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The 2002 reclamation areas had seven species contributing greater than three percent relative <br />cover this year. The species contributing greater than three percent relative cover included <br />• one perennial grass, one annual grass, two perennial forbs, one biennial forb, and two annual <br />forbs. These species included Kochia scoparia (30.18%), Bromus tectorum (21.95%), <br />Helianthus annuus (14.33%), Ambrosia psilostachya (8.23%), Melilotus officinalis (4.57%), <br />and Calamovilfa longifolia and Nuttallia nuda (3.35%). <br />3.1.2 2006 RECLAMATION AREA <br />The 2006 reclamation area encompasses 9.68 acres of reclamation in Area 30 within the <br />Keenesburg Mine permit area. Area 30 comprises a segment of reclamation in the former <br />"B" Pit with a gentle slope to the east. Initial revegetation with the permanent seed mix took <br />place in the autumn of 2006. Specific sampling information for the 2006 reclamation area is <br />contained in Tables 1, 3, and 4. <br />3.1.2.1 Vegetation Cover <br />Total vegetation cover of the 2006 reclamation areas was 53.20 percent. Graminoids <br />provided 46.00 percent mean cover (87.83% relative cover) and forbs accounted for 5.60 <br />percent mean cover (8.99% relative cover). Vegetation cover values from the transects were <br />variable from 34 to 62 percent. Oryzopsis hymenoides (Indian ricegrass) was encountered in <br />all transects, while Agropyron trachycaulum (slender wheatgrass) and Bromus tectorum were <br />found in 70 percent of transects. Five species were found in only one transect. <br />• Overall within the 2006 reclamation area, Oryzopsis hymenoides significantly dominated <br />vegetation cover, with contributions of 31.80 percent mean and 66.09 percent relative cover. <br />Four additional species contributed more than three percent relative cover including; Bromus <br />tectorum with 6.20 percent mean vegetation cover and 9.28% relative cover, Agropyron <br />trachycaulum contributing 3.80 percent mean total cover (6.38% relative cover), Calamovilfa <br />longifolia with 3.00 percent mean cover (4.35% relative cover), and Melilotus officinalis <br />providing 2.60 percent mean and 4.06 percent relative cover. <br />Vegetative litter (prior years growth, dead wood, and other biologic organic material) <br />comprised 28.80 percent ground cover overall within the 2006 reclamation area. Bare soil <br />provided 17.80 percent of the ground cover. Rock contributed 0.20 percent overall cover. <br />No cryptogams were encountered during the cover sampling in the 2006 reclamation area. <br />3.1.2.2 Herbaceous Production <br />Overall mean total herbaceous production within the 2006 reclamation area was 189.59 g/m2 <br />(1690 lb/ac). <br />3.1.2.3 Species Composition <br />Cover sampling identified two lifeforms and 16 species within the 2006 reclamation area. <br />is The lifeforms included seven species of perennial graminoids, two annual grasses, two <br />perennial forbs, one biennial forb, and four annual forbs. Of the species encountered on the <br />Coors Energy Company KeenesWrg Mine Page 10 <br />2009 Revegetation Monitoring Report