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DAB, M <br /> environmental snennm and engineers <br /> Mid-Continent Resour�es <br /> 1991 Veget6tion Sampling— <br /> Coal Basin Mines <br /> Sampling for Steep Slope Revegetation Test Plots <br /> Vegetation was sampled on the steep slope plots in 1987 and 1989. IMS proposes <br /> to sample the plots for vegetation cover and production using the same method as <br /> in the 1989 sampling. T egetation cover will be measured in each plot using two <br /> 50-foot line transects. sects will be delineated using a tape measure stretched <br /> across the plots about two feet above the ground. At one-foot intervals along each <br /> transect, a specially designed non-magnifying telescope will be used to sight <br /> vertically from the tap toward the ground. Whatever is intersected by the <br /> crosshairs of the telescope will be recorded as a "hit"—a species of plant, plant <br /> litter, or bare ground or rock. One hundred hits will be recorded in each plot. <br /> Vegetation production will be measured using 0.25 m2 quadrats. Quadrats will be <br /> located at five-foot int rvals along each of the 50-foot vegetation cover line <br /> transects—ten quadrats r er transect. Within each quadrat, the green weight of each <br /> plant species will be v sually estimated. Vegetation from four plots will be <br /> harvested by clipping. The harvested material will be weighed to determine moist <br /> weight, oven-dried, a d weighed again. Field estimates of green weight <br /> production will be subsequently converted to oven-dry weights. <br /> Sutey Coal Processing Waste Site <br /> South and west facing aar as will be sampled separately from other areas in <br /> accordance with the pe t stipulation. No reference area sampling will be <br /> conducted. <br /> Vegetation cover transec s will be randomly located. Transects will be 30 meters <br /> long. Azimuths from the point of beginning of each transect will be randomly <br /> determined. An"optical ar"will be used to determine"hits"at regular intervals. <br /> (The optical bar is a frame holding five specially designed non-magnifying <br /> telescopes. The optical b is mounted on a tripod and is used essentially like a <br /> point frame. The telesco s are aimed vertically toward the ground. The <br /> intersection of the cross-hairs in each telescope defines a"point"or hit. Each hit is <br /> recorded as a vegetation species,rock, litter or bare ground.) Only first hits will be <br /> recorded. Each transect 11 be comprised of 50 hits. <br /> Sample adequacy for veg tation cover will be determined separately for each aspect <br /> using the sample adequacy formula given in the Division's vegetation guideline. In <br /> no instance, however,wi more than 40 transects be sampled in either of the two <br /> aspects in the reclaimed a rea. <br /> Herbaceous production b life form will be determined by estimating current year's <br /> herbaceous vegetation from 0.25 m2 quadrats. Fifteen quadrats will be sampled in <br /> each aspect. Five quadra will be harvested to determine green and oven dry <br /> weights. Harvested mateal will be separated by life form (annual and perennial <br /> - 1 - <br />