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• 2.4 Section 16 <br />2.4.1 516009 <br />S160O9 is comprised of 4.5 acres of gently sloping revegetation that has a predominately easterly <br />aspect. This unit was seeded in 1996 and therefore, has undergone seven growing seasons prior to <br />sampling in 2003. A total of 35 plant taxa were observed in the unit (see Table 19). Current annual <br />production across the unit averaged 2,919 pounds per acre in 2003 with perennial grasses the dominant <br />ptegory (see Table 1). Ground cover (Fgure 14) consisted of 61.9% live vegetation, 0.4% rock, 0.0% <br />standing dead, 24.7% litter, and bare soil exposure of 13.0%. Perennial cover across the unit averaged <br />58.6% with annual and biennial cover averaging only 3.3%. Dominant taxa were intermediate <br />wheatgrass, smooth brome, thickspike wheatgrass, and Kentucky bluegrass with 27.2%, 8.8%, 7.7%, <br />and 5.1% average Dover, respectively. Woody plant density was determined from 20 heft transacts. <br />Density (Table 2) totaled 152 young and mature stems per acre with big sagebrush the dominant woody <br />plant. With regard to diversity, 516009 exhibited 4 perennial grasses and 0 perennial forts with between <br />3% and 50% relative cover. <br />Unit 516009 currently does not pass the bond release diversity standard of 3 perennial grasses and <br />• 1 perennial fort with between 3% and 50% relative cover (the fort component is missing, but doer <br />milkvetch nearly provides enough cover). This unit should readily pass both the cover and production <br />bond release comparisons to the reference areas. This unit does not presently meet the woody plant <br />standard of 90% of 1000 stems per acre and will probably not meet this in the foreseeable future. See <br />Appendix AA -Section 7.4 for a discussion on options and recommendations with regard to woody plant <br />density. Noxious weeds and annual bromes appear to be well controlled in this unit. <br />At present, 516009 is a good example of an improved pasture grassland community that would <br />contribute to the local system as foraging habitat for wildlife (espedally elk), as well as provide a variety <br />of management opportunities for livestock grazing. <br /> <br />xennewa Energy Co. ~ Colowyo hone Page Sp Revegeratlon NbnnoNng -2003 <br />