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• GRAND TOTAZ is for percent cover by life forms. The values <br />at the bottom for litter, bare ground, and vegetation always <br />total 100` and are termed TOTAZ COVER. These data are used <br />for erosion calculations as discussed earlier. <br />- Of both study areas the pinyon-juniper type had the <br />highest total understory vegetation cover (25.20 followed <br />by mountain shrub (22.70 , big sagebrush (21.390, and mountain <br />_ shrub - north facing slope (18.0;6), (Table 2). Cover on the <br />reference areas averaged 30.1 on the mountain shrub reference <br />- area and 17.1~d on the pinyon-juniper reference area. <br />Perennial grasses exhibited the highest cover on the <br />mountain shrub type (3.96). The remaining three types ranged <br />from 2.9~ on the mountain shrub - north facing slope to 0.2~ <br />• on the pinyon-juniper type. Big sagebrush had an average <br />- perennial grass cover of 2.2~. Grasslike species ranged from <br />none on the big sagebrush and mountain shrub - north Pacing <br />slopes to 1.2~ on the mountain shrub type. Pinyon-juniper <br />__ had perennial forb cover of 8.4~, highest of the four <br />vegetation types sampled• The remaining vegetation types <br />had perennial forb cover ranging from 6.1~ in the mountain <br />shrub type to 4.096 in the mountain shrub - north facing slope <br />type. Mount sin shrub and pinyon-juniper had half-shrub cover <br />of 0.3~ while all other types had half-shrub cover 0.1~ or <br />less. Shrub cover less than one inch stem 3iameter was 9.7~ <br />on the mountain shrub type and the remaining types exhibited <br /> <br />- 17 - <br />