HomeMy WebLinkAbout951847.tiff WELD COUNTY, COLORADO, SOUTHERN PART
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can be drilled into a firm prepared seedbed. Plowing and Permeabilty is rapid. Available water capacity is
drilling on the contour minimize runoff and soil losses. moderate. The water table is usually about 24 to 36 inches
Seeding early in spring has proven most successful. below Windbreaks and environmental plantings are generally hazard is
Surface runoff is slow, and the erosion
well suited to this soil. Cultivation to control competing This unit is used as rangeland and irrigated cropland.
vegetation should be continued for as many years as Cropping in irrigated areas is limited to the crops
possible following planting. Trees that are best suited and tolerant of water and salts. Light, frequent irrigations by
have good survival are Rocky Mountain juniper, eastern furrows and flooding reduce the salts accumulation.
redcedar, ponderosa pine, Siberian elm, Russian-olive, and Pasture is the best use. Tall wheatgrass, tall fescue, and
hackberry. The shrubs best suited are skunkbush sumac, annual sweetclover are some of the best suited crops.
lilac, Siberian peashrub, and American plum. Commercial fertilizers improve the amount and value of
Wildlife is an important secondary use of this soil. The forage produced.
cropland areas provide favorable habitat for ring-necked The potential native vegetation on this unit is
pheasant y game be attracted dby establishinging eareas nfor nest nesting and les can escape and dominated
western s he t�s, little bluestem, sand reedgrass,
s,
cover. For pheasants, undisturbed nesting cover is essen- prairie cordgrass, slenderswheatgrass, al sand bon, sam,
salt-
tial and should be included in plans for habitat develop- ge, angrass, alkali Potential
produc-
ment, especially in areas of intensive agriculture. Range- tion ranges from 4,000 pounds per acrerush are also in favorable years
land wildlife, for example, the pronghorn antelope, can be to 3,000 pounds in unfavorable years. As range condition
attracted by developing livestock watering facilities, deteriorates, the switchgrss, sand bluestem, indiangrass,
managing livestock grazing, and reseeding where needed. little bluestem, and prairie cordgrass decrease and salt-
This soil has good potential for urban and recreational grass, blue grama, sand dropseed, sedge, and rush in-
development. Increased population growth in the survey crease. Undesirable weeds and annuals invade the site as
area has resulted in increased homesite construction. The range condition becomes poorer.
chief limiting soil feature for urban development and road Management of vegetation on this unit should be based
construction is the limited capacity of this soil to support on taking half and leaving half of the total annual produc-
a load. Septic tank absorption fields function properly, but tion. Seeding is desirable if the range is in poor condition.
community sewage systems should be provided if the Switchgrss, sand bluestem, sand reedgrass, western
pf the population density increases.
Because
es of
the
etp permeability
sealed. mediate wheadiangrass, pubescent wheatgrass, and nter-
Lawns, shrubs, and trees grass are suitable for seeding. The plants
grow well. Capability subclass selected should meet the seasonal requirements of
IVe irrigated, VIe nonirrigated; Loamy Plains range site. livestock They can be seeded into a clean, firm sorghum
35—Loup-Boel loamy sands, 0 to 3 percent slopes. stubble, or they can be drilled into a firm prepared
This level to nearly level map unit is on stream bottoms seedbed. Seeding early in spring has proven most success-
and in drainageways of the sandhills at elevations of 4,550 ful. Capability subclass IVw irrigated, VIw nonirriated;
to 4,750 feet. The Loup soil occupies the lower or depres- Sandy Meadow range site.
sional areas, which receive additional runoff. It makes up 36—Midway-Shingle complex, 5 to 20 percent slopes.
about 55 percent of the unit. The Boel soil occupies the This moderately sloping to strongly sloping map unit is on
slightly higher elevations. It makes up about 35 percent upland hills and ridges at elevations of 5,050 to 5,250 feet.
of the unit. About 10 percent of the unit is Osgood sand The Midway soil makes up about 50 percent of the unit,
and Valent sand.
a d the e about 35 is
The Loup soil is deep and poorly drained. It formed in Renohill clay Tassel £mensa sandy loam. Thet. About 15e Mid-
sandy alluvium. Typically the surface layer is very dark way soil differs from the Shingle soil in having more than
grayish brown, mottled loamy sand about 16 inches thick. 35 percent clay in the underlying material.
