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C` <br />• <br />and the lower montane forest ecosystems (Harr, 1967). Species from <br />• both ecosystems are found at the site. A varied topography (direction <br />and angle of slopes), soil types and textures, and elevation differences <br />add to a rich flora. Also, the direction of the canyon generally runs <br />northwest-southeast, an exception to the usual direction for other <br />canyons in this part of the Front Range. <br />Disturbed ground at the Schwartzwalder site occupies less than <br />20~ of the total land area in the SE1/4 of Section 25. An ample <br />number of native (and/or introduced) seed plant species are ,jvailable <br />for revegetation of disturbed areas. Ponderosa pine, red cedar, <br />mountain mahogany, Oregon grape and a dozen grass species( m+irked <br />in Table #1 with an asterisk) are plants which will respond dell to <br />disturbed field conditions in this part of the Front Range (USDA, 1975). <br />Many of the seed plants available from natural and greenhouse <br />supplies, including ponderosa pine, initially grow best from seed <br />and sapling stages when the soil conditions are in a low nutrient <br />state, as with disturbed ground (Brock, 1966). Additionally., it <br />is believed that most terrestrial seed plant species possess root <br />fungi (mycorrhizae) that mutually benefit the fungus and host: <br />species alike. It is interesting to note that root fungi, especially <br />ectomycorrhizae, are associated with such common species as F~onderosa <br />pine (Wright, 1957), and that maximum growth for the symbiont:s is <br />attained when the soil is in a low-nutrient condition. <br />If grazing is initially kept to a minimum at the project. site, <br />presently distuubed areas of ground should revegetate readily. Weedy <br />species will compete with more desirable types of vegetation in the <br />• usual and predictable phases of plant succession for several seasons <br />J-11 <br />