2010-12-27_REVISION - C1981019 (4)

Home Browse Search

Table 1 Colo o - Vegetation Cover - 2008 (Page 2 of 2) 1111E 15 1 1141 11111 111 iilil Ell f Area -> Phase II Mountain Sagebrush Weighted Shrub R.A. R.A. Reference Wei ht -> 100% 55% 45% Values Forbs Continued N P Lomadum dissectum Fernleaf Biscuitroot - - 0.10 0.05 N P Lupins caudatus Tailcup Lupine - 4.55 - 2.50 I P Medicago saliva Alfalfa 3.42 - - I P Onobrychis viciaefolia Sainfoin 0.04 - - - N P Penstemon strictus Rocky Mtn. Penstemon 0.02 - - - N P Phlox hoodii Hood Phlox - - 0.20 0.09 I A Ranunculus testiculatus Nut Buttercup 0.08 - - - I P Sanguisorba minor Small Burnet 0.06 - - N P Senecio multilobatus Lobeleaf Groundsel - 0.10 - 0.06 I A Sisymbnum allssimum Tumble Mustard 0.32 - - - N P Stellaria jamesiana Tuber Starwort 0.14 - - N P Sphaeralcea coccinea Scarlet Globemallow - - 0.40 0.18 N P Stenotus armenoides Thrifty Goldenweed - 0.15 1.55 0.78 I P Taraxacum offidnale Dandelion 0.04 - - - I A Thlaspi arvense Field Pennycress 0.18 0.15 - 0.08 I B Tragopogon dubius False Salsify 0.18 0.10 0.301 0.19 Sub - shrubs N P Ceratoides lanata Winterfat - - 0.50 0.23 N P Eriogonum microthecum Slender Buckwheat - 0.15 0.07 N P Gutierrezia sarothrae Snakeweed - - 2.90 1.31 N P Mahonia repens Creeping barberry - 0.25 - 0.14 Shrubs, Cacti & Trees N P Amelachieralnifolia Serviceberry 0.55 0.50 0.53 N P Artemisia tndentata wyo. Wyo. Big Sagebrush 0.14 12.30 9.55 11.06 N P Atriplex canescens Four -wing Saltbush 0.10 - - - N P Chrysothamnus nauseosus Rubber Rabbitbrush 0.22 0.35 0.05 0.22 N P Chrysothamnus visciditlorus Low Rabbitbrush - 1.45 0.25 0.91 N P Prunus virginiana Chokecherry - 0.10 - 0.06 N P Quercus gambelii Gambel Oak - 2.20 - 1.21 N P Rosa woodsii Woods Rose 0.02 - - - N P Symphoricarpos oreophilus Mountain Snowberry - 6.55 1.55 4.30 g g Total Plant Cover 71.481 63.00 57.85 60.68 Rock 0.54 0.50 2.40 1.36 Litter 22.26 1 31.30 25.60 28.74 Bare wound 5.72 5.20 14.15 9.23 Total Perennial Cover 63.00 55.05 34.70 45.89 Perennial Grasses 49.48 23.60 16.35 20.34 Annual Grasses 7.08 6.20 22.05 13.33 Perennial Forbs 13.04 7.70 2.90 5.54 Annual & Biennial Forbs 1.40 1.65 1.10 1.40 Noxious / Aggressive Weeds - 0.10 - 0.06 Sub - Shrubs - 0.25 3.55 1.74 Shrubs 0.48 23.50 11.90 18.28 $a'm� s r � Mean = 71.48 63.00 57.85 Variance = 95.602 39.789 87.187 n = 50 20 20 nmin = 3.16 1.77 4.59 CEDAR CREEK ASSOCIATES, Inc. Page 13 Colowyo Coal Company 2008 Phase II Evaluation (Updated Dec -10)