedwell accounted for more than half of this percentage. Together, prickly lettuce and Jim Hill <br />. 13 <br />