Laserfiche WebLink
3.0 RESULTS <br />Tabular results of raw data for the aforementioned sampling efforts are presented at the rear of this <br />document on Tables 6 through 14. However, summaries of the cover, production and woody plant <br />density data are provided below in Tables 1 through 5 and Charts 1 through 3. Perusal of Table 1 gives a <br />quids indication of the overall success of the various revegetation efforts when comparing with reference <br />area data and / or standards. With regard to plant cover, all areas sampled in both 2001 and 2004 pass <br />the success comparison (90% of the reference area value) for "perennial only" ground cover. Three of <br />the ftve areas pass (excepting the South Fan and 2 West Portals areas) when al! life forms are compared. <br />This "failure° is due to low cheatgress levels in the t+evegetatad areas as compared witft the elevated <br />levels found in the Shadswle Reference Area in 2001'. With regard to diversity, the five revegetated <br />areas analyzed pass a majority of standards with most of the failures due to insufficient cover by <br />perennial, wane-season grasses (see Table i). <br />The Greasewood Reference Area was established as a new area in 1999 and is located <br />approximately 1,500 feet northwest of the Cameo Refuse Disposal Area No. 1 along the east-facing <br />mliwial toe slope adjacent ib the BI.M Bookciiffs access road and the ephemeral drainage. Ground cover <br />in this area consisted of 38.7% live vegetation, 5.7% rods, 33.1% litter, and bare soil exposure of 22.6% <br />(Tables 2 and 10). Perennial cover across the unit averaged 10.6% with annual and biennial cover <br />averaging 28.1%. The dominant taxa were cheatgrass (Anisantfia tectorum), greasewood (SarLrobatus <br />vermiculatus) and shadscale (Atriplex confertifoiia) with 26.05%, 5.15%, and 1.95% average cover, <br />respectively. Woody plant density (Tables 5 and 14) totaled 1,190 young and mature stems per aae <br />with greasewood and shadscale the dominant taxa. Current annual production totaled 102.4 pounds per <br />acre with perennials contributing only 6.6 pounds per acre (Tables 4 and 12). <br />' Comparison with the Shadscale Reference Area was made for this analysis even though data are from different - .- <br />years, It was berieved that the value of the comparison for managerial information out-weighed the statistical <br />invalitlity tlue to the difterem sampling years. <br />SNOWCAP COAL COMPANY Page 7 Revegetatlon Evaluation 2004 <br />