REP45814

• Permit No: C1981021
• IBM Index Class Name: Report
• Doc Name: EVALUATION OF REVEGETATION SUCCESS AT THE WALDEN COAL CO MINE SITE
• Permit Index Doc Type: ANNUAL RECLAMATION REPORT
• Media Type: D
• Archive: No

Table 5. COVER, FREQUENCY AND IMPORTANCE VALUE SUMMARY FOR THE RECLAIMED AREA AT THE WALDEN COAL
PROJECT SITE. BASED ON 1992 (JULY 30) DATA FROM TWENTY 25-METER POINT TRANSECTS.
+~- VALUES EQUAL THE STANDARD DEVIATION.

Mean Relative Range of Percent Relative Importance
Species Cover Cover Cover V alues Frequency Frequency Value Rank

COOL SEASON PERENNIAL GRASSES
Agropyron dasystachyum 15.40 52.19 2 - 36 100.00 28.57 80.76 1
Agropyron smithii 0.40 1.36 0 - 2 20.00 5.71 7.07 6
Agropyron spicatum <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Agropyron trachycaulum 0.10 0.34 0 - 2 5.00 1.43 1.77 7
Hordeum jubatum <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Oryzopsis hymenoidee <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Stipa comata 0.10 0.34 0 - 2 5.00 1.43 1.77 7
Stipa viridula 1.30 4.41 0 - 6 30.00 8.57 12.98 4
Sub-total 17.30 58.63
i
.~ INTRODUCED PERENNIAL GRASSES
~ Agropyron cristatum <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Agropyron intermedium 0.10 0.34 0 - 2 5.00 1.43 1.77 7
Alopecurus pratensis 0.90 3.05 0 - 6 30.00 8.57 11.62 5
Bromus inermie <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Elymus junceus 7.20 24.40 2 - 20 100.00 28.57 52.97 2
Festuca ovina <0.01 <0.01 0 - <1 0.00 0.00 0.00 6
Sub-total 8.20 27.79
PERENNIAL FORBS
Achillea lanulosa <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Penstemon etrictue <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Sub-total <0.01 <0.01
ANNUAL AND BIENNIAL FORBS
Descurainia richardsonii <0.01 <0.01~ 0 - <1 0.00 0.00 0.00 8
Machaeranthera caneecene <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Sisymbrium altissimum <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Solanum triflorum <0.01 <0.01 0 - <1 0.00 0.00 0.00 8
Sub-total <0.01 <0.01