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Summary of Sampling Design <br />Action <br />Phase III BRB -5 <br />Reference Areas <br />Min. 15 samples <br />Min. 15 samples <br />Quantitative Cover Sampling <br />(and to adequacy *) <br />(and to adequacy *) <br />Quantitative Production <br />Min. 30 samples <br />Min. 30 samples <br />Sampling <br />(and to adequacy *) <br />(and to adequacy *) <br />Woody Plant Density Sampling <br />Min. 30 samples <br />NA <br />- Background <br />(and to adequacy *) <br />Woody Plant Density Sampling <br />Min. 50 samples <br />NA <br />— Concentration Areas <br />(and to adequacy *) <br />Min. 15 samples <br />Min. 15 samples <br />Species Density Sampling <br />(and to adequacy *) <br />(and to adequacy *) <br />Hypoth. Testing for cover, production <br />Success Demonstration <br />and woody plant density <br />NA <br />Approach <br />3 of 4 specified tests for species <br />diversity <br />* Or to fifty samples <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 that was produced in previous years but which was still standing and <br />had not lodged or broken off to become litter. Inorganic material greater than 1 cm in diameter was <br />considered rock. The cover sampling points were optically projected using a Cover -Point Optical Point <br />Projection Device developed by ESCO Associates. 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 />RELATIVE VEGETATION COVER). All -layer absolute cover (ALL HIT AVERAGE COVER column in data <br />2 <br />