HomeMy WebLinkAbout951772.tiff SOIL SURVEY
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urface layer, make up about 35 percent. About 5
filter the leachate. Sewage lagoons require sealing. 60 percent of the unit. Aquents, which have a lighter
Lawns, shrubs, and trees grow well. Capability subclass colored percent Aquepts and Bankard sandy loam.
Its irrigated. poorly drained soils that formed in
2—Altvan loam, 1 to 3 percent slopes. This is a deep, These are deep, pedon is typical. Commonly the
well drained soil i on ldra at elevations of by the to major,900 oils have a alluvium. No one a layer underlying
feet.v It formed in old alluviume deposited
area of soils that kaline loamy or mottled, mildlytclayesu cealkaline to moand underlying
al-
ng
l
show Included in drainage.
mapping
show evidence of poor d Also included are small, material and are underlain by sand or sand and grave
long and narrow areas of sand and gravel deposits. within 48 inches. In places they have a gleyed layer in the
Typically the surface layer of this Altvan soil is grayish underlying material.
brown loam about 10 inches thick. The subsoil is brown Most of the acreage is subject to flooding. The water t r
and light yellowish brown clay loam and sandy clay loam table is at or near the surface early in spring and recedes
about 14 inches thick. The substratum is calcareous loamy to as deep as 48 inches late in fall in some years.
sand about 5 inches thick over gravelly sand. These soils are used for rangeland and wildlife habitat.
Permeability and available water capacity are and leveling are have
been irrigated claimed by e major drainage ,
moderate. The effective rooting depth is 20 to 40 inches. The potential and al native u vegetation d forirrigated
is dominated by alkali
Surface runoff is d and the erosion hazard is sacaton, switchgrass, and western wheatgrass. Saltgrass,
This t soil is used scommonly almost
entirelyl for irrigated ,crops.includ-
It
is suited to all crops commonly grown in the area, i sedge, rush, and alkali bluegrass are also prominent.
ing corn, sugar beets, beans, alfalfa, small grain, potatoes, Potential production ranges from 3,000 pounds per acre in
and onions. An example of a suitable cropping system is 3 favorable years to 2,000 pounds in unfavorable years. As As
,
to 4 years of alfalfa followed by corn, corn for silage, range condition deteriorates, the switchgrass
sugar beets, small grain, or beans. Land leveling, ditch sacaton, and western wheatgrass decrease and saltgrass,
lining, and installing pipelines may be needed for proper sedge, and rush increase. on takMg
water application. Management of vegetation should be based o ed-
All methods of irrigation are suitable, but furrow ir- half and leaving half of the total annual production.
rac-
ligation is the most common. Barnyard manure and com-
ing is difficult and costly because numerous tillage p
mercial fertilizer are needed for top yields. tices are required to eliminate the saltgrass sod.
Windbreaks and environmental plantins of trees and Switchgrass, western wheatgrass, alkali sacaton, tall
shrubs commonly grown in the area are are generally well wheatgrass, and tall fescue are suitable for seeding. They
can be seeded into a clean, firm seedbed. Seedbed
suited to this soil. Cultivation to control competing preparation usually requires more than 1 year to
vegetation should be continued for as many years as
possible following planting. Trees that are best suited and eliminate the saltgrass sod. A grass drill should be used.
have good survival are Rocky Mountain juniper, eastern Seeding early in spring has proven most successful.
redcedar, ponderosa pine, Siberian elm, Russian-olive, and
Wetland wildlife, especially waterfowl, utilize this unit.
hlac, Siberian The shrubs best suited are skunkbush sumac, The wetland plants provide nesting and protective cover,
lilac, c peashrub, and American plum.
as well as some food. The nearby irrigated cropland,
This soil can produce habitat elements that are highly where wildlife obtain much of their food and find protec-
1, n for mourning
e. Such c including cops pheasant,c, cotton- tive cover, makes this unit valuable to both wetland and
tail, and mourning dove. crops as wheat, corn, and openland wildlife.
Opend wildlife, especially pheasant, use this unit for
alfalfa especially pheasant.he suitable Tree d for openland wildlife, landundisturbed esi and shrub plantings and cover and nesting. Deer find excellent cover in some
nesting cover would enhance openland wil- areas.
dlife populations. These valuable wildlife areas should be protected from
This real Altvon soil elo mil to he chief limiting itl for urban fire and fenced to prevent encroachment and overuse by
and recreational development. The the soil fen- livestock. They should not be drained.
ial fore urban development sitwets are dries
and
sthrink-swell prapiden- These soils have good potential as a source of sand and tpee of the subsoil fthe as it and sus and me rapid ravel. Capability subclass VIw; Salt Meadow range site.
tank
absorption of sand and gravel y bstrin Septic placesthe g 4—Aquolls and Aquepts, flooded. This nearly level
u fields function properly, but in pp map unit is in depressions in smooth plains and along the
substratum does not Sewage e enough fines requireto properly bottoms of natural drainageways throughout the survey filt Lawns,hr the leachate., andsgrow wll. Capability wallas. area. Aquolls, which have a dark colored surface layer,
yer,
atshedbs, and trees well. subclass make up about 55 percent of the unit. Aquepts,
Ile irrigated.
3—Aquolls and Aquents, gravelly substratum. This have a lighter colored surface layer, make up about 25
nearly level map unit is on bottom lands and flood plains percent. About 20 percent is soils that are well drained
of all the major streams in the survey area. A abort, and and soilssurf that have sandstone or shale within 48 inches of
which have a dark colored surface layer, make up
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