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• Vegetation Cover <br />Total vegetation cover of the 1998 reseeded or interseeded areas was the highest of the <br />revegetated areas sampled in 1999 with 46.40 percent. Graminoids provided 38.40 <br />percent mean cover (83.89% relative cover) and forbs accounted for 8.00 percent mean <br />cover (16.11% relative cover). No succulents or woody shrubs were encountered during <br />cover sampling in the 1998 reseeded or interseeded areas. Total cover values were <br />vaziable between the individual areas within the 1998 reseeded or interseeded areas. The <br />lowest total vegetation cover was found in the area west of the dugout (36%) and the <br />highest mean cover was encountered in the south of'87 area (53% average). Two species <br />provided cover throughout the reseeded or interseeded areas, Bromus tectorum and <br />Calamovi ja longifolia. <br />Within the 1998 reseeded or interseeded areas, Bromus tectorum accounted for the <br />highest overall cover with 28.40 percent mean cover and 58.39 percent relative cover. <br />Calamovi/ja longijolia provided the second highest species cover with 4.80 percent mean <br />cover and 10.07 percent relative cover. The warm season perennial grass Bouteloua <br />gracilis contributed less total cover than Calomovilfa longifolia with 2.80 percent mean <br />cover, but accounted for greater relative cover (10.74%). This may be attributed to the <br />low spreading nature of Bouteloua gracilis. Three additional species contributed <br />significantly [o cover; Kochia scoparia with 2.80 percent mean cover (5.37% relative <br />cover), Helianthus annuus provided 2.40 percent mean total cover (5.37% relative cover), <br />• and Sisymbrium altissimum (tumble mustard) contributed 1.60 percent mean cover and <br />3.36 percent relative cover. <br />Vegetative litter (prior years growth, dead wood, and other biologic organic material) <br />comprised 39.20 percent ground cover overall within the 1998 reseeded or interseeded <br />areas, which was the highest percentage in any area sampled this year. Bare soil <br />comprised 14.40 percent of the ground cover. No rock or cryptogams were encountered <br />during the cover sampling in the 1998 reseeded or interseeded areas. <br />Herbaceous Production <br />Overall total herbaceous production within the 1998 reseeded or interseeded areas was <br />67.44 g/m2 (601.1 lb/ac), the lowest of all areas sampled. Contribution to herbaceous <br />production was nearly evenly split between perennial grasses, annual grasses, and annual <br />forbs. Annual grasses contributed 24.84 g/m2 (221.4 16/ac) or 37 percent of total <br />herbaceous production. Perennial grasses contributed 21.88 g/m2 (195.0 Ib/ac) to <br />herbaceous production in this area (32.4% of total herbaceous production). Annual forbs <br />provided 20.08 g/m2 (179.0 Ib/ac), which was 29.8 percent of the total mean herbaceous <br />production. Perennial forbs provided the smallest lifeforro contribution to herbaceous <br />production in the f 998 reseeded or interseeded areas with 0.64 g/m2 (5.7 Ib/ac) or 0.9 <br />percent of total herbaceous production. <br /> <br />-11- <br />