Laserfiche WebLink
gianthyssop), 0.78 Dover and 19~ frequency, and Lathyrus leucanthus <br />• (aspen peavine), 0.48 Dover and 17.28 frequency. <br />The mimed brush type/aspen subtype was the most productive type stuffed <br />with a dry weight production of 1818.9 lbs/acre as congrared to 1103.3 <br />lbs/acre for upland sagebrush. The shrub stratum accounted for 75.38 <br />of the total production, while the forbs and grasses acwunted for <br />15.7 aryl 9.08, respectively. Snowberry (500.5 lbs/acre), Cambel oak' <br />(250.4 lbs/acre) and sagebrush (241.9 lbs/ac:re) were the Trost pznductive <br />shrubs. Of the herbaceous understory, Friogonum umbellatum var. nujus <br />suffer (suffer wildbuckwheat), 40.2 lbs/acre, nettleleaf gianthyssop, <br />36.8 lbs/acre, and slender wheatgrass, 28.4 lbs/acre, evidenced the <br />frost productivity. Percent iroisture content averaged 50.18 for the <br />grass stratum and 64.98 for the forb stratum. <br />Average height of shrub species measured In the mixed brush type/aspen <br />subL-ype was 178.3 an. The largest species was Gambel oak with an <br />average shrub height of 346.3 czn follux'd by servicebPSry (280.5 a~ <br />• and chokec3rrry (138.7 cmil. Snowbet~y was the smallest shrub species <br />with an average shrub height of 63.0 cm. <br />Age-height data indicate that the species coaitaining the oldest <br />irxlividual in the type was Gambel oak (average = 71.4 years ± 10). <br />The youngest species was sna~berry (average = 9.9 years ± 5). Shrubs <br />caiQrising the mixed brush type appeared to be older than those in the <br />upland sagebrush type and younger than those oortprising the aspen <br />subtype shrub stratum (Table 13). <br />Aspen Subtype. The aspen vegetation subtype oo:cprised 112 acres or 4.18 <br />of the total lands on the stu3y area. Nbst of the subtype was located <br />along south and east facing draws at the upper elevations. The subtype <br />was characterized by dense stands of aspen averaging 594.5 trees/acre <br />with a shrub understory coa~rised mainly of i;nuntain snowberry, mimnn <br />ctnkecherry aril Gambel oak. The herbaceous understrJiy was dominated <br />• by western yarrow, nettleleaf gianthyssop and Kentucky bluegrass. <br />- 349c - (Rev. 5/86) <br />