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• seed mixes as such. The taxonomic treatment of Weber and Wittmann (1996) places Poa ampla <br />(as well as Poa sandbergii) with Poa secunda. Despite this merger, the distinctness of Poa <br />• <br />ampla is worth noting. <br />Photographic Record <br />Within each reclamation and reference area, representative color photographs were taken to <br />document the appearance of the vegetation in 2010 (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 randomly using ESRI ArcMap 9.3 software and Hawth's Analysis Tools for <br />ArcGIS (Beyer 2004). Garmin GPS60 units (accuracy to 3 m) and topographic maps were used in <br />the field to locate random points. Cover transects were randomly oriented. At each cover /woody <br />plant density sampling location, the slope, expressed as a percent, and aspect of the site, in <br />degrees not corrected for magnetic declination, were determined and recorded, as was the <br />orientation of the transect. <br />GENERAL <br />Assessment of Reclamation Adequacy <br />Formal (statistical) hypothesis testing (see below) was undertaken for the Phase II Bond Release <br />Block. <br />SAMPLE ADEQUACY DETERMINATION <br />Sample adequacy was evaluated based on total allowable live herbaceous cover by vascular <br />plants using the following expression: <br />t <br />n,, = (d - x 2 � <br />where: <br />n,„ = minimum sample size <br />s = Sample variance (n -1 degrees of freedom) <br />d = Precision (0.10 for cover and production; 0.15 for <br />woody plant density) <br />0 4 <br />