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establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is <br />essential and should be included in plans for habitat development, especially in areas of <br />intensive agriculture. <br />This soil has good potential for urban and recreational development. Increased population <br />growth in the survey azea has resulted in increased homesite construction. The chief <br />limiting soil features for urban <br />development are the shrink-swell potential of the subsoil as it wets and dries and the <br />limited ability of this soil to support a load. Septic tank absorption fields function properly, <br />but community sewage systems should be provided if the population density increases. <br />Because of the moderately rapid permeability of the substratum, sewage lagoons must be <br />sealed. Lawns, shrubs, and trees grow well. Capability subclass lie irrigated. <br />10 -Bankard sandy loam, 0-3 % slope <br />This is a deep, somewhat excessively drained soil on flood plains aGelevations of 4450 to <br />5000 feet. It formed in stratified recent alluvium along streams and rivers. Included in <br />mapping are numerous sand and gravel bards and small areas of noncalcareous soils. <br />Typically the surface layer of this Bankard soild is brown sandy loam about 4 inches thick. <br />The underlying material to a depth of 60 inches is pale brown calcareous sand stratified <br />with thin lenses of sandy loam, loam, and fine gravel. <br />Permeability is moderately rapid. Available water capacity is low. The effective rooting <br />depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. <br />This soil is suited to limited cropping. It is sandy and subject to flooding. Pasture is the best <br />use. Tall wheatgrass, tall fescue, and annual sweeclover are some of the most suitable <br />crops. Light, frequent irrigation by furrows and flooding is best. Commercial fertilizer <br />improves [he amount and value of forage produced. <br />The potential native vegetation is dominated by switchgrass, indiangrass, sand bluestem, <br />sand reedgrass, sideoats grama, needleandthread, and blue grama. Much of this range site <br />includes other soils and vegetation in such a complex pattern that it is difficult to map them <br />separately. Potential production ranges from 2500 pounds per acre in favorable years to <br />1500 pounds in unfavorable years. As range condition deteriorates, the tall and mid grasses <br />decrease; blue grama, sand dropseed, and fortis increase; and forage production drops. <br />Undesirable weeds and annuals invade the site as range condition becomes poorer. <br />Management of vegetation should be based on taking half and leaving half of the total <br />annual production. Seeding is desirable only in areas large enough to interseed or to <br />prepare a seedbed. Switchgrass, sand bluestem, sand reedgrass, sideoats grama, little <br />bluestem, blue grama, pubescent wheatgrass, and intermediate wheatgrass are suitable for <br />seeding. This soil can be seeded by using an interseeder or a firm clean sorghum stubble. A <br />grass drill is required. Seeding early in spring has proven most successful. <br />DMG 172 Permit <br />Page 39 aj81 <br />