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3.2.2 Irrigated Pasture - Reference Area <br />A total of 19 plant species were encountered within the Irrigated Pasture Reference Area evaluated <br />in 2015 (Table 2). Ground cover in the Irrigated Pasture Reference Area (Chart 1 and Table 2) consisted <br />of 90.53% live vegetation, 0.00% rock, 6.83% litter, and bare ground exposure of 2.63%. Desirable <br />perennial cover across the unit averaged 89.50%, with annual and biennial cover averaging 0.73% <br />absolute cover. Noxious weeds cover was 0.30% absolute. Dominant taxon was tall fescue with 41.93% <br />average cover. Current annual herbaceous production across the Reference Area averaged 1,992.2 <br />pounds per acre based on air-dry samples (Table 3). Desirable perennial vegetation contributed 1,909.4 <br />pounds per acre in 2015 (Table 3 and Chart 2). <br />Chart 1 <br />New Horizon- Average Ground Cover by Lifeform - 2014 & 2015 <br />0% <br />Phase III Block Reference Area <br />2014 <br />Page 12 <br />Phase III Block Reference Area <br />2015 <br />o Bare ground <br />90% <br />■ litter <br />80% <br />- <br />- - <br />■ Rock <br />70% <br />■ Noxious / Aggressive <br />M <br />Weeds <br />60% <br />o <br />❑Annual and Biennial <br />c� <br />Forbs <br />500/0 <br />❑Annual Grasses <br />i <br />40% <br />■Shrubs and Trees <br />30% <br />❑Sub -Shrubs <br />c3 Perennial Forbs <br />20% <br />❑ Perennial Grasses <br />100/0 <br />- <br />- - <br />- <br />0% <br />Phase III Block Reference Area <br />2014 <br />Page 12 <br />Phase III Block Reference Area <br />2015 <br />