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• 2.5.2 FAOO2 <br />FA002 is comprised of 13.80 acres of moderately sloping revegetation/native that has a <br />predominately southeasterly aspect. This unit was acddentally burned in the summer of 2002 and <br />seeded during the fall of 2002, and therefore, has undergone one growing season prior to sampling in <br />2003. A total of 32 plant taxa were observed in the unit (see Table 19). <br />Seedling emergence data (Tables 16 and 56) from 40 quadrats in FA002 revealed that there was an <br />average of 1.53 perennial seedlings per square foot. An average density of 1.25 was attributed to <br />perennial grasses while 0.23 seedlings per square foot were from perennial fortis and 0.05 seedlings were <br />attributed to shrubs. Annual species, especially cheatgrass and Russian thistle, contributed an average of <br />14.13 seedlings per square foot. Woody plant density was determined from the 40 quadrats and totaled <br />2,178 shrub seedlings per acre (Table 17) with rubber rabbitbrush (Chrysothamnus nauseosus) and low <br />rabbithrush (Chrysothamnus viscidiflorus) the dominant woody plants. <br />There is fair emergence by seeded grasses and the burned Gambel oak ( Quercus gambelir) and <br />servioeberty (Amelanchier alnifolia) are resprouting well. The noxious weeds, Canada thistle, bull thistle, <br />• and houndstongue (Cynoglossum o~cinale) are found in abundance at the toe of the slope with the road <br />berth. Prompt spraying is recommended here to control the spread of these weeds onto the revegetated <br />area. Because of the dense abundance of cheatgrass throughout the unit, use of the herbicide Oust or <br />Plateau for control is also recommended. <br />• <br />Kennecott Energy Co. /Colowyo Mine Page 65 Revegetation MonNOAng -2003 <br />