Laserfiche WebLink
Total vegetation cover for the 1996 reclamation was 42.4%. Standing dead, litter, bare soil, and <br />• rock accounted for 2.4, 12.2, 33.2, and 9.8 percents respectively. Average species density was <br />24.8 species per 100 sq.m. <br />PRODUCTION <br />(Table 5) <br />Herbaceous production for alfalfa averaged 155.2 pounds per acre. Herbaceous production for <br />all other species averaged 2,189.4 pounds per acre for a combined total herbaceous production <br />value of 2,344.7 pounds per acre. <br />WOODY PLANT DENSITY <br />(Table 6) <br />Total woody plant density averaged 4,281.7 individuals per acre, composed entirely of native <br />shrubs. Rubber rabbitbrush (Chrysothamnus nauseosus) seedlings and mature individuals <br />combined averaged 3982.2 stems per acre while big sagebrush accounted for the remaining <br />299.5 stems/acre. <br />1998-1999 Reclaimed Area <br />• (Photographs 9-12) <br />COVER <br />(Table 7) <br />Native perennial forbs and native perennial cool season grasses were co-dominant in this area in <br />2003, measuring 19.7 percent total vegetation cover. Blue flax (Adenolinum lewisir) was the most <br />common native perennial forbs with 10.8 percent total vegetationeover. Several otherforbs were <br />present in lower abundance, such as Western yarrow (Achilles lanulosa) and Rocky Mountain <br />penstemon (Penstemon strictus). Thickspike wheatgrass and Western wheatgrass, native <br />perennial cool season grasses, accounted for 6.10 and 4.53 percent of total vegetation cover, <br />respectively. Eleven other species were also present, measuring less than 3% total vegetation <br />cover. Also common were introduced perennial cool season grasses, comprising 19% total <br />vegetation cover. The dominant grass in this lifeform was orchard grass (Dactylis glomerata) with <br />12.2 percent total vegetation cover. Intermediate wheatgrass contributed an additional 4.36 <br />percent. Introduced perennial forbs accounted for 15.2% total vegetation cover, with alfalfa <br />composing the bulk of the lifeform. 13.4 percent total vegetation cover was made up of <br />introduced annual and biennial forbs. Jim Hill mustard comprised 4.88 percent, twolobe <br />speedwell measured 3.66 percent, and pennycress added an additional 2.09 percent total <br />• vegetation cover. Several other species measured less than one percent total vegetation cover. <br />8 <br />