2005-07-13_REVISION - M2000016 (34)

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This soil is generally not suited to the establishment and growth of tress and shrubs. Onsite investigation is needed to determine feasibility and possible tree and shrub species. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing aeeas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. Rangeland wildlife, for example, deer and antelope, can be attracted by managing livestock grazing and reseeding where needed. This soil is not suited to urban or recreational development because of the flood hazard. Capability subclass [Vw irrigated, VIw nonirrigated; Sandy Bottom land range site. 19 -Colombo Clay Loam, 0-1 % slopes This is a deep, well drained soil on flood plains and terraces at elevations of 4600 to 4780 feet. It formed in stratified calcareous alluvium. Included in mapping aze small areas of soils that have a loam surface layer and some small leveled areas. Typically the surface layer of this Colombo soil is dark grayish brown clay loam about 14 inches thick. The upper 7 inches of the underlying material is pale brown stratified clay loam and loam. The lower part to a depth of 60 inches is very pale brown loam stratified with thin lenses of fine sand, medium sand, and clay loam. Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. In irrigated areas this soil is suited to crops commonly grown in the area such as corn, sugar beets, beans, alfalfa, onions and potatoes. All methods of irrigation that aze common to the area are used. Borders are suitable for small grain, alfalfa, and pasture. Furrow irrigation is used for row crops. Crops respond to application of nitrogen and phosphorus. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedaz, ponderosa pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Wildlife is an important secondary use of this soil. Ring-necked pheasant, mourning dove, and many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. DMG / lZ Permit Page 40 of 8!