The upper 24 inches of the underlying material is light The Midway soil is shallow and well drained. It formed
brownish gray, mottled loamy sand. The lower part to a in residuum from calcareous shale. Typically the surface
depth of 60 inches is light brownish gay, mottled sandy layer is light olive brown clay about 7 inches thick. The
loam.
underlying material is light brownish gray clay about 6
Permeability is rapid. Available water capacity is inches thick. Depth to calcareous clayey shale is about 13
moderate. The water table is at or near the surface in inches.
spring and about 36 inches below the surface in the fall. Permeability is slow. Available water caF.city is low.
Surface runoff is slow, and the erosion hazard is low. The effective rooting depth is 10 to 20 inches. Surface ru-
The Boel soil is deep and somewhat poorly drained. It noff is rapid, and the erosion hazard is moderate to high.
formed in stratified sandy alluvium. Typically the surface The Shingle soil also is shallow and well drained and
layer is grayish brown loamy sand about 14 inches thick. formed in residuum from calcareous shale. Typically the
The underlying material to a depth of 60 inches is pale surface layer is grayish brown loam about 6 inches thick
brown and very pale brown, stratified, mottled loamy The underlying material is light yellowish brown clay
sand.
loam about 12 inches thick Depth to calcareous clayey
951847
32 SOIL SURVEY
are Rocky Mountain juniper, eastern redcedar, ponderosa ble years to 1,800 pounds in unfavorable years. As range
pine, Siberian elm, Russian-olive, and hackberry. The condition deteriorates, the sand bluestem, sand reedgrass,
shrubs best suited are skunkbush sumac, lilac, and Siberi- and switchgrass decrease and blue grama, sand dropseed,
an peashrub. and sand sage increase. Annual weeds and grasses invade
Wildlife is an important secondary use of this soil. The the site as range condition becomes poorer.
cropland areas provide favorable habitat for ring-necked Management of vegetation on this soil should be based
pheasant and mourning dove. Many nongame species can on taking half and leaving half of the total annual produc-
be attracted by establishing areas for nesting and escape tion. Seeding is desirable if the range is in poor condition.
cover. For pheasants, undisturbed nesting cover is essen- Sand bluestem, sand reedgrass, switchgrass, sideoats
tial and should be included in plans for habitat develop- grama, blue grama, and pubescent wheatgrass are suita-
ment, especially in areas of intensive agriculture. ble for seeding. The grass selected should meet` the
Rapid expansion of Greeley and the surrounding area seasonal requirements of livestock. It can be seeded into
has resulted in urbanization of much of this Olney soil. a clean, firm sorghum stubble, or it can be drilled into a
This soil has good potential for urban and recreational firm prepared seedbed. Seeding early in spring has
development. The only limiting feature is the moderately proven most successful.
rapid permeability in the substratum, which causes a Windbreaks and environmental plantings are generally
hazard of ground water contamination from sewage suited to this soil. Soil blowing, the principal hazard in
lagoons. Lawns, shrubs, and trees grow well. Capability establishing trees and shrubs, can be controlled by cul-
class I irrigated. tivating only in the tree row and by leaving a strip of
47—Olney fine sandy loam, I to 3 percent slopes. vegetation between the rows. Supplemental irrigation
This is a deep, well drained soil on plains at elevations of may be needed at the time of planting and during dry
4,600 to 5,200 feet.. It formed in mixed outwash deposits. periods. Trees that are best suited and have good survival
Included in mapping are small areas of soils that have a are Rocky Mountain juniper, eastern redcedar, ponderosa
dark surface layer. Some small leveled areas are also in- pine, Siberian elm, Russian-olive, and hackberry. The
eluded. shrubs best suited are skunkbush sumac, lilac, and Siberi-
Typically the surface layer of this Olney soil is grayish an peashrub.
