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Table 1. Cover sampling statistical summary, New Elk mine tailings disposal area, September 1984. <br /> Conifer-Shrub Oak-Shrub Reference Area <br /> Mean (x) Range Mean (x) Range Mean �x) Mange <br /> Canopy 42.75 (27-71) 43.16 (23-64) 0.80 ( 0- 4) <br /> Plant Covet <br /> Graminolds 20.45 ( 9'-27) 9.00 ( 0-22) 43.50 (31-52) <br /> Vorbs 3.70 ( 0- 9) 2.12 ( 0- 5) 8.30 { 3-15) <br /> Shrub* 3.35 ( 0-10) 3.12 { 0- 6) 1.40 ( 4- 5) <br /> Cacti 0.05 ( 0- 1) 0.54 { 0- 3) 0.40 __1 21 3j <br /> Total Plant Cover 27.55 (19-34) 14.79 ( 6-24) 53.60 (45--60) <br /> Remainder <br /> Litter 51.90 (35-68) 39.50 (16-53) 9.00 { 0-2:2) <br /> Total Cover 79.45 (66-94) 54.29 (30-68) 62.60 '(51--83) <br /> Rack 16.10 ( 2-34) 32.54 (14-62) 0.60 ( 0- 3) <br /> Bare Ground 4.45 ( 0-11). 13.17 ( 1-30) 36.80 (17-49) <br /> Total 100.00 100.00 100.00 <br /> Plant Cover Statistics* <br /> Sample Size (n) 20 24 10 <br /> Standard Deviation (a) 4.03 3.98 5.15 <br /> Minimum Sample Size (nmin) 5.78 19.51 2.49 <br /> �p=0.10; d=0.10) <br /> Standard Error (a-) 0.90 0.20 1.52 <br /> Confidence Interval (p---0,10) 27.55 + 1.48 14.79 + 0.34 53..60 -+i- 2.68 <br /> *Computations based on Total Plant Cover <br />