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~' reference area was drawn on the vegetation map indicating the reference areas, <br />then the midpoint of this line was located. After the midpoint was estab- <br />lished, a perpendicular line was drawn bisecting the reference area. Random <br />numbers were generated from an HP25 calculator which was used to establish <br />points from which additional lines were placed perpendicular to the midpoint <br />line in either a left or right direction. For even numbers, the additional <br />line was extended to the right of the midpoint line while for odd numbers, the <br />perpendicular line was extended to the left of the midpoint line. Another <br />random number was utilized to determine distances from the midpoint line along <br />the additional perpendicular line for placement of quadrat or transect. Once <br />the placement was established, another random number from 1 to 360 was used to <br />determine the orientation of the transect. All random numbers were generated <br />• and sample points located on a map prior to going to the field. <br />Time of Sampl__ing <br />All study plots were observed and data obtained during the third week of <br />July 1981. <br />Cover Data Measurements <br />Cover data was obtained at thirty randomly selected transect locations <br />within each reference area utilizing the point transect technique. At each <br />transect, cover was determined at 30 points along the transect by dropping a <br />hand held pin perpendicular to the ground and observing hits on vegetation, <br />rock (greater than twa centimeters square), litter (standing and ground), and <br />bare ground. First hits on bare ground, rock, litter and species were recorded <br />• while subsequent hits on species were recorded separately. Percent cover was <br />~. <br />-2- <br />