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27 <br />t Table 3. Production means (z) in ams/mz for the affected area and <br />reference area of the Ponderosa Pine-Oak vegetation type. A11en <br />Mine, CF&I Steel Corporation, July-August, 1981. <br />Affected Reference <br />Species or Area Area <br />Category x x <br />Grasses <br />Perennial Grass 0.2 0.1 <br />Andropooon scoparium 1.1 0.4 <br />Carer spp. 0.6 0.7 <br />Danthonia parryi 0.8 0.6 <br />Poa spo. 0.3 -- <br />Stipa scribneri 0.2 0.1 <br />Forbs <br /> <br />Annual forb 0.1 0.02 <br />Perennial forb 0.1 0.4 <br />Anemone patens 0.6 0.2 <br />Antennaria roses 0.1 0.3 <br />Besseya plantaginea 0.1 0.1 <br />Eriogonum j mnesii -- 0.01 <br />Fragaria ovalis 0.1 0.04 <br />Gaiium boreale 0.03 -- <br />PotentiZZa conci,nna 0.1 -- <br />Thalictrum fendlerti 0.3 0.1 <br />Shrubs <br />Cutierrezia sarbtrtrae <br />----------------- 0.02 <br />---------- -- <br />--------- <br />----------------- ----_------ <br />X s --------- <br />X s <br />Total Production 4.6 3.3 3.0 2.0 <br /> <br />