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1 <br />1 <br />VEGETATION SAMPLING FOR 1995 <br />1 .. <br />Methods <br />Vegetative cover sampling was conducted on 9 and 10 August, 1995 using 50-meter point- <br />intercept transects. The actual number of transects conducted in each sampling areas was <br />' detetmined using the Snedecor-Cochran sample adequacy formula (Equation 1). <br />N~ _ <br />= rZ sZ <br />(~)z <br />' Where: (1) <br />' N required number of transects or quadrants, <br />t - the y,,,~ value for adouble-tailed t-test with n-1 degrees of freedom <br />at the 90% confidence level, <br />s2 sample variance, <br />d - 0.1 (the level of precision for estimate of the mean to be within <br />- 10% of the actual mean), and <br />x sample mean. <br />Transects were randomly located within both the reference and reclaimed areas. Data from the <br />transects were used to determine sample adequacy. Sample adequacy was reached on each area. <br />' Ground cover was evaluated along each transect at one-meter intervals. Cover was classified <br />as vegetation, litter or rock. Lack of cover was classified as bare soil. Vegetation was further <br />classified by species. Each transect consisted of 100 point samples. Each point was determined <br />' by projecting an ocular sighting device vertically downward to the sample location on the <br />transect and recording all "hits" on vegetation. The "hits" were used to estimate total vegetative <br />cover for each transect according to Equation 2. <br />' Percent Tota[ Veg. Cover = No. hits on vegetatiors (Z) <br />' total number of points <br />The composition of plant species in each area was evaluated using data acquired from the point- <br />' intercept transects. Data from the transects were used to determine the relative cover of each <br />species detected (Equation 3). <br />' % Relative Cover of Species X = % Cover of Species X (3) <br />Tota[ Veg. Cover <br />' A-1 <br />