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ERO Resources <br />TABLE 7 (CONTINUED) <br />• WESTERN FUELS -UTAH, INC. <br />DESERADO MINE <br />SUMMARY OF SHRUB HEIGHT CLASS AND DENSITY DATA <br />COLORADO WILDRYE COMMUNITIES <br />Shrubs <br />Height <br />Class Frequency <br />z Relative <br />Density <br />Shrubs/ <br />Hectare <br />AFFECTED "D" PORTAL <br />Artemisia tridentata <br />A 35 <br />46 <br />3,425 <br />B 248 <br />Atriplex canescens <br />A 215 <br />51 <br />3,775 <br />B Be <br />A 4 <br />1 <br />50 <br />A 1 <br /><1 <br />13 <br />barcooatus vermicuiatue <br />A 2 <br />2 <br />113 <br />B 3 <br />C 4 <br />Tetradvmia spinosa <br />A 3 <br />1 <br />100 <br />B 5 <br />Descriptive <br />Statistics In=20, M=29.9, s=8.43, <br />nmin=131 <br />AFFECTED "B" PORTAL <br />Artemisia tridentata <br />A 1 <br />9 <br />413 <br />B 6 <br />Atriplex confertifolia <br />A 14 <br />76 <br />3,325 <br />B 20 <br />Sarcobatus vermiculatus <br />A 1 <br />6 <br />250 <br />• <br />C 4 <br />Tetradvmia spinosa <br />B 3 <br />2 <br />100 <br />Descriptive <br />Statistics (n=20, M=17.6, s=7.28, <br />nmin=28) <br />• <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 = Sgile Mean <br />c = Sle Standard Deviation <br />n = Sle Size <br />nmin nimum sample size required with a 20% reduction in the sample <br />mean with 80% confidence <br />II.F-74 <br />