2008-03-13_REPORT - C1981019 ‎(2)‎

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 3/13/2008
• Doc Name: 2007 AHR 2007 Revegetation Monitoring Report
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2007
• Permit Index Doc Type: Hydrology Report
• Email Name: SB1
• Media Type: D
• Archive: No

Table of Contents
1.0 Introduction ...............................................................................
2.0 Results ......................................................................................
............................................ 1
........................................ 6
2.1 Overall Summary ....................................................................! ............................................ 6
2.2 East Pit .................................................................................. ~ .......................................... 14
2.2.1 EP036 - 7"' Year -Cover, Diversity, Production, & Woo dy Plant Density .................. 14
2.2.2 EP039 - 7"' Year -Cover, Diversity, Production, & Woo dy Plant Density .................. 16
2.2.3 EP040 - 4~' Year -Cover, Diversity, & Woody Plant Density ................................... 18
2.2.4 EP041 - 4"' Year -Cover, Diversity, & Woody Plant Density ................................... 20
2.2.5 EP044 - 4"' Year -Cover, Diversity, & Woody Plant Density ................................... 22
2.2.6 EP046 = 2"d Year -Cover, Diversity, & Woody Plant Density ................................... 24
2.3 West Pit .................................................................................:.......................................... 26
2.3.1 WP008 - 7"' Year -Cover, Diversity, Production, & Woody Plant Density ................. 26
2.4 Summary by Area .............................................................................................................. 28
2.4.1 East Pit .............................................................................................................. 28
2.4.2 West Pit ............................................................................................................. 31
2.5 Reference Areas .....................................................................:.......................................... 34
2.5.1 Mountain Shrub Reference Area ................................:.......................................... 34
2.5.2 Sagebrush Reference Area ........................................:.......................................... 34
2.5.3 Improved Pasture Reference Area .............................:.......................................... 35
2.5.4 Target Grassland Reference Area ......................................................................... 35
2.5.5 Target Sage Grouse Reference Area .................................................................... 36
2.6 Planted Seed Establishment ............................................................................................... 48
2.7 CSU Shrub Plots .................................................................... ' ........................................
.... 51
2.8
..... ..... ......................
Permanent Shrub Plots ..................................... .... ............................. 74
2.9 Section 16 Informational Data Collection ............................................................................. 78
3.0 Conclusions & Recommendations ............................................:.......................................... 82
4.0 Literature Cited ........................................................................ ~ ........................................ 84
In-Text Tables, Charts, Figures, and Maps
Map 1-Vegetation Sampling Unit Locations - 2007 .........................L........................................... 3
Map 2 -Proposed Reference Area Locations - 2007 ............................................ 4
.......................
- p' wY - ............................................5
Table P Preci station at the Colo o Mine 2001 2007 ..................,
Chart P -Precipitation by Growing Season at the Colowyo Mine, 2001 - 2007 ................................. 5
Chart 1-All Sampled Areas -Average Ground Cover by Lifeform - 2007 ...................................... 8
Chart 2 -All Sampled Areas -Relative Ground Cover (Composition) by Lifeform - 2007 ................. 8
Chart 3 -Perennial Cover Success Criteria Comparison by Area - 2007 ......................................... 9
Table 1 -Vegetation Production -Summary of Areas Sampled - 2007 .......................................... 10
Chart 4 -Summary of Current Annual Production by Unit and Lifeform - 2007 ............................. 10
Table 2 -Woody Plant Density -Summary of All Areas Sampled - 2007 ....................................... 11
Chart 5 -Woody Plant Density by Species and Area - 2007 ........................................................ 11
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