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• Photographic Record <br />Within each reclamation and reference area, representative color photographs were taken to <br />document the appearance of the vegetation in 2008 (Appendix 4). Within each reclaimed area <br />photograph, a placard identifies the particular area and sample. <br />Statistical Methods <br />Sampling was conducted at randomly located sites. Random map points for sampling locations <br />were generated using ESRI ArcMap 9.3 software and Hawth's Analysis Tools for ArcGIS (Beyer <br />2004). These sample points were located in the field using topographic maps and Garmin III GPS <br />units with accuracy to 10 meters. Cover and woody plant density transects were randomly <br />oriented; production samples were located randomly behind the transect origin. At each <br />cover/woody plant density sampling location, the slope, expressed as a percent, and aspect of <br />the site, in degrees not corrected for magnetic declination, were determined and recorded, as <br />was the orientation of the transect. <br />Assessment of Reclamation Adequacy <br />GENERAL <br />• No formal (statistical) hypothesis testing was undertaken for this interim vegetation monitoring. <br />SAMPLE ADEQUACY DETERMINATION <br />Sample adequacy was evaluated based on total live foliar cover by vascular plants using the <br />following expression: <br />t 2 S 2 <br />n,,, (dxl2 <br />where: <br />n, = minimum sample size <br />s2 = Sample variance (n-1 degrees of freedom) <br />d = Precision (0.10 for cover and production; 0.15 for <br />woody plant density) <br />x = Sample arithmetic mean <br />t = The (a=.10) t-table value for a 1 tail t-test, n-1 degrees of <br />freedom (infinite degrees of freedom may be used if <br />• n>30) <br />4