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2.2.6 EP051 <br />EP051 is comprised of approximately 32 northeastern facing acres of moderately sloping <br />revegetation. This unit was seeded in 2009 (using the new grassland seed mix for grazingland land use <br />from TR-72) and therefore, was undergoing its first growing season in 2010. An average of 12.6 plants <br />per square foot was observed in the unit (Compendium 6) with perennials comprising 3.9 of the 12.6 <br />plants / ft2. Perennial seedling emergence in EP051 consisted of grasses, forbs, and shrubs with 3.4, 0.5, <br />and 0.04 plants per square foot, respectively. Annual seedling emergence consisted of grasses and forbs <br />with 0.6 and 8.1 plants per square foot, respectively. <br />It is Cedar Creek's observation that greater than three perennial plants per square foot is generally <br />considered to be "good" reclamation (3.9 were observed). However, 8.7 annual forbs per square foot <br />suggest that there could be some competition for survival. This scenario is not uncommon on Colowyo's <br />reclamation and the dominant annual forb was field pennycress (Th/aspi arvense). This species flourishes <br />after disturbance, but usually does not persist and present significant cover values when facing <br />competition from perennials (a condition normally observed in young reclamation at Colowyo). Ground <br />cover evaluation in accordance with Colowyo's monitoring schedule is recommended in 2011. <br />Cedar Creek Associates, Inc. 22 Colowyo Mine <br />2010 Revegetation Monitoring Report