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beltline corridor which was reseeded in the fall of 1997. The reference area is 50m x 1 Om, with <br /> 10, 1Om transects spaced at 5m intervals. Two cover readings were made a .5m intervals, for a <br /> total of 40 cover readings per transect. Thistle density was estimated by counting thistle plants <br /> within a 1 x 1 Om quadrat along each cover transect. <br /> "Reference Area#4" is not actually a reference area, but rather is two parallel 50m transects <br /> along the weed infested outslope of the beltline corridor, adjacent to Reference Area#3. One <br /> cover reading per one meter interval was recorded, for a total of 50 points per transect. Cover <br /> readings for each transect were made on the uphill side of the transect. Due to very high cover <br /> and density of noxious species, including ox-eye daisy, plumeless thistle, Canada thistle, and <br /> musk thistle, no attempt was made to count individual plants for a density estimate. Each cover <br /> transect was marked at both ends with an orange marked wood stake. <br /> Let me know if you have any questions. We should plan to re-sample these areas next year at <br /> roughly the same time. <br /> cc: Randy Pair, OSM Denver <br /> David Berry, DMG <br />