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percent of the total mean herbaceous production. Annual forbs accounted for 1.93 <br />g/m2 (17.2 Ib/ac) and 2.4 percent of total herbaceous production. <br />Species Diversity <br />Within the 1987 Reclamation Area four lifeforms were represented; graminoids, forbs, <br />succulents, and woody shrubs. The lifeforms included seven species of perennial grass, <br />two perennial and three annual forbs, one succulent, and one woody shrub. Of the <br />species encountered on the 1987 Reclamation Area, thirteen were native and one was <br />introduced. Perennial species oufiumbered annual species by eleven to three. <br />Seasonality of 1987 Reclamation Area species was split between cool season, warm <br />season, evergreen, and deciduous species. Graminoids were nearly evenly split, three <br />were cool season, and four were warm season species. All forb species were identified <br />as cool season. The succulent was evergreen and the shrub species was deciduous. <br />Ten species (seven grasses, two forbs, and one woody shrub) represented greater than <br />three percent relative cover. These species included Calamovilfa longifolia (23.67%), <br />Bromus marginatus (21.89%), Bouteloua gracilis (14.20%), Ambrosia psilostachya <br />(7.10%), Agropyron cristatum (5.92%), Sporobolus cryptandrus (5.33%), Erigeron <br />be//idiastrum (4.73%), Andropogon hallii (5.33%), Artemesia li7ifolia (4.14%), and <br />Agropyron smithii (3.55%). <br />COMPARISON OF RECLAIMED AREAS AND REFERENCE AREA <br />The monitoring of the revegetated areas allows for the identification of vegetation <br />community development trends during the extended liability period. Comparison of the <br />reclaimed area values for vegetation cover, herbaceous production, and species <br />composition with the values from the reference area or standard, indicates whether <br />revegetation has been successful, or whether additional measures need to be initiated to <br />enhance vegetation community development. The tables below allow the comparison <br />of the parameter values with the standard to be achieved, either from the reference area <br />in the case of vegetation cover and herbaceous production, or the established standard <br />for species composition. <br /> <br />-11- <br />