REP51522

• Permit No: C1982057
• IBM Index Class Name: Report
• Doc Date: 3/28/2002
• Doc Name: 2002 Revegetation Monitoring Report
• From: Seneca Coal Company
• To: DMG
• Permit Index Doc Type: Reveg Monitoring Report
• Media Type: D
• Archive: No

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Table 4. Cover Data -Aspen Extended Reference Area, Seneca IIW Mine, SCC, Routt Co., CO - 2002
RELATIVE
PLANT SPECIES AVERAGE _ VEGETATION AVERAGE
COVER FREQUENCY COVER COVER-ALL
Page 2 of 4
RELATIVE
VEGETATION
COVER-ALL
(%)
INTRODUCED PERENNIAL FORBS
Breea arvensis 0.50 80.00 0.60 0.80 0.71
Taraxacum officinale 0.10 30.00 0.12 0.10 0.09
TOTAL INTRO. PERENNIAL FORBS 0.6 90.0 0.7 0.9 0.8
NATIVE PERENNIAL GRASSES (cool)
Bromopsis canadensis 2.10 80.00 2.53 3.50 3.11
Carex geyeri 0.20 30.00 0.24 0.90 0.80
Ceratochloa carinata 0.00 20.00 0.00 0.20 0.18
Elymus glaucus 5.20 100.00 6.26 10.80 9.58
Poa agassizensis 2.40 80.00 2.89 3.00 2.66
Poa palustris 0.00 10.00 0.00 0.00 0.00
TOTAL NATIVE PERENNIAL GRASSES (c) 9.9 100.0 11.9 18.4 16.3
INTRODUCED PERENNIAL GRASSES (wol) '
Bromopsis inennis 0.20 10.00 0.24 0.50 0.44
Dactylis glomerate 0.20 20.00 0.24 0.30 0.27
Phleum pretense 0.00 20.00 0.00 0.00 0.00
Poa pratensis 0.10 10.00 0.12 0.10 0.09
Thinopyrum intermedium 0.00 10.00 0.00 0.00 0.00
TOTAL INTRO. PERENNIAL GRASSES (c) 0.5 50.0 0.6 0.9 0.8
NATIVE SHRUBS
Acer glabrum 0.90 20.00 1.08 0.90 0.80
Amelanchier alnifolia 12.80 80.00 15.40 13.80 12.24
Mahania repens 0.10 10.00 0.12 0.10 0.09
Padus virginiana ssp. melanocarpa 6.50 80.00 7.82 8.30 7.36
Quercus gambelii ~ 1.10 60.00 1.32 1.10 0.98
Ribes lacustre ~ 0.10 50.00 0.12 0.20 0.18
Rosa sayi 0.00 10.00 0.00 0.00 0.00
Rosa woodsii 0.00 40.00 0.00 0.00 0.00
Salix scouleriana 0.20 10.00 0.24 0.20 0.18
Symphoricarpos rotundifolius 8.00 100.00 9.63 12.60 11.18
TOTAL NATIVE SHRUBS 29.7 100.0 35.7 37.2 33.0
NATIVE TREES
Populus tremuloides 28.60 100.00 34.42 28.70 25.47
TOTAL NATIVE TREES - 28.6 100.0 34.4 28.7 25.5
Standing dead 1.70 90.00 1.70
Litter 11.30 100.00 11.30
Bare soil 3.90 100.00 3.90
TOTALS 100.0 129.6
TOTAL VEGETATION COVER 83.1 (s=3.6) 100.0 112.7 (s=8.6) 100.0
GROUND COVER (Litter+Rock+Veg+St.Dead) 96.1 125.7
Total Alowable Vegetation Cover 24.8
SPECIES DENSITY (# of species/100 sq.m.)
(AVERAGE=30.9 Std.Dev.= 3.6)