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 3. COVER, FREQUENCY AND IMPORTANCE VALUE SUMMARY FOR THE
1988. WALDEN COAL PROJECT SITE. BASED ON 1992 (JULY
TRANSECTS. +~- VALUES EQUAL THE STANDARD DEVIATION. PORTION OF THE RECLAIMED AREA SEEDED IN
30) DATA FROM FOURTEEN 25-METER POINT
Mean Relative Range of Percent Relative Importance
Species Cover Cover Cover Va lues Frequency Frequency Value Rank
(~) ($) ($1 ($I ($1
COOL SEASON PERENNIAL GRASSES
Agropyron dasystachyum 18.43 59.70 10 - 36 100.00 31.82 91.52 1
Agropyron emithii 0.57 1.85 0 - 2 28.57 9.09 10.94 5
Agropyron spicatum <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Agropyron trachycaulum 0.14 0.46 0 - 2 7.14 2.27 2.74 6
Hordeum jubatum <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Oryzopsis hymenoides <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Stipa viridula <O.OI <0.01 0 - <1 0.00 0.00 0.00 7
Sub-total 19.15 62.02
i
o INTRODUCED PERENNIAL GRASSES
' Agropyron cristatum <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Alopecurus pratensis 1.29 4.17 0 - 6 42.86 13.64 17.80 3
Bromus inermis <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Elymus junceus 9.57 31.01 2 - 20 100.00 31.82 62.83 2
Festuca ovina <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Sub-total 10.86 35.18
PERENNIAL FORBS
Penstemon strictus <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Sub-total <0.01 <0.01
ANNUAL AND BIENNIAL FORBS
Descurainia richardeonii <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Sisymbrium altiesimum <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Solanum triflorum <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Sub-total <0.01 <0.01
SEMI-SHRUBS OR HALF-SHRUBS
Artemisia frigida <0.01 <0.01 0 - <1 0.00 0.00 0.00 7
Sub-total <0.01 <0.01