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Table of Contents <br />1.0 Introduction ............................................................................................ ............................... 1 <br />2.0 Methodology for Vegetation Sampling / Comparison Methods <br />............ ............................... 7 <br />2.1 <br />Sample Site Selection / Location ............................................................ <br />............................... <br />7 <br />2.2 <br />Determination of Ground Cover ............................................................. <br />............................... 8 <br />2.3 <br />Determination of Woody Plant Density ................................................... <br />............................... 8 <br />2.4 <br />Determination of Current Annual Production ......................................... <br />............................... <br />10 <br />2.5 <br />Sample Adequacy Determination ......................................................... <br />............................... <br />11 <br />Table 5 — Woody Plant Density — Phase III Shrub Plots - 2008 ...................... ............................... <br />............................... <br />12 <br />3.0 Results <br />................................................................................................... <br />III <br />............................... <br />12 <br />3 .1 <br />Phase ........................................................................................... <br />Areas <br />............................... <br />12 <br />3 .2 <br />Reference ................................................................................. <br />3.2.1 Mountain Shrub Reference Area .................................................. <br />............................... <br />12 <br />3.2.2 Sagebrush Reference Area .......................................................... <br />............................... <br />13 <br />Evaluation <br />............................... <br />25 <br />4.0 Success <br />4.1 <br />................................................................................ <br />Ground Cover and Production .............................................................. <br />............................... <br />25 <br />............................... <br />26 <br />4 .2 <br />Diversity ............................................................................................ <br />Plant Density <br />............................... <br />26 <br />4 .3 <br />Woody ........................................................................... <br />In -Text Tables, Charts, Figures, and Maps <br />Table P — Precipitation at the Colowyo Mine, 2001 - 2008 ............................... ............................... 3 <br />Chart P — Precipitation by Growing Season at the Colowyo Mine, 2001 - 2008 .. ............................... 3 <br />Map 1 — Vegetation Sampling Unit Locations - 2008 ....................................... ............................... 4 <br />Map 2 — Vegetation Sampling Point Locations — Mountain Shrub Reference Area — 2008 .................. 5 <br />Map 3 — Vegetation Sampling Point Locations — Sagebrush Reference Area — 2008 .......................... 6 <br />Figure1 ..................................................................................................... ............................... 9 <br />Chart 1— All Sampled Areas — Average Ground Cover by Lifeform - 2008 ..... ............................... <br />14 <br />Chart 2 — All Sampled Areas — Relative Ground Cover (Composition) by Lifeform - 2008 ............... <br />14 <br />Chart 3 — All Sampled Areas — Perennial Ground Cover Comparison - 2008 ... ............................... <br />15 <br />Table 1— All Sampled Areas — Average Ground Cover by Lifeform - 2008 ...... ............................... <br />16 <br />Table 2 — All Sampled Areas — Relative Ground Cover (Composition) by Lifeform - 2008 ................ <br />18 <br />Table 3 — Vegetation Production — Summary of Areas Sampled - 2008 ........... ............................... <br />20 <br />Chart 4 — Summary of Current Annual Production by Unit and Lifeform - 2008 ............................ <br />20 <br />Table 4 — Vegetation Cover — Diversity Summary - 2008 .............................. ............................... <br />21 <br />Chart 5 — Number of Grass Species with between 3% & 50% Relative Cover (by Area) - 2008...... <br />21 <br />Chart 6 — Perennial Forb Relative Cover (by Area) - 2008 ............................ ............................... <br />21 <br />Table 5 — Woody Plant Density — Phase III Shrub Plots - 2008 ...................... ............................... <br />22 <br />Chart 7 — Woody Plant Density — Stems per Acre - 2008 ............................. ............................... <br />23 <br />Chart 8 — Woody Plant Density — Woody Plant Population Area - 2008 ......... ............................... <br />23 <br />Table 6 — Woody Plant Density — Phase III - 2008 ....................................... ............................... <br />24 <br />Table 7 — Success Testing — Phase III - 2008 .............................................. ............................... <br />27 <br />