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Section 816.112 (a) Continued. <br />• According to a computer search run on the Plant Information Pletwork of <br />Colorado State University, all of the exotic species included in the <br />mixture are found naturally in Routt County. <br />The introduced species are included in the mixture because they are <br />necessary to control erosion and because they provide forage for <br />animals in the area. Various researchers have documented the <br />superiority of the introduced species under similar conditions. These <br />studies are summarized as follows: <br />Of the species recommended for seeding the mountain browse type in <br />Colorado, the Colorado State University (1974) recommends desert <br />wheatgrass, hard fescue, intermediate and pubescent wheatgrasses, <br />russian wildrye, and smooth brome. The species recommended by Hull, <br />et. al. (1952) for reseeding the mountain brush type include desert, <br />pubescent, and intermediate wheatgrasses, hard fescue, smooth brome, <br />• russian wildrye, alfalfa, and orchardgrass. <br />McGinnies, working on rangeland two miles south of Hayden, Colorado, <br />reported that 15 species were planted in a test plot in 1945 and <br />evaluated until 1958. The most outstanding species on this plot was <br />pubescent wheatgrass followed by intermediate wheatgrass. These <br />species produced the greatest amount of soil protection and forage. <br />Desert wheatgrass was the next best species. Beardless wheatgrass was <br />inferior in initial establishment but appeared to be improving. <br />Species performing fair to poor included green needlegrass, big <br />bluegrass, and western wheatgrass. Species considered failures were <br />tall wheatgrass, stiffleaf wheatgrass, blue wildrye, and short-awned <br />barley. <br />Working on disturbed soils at Axial basin, Draves and Berg (1978) <br />reported the results of 24 grass and 16 forb sepcies. Of the 24 <br />species planted, second highest plant cover was produced by <br />• intermediate wheat-grass, pubescent wheatgrass ranked fourth, smooth <br />816-144 Revised 04/10/87 <br />