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ERO Resources <br />TABLE 7 (CONCLUDED) <br />• WESTERN FUELS -UTAH, INC. <br />OESERADO MINE <br />SUMMARY OF SHRUB HEIGHT CLASS AND DENSITY DATA <br />REFERENCE COMMUNITIES <br />i t X e ative Shrubs <br />Shrubs Class Frequency Density Hectare <br />SAGEBRUSH-GREASEWOOD <br />Artemisia arbuscula <br />A 1 <br />6 <br />875 <br />B 5 <br />Artemisia tridentata <br />A 3 <br />49 <br />6,860 <br />B 36 <br />C 9 <br />Atrialaxria� <br />18 <br />1,055 <br />A 4 <br />Sarcobatus vermiculatus <br />A 1 <br />24 <br />3,390 <br />B 19 <br />C 25 <br />Tetrad=ia canescens <br />A 3 <br />1 <br />195 <br />B 1 <br />Descriptive Statistics <br />in=18, M=55.8, s=21.13, <br />nmin=231 <br />COLORADO WILDRYF <br />A>:L1127alm.825t0djantatajH <br />A 18 72 <br />23 <br />4 , 950 <br />B 14 <br />• vermiculatus <br />sfLnoT sa <br />C 1 <br />B 2 <br />C1 <br />4 <br />13 <br />263 <br />Descriptive Statistics <br />to=20, M=27.4, s=6.27, <br />nmin=8) <br />A = 0.25 - 0.75 meters <br />B = 0.75 - 1.50 meters <br />C = 1.50 - 2.25 meters <br />D = > 2.25 meters <br />M = Sample Mean <br />s = Sample Standard Deviation <br />n = Sample Size <br />nmin = Minimum sample size required with a 20% reduction in the sample <br />mean with 80% confidence <br />II.F-78 <br />