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From Todd Hodges Design +" 1-970-304-6498 at X28/01 3.53 PM Pg 003/004
r` 44 - SOIL Bt3RVEY
to allow moisture accumulation. Generally,.precipitation is Permeability is•rapid. Available water capacity is low.
too low to make beneficial use of fertilizepf'; - The effective rooting depth is 60 inches or more: Surface
Stubble Mulch farming, striperopping, and minimum til- runoff is medium,..and the erosion hazard is moderate.
lage are needed to control soil blowing and water erosion. The potential native vegetation is dominated by little
Terracing also may be needed to control water erosion. '° bluestem, sideosts grams, sand reedgrass, blue grams,
The potential native vegetation is dominated by hairy grams, switehgras§, and.needleandthread. Potential
western wheatgrass and bide grains. Ruff'alograss is also - production ranges from 700 pounds per acre in favorable
present. Potential production ranges from 1,000 pounds years to-200 pounds in unfavorable years. As range condi-
per acre in favorable years to 600 pounds in unfavorable tion'deteriorates, the tali and mid grasses decrease, blue
years. As range condition deteriorates, a blue grams-buf- grama and hairy grams increase, and forage production
falograss sod forms. Undesirable weeds and annuals in= drops. - —
vade the site as range condition becomes poorer. Management of vegetation should be based on taking
Management of vegetation on this soil should be based half or less of the total annual production. Deferred graz-
on taking half and leaving half of the total annual produc- ing is prettiest in improving range condition. Seeding and
tion. Range pitting can reduce runoff Seeding is desirable mechanical treatment are impractical
if the range is in poor condition. Western wheatgrass, Windbreaks and environmental plantings generally are
blue grains, sideoats grams, buffalograss, pubescent not suited to these soils. Onsite investigation is needed to
wheatgrass,and crested-wheatgrass are suitable for seed- determine if plantings are feasible.
hunted ing. The grass selected should meet the seasonal require- Wildlife populations are. because the necessary
manta of livestock. It can'be aee[ed into a clean, fn7n habitat elements are lacking. Because most of the acreage
sorghum stubble, or it can be drilled into a firm prepared is rangeland,- only rangeland wildlife, for example scaled
seedbed. Seeding early in spring has proven most success-
ful managing livestock grazing in order to provide suitable
Windbreaks and environmental'plantings of trees and habitat on these soils.
shrubs commonly grown in the area are generally well Potential is poor for urban and recreational develop-
suited to this soil, Cultivation to control coMpeting most.'The chief limiting soio features are the loose, coarse
vegetation should be continued for as many years. as textured soil, steep slopes, and rapid permeability. Caps-
e possible following planting:Trees that are best suited.and bthty subclass Vile Ungifted, VIIs nonirrigated; Gravel
have good survival are Rocky Mountain juniper, {maters
Breaka range site.
redcedar,ponderosa pine, Siberian elm, Ruasfan-Alive,and ce'Valent sand, 0 to 3 percent slopes. This is a deep,
Irli hackberry. The shrubs.beat suited are skunkbu$h sumac excessfe')3 drained soil in
plains at elevations of 4,650 to
i lilac,Siberian 5,100- feet. It formed kr"eolian deposits. Included in
peashrub,and Americas[°uM.
mapping flare small areas of soils thathave lime within a
I Wildlife is an important eecondary uee of this sot The' depth of a0 inches. .. {
cropland areas provide favorable habitat for crag-necked
Typi/arlly the 'surface layer is brown- sand about 8
,r pheasant and mourning dove. Many n*ngntne Species can -inches thick. The underlying
loth'' be attracted by establishing areas for nesting and escape to- a depth of 80
inches •is krown-sand.
i cover. For pheasants, undisturbed nesting cover is eases Permeability is rapid. Available water capacity is
,Ill,.. tie] and should be included in plans for habitat develop- moderate The effective rooting depth is 60 inches or
ment, especially in areas of intensive agriculture Range: more. Surface runoff is slow, and the erosion hazard is
: land wildlife, for example, the pronghorn antelope, can be low;
attracted by. developing- livestock watering facilities,
I' This. .soil is suited to limited cropping. Intensive
managing livestock grazing,and reseeding where needed. cropping is hazardous because of erosion. The cropping
I'I
This soil has poor potential for urban and recreational- system should be limited to such close grown crops as al-
development. Slow permeability and high shrink swell falfa, wheat, and barley. The soil also is suited to ir-
cause problems in dwelling and road. construction. Caps- rigated :'pasture: A suitable cropping system is 3 to 4
bility subclass Tile irrigated, IVe nonirrigated; Clayey years of:alfalfa followed by 2years of corn and small
Plains range site: grain and alfalfa seeded with a nurse crop.
68—Ustie Torriorthents, moderately'steep. These are Closely spaced contour'ditches or sprinkers can be used
deep, excessively drained soils on terrace breaks and in irrigating close grown crops. Contour furrows or sprin-
escarpments at elevations of 4,450 to 5,100- feet. They klere should be used for new crops. Applications of bar-
formed in gravelly alluvium andhave slopes of 9 to 25 nyanl ,manure--and commercial fertilizer help to maintain
percent.Included in mapping are small areas of soils that:, good-production.
