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SOIL SURVEY
<br />8 - 60 percent of the unit. Aquents, which have a lighter
<br />£tlter the leachate. Sewage lagoons require sealing. make up about 35 percent. About 5
<br />ow well. Capability subclass pe° ent is Aqueptseand Bankard sandy loam.
<br />Lawns, shrubs, and trees gr Tfiese are deep, poorly drained soils that formed in
<br />Its irrigated. edon is typical. Commonly the
<br />2-Altvan Loam, 1 to 3 percent slopes. This is a deep,
<br />well drained soil on terraces at elevations of 4,500 to 4,900 recent alluvium. o one p
<br />the major soils have a mottled, inilsu~,aCea layero ddunderlying
<br />feet. It formed in old alluvium deposited by or clayey ave]
<br />in are small areas of soils that kaline loamy sand or sand and gr
<br />rivers. Included in mapp g have a gleyed layer in the
<br />show evidence of poor drainage. Als avel depositse small, w thin 48incheseIn places they
<br />long and narrow areas of sand and gr a ish under] in material. The water
<br />Typically the surface layer of this Altvan soil is gr Y Y g Lin and recedes
<br />brown loam about 10 inches thick. The subsoil is brown Most of the acreage is subject to flooding.
<br />loam table is at or near the surface early in sp g
<br />and light yellowish brown clay loam and sandy clay
<br />about 14 inches thick. The substratum is calcareous loamy to as deep as 48 inches late in fall in some yea -
<br />These soils are used for rangeland and wildlife habitat.
<br />sand about 5 inches thick over gravelly sand.
<br />permeability and available water capacity are Some smallgareas have been reclaimed by major ramage
<br />and ]evelin and are used for irrigated crops. alkali
<br />moderate. The effective rooting depth is 20 to 40 inches. Thep g ss. Saltgrass,
<br />Surface runoff is medium, and the a olio ~hgat d crops. It sacaton, sw tchgrass,~ and N'e ternswarea ~°e PTO inent.
<br />This soil is used almost entirely sedge, r acre in
<br />is suited to all crops commonly grown in the area, includ- rush, and alkali bluegra
<br />beans, alfalfa, small grain, potatoes, potential production ranges from 3,000 pounds Pe ears. As
<br />ing corn, sugar beets, in s stem is 3 ounds in unfavorable Y alkali
<br />and onions. An example of a svitabl co~PPorn for silage, range bcond ti°n~de0teriorates, the switchgrass,
<br />to 4 years of alfalfa foll°wed by sacaton, and western wheatgras decrease and saltgrass,
<br />sugar beets, small grain, or beans. Land leveling, ditch and rush increase.
<br />lining, and installing pipelines may be needed for proper sedge,
<br />bcation. Management half of~h °to~~ dual proa utiontSeed-
<br />water app • anon are suitable, but furrow ir- half and leaving
<br />All methods of irrig ing is difficult and costly because numerous tillage prac-
<br />rigation is the most common. Barnyard manure and coin- s alkali sacaton, tall
<br />mercial fertilizer are needed for top yields. tices are required to eliminate the saltgrass so .
<br />]antins of trees and ass, western wheatgras , They
<br />Windbreaks and enviropmental p well wheatgras, and tall fescue are suitable for seeding.
<br />shrubs commonly grown in the area are generally eting £u-m seedbed. Seedbed
<br />can be seeded into a clean, ear to
<br />suited to this soil. Cultivation to control °O ears as preparation usually requires more than 1 y
<br />vegetation should be continued for as many Y eliminate the saltgrass sod. A grass drill should be used.
<br />possible following Planting. Trees that are best suited and has proven most successful.
<br />Mountain juniper, eastern Seeding early in spring
<br />Wetland wildlife, especially waterfowl, utilize this amt.
<br />have good survival are Rocky and protective cover,
<br />redcedar, ponderosa pine, Siberian elm, Russian-olive, and The wetland plants provide nesting ated cropland,
<br />hackberry. The shrubs best suited are skunkbush sumac, as well as some food. The nearby ling
<br />lilac, Siberian peashrub, and American plum. rotec-
<br />where wildlife obtain much of their food and find p
<br />This soil can produce habitat elements that are highly
<br />suitable for openland wildlife including pheasant, cotton- five cover, makes this unit valuable to both wetland and
<br />tail, and mourning dove. Such crops as wheat, corn, and openland wildlife. heasant, use this unit for
<br />eland wildlife, Dpenland wildlife, especially p
<br />alfalfa provide suitable habitat for ope lantings and Deer find excellent cover in some
<br />especially pheasant. Tree and shrub p cover and nesting.
<br />undisturbed nesting cover would enhance openland wil- areas.
<br />dlife populations. otential for. urban These valuable wil dhf IICTC~ oachment andtoveruse by
<br />This Altvan soil has fair to good p fire and fenced to p
<br />oten- livestock. They shouldPo en ill aa•a source of sand and
<br />and recreational development. The chief limiting soil fea- These soils have g
<br />tares for urban development are the shrink-swell P rave]. Capability subclass VIw; Salt Meadow range site.
<br />tia] of the subsoil as it wets and dries and the rapid 4-Aquolls and Aquepts, flooded. This nearly level
<br />permeability of the sand and gravel substratum. Septic g loins and along the
<br />but in places the map unit is in depressions in smooth p
<br />tank absorption Fields function properllY~neS to properly
<br />substratum does not contaie ~ goons require sealing bottoms of natural drainageways throughout the survey
<br />filter the leachate. Sewag subclass area. Aquolls, which have a dark colored surface wahich
<br />Lawns, shrubs, and trees grow well. Capability make up about 55 percent of the unit. Aquepts,
<br />ravelly substratum. This have a lighter colored surface layer, make up about 25
<br />Ile irrigated. I.cent is soils that aze well drained
<br />3-Aquolls and Aquents, g loins percent. About 20 pe
<br />nearly level map unit is on bottom lands and flood p
<br />of all have aadark colored surface layery make up about the surface.at have sandstone or shale within 48 inches o
<br />wh ch
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