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2002 Reclamation Area 11.3 100/99.1 11.4 NA <br />"All-hit" ref. area cover standard for 2004 (Adj. Means weighted by % of Affected Area) = 24.4%. <br />90 percent of 2004 ref. area cover standard = 0.9 z 24.4 = 22.0% <br />'Percent "all-hit" cover (absolute) by herbaceous species as corrected for "allowable" annual and biennial <br />cover (i.e. no more than 10 percent relative cover allowed, See CDMG 1995, 1.IV.A.). Cover by noxious <br />weed species also subtracted. <br />"Ratio of relative "first-hit" cover of herbaceous species to relative "all-hit" cover of herbaceous species <br />° Seneca IIW extended reference area values from data collected in 2004 <br />° Seneca IIWS extended reference area values from data collected in 1997 <br />As can be seen in Figure 1, the allowable total "all hit" herbaceous cover observed in the 1997 <br />reclaimed area sampled exceeded 90 percent of the standard set by the reference areas. That <br />of the 2002 reclaimed areas did not (though its confidence interval nearly reached that level). <br />The 2002 seedings were subjected to very dry conditions and consequently, the two-year old <br />stand of perennials is understandably limited in abundance as of 2004. <br />Inasmuch as the 1997 reclaimed areas at the Seneca IIW Mine were also sampled in 2001, a <br />• year that was close to average in moisture, it is interesting to observe the changes in cover <br />values between 2001 and 2004 (see ESCO 2002). Total vegetation cover had increased <br />substantially between the two years (35.0% to 51.9%). Cover by native perennial cool season <br />grasses remained about the same but cover by alfalfa tripled in the three-year period.. Cover by <br />annual lifeforms was similar in both years. There was an increase in cover by native perennial <br />fortis from 2.4 percent of total vegetation cover to 3.5 percent of total vegetation cover. <br />2002 reclamation at the Seneca IIW Mine was as would be expectable, heavily possessed of <br />cover by annual species. Given the difficulty of establishment during such a dry period, the <br />progress of the development of perennial cover is as much as can be reasonably anticipated. <br />Herbaceous Production <br />• <br />Observed production values and derivation of the 2004 herbaceous production standard are <br />compiled /documented in the table below: <br />Seneca IIW 2004 <br /> <br />Phase III Herbaceous Production Standard <br />Vegetation Type Mean Herbaceous Production (Ib/ac) % of Aff. Area <br />Sagebrush/Snowberry° 717.3 38.0 <br />10 <br />