have pockets of sandy loam and loam in the underlying ' Thee:'-.potentials vegetation is dominated by sand
material. - bluestem, 'sand. reedgrass, switchgrass, sideoats-grama,
li Typically the surface layer is pale browngravelly.sand needleandthread,little-bluestem, and blue grains. Paten-
about 10 inches thick The underlying material to a depth tial, production ranges from 2,500 pounds per acre in
I! of 60 inches is pale brown gravelly`sand. favorable years to 1,800
P -. pounds inunfavorable years. As
From Todd Hodges Design r 1-970-304-6498 at 3"428/01 3:53 PM Pg 004/004
•
WELD COUPitY, COLORADO, SOUTHERN PART 45
• ge condition deteriorates, the sand bluestem, The potential vegetation is dominated by sand
.:'tchgrass, sand reedgrass, sideoats grams, andlittle bluestem, sand reedgrass, switchgrass,• sideoats grams,
,luestem decrease, forage production drops; and sand needleandthread, little bluestem, and blue grams. Paten-
. increases. Undesirable weeds and annuals invade tial production ranges from 2,500 pounds per acre in
d "blowout" conditions can occur as range condition favorable years to 1,800 pounds in unfavorable years- As
].•comes poorer. - - range condition deteriorates, the sand bluestem,
Management of vegetation on this soil should be based switchgrass, sand reedgrass, sideoats grama, and little
+n taking half and leaving half of the total annual produc- bluestem decrease, forage production drops, and sand
+on. Seeding is desirable if the range is in poor condition. sage increases. Undesirable weeds and annuals invade
-and bluestem, sand reedgrass, indiangrass, switchgrass, and "blowout" conditions can occur as range condition
adeoats grama, little bluestem, and blue grama are suite- becomes poorer.
e for seeding. Because this soil is susceptible to soil Management of vegetation on this soil should be based
..lowing, it should be seeded using an interseeder, or the on taking half and leaving half of the total annual produe-
t-ed should be drilled into a firm, clean-sorghum stubble. tion. Seeding is desirable if the range is in poor condition.
-eding early in spring has proven most successful. Brush Sand bluestem, sand reedgrass, indiangrass, switchgrass,
agement also can help in improving deteriorated side-oats grams,little bluestem,and blue grams are suite-
ge. ble for seeding. Because this soil is susceptible to soil
Windbreaks and environmental plantings are fairly well blowing, it should be seeded using an interseeder or the
=suited to this soil. Blowing sand and the moderate avails- seed should be drilled into a firm, clean sorghum stubble.
.le water capacity are the principal hazards in establish- Seeding early In spring has proven most successful. Brush
g trees and shrubs. The soil is so loose that trees should management can also help in improving, deteriorated
'be planted in shallow furrows, maintaining vegetation range.
between the rows. Supplemental irrigation is needed to Windbreaks and environmental plantings are generally
'nsure survival. Trees that are beat suited and have good not suited to this soil Onsite investigation is needed to
survival are Rocky Mountain juniper, eastern redcedar, determine if plantings are feasible. •
ponderosa pine, and Siberian elm. The shrubs best suited Wildlife is an important secondary, use of this soil. Ran-
are skunkbu
sh sumac, lilac,and Siberian peashrub. geland wildlife, for example,,the pronghorn antelope, can
Wildlife is an important secondary use of this soil. The be attracted by developing;.livestock watering facilities,
rand areas provide favorable habitat for ring-necked managing livestock grazing,and reseeding where needed.
sant and mourning dove. Many iongame species can This soil has fair potential for urban development. The
.e attracted by establishing areas for nesting and escape chief limiting soil features are the rapid permeability and
cover. For pheasants, undisturbed nesting cover is essen- the susceptibility to soil blowing. Septic tank absorption
tial and should be included in plans for habitat develop- fields function properly, but in places the sandy sub-
ment, especially in areas of intensive agriculture. Range- stratum does not properly filter the leachate. Sewage
land wildlife,for example, the pronghorn antelope, can be lagoons must be sealed. Once established, lawns, shrubs,
'attracted by developing livestock watering facilities, and trees grow well. Capability subclass VIe irrigated,
:paging livestock grazing,and reseeding where needed. VIe nonirrigated; Deep Sand range site. jl
This soil has fair potential for urban development. The 71—Valent-Loup complex, 0 to 9 percent slopes. This 111
primary limiting soil features are the rapid permeability `level to moderately sloping map unit occupies hills,ridges,
and the susceptibility to soil blowing. Septic tank absorp- and depression or pothole-like areas in the sandhills at
tion fields function properly, but in places the sandy sub- elevations of 4,670 to 4,700 feet. The Valent soil makes up
stratum does not properly filter the leachate. Sewage about 60 percent of the unit, the Loup soil about 35 per-
lagoons must be sealed. Once established, the lawns, cent. About 5 percent is dune sand. The Valent soil occu-
shrubs, and trees grow well. Capability subclass IVe ir- pies the hills and ridges and the Loup soil the depressions
rigated, VIe nonirrigated; Deep Sand range site. or potholes
70—Valent sand, 3 to 9 percent slopes. This is a deep, The Valent soil is deep and excessively drained. It
!excessively drained soil on plains at elevations of 4,660 to formed in eolian deposits. Typically the surface layer is
5,100 feet. It formed in eolian deposits. Included in brown sand about 8 inches thick. The underlying material
mapping are small areas of soils that have lime within a to a depth of 60 inches is brown sand.
depth of 40 inches. Also included are small areas of soils Permeability is rapid. Available water capacity is
that have sandstone between 40 and 60 inches. moderate. The effective rooting depth is 60 inches or
Typically the surface layer of the Valent soil is brown more. Surface runoff is slow, and the erosion hazard is
sand about 6 inches thick. The underlying material to a low.
depth of 60 inches is brown sand. The Loup soil is deep and poorly drained. It formed in
Permeability is rapid. Available water capacity is sandy alluvium. Typically the surface layer is very dark
moderate. The effective rooting depth fa 60 inches or grayish brown, mottled loamy sand about 16 inches thick.
more. Surface runoff is slow, and the erosion hazard is The underlying material to a depth of 60 inches is light
low. brownish gray, mottled loamy sand and sandy loam.
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