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~ ~ ~ ~ ~' ~ ~ ~ ~ ~ ~ ~ ! ~ ~ i ~ ~ ~ <br />Table 4. COVER, FREQUENCY AND IMPORTANCE VALUE SUMMARY FOR THE AREA RECLAIMED IN 1988 AT THE <br />WALDEN COAL PROJECT SITE. BASED ON 1997 (AUGUST l9) DATA FROM'IWEN7'Y 25-METER POINT <br />TRANSECTS. +/- VALUES EQUAL THE STANDARD DEVIATION. <br /> Mean Relative Range of Percent Relative Importance <br />Species Cover Cover Cover Values Frequency Frequency Value Rank <br /> <br />COOL SEASON PERENNIAL GRASSES <br />Agropyron dasystachyum 6.15 20.09 0- 13 90.00 27.69 47.79 2 <br />Agropyron smtthii 0.05 0. [6 0- 1 5.00 1.54 I.70 7 <br />Poa compressa <0.01 <0.01 0- <1 0.00 0.00 0.00 8 <br />Stipa virtdu/a 0.05 0.16 0- l 5.00 1.54 1.70 7 <br />Sub-total 6.25 20.42 <br />INTRODUCED PERENNIAL GRASSES <br />Agropyron cristahrm <br />F <0.01 <O.OI 0- <1 0.00 0.00 0.00 8 <br />, <br />? Alopecurus pratensis 0.20 0.65 0- 2 10.00 3.08 3.73 5 <br />Bromus tnermis <0.01 <0.01 0- <1 0.00 0.00 0.00 8 <br />Elymus junceus 22.00 71.88 13- 32 100.00 30.77 102.65 1 <br />Festuca ovine 0.50 1.63 0- 3 30.00 9.23 10.86 4 <br />Sub-total 22.70 74.17 <br />FORBS <br />Chenopodium sp. <0.01 <0.01 0- <1 0.00 0.00 0.00 8 <br />Sub-total <0.01 <0.01 <br />PERENNIAL FORBS <br />Astragalus titer <0.01 <0.01 0- <1 0.00 0.00 0.00 8 <br />Perutemon strictus <0.01 <0.01 0- <1 0.00 0.00 0.00 8 <br />Taraxacum o,/ficinale <0.01 <0.0] 0- <l 0.00 0.00 0.00 8 <br />Sub-total <0.01 <0.01 <br />ANNUAL AND BIENNIAL FORBS <br />Machaeranthera canescens <0.01 <0.01 0- <l 0.00 0.00 0.00 8 <br />Sub-total <0.01 <O.OI <br />