2014-02-20_REPORT - C1981019 (10)

Home Browse Search

Colowyo Coal Company 2013 Annual Reclamation and Hydrology Report Figure 4 -1- Colowyo Reclamation Seed Mixture Tables Continued Table 2.05 -9 Life Seeds/ Rec. PLS Avg. seeds App. Species Synonym Common Name Origin Form lb. lbs. / acre / sq. foot Agmpyron spxatum memw Pseudoroegneria spaata ssp. inerme Beardless Biuebunch Wheatgrass N Grass 117,000 0.50 1.3 Agropyron trachycaulum Elymus bachycaulus ssp trachycaulus Slender Wheatgrass N Gass 159,000 0.20 0.7 Bromus marginatus Bromopsis margmatus Mountain Brome N Grass 90,000 0.30 0.6 A E Elymus onereus Leymus cinereus Great Basin Wiklrye N Gass 130,000 0.20 0.6 vR R SbW wndula (rte Tax. ro ccc) Nassdlla vrndula Green Needl rass N Gass 181,000 0.20 0.8 m Arternme ludowaana Louisiana Sagewort N Forb 33,600 0.50 0.4 r� g ,g Astragalus ocer Qcer Milkvetch I Farb 145,000 0.30 1.0 f Llrrum lewali Lewis Flax N Farb 293,000 0.20 1.3 - 3 Atnplex canescens Fourwing Saltbush N Shrub 52,000 1.25 1.5 Purshia tridentata Bitterbrush N Shrub 15,000 3.00 1.0 Rosa 15oodsh Wood's Rose N Shrub 45,300 0.50 0.5 Symphoncarpos rotundifolnus Mountain Srawberry Big Bluegrass N N Shrub Grass 75,000 882,000 1.00 1.7 =03. Poa ampla Festuca saximontana Roc Mountain Fescue N Grass 680,000 ! Achdlea mrllifolium Western Yarrow N Forb 2,770,000 0 10 6.4 o Penstis- pal- Palmer Penstemon N Farb 610,000 0.10 1.4 e Pensfemon stric us Roc Mountain Perstemon N Forb 592 000 0.20 2.7 FArtemisia cana Silver Sagebrush N Shrub 850,000 0.75 14.6 Artemisa Wdentata vaseyana Mountain Big Sagebrush N Shrub 2,500,000 2.00 114.8 S Ogsothamnusnauseosus RubberRabbitbrush N Shrub 400,000 0.30 2.8 Gres PLS/ seeds /R' subtotal - 1.8/11.25 Forb PLS/ Seede /h' subtotal = 1.4/13.21 Shrub PLS/ Saede /h2 Subtotal = 8.8/136.94 Total 1 12.001 161.44 -The application techniques indicated here should be implemented as follows at the discretion of the reclamation coordinator. 1) If a seed drill is to be used, only those species under that subheading should be drilled. Those spades under the broadcast heading should be broadcast by are of two methods. If a standard rotary seed spreader is utilized to "spray" seed across the ground, then a very light harrowing should follow (e.g., Oght tine method). Under this scenario, a single pass procedure could occur If the rotary spreader Is attached to the seed drill and the seed drill also pulls a light tine harrow. If the second broadcast method is utilized (such as use of a Truax 'Trillion" seeder that "dribbles" seed between ca@ipacker wheels), a second pass with different equipment would be necessary. However, a third scenario would also be a very effective means to plant seed. Under this last scenario, all seed would be broadcast with the use of equipment such as the Truax "Trillion" seeder. This would be a single pap protocol and NO harrowing should be utilized. This last method Is preferred. Seed Mix Comments 1) The correct sagebrush seed (Artemisia vaseyana - pauciflora) from sources as close as possible to the Axial Basin will be requested from seed suppliers along with tag verification. A stipulation will be added to bid documentation to require the successful supplier(s) to verify sage subspecies and collection location and elevation. Page 4 -3