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• comprised 16.40 percent of the ground cover encountered in the 1985 Reclamation <br />Area. No rock was recorded in the cover sampling. <br />' Herbaceous Productiou <br />' Total herbaceous production on the 1985 Reclamation Area was 480.0 g/m2 (4278.6 <br /> Ib/ac). Perennial grasses dominated herbaceous production, accounting for 438.6 g/m2 <br /> (3909.6 ]b/ac) or 91.4 percent of total herbaceous production. Annual grasses <br />2 <br />' (76.6 lb/ac), or 1.8 percent to herbaceous production in this area. <br />contributed 8.6 g/m <br /> Perennial and annual forts were nearly equally represented in the production sampling <br /> in this area. Perennial forts provided 17.9 g/m2 (159.6 Ib/ac), or 3.7 percent to <br />' herbaceous production, while annual forts accounted for 14.8 g/m2 (131.9 lb/ac) of <br /> the reference area herbaceous production. Annual forts provided 3.1 percent of the <br />' total herbaceous production in this area. <br /> Species Diversity <br />' <br /> Within the 1985 Reclamation Area three lifeforms were represented. The total number <br /> of species encountered during cover sampling was nineteen. The sampling encountered <br /> 12 species of perennial grasses, one annual grass species, three annual forts, two <br /> perennial forts, and one succulent species. Of the species encountered on the 1985 <br /> Reclamation Area, 11 were native and eight were introduced. Perennial species <br />' <br />• outnumbered annual species by fifteen to four. Seasonality of 1985 Reclamation Area <br /> species was split between cool season, warm season and evergreen species. Eight <br />' graminoids were cool season species and five were warm season species. All fort <br />species were identified as cool season. The succulent species was evergreen. <br />' Of the species encountered, nine perennial grasses represented greater than three <br />percent relative cover. These species included; Bromus marginatus (24.32%), <br />Calamovilfa longifolia (20.21%), Agropyron cristatum (15.75%), Poa compressa <br />' (7.19%), Sporobolus cryptandrus (5.82%), Andropogon hallii (5.14%), ,4gropyron <br />dasystachyum (4.79°6), Bromus tectorum (4.45%), and Bouteloua gracilis (3.42%). <br />' 1986 RECLAMATION AREA <br />' The 1986 Reclamation Area encompasses approximately 47 acres of reclaimed pit in <br />the central area of the Keenesburg Mine permit area. The 1986 Reclamation Area is <br />' composed of three parcels (west, central, and east) separated by north-south haul road <br />comdors. This area is nearly flat with a gentle slope (< 1 °) to the north and east. <br />Reclamation and coincident revegetation within this area took place in 1986. Replaced <br />' soils were generally sandy in texture. Specific sampling information for the 1985 <br />Reclamation Area is contained in Table 4 and Table 8. <br />• <br />-8- <br />