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Fenced woody plant density concentration areas identified as aspen sites must exceed 945 stems per <br />acre of which 150 stems will be aspen (Populus tremuloides). <br />Fenced and un -fenced woody plant density concentration areas identified as riparian sites must exceed <br />945 stems per acre of which 150 stems will be tree or tall shrub species. Species considered as "tall <br />shrubs" in this report include Saskatoon serviceberry (Amelanchier alnifolia), chokecherry (Padus <br />virginiana ssp. melanocarpa), Gambel's oak (Quercus gambelit), willow (Salix sp.), and silver buffaloberry <br />(Shepherdia argentea). <br />Fenced woody plant density concentration areas identified as upland woody plant sites must exceed 945 <br />stems per acre. <br />Shrub data will be collected during both of the bond release testing years. <br />The location of fenced woody plant concentration areas in the BRB-3 were established by SCC. All other <br />un -fenced portions of the BRB-3 were labeled as "background" density. Should the "background" density <br />fall below the 1000 stems per acre standard, areas labeled as "volunteer" density (totaling at least 10% of <br />the unfenced bond release block acreage) were determined by field mapping and assisted by aerial <br />photography (Routt County DOQQ 2011). These areas were apparently (visually) greater than or equal <br />to 1000 stems per acre (one quarter shrub per mZ; 25 shrubs per 100 m2) and include any non -fenced <br />remnants of woody plant density concentration areas planted by SCC. The sample size of quantitative <br />density data collected in each area in 2015 can be found below (Table 1, below) <br />Table 1. Woody Plant Density Sampling Summary <br />Sampling Area <br />2015 Sample Size <br />Performance Standard <br />"Background" Woody Plant Density Area <br />32 <br />200 stems per acre <br />"Volunteer' Woody Plant Density Area <br />N/A <br />1000 stems per acre <br />Fenced Aspen Woody Plant Density <br />945 stems per acre of <br />Concentration Area <br />40 <br />which 150 will be aspen <br />945 stems per acre of <br />Fenced Riparian Woody Plant Density <br />which 150 stems will be <br />Concentration Area <br />40 <br />tree and/or tall shrub <br />species <br />Fenced Upland Woody Plant Density <br />Concentration Area <br />40 <br />945 stems per acre <br />12 <br />