PERMFILE103300 - Laserfiche WebLink

Home Browse Search

ATTACHMENT 2 6-Bresaer sandy loam, 4 to 8 percent slopes. This deep, well drained soil formed in alluvium and residuum weathered from arkosic sandstone. It is on gently rolling uplands and side slopes. Elevation ranges from about 5,300 to about 6,400 feet. Average annual precipitation ranges from about 14 to t7 inches, average annual air temperature is about 47 degrees F, and average irost- free period is about 135 days. Included with this soil in mapping are small areas of Bresser sandy loam, 0 to 4 percent slopes. Also included ere Ascalon sandy loam and Truckton sandy loam that have 4 to !; percent slopes. Typically, the surface layer is grayish brown sandy loam about 7 inches thick. The subsoil is brown sandy clay loam to a depth of about 20 inches and pale brown sandy loam to a depth of about 29 inches. The substra- tum is very pale brown loamy sand to a depth of 60 inches. Permeability and available water capacity are rnoder- sta. Surface runoff is medium, and the hazard of erosion (s moderate. A few gullies are in some places. Less than half of this soil is used for nonirrigated cropland. Wheat is the main crop. The estimated yield for wheat is about 17 bushels per acre. Most of the remaining acreag9 is used for grazing. Some areas of this sot! are used for homesites and other urban pur- poses. Conserving moisture and protecting the soil from ero- sion are the main concerns of management on nonirri- gated cropland. Summer fallow is necessary because of the absence o1 adequate precipitation. Stubble mulch tillage and incorporating crop residue in and on the sur- face are necessary to protect soil from erosion, improve soil filth, and Conserve moisture. Chiseling breaks up tillage. pans. and improves water. infiltration in the subsoil, SVipcropping al right angles to the prevailing wind is also effective in protecting the soil from blowing (figs. t to 4). Tillage operations need to be kept to a minimum. Rangeland vegetation is mainly blue grams. prairie sandreed, needleandthread, little bluestem, and sideoals grams. When range condition deteriorates because of overgrazing or other uses, grasses, such as blue yrama end native bluegrasses, and (orbs, such as hairy yoldas~ let, Increase. Sleepygrass and annuals replace these grasses if the range becomes seriously deteriorated. Seeding the range is recommended to revegetate de- pleted areas in order to protect the soil from wind and water erosion. Native grasses, such as big bluestem, little bluestem, sldeoats grams, and prairie sandreed, are recommended for range seeding. Tame grasses. such as crested wheatgrass, Russian wildrye, pubescent wheat• grass, or intermediate wheatgrass, may also be used. This soil is generally suited to windbreaks and environ- mental plantings. Wind erosion is the main limitation to 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 tows. Supplemental irrigation is generally necessary at the time of planting and during dry periods. Well suited trees that survive best aro Rocky Mountain juniper, eastern redce- dar, ponderosa pine, Siberian elm, Russian-olive, and hackberry. The best suited shrubs are skunkbush sumac, American plum, and Hansen rose. This soil is well suited for homesites and other urban uses and has only minor limitations that can be easily Overcome. Where this soil is used for a sewage lagoon system, special sealing methods are needed to over- come the excessive seepage condition. Th;s Soil is in capability subclass IVe, nonurigated. This soil is in HEL Class 1 for wind and Class 3 for taster. There are. no hydric components in this soil unit. ~, . 1 ..