2002-07-18_REVISION - M1985129 - Laserfiche WebLink

Home Browse Search

34-Peyton sandy loam, 4 to 8 percent slopes. This deep, gently sloping to moderately sloping, well drained soil is on upland alluvial fans and valley side slopes (fig. 14). It formed in arkosic alluvium and residuum. Elevation ranges from about 6,400 to 7,300 feet. Average annual precipitation ranges from about 17 to 19 inches, average annual air temperature is about 43 degrees F, and aver- age frost-free period is abent 120 days. Included with this soil in mapping are small areas of Brussett loam, Holderness loam, and Elbeth sandy loam that have 4 to 8 percent slopes. Typically, the surface layer is grayish brown sandy loam and dark grayish brown sandy clay loam about 7 inches thick. The subsoil to a depth of about 32 inches is dark grayish brown, grayish brown, and light brownish gray sandy clay loam. The substratum is light brownish gray and white coarse sandy loam and loamy coarse sand to a depth of 60 inches. Permeability is moderate, and available water capacity is moderate to high. Surface runoff is medium, and the hazard of erosion is moderate. In a few areas, shallow gullies and rills are common. Most of this soil is used for grazing. A few areas are used for honirrigated cropland, and wheat is the main crop. The estimated yield for wheat is about 20 bushels per acre, and it is 27 bushels per acre for oats. The choice of crops is limited by the short growing season. This soil is well suited to windbreaks and environmental plantings and for most engineering uses. Rangeland vegetation is mainly prairie sandreed, mountain muhly, sand bluestem, prairie junegrass, little bluestem, and blue grama. When range condition dete- riorates because of overgrazing or other uses, grasses, such as blue grama and native bluegrasses, and fortis, such as hairy goldaster, increase. Seeding the range is recommended to revegetate de- pleted areas in order to protect the soil from wind and water erosion. Native grasses are desirable for range seeding, but tame species, such as Nordan crested wheatgrass, Russian wildrye, pubescent wheatgrass, and intermediate wheatnrass. may also he aced- num wow miu waic~ CW~IVII. JUJUUItl uiuwn uuayo ni ~u incorporating crop residue in and on the surface are necessary to protect the soil from erosion, improve soil filth, and conserve moisture. Chiseling or subsoiling breaks up tillage pans and improves water infiltration in the subsoil. Planting crops in alternate strips at right angles to the prevailing wind is also effective in protect- ing the soil from blowing. Tillage operations need to be ~ kept to a minimum. This soil is generally suited to windbreaks and environ- mental plantings. Wind erosion is the main limitation to i the establishment of trees and shrubs. This hazard can be overcome by cultivating only in the tree row and leaving a strip of vegetative cover between the rows. Supplemental irrigation is generally needed at the time of planting and during dry periods. Well suited trees that survive best are Rocky Mountain juniper, eastern redce- dar, ponderosa pine, Siberian elm, Russian ~ i, ~~~~ /~„p hackberry. The best suited shrubs are sku ~~, ~ American plum, and Hansen rose. ~y~~~~~ i~~ r'+ ~ ~' This'soil is well suited to the construction c q~'F: ~+ *" and other urban developments and has only minor imi~a- tions that can be easily modified. Where this soil is used for a sewage lagoon system, special sealing methods are needed to overcome the excessive seepage condi- tion. This soil is in capability subclass IVe, nonirrigated.