2010-03-12_REPORT - C1981019 ‎(8)‎

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 3/12/2010
• Doc Name: 2009 AHR & ARR Section 9 ‎(2009 Revegetation Monitoring Report)‎
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2009
• Permit Index Doc Type: Hydrology Report
• Email Name: JRS
• Media Type: D
• Archive: No

Table 7 Colo o - Vegetation Cover - 2007
CSU Shrub Plots - Average Cover Summary - 6 to 10
Percent Ground Cover Based on Point-Intercept Sampling

Test Plot --> 6 7 8 9 10 6 7 8 9 30
To
soil --> 18 6" 6. 0 E o Avera
e j L' " 6" 0 o Average
p
Seed mix &2 1 1&2 1&2 11 3 &2 1 1&2 1&2 3

Grasses and Grass-likes
N P Agropyron dasystachyum Thickspike Wheatgrass 0.80 3.80 - - - 0.92 8.40 - 3.40 2.20 1.60 3.12
0
08
I P Agropyron cristatum Crested Whretgrass - - - - - - - 0.40 - - .
N P Agron smithii Western Wheatgrass 0.60 0.80 - - 0.28 -
4
00
80
0
N P Agropyronsp/catum Bluebunch Wheatgrass - - -
00
6 -
16
00 0.80
15
00 0.16
44
7 -
5.40 -
- .
- 7.60 8.20 .
4.24
N P Agropyron spicatum inerme Beardless Bluebunch W. 0.20 - . . .
- .
32
0 4
60 - 1
00 1.20 2.40 1.84
N P A ropyron track cau/um Slender WheAwass 1.60 -
2
60 -
6
00 -
80
0 - .
1.88 .
2.00 2.20 .
4.80 3.20 1.20 2.68
1 P Bromus lnermis Smooth Brome
I A Bromusjaponicus Japanese Brome -
1.80 .
2.40 .
1.20 .
- - 1.08 4.00 1.40 3.40 0.80 1.00 2.12
N P Bromus mar inafus Mountain Brome 0.20 - 0.40 0.12 - 0.40 0.20
- -
20
0 0.12
16
0
I A Bromus tectorum Cheatgrass 0.60 - - 0.20 - 0.16
- 0.60
- -
- -
- - .
0.60 .
0.12
I P Qactylisglomerata Orchardgrass
N P Festuca ov/na/sax/montana Hard Fescue -
7.80 -
0.40 -
4.40 -
1.60 -
0.60 2.96 4.60 2.20 3.60 2.00 3.80 3.24
I P Phleumpratense Timothy
I P Poa pratensis Kentucky Bluegrass -
18.60 -
10.60 -
4.00 -
-
- -
6.64 -
12.60 -
29.20 -
10.80 -
0.80 0.20
1.00 0.04
10.88
N P Poa secunda Sandberg Bluegrass 0.60 0.20 0.20 - 0.20 - - - -
20
0 -
- -
0
08
N P Sitan/on hystr/x Bottlebrush Squirreltail 0.20 - - - - 0.04 0.20 - - . .
0
08
N P Sti nelson// Nelson Needl rass 0.60 - - - 0.12 0.40 - .