brown fine sandy loam about 10 inches thick. The subsoil Wildlife is an important secondary use of this soil. The
is yellowish brown and very pale brown sandy clay loam cropland areas provide favorable habitat for ring-necked
about 14 inches thick. The substratum to a depth of 60 pheasant and mourning dove. Many nongame species can
inches is very pale brown, calcareous fine sandy loam. be attracted by establishing areas for nesting and escape
Permeability and available water capacity are cover. For pheasants, undisturbed nesting cover is essen-
moderate. The effective rooting depth is 60 inches or tial and should be included in plans for habitat develop-
more. Surface runoff is medium, and the erosion hazard is ment, especially in areas of intensive agriculture. Range-
low. land wildlife, for example, the pronghorn antelope, can be
In irrigated areas this soil is suited to all crops con- attracted by developing livestock watering facilities.
monly grown in the area, including corn, sugar beets, managing livestock grazing, and reseeding where needed.
beans, alfalfa, small grain, potatoes, and onions. An exam- Rapid expansion of Greeley and the surrounding are
pie of a suitable cropping system is 3 to 4 years of alfalfa has resulted in urbanization of much of the Olney soil
followed by corn, corn for silage, sugar beets, small grain, This soil has good potential for urban and recreationa
or beans. Land leveling, ditch lining, and installing development. The only limiting feature is the moderateb
pipelines may be needed for proper water application. All rapid permeability in the substratum, which causes
methods of irrigation are suitable, but furrow irrigation is hazard of ground water contamination from sewagt
the most common. Barnyard manure and commercial fer- lagoons. Lawns, shrubs, and trees grow well. Capabilit7
tilizer are needed for top yields. subclass IIe irrigated, IVe nonirrigated; Sandy Plain:
In nonirrigated areas this soil is suited to winter wheat, range site.
barley, and sorghum. Most of the acreage is planted to 48—Olney fine sandy loam, 3 to 5 percent slopes
winter wheat. The predicted average yield is 28 bushels This is a deep, well drained soil on plains at elevations o
per acre. The soil is summer fallowed in alternate years 4,600 to 5,200 feet. It formed in mixed outwash deposit:
to allow moisture accumulation. Generally precipitation is Included in mapping are small areas of soils that have
too low for beneficial use of fertilizer. dark surface layer and small areas of soils that hay.
Stubble mulch farming, striperopping, and minimum til- sandstone and shale within a depth of 60 inches.
lage are needed to control soil blowing and water erosion. Typically the surface layer of this Olney soil is grayis
Terracing also may be needed to control water erosion. brown fine sandy clay loam about 8 inches thick. The sut
The potential native vegetation on this range site is soil is yellowish brown and very pale brown fine sand.
dominated by sand bluestem, sand reedgrass, and blue loam about 12 inches thick. The substratum to a depth
grama. Needleandthread, switchgrass, sideoats grama, 60 inches is very pale brown, calcareous fine sandy loam.
and western wheatgrass are also prominent. Potential Permeability and available water capacity ar
production ranges from 2,200 pounds per acre in favora- moderate. The effective rooting depth is 60. inches
95184'7
WELD COUNTY, COLORADO, SOUTHERN PART 35
and switchgrass decrease and blue grama, sand dropseed, should be grown at least 50 percent of the time. Contour
and sand sage increase. Annual weeds and grasses invade ditches and corrugations can be used in irrigating close
the site as range condition becomes poorer. grown crops and pasture. Furrows, contour furrows, and
Management of vegetation on this soil should be based cross slope furrows are suitable for row crops. Sprinkler
on taking half and leaving half of the total annual produc- irrigation is also desirable. Keeping tillage to a minimum
tion. Seeding is desirable if the range is in poor condition. and utilizing crop residue help to control erosion. Main-
Sand bluestem, sand reedgrass, switchgrass, sideoats taming fertility is important. Crops respond to applica-
grama, blue grama, pubescent wheatgrass, and crested tions of phosphorus and nitrogen.
