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Figure 2: Systematic Vegetation Sample Location Selection <br />Kev <br /> ~r Sampling Unit Boundary <br /> o Sample Location Start Point <br /> <br /> <br /> <br /> <br /> RECEIVED <br />'JUN 1 <br /> 7 ~ggg <br />Division of Minerals & Geol <br /> i <br />X <br />~ <br />Potential Reclaimed Sample <br /> <br /> <br />~ Y <br />Fixed Poinl of Reference I ~ <br />(e.g., Fence Corner) <br />X = 12~ feet <br />Reclaimed Sampling AreaTransect <br />Alignment will approximate <br />45 degrees to orientation of woody and <br />herbaceous plant life strips <br />Sample Location <br />Y = 246 feet Grid <br />GRID POSITIONING <br />o9Y <br />For this example the grid spacing is set at 400 feet. The X 8 Y coordinate grid-positioning-lines are set at the same length as <br />one grid interval. One random whole number is generated for each coordinate line within this interval length (i.e., between 0 <br />and 400 feet, let X = 123 feet, Y = 246 feet). The grid is aligned with these coordinates and thus located randomly over the <br />area to be sampled. Sample locations are then randomly selected from the 50 grid intersections that fall within the area to be <br />sampled. Sizing and locating the grid in this fashion assures that the entire area is represented in the sample population and <br />that a given area Is not underemphasized or overemphasized. <br />50 Meter Transacts will be used with the 10-point frame being positioned every 5 meters along the transect. For transacts <br />which cross the perimeter the transect direction will be randomly redirected back into the sampling area. For the reference <br />area transect direction will be randomly chosen from 8 points of the compass. <br />The reclaimed area has "strips" of woody and herbaceous vegetation intermingled, To avoid biasing the sample by aligning a <br />sample transect along such a row, transacts will be oriented at 45 degree angles to the rows. The direction the transect <br />proceeds from the sample location start point will be randomly selected from the "four compass points" aligned with these <br />transacts. <br />Transact Orientation <br />