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<br />Daub & Associates, Inc. Page 3-63 2015 NS Mine Plan Modification <br />1/5/2016 Section 3 General Site Conditions <br />Table 3-18 - Native Rangeland Ground Cover, Biomass Production & Species Composition, August 2014 1 <br /> Scientific Name Common Name Percent Cover 2 Production <br />lbs/ac 3 <br />Species <br />Composition 4 <br />Grasses <br />ACHY Achnatherum hymenoides Indian Ricegrass 1.70% 25.3 3.32% <br />BRTE Bromus tectorum Cheatgrass (annual grass) 0.65% 18.82 2.47% <br />ELEL Elymus elymoides ssp. <br />elymoides Squirreltail 0.55% 8.46 1.11% <br />HECO Stipa comata Needle & Thread grass 12.80% 198.22 26.00% <br />KOMA Koeleria macrantha Junegrass 2.70% 25.86 3.39% <br />PASM Pascopyrum smithii Western Wheatgrass 8.40% 177.45 23.27% <br />POSE Poa secunda Sandberg Bluegrass 1.05% 12.92 1.69% <br />Total Grasses 27.85% 467.02 61.25% <br />Forbs <br />ASCO Astragalus convallarius Lesser-rushy Milkvetch 0.30% 3.46 0.45% <br />CAFI Carex filifolia Threadleaf Sedge 0.35% 4.05 0.53% <br />CALI Castilleja linariifolia Wyoming Indian <br />Paintbrush 0.15% 0.83 0.11% <br />CANU Calochortus nuttallii Sego lilly 0.10% 4.86 0.64% <br />CRFL Cryptantha flava Yellow Cryptanth 0.25% 2.34 0.31% <br />CROC Crepis occidentalis Hawksbeard 0.15% 2.34 0.31% <br />EREA Erigeron eatonii Fleabane 0.30% 2.42 0.32% <br />GICO Gilia congesta Ballhead Gilia 0.15% 1.92 0.25% <br />HEBO Hedysarum boreale Utah Sweetvetch 1.60% 26.66 3.50% <br />LEDE Lepidium densiflorum Prairie pepperweed <br />(weedy forb) 0.40% 3.68 0.48% <br />LEER Leucelene ericoides Heath Aster 0.30% 6.31 0.83% <br />LILE Linum lewisii Lewis Flax 0.05% 0.94 0.12% <br />MAGR Machaeranthera <br />grindelioides Discoid Tansyaster 0.10% 2.01 0.26% <br />OPPO Opuntia polyacantha Prickly-Pear Cactus 0.45% 5.55 0.73% <br />PHHO Phlox hoodii Hood's Phlox 0.78% 4.65 0.61% <br />PHLO Phlox longifolia Longleaf Phlox 0.18% 1.64 0.22% <br />SPCO Sphaeralcea coccinea Scarlet Globemallow 1.15% 16.04 2.10% <br />TRGY Trifolium gymnocarpon Clover 0.35% 3.6 0.47% <br />Total Forbs 7.10% 93.29 12.24% <br />Shrubs <br />ARTR Artemesia tridentata var. <br />wyomingensis Wyoming Big Sagebrush 16.85% 155.88 20.44% <br />CHDE Chrysothamnus depressus Longflower Rabbitbrush 1.00% 6.9 0.90% <br />GUSA Gutierrezia sarothrae Broom Snakeweed 0.15% 2.08 0.27% <br />JUUT Juniperus utahensis Utah Juniper 0.20% 3.78 0.50% <br />KRLA Krascheninnikovia lanata Winterfat 1.50% 26.62 3.49% <br />PIED Pinus edulis Pinyon Pine 1.05% 4.39 0.58% <br />SAVE Sarcobatus vermiculatus Greasewood 0.35% 2.52 0.33% <br />Total Shrubs 21.10% 202.16 26.51% <br /> <br />Moss/Lichen 7.15% <br /> Litter 11.95% <br />Bare Ground 24.70% <br />Rock 0.15% <br />TOTAL 100.00% 762.47 100.00% <br />1 Data was collected August 2014 utilizing twenty 9.6 square foot quadrants. <br />2 Ground cover values were made from visual observations of cover type within each quadrant and reported as a percentage <br />of total ground cover. <br />3 Production values were made using a double weight sampling procedure of estimates adjusted by actual values from <br />representative samples to determine air-dry above ground biomass from the 20 quadrants, converted to pounds per acre <br />using NRCS and BLM standard conversion rates. <br />4 Species composition values are based upon the percentage of total above ground biomass production for all species. <br />Table 3-18. Native rangeland ground cover, biomass production, and species composition in <br />the Project Area, August 2014.