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Keenesburg Mine 2016 Vegetation Monitoring Report <br />season perennial grasses which comprised over 72% of the relative cover, while warm season <br />species comprised only 7.8% (Table 18). This result was unexpected given the seed mixture used <br />and the general trends in this region. However, May of 2007 (the first growing season for this <br />site) experienced precipitation that was 186% of average which may have resulted in a flush of <br />cool season grass germination. The subsequent years slowly brought the ratio back to what was <br />anticipated in the seed mixture by 2012. However, the cool season perennial grasses have <br />continued to decline in this reclamation area and were not recorded at all in the 2016 cover data. <br />The overall trends on this area are similar to those described for Reclamation Area 29. However, <br />the pre -emergent herbicide application in 2015 does not appear to have impacted the cheatgrass <br />cover which increased from 9.2% in 2015 to 24.6% in 2016 nor the annual introduced forbs <br />which also increased from 3.0% to 14%. <br />Tahle 1 R- Reelamntinn Area 30 Relative Cover Trends 2009 - 2016 <br />Life Form <br />2009 <br />2010 <br />Relative Cover <br />2011 2012 <br />2014 <br />2015 <br />1 2016 <br />Warm Season Perennial Grasses <br />7.8 <br />17.9 <br />39.6 <br />65.9 <br />28.9 <br />42.2 <br />19.2 <br />Cool Season Perennial Grasses <br />72.8 <br />34.2 <br />20.7 <br />24.0 <br />1.0 <br />0.6 <br />Perennial Native Forbs <br />0.3 <br />1.2 <br />2.1 <br />2.2 <br />Annual Native Forbs <br />2.3 <br />1 0.9 <br />7.5 <br />6.9 <br />12.2 <br />7.8 <br />Annual Native Grass <br />1.2 <br />0.3 <br />1.8 <br />2.4 <br />8.3 <br />2.6 <br />Annual Introduced Forbs <br />6.4 <br />6.4 <br />19.2 <br />24.1 <br />8.3 <br />22.7 <br />Cheatgrass <br />9.3 <br />40.3 <br />11.7 <br />8.4 1 <br />34.7 <br />1 26.1 <br />47.7 <br />Figure 8: Reclamation Area 30 Absolute Cover 2009 - 2016 <br />60.0 <br />50.0 <br />0 <br />a� <br />40.0 <br />0 <br />U 30.0 <br />CO 20.0 <br />10.0 <br />2009 2010 2011 <br />■ Perennial Native Warm Grass <br />■ Perennial Native Forbs <br />■ Annual Native Grass <br />■ Cheatgrass <br />2012 2014 2015 2016 <br />■ Perennial Native Cool Grass <br />n Annual Native Forbs <br />■ Annual Introduced Forbs <br />Habitat Management, Inc. 27 October 2016 <br />