2019-11-22_REVISION - C1981019 (2)

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RULE 4 PERFORMANCE STANDARDS ~ ' Species diversity for the postmine vegetative community will be determined in the same manner as the premine inventory. Cover data will be collected using a point frame placed in an unbiased manner. Overall, postmine data collection methods will be similar to premine data collection methods. Relative cover values(composition)will be determined for each species in the sampled portion of the reclaimed area. A similar analysis of Hamer's January, 1985 Danforth Project data for the baseline evaluation of the South Taylor Area (PR-02) yields a similar level of herbaceous diversity: an average of 3 perennial grasses and 1 perennial forb for the three sampled communities with relative cover values between 3% and 50%. These values are readily observable on the summary table below that lists those taxa that exceed 3%relative cover from each of the study's three vegetation communities. The Number of Native Perennials with Between 3%and SO% Relative Cover from the Dominant Communities of the So.Taylor Area - Harner, 198S Percent Relative Cover/Total No. iSpecies Sagebrush Mtn.Shrub Aspen Agrowon smithii 5.91 Agropyron spicatum 5.58 Agropyron&achycau/um 3.07 Bromus porteri 3.30 3.33 8.38 Elymus glaucus 7.85 Poa pratensis 9.08 11.87 10.30 Subtotall 4 1 3 1 3 Achi//ea/anulosa 3.49 Lupins caudatus 5.14 Osmorhiza occidentalis 6.46 Subtotal 1 0 2 Amelachier utahens& 13.73 Artemisia tridentata 27.13 Prunus virginiana 4.89 Quercus gambellii 7.47 Symphoricarpos oreophilus 12.80 37.07 32.81 Subtotal 2 3 2 TOTAL 7 6 7 Given the aforementioned,the revegetation objective for diversity will be to establish a community on the reclaimed areas that contain the following; For areas targeting the livestock grazing subcomponent of the Rangeland Land Use (Pre-2008 reclamation): a) At least two cool season perennial grasses with between 3% and 50% relative cover Rule 4 Performance Standards 4-74 Revision Date: 11/18/19 Revision No.: MR-211