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Summary of Sampling Design <br /> Evaluation Parameter Phase II BRB-2a Phase II BRB-3 Reference Areas <br /> Min. 15 samples Min. 15 samples (to <br /> Min. 15 samples (to <br /> Quantitative Cover Sampling (to adequacy as adequacy as <br /> adequacy as necessary') <br /> necessary') necessary') <br /> Quantitative Production <br /> NA" NA" NA" <br /> Sampling <br /> Woody Plant Density <br /> NA" NA" NA" <br /> Sampling <br /> NA"—Sampled in 2016 NA"—Sampled in 2016 NA"—Sampled in <br /> Species Density Sampling for informational for informational 2016 for informational <br /> purposes purposes purposes <br /> Hypoth. testing for cover; Hypoth. testing for cover; <br /> 3 of 4 specified tests for 3 of 4 specified tests for <br /> Success Demonstration species diversity species diversity <br /> NA <br /> Approach (Provided for (Provided for <br /> informational purposes informational purposes <br /> only) only) <br /> Up to a maximum of 50 samples or use of upper 90%confidence limit after 15 samples <br /> "Not Applicable—Phase II bond release is concerned with cover values only <br /> Cover Sampling <br /> Cover data were collected along 50 m transects using a point-intercept method in which data were <br /> recorded as interceptions of a point with a plant species, litter, standing dead plant material, soil, or rock. <br /> Plant material produced during the current year and still standing was tallied by species. Litter was <br /> considered to be any organic material that had fallen or had begun to fall to the soil surface. Standing <br /> dead was any dead plant material produced in previous years, but which was still standing and had not <br /> lodged or broken off to become litter. Inorganic material greater than 1 cm in diameter was considered <br /> rock. The cover sampling points were optically projected using a Cover-Point Optical Point Projection <br /> Device developed by ESCO Associates. The 50 m transects were randomly located and randomly <br /> oriented in the reclaimed and reference areas. One hundred points were collected along each transect. <br /> At each meter along the 50 m length, points were projected 0.5 m to the right and 0.5 to the left of the <br /> transect, thus minimizing trampling effects. <br /> First hit interceptions were used to calculate absolute top layer foliar cover (see FIRST HIT AVERAGE <br /> COVER column in data tables) by dividing the number of interceptions for a particular species or ground <br /> cover type by the total number of points taken (100). First hit relative vegetation cover was calculated by <br /> dividing first hit absolute cover for each species by the total first hit vegetation cover(see FIRST HIT <br /> 2 <br />