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regimes. The grass species all provide the qualities for excellent erosion control and <br />livestock use. All four species of vegetation exhibit high utility towards the premine land <br />use. <br />It is important to note that the species exhibiting the greatest contribution to the premine <br />vegetative diversity is Kentucky Bluegrass, Poa pratensis, which is not considered a <br />native. It exhibits nearly 23% of the composition, over twice that of the next most <br />dominant species, Western Wheatgrass, Agopyron smithii, at nearly 11 %. <br />Species diversity for the postmine vegetative community will be determined in the same <br />manner as the premine inventory. Cover data will be collected using a point frame placed <br />in an unbiased manner. Overall, postmine data collection methods will be similar to <br />premine data collection methods. Relative cover values (composition) will be determined <br />for each species in the sampled portion of the reclaimed area. <br />A similar analysis of Hamer's January, 1985 Danforth Project data for the baseline <br />evaluation of the South Taylor Area (PR-02) yields a similar level of herbaceous <br />diversity: an average of 3 perennial grasses and 1 perennial forb for the three sampled <br />communities with relative cover values between 3% and 50%. These values are readily <br />observable on the summary table below that lists those taxa that exceed 3% relative cover <br />from each of the study's three vegetation communities. <br />The Number of Native Perennials with Between 3% and <br />500/o Relative Cover from the Dominant Communities of the <br />So. Taylor Area - Harner, 1985 <br /> Percent Relative Cover / Total No. <br />Species Sagebrush Mtn. Shrub Aspen <br /> <br />Agropyron smithii 5.91 <br />Agropyron spicatum 5.58 <br />Agropyron trachycaulum 3.07 <br />Bromus ported 3.50 3.33 8.38 <br />Elymus glaucus 7.85 <br />Poa pratensis 9.08 11.87 10.30 <br />Subtotal 4 3 3 <br /> <br />Achillea lanulosa 3.49 <br />Lupinus caudatus 5.14 <br />osmorhiza occidentalis 6.46 <br />Subtotal 1 0 2 <br /> <br />Amelachier utahensis 13.73 <br />Artemisia tridentata 27.13 <br />Prunus virginiana 4.89 <br />Quercus gambellii 7.47 <br />Symphoricarpos oreophilus 12.80 37.07 32.81 <br />Subtotal 2 3 2 <br />TOTAL 7 6 7 <br />4.15-26 Revision Date: 3/14/08 <br />Revision No.: TR-72