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i • Vegetative litter (prior years growth, dead wood, and other biologic organic material) comprised 53.00% ground cover within the 1987 Reclamation Area. Bare soil comprised 23.00`Yo of the ground cover encountered in the 1987 Reclamation Area. Herbaceous Production 'iotai herbaceous production on the 198/ Reclamation Area was 135.39 g/m2 (1206.84 lb/ac). Perennial grasses dominated herbaceous production, contributing 134.03 g/m2 (1194.'71 lb/ac) or 99 percent of total herbaceous production. Annual grasses contributed 0.03 g/m2 (0.26 lb/ac), or 0.02 percent to herbaceous production in this area. Perennial forbs were present in the production sampling in this area and contributed 0.80 g/m2 (7.13 lb/ac), accounting for 0.6 percent of the total mean herbaceous production. Annual forbs accounted for 0.53 g/m2 (4.7216/ac) and 0.4 percent of total herbaceous production. Species Diversity Within the 1987 Reclamation Area four lifeforms were represented; graminoids, forbs, succulents, and woody shrubs. The lifeforms included seven species of perennial grasses, four annual forbs, one succulent, and one woody shrub. Of the species encountered on the 1987 Reclamation Area, ten were native and three were introduced. • Perennial and biennial species outnumbered annual species by ten to three. Seasonality of 198? Reclamation Area sY~~:2:. ~.~:.s sp: bc:.~:.:.: cool :,;,aso.~, warm season, and evergreen species. Three graminoids were cool season species and four were warm season species. With the exception of Helianthus annuus, all forb species were identified as cool season. The succulent and shrub species were evergreen. Five perennial grasses represented greater than three percent relative cover. These species included; Sporobo/us cryptandrus with S I.45% relative cover, Calamovi/fa longifo/ia with 21.58% relative cover, Andropogon hal/ii, with 7.47% relative cover, Agropyron cristatum providing 4.98% relative cover, and Bromus marginatus with 3.32%4 relative cover . COIViPARISON OF RECLAIMED AREAS AND REFERENCE AREA The monitoring of the revegetated areas allows for the identification of vegetation community development trends during the extended liability period. Comparison of the reclaimed area mean values for vegetation cover, herbaceous production, and species composition illustrates whether revegetation has been successful, or whether additional measures need to be initiated to enhance vegetation community development. The tables'below allow the comparison of the mean parameter values with the standard to be achieved, either from the reference area in the case of vegetation cover or herbaceous production, or the established standard for species composition. -ia J