Laserfiche WebLink
• Table 4. Native grass, fort, and shrub seed mixture (seed mix #4) for demonstration plots at the Seneca <br />Mine. <br />Scientific name Common name Seeding rate m lbs pls/a <br />Grasses: Grasses <br />Agropyron spicatum Bluebmch wheatgrass 1.0 <br />Bromus marginatus Mountain biome 1.0 <br />Agropyron trachycaulam Slendet wheatgrass 1.0 <br />Poa ampla Big bluegrass ].0 <br />Forbs: <br />Balsamorhiza saginata Arrowleaf balsamroot 1.0 <br />Lupirrus alpestris Mountain lupine 1.0 <br />Liirum lewisii Lewis flax 1.0 <br />Penstemon palmeri Palmer penstemon 0.5 <br />Penstemon strictus Rocky Mountain penstemon 0.5 <br />Shrubs <br />Purshia tridentate Antelope bitterbmsh 3.0 <br />Amelanchier utahensrs Serviceberry 3.0 <br />Symphoricarpos albus Snowbeny 3.0 <br />Rosa woodsii Woods rose 2.0 <br />Ribes aureum Golden currant 2.0 <br />Prurars virginiana Chokecherry 4.0 <br />TOTAL 25.0 <br />• Table 5. Native shrub and <br />Scientific name <br />o~_.._. <br />Purshia tridentata <br />Amelanchier utahensis or alnifolia <br />Symphoricarpos oreophilus <br />Rosa woodsii <br />Ribes aureum <br />Prurms virginiana <br />Antelope bitterbrush <br />Serviceberry <br />Snowberry <br />Woods rose <br />Golden currant <br />Chokecherry <br />3.0 <br />3.0 <br />3.0 <br />2.0 <br />2.0 <br />4.0 <br />Forts: <br />Balsamarhiza saginata <br />Lupines alpestris <br />Linum lewisii <br />Penstemon palmeri <br />Penstemon strictvs <br />TOTAL <br />Soil Anatyses <br />Arrowleaf balsamroot <br />Mountain lupine <br />Lewis flax <br />Palmer pens[emon <br />Rocky Mountain penstemon <br />1.0 <br />1.0 <br />1.0 <br />0.5 <br />0.5 <br />21.0 <br />In order to establish the suitability of the demonstration sites and treatments for plant growth, <br />composite soil samples were coltected from each demonstration plot on April 25 and 26, 2001 and <br />analyzed at the Soil, Plant and Water Testing Lab at Colorado State University. <br />Overall, the soils (topsoil and spoil) at all three mine sites have good physical and chemical <br />properties (Tables 6-8). At Colowyo, soil pH ranges from 7.5 to 7.$, macronutrients appear to be <br />adequate for sustained plant growth, organic matter contents are relatively high (3.7% to 4.8%), salt levels <br />• <br />11 <br />