Forbs
N P Ach/llea lanulosa Western Yarrow 0.60 0.60 2.00 1.60 1AIS 3.40 1.60 4.00 2.60 2.84
N P All/um texti/e Wild Onion 0.40 0.60 - - 0.20
08
0 - -
1
20 6 -
1
20 -
0
60 0.12
92
0
I P Astra lus cicer Cicer Milkvetch 0.20 0.20 . . . . .
N P Astraga/us tenellus Looseflower Milkvetch O.60 - 0.60 0.24 - - -
20
0 -
0
08
N P Balsamorh/za sagittata Arrowleaf Balsamroot r 0.20 r .
- .
0
12
I B Ors/um vua e Bull Thistle 2.80 - 0.56 0.60 .
N A Collomia //near/s Slenderleaf Collomia 0.20 0.80 0.28 - - -
84
0
N A Collins/a parv/t/ora Maiden Blue Eye Mary 0.20 0.20 0.12 1.80 2.40 .
I B Laduca Prickly Lettu
wis Flax
L 0.60
1
20 -
0
60
2 - -
1
60 0.12
1.32 -
0.40 -
0.20
1.40
3.00
0.80 -
1.16
e
N P Linum lewisu
N P Penstemon strldus Rocky Mtn. Penstemon .
- .
0.20 0
O .
1.60 0.68 - 0.20 0.40 1.60 0.20 0.48
I A Ranunculus testicu/atus Nut Buttercup - 0
O L 0.04 - - - - -
I A Sisymbrium att/ss/mum Tumble Mustard 0.20 - 0.04 0.20 0.04
I 8 Tiago n dubius False Salsi 0.60 0.20 - 0.16 - -
Sub-shrubs
None

Shrubs, Cacti & Trees
N P AtVmesia cana Silver Sage 13.80 17.20 6.40 0.80 0.80 7.80 11.40 17.20 5.60 5.60 3.60 8.68
N P Artemisia tridentate vas. Mtn. Big Sagebrush 23.00 27.00 20.60 10.60 11.60
1
18.56

-

4.80

12.80

10.80

2.20

6.12
N P Ch thamnus nauseosus Rubber Rabbitbrush - 0.60 1.40 1.60 1.60 1.04
L - - 1.40 2.40 0.76
N P Pursh/a tr/dentata Antelope Bitterbrush - - 4.20 14.80 - 3.80 - - - - - -
N P S horlcar s oreophilus Mountain Snowbe 0.20 0.20 - 0.08 - - - -
Total Plant Cover 77.60 68.80 59.40 51.40 35.80 58.60 60.20 63.60 56.60 45.60 32.80 51.76
Rock 0.20 1.00 4.60 4.80 9.60 4.04 0.20
1.00
3.00
11.00
11.20
5.28
Litter 21.20 26.00 25.40 16.20 18.60 21.48 4.20 4.00
I 4.60 2.40 3.60 3.76
Bare round 1.00 4.20 10.60 27.60 36.00 15.88 35.40 31.40 35.80 41.00 52.40 39.20
Total Perennial Cover 70.60 65.20 57.40 51.20 35.80 56.04 53.00 59.80 53.20 44.80 31160 48.48
Summary by Lifelfbirmi:
Perennial Grasses
31.20
18.20
21.00
18.60
16.40
21.08
37.80
34.40
28.20
17.20
19.00
27.32
Annual Grasses 2.40 2.40 1.20 0.20 - 1.24 4.60 1.40 3.40 0.80 1.20 2.28
Perennial Forbs 2.40 2.00 3.80 4.80 5.40 - 3.68 3.80 3.40 6.60 9.80 4.40 5.60
Annual & Biennial Forbs 4.60 1.20 0.80 - - 1.32 2.60 2.40 - - - 1.00
Noxious I Aggressive Weeds - - - - - - - - - - - "
Sub-shrubs - - - - - - - - - - -
Shrubs 37.00 45.00 32.60 27.80 14.00 31.28 11.40 22.00 18.40 17.80 8.20 15.56
sample Adequacy Calculations:
Mean = 77.60 68.80 59.40 51.40 35.80 60.20 63.60 56.60 45.60 32.80
Variance = 43.300 11.700 87.800 7.800 6.700 66.700 46.800 51.800 102.300 13.700
n= 5 5 5 5 5 5 5 5 5 5
n.i„ = 1.69 0.58 5.85 0.69 1.23 4.33 2.72 3.80 11.57 2.99 -

CEDAR CREEK ASSOCIATES, Inc. Page 39 Colowyo Mine
2009 Revegetation Monitoring Report