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cover of each species by the total vegetation cover with the result expressed <br />as a percent. <br />The total number of species (within each lifeform) observed in each sample <br />provide a measure of "species density", indicating relative species richness of <br />different areas. These measures reflect progress toward return of diverse <br />species composition in the reclaimed areas from a different perspective than is <br />available from examination of cover data alone. <br />Plant Species Listing <br />During the course of the fieldwork, a list of all encountered plant species <br />(quantitative plus incidental observations) was compiled for each reclamation <br />area and the two reference areas. Scientific names used follow Weber and <br />Wittman (1992); common names cited may be found in Beetle (1970), <br />• Nickerson et al. (1976), or Soil Conservation Service (1979). Cross reference <br />to the substantially revised scientific nomenclature for the flora of Western <br />Colorado, as set forth by Weber (1987), may be determined by reference to <br />Weber and Wittman (1992). References for noxious weeds included Thornton <br />et al. (1974) and Routt Co. Extension Agent, personal communication (1993). <br />Photographic Record <br />Within each~e reclamation area sampled, representative color photographs <br />were taken to document the appearance of the vegetation in 1998. Within <br />each photograph, a placard identifies the particular reclamation area being <br />illustrated. <br />Statistlca/ Methods <br />Sample adequacy calculations were carried out using the formula as prescribed <br />. by the Colorado Mined Land Reclamation Board (CMLRB) (1988): <br />5 <br />