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• Cheatgrass L3~cvmu.~ #ectvaum, an introduced annual, is the <br />prevalent graminoid with 2.3 percent cover. Native, cool season, mid to <br />tell bunchgrasses comprise the remainder of the graminoids providing cover. <br />These are: bluebunch wheatgrass A~tvpyavn ~pic~.tuin 11.7 percent cover!, <br />Indian ricegrass Oa~~vp~i.~ h~mertvidea 10.7 percent cover), and needle and <br />thread S#ip¢ coma.#a 10.7 percent covert. Other graminoids in the community <br />but not occurring along cover transacts include: western wheatgrass <br />A~cvpyicvn ami.thi_i., smooth brooe L3~cvmvpai~ ene~rni~, sedge Caic¢x sp. , junegrass <br />Kve.Leua macvcan#ha, bluegrass Poa cf. aga~~t~ertii.~, mutton grass Pva <br />~endLeuana, and squirreltei I Sc.tan,ivrt .Lvngi/_v.LlJVa. <br />Forb cover due to past management procedures is extremely sparse, <br />and consists of: goldenrod Sv.C.i.dagv apa~~i~Cvna, yellow cryptantha C.cyp#antha <br />fLava, white sweetclover Me.Li,Cv#u~ a,Lba, and tumble-mustard Si.~yrr~bai.um <br />a.(#ia~imum are the major species present. Other fortis of lesser abundance <br />include golden aster He#ezv#hecu v.i,LLv~a, burning bush Kvchia a.ievyeaiana, <br />mechaeranthera Machaertartthe~ayainde,G:.oid¢a, and scarlet globemallow <br />Spnaeaa,Lcea coccinea. <br />Production <br />2 Total production for the Pinyon2Juniper Woodland ranges from <br />3.5 g/m to 42.9 g/m2 and averages 16.6 g/m or 148 pounds per acre. This <br />is extremely low for this vegetation type. Graminoids produce 12.7 g/m2 or <br />• 77 percent of the total herbaceous biomass. Bluebunch wheatgrass with a <br />production of 5.2 g/m2 alone accounts for 41 percent of the total graminoid <br />production. Other important producers are: cheatgrass 12.3 g/m2), junegrass <br />11.6 g/m2), and Indian ricegrass 11.4 g/m21. Total forb production is 3.9 g/m2 <br />or 23 percent of the herbaceous production. See Table 3.2.1-2. <br />Density <br />Total tree density in the Pinyon-Juniper Woodland is moderately <br />high at 290 trees per acre 1717 per hectare(. Pinyon pine is the most abun- <br />dant tree 156.9 percent abundance) with 165 trees per acre 1408 per hectare(. <br />Rocky Mountain juniper is co-dominant 143.1 percent abundance) with 125 <br />trees per acre 1309 per hectare). Diameter at breast height lDBH1 for pinyon <br />pine averages 19 centimeters while tree height averages 6 meters. Rocky <br />Mountain juniper is smaller with an average DBH of 15 centimeters and an <br />average height of 4 meters. See Table 3.2.1-3. <br />Total shrub density for this vegetation type is sparse averaging <br />613 shrubs per acre (1,515 per hectare(. Big sagebrush is the most abundant <br />shrub with 183 shrubs per acre followed by fringed sage 1123 per acre(, <br />mountain mahogany 189 per acre), low rabbitbrush Chrtyev#hmtvtu~ VNC~dcf_Cv2u.~ <br />181 per acre(, Saskatoon serviceberry 146 per acre(, end mountain snowberry <br />l3B per acre(. Other shrubs occurring in the community include: rubber <br />rabbitbrush, winterfaT, Gembel oak, skunkbrush, Woods rose Rv~a ruovd~u , <br />and broom snakeweed Xan,t/ivicepha.(um ~artv.thaae. See Table 3.2.1-4. <br />• <br />-10- <br />