wheatgrass are suitable for seeding. The grass selected The potential native vegetation on this site is
should meet the seasonal requirements of livestock. It can dominated by sand bluestem, sand reedgrass, and blue
be seeded into a clean, firm stubble, or it can be drilled grama. Needleandthread, switchgrass, sideoats grama,
into a firm prepared seedbed. Seeding early in spring has and western wheatgrass are also prominent. Potential
proven most successful. production ranges from 2,200 pounds per acre in favora-
Windbreaks and environmental plantings are generally ble years to 1,800 pounds in unfavorable years. As range
suited to this soil. Soil blowing, the principal hazard in condition deteriorates, the sand bluestem, sand reedgrass,
establishing trees and shrubs, can be controlled by cul- and switchgrass decrease, and blue grama, sand dropseed,
tivating only in the tree row and by leaving a strip of and sand sage increase. Annual weeds and grasses invade
vegetation between the rows. Supplemental irrigation the site as range condition becomes poorer.
may be needed at the time of planting and during dry Management of vegetation on this soil should be based
periods. Trees that are best suited and have good survival on taking half and leaving half of the total annual produc-
are Rocky Mountain juniper, eastern redcedar, ponderosa tion. Seeding is desirable if the range is in poor condition.
pine, Siberian elm, Russian-olive, and hackberry. The Sand bluestem, sand reedgrass, switchgrass, sideoats
shrubs best suited are skunkbush sumac, lilac, and Siberi- grama, blue grama, pubescent wheatgrass, and crested
an peashrub. wheatgrass are suitable for seeding. The grass selected
Wildlife is an important secondary use of this soil. should meet the seasonal requirements of livestock. It can
Ring-necked pheasant, mourning dove, and many non- be seeded into a clean, firm sorghum stubble, or it can be
game species can be attracted by establishing areas for drilled into a firm prepared seedbed. Seeding early in
nesting and escape cover. For pheasants, undisturbed spring has proven most successful
nesting cover is essential and should be included in plans Windbreaks and environmental plantings are generally
for habitat development, especially in areas of intensive suited to this soil. Soil blowing, the principal hazard in
agriculture. establishing trees and shrubs, can be controlled by cul-
Rapid expansion of Greeley and the surrounding area tivating only in the tree row and by leaving a strip of
has resulted in urbanization of much of this Otero soil. vegetation between the rows. Supplemental irrigation
This soil has excellent potential for urban and recrea- may be needed at the time of planting and during dry
tional development. The only limiting feature is the periods. Trees that are best suited and have good survival
moderately rapid permeability in the substratum, which are Rocky Mountain juniper, eastern redcedar, ponderosa
causes a hazard of ground water contamination from pine, Siberian elm, Russian-olive, and hackberry. The
sewage lagoons. Lawns, shrubs, and trees grow well. shrubs best suited are skunkbush sumac, lilac, and Siberi-
Capability subclass IIIe irrigated, IVe nonirrigated; an peashrub.
Sandy Plains range site. Wildlife is an important secondary use of this soil.
52—Otero sandy loam, 3 to 5 percent slopes. This is a Ring-necked pheasant, mourning dove, and many non-
deep, well drained soil on plains at elevations of 4,700 to game species can be attracted by establishing areas for
5,250 feet. It formed in mixed outwash and eolian nesting and escape cover. For pheasants, undisturbed
deposits. Included in mapping are small areas of soils that nesting cover is essential and should be included in plans
have loam and clay loam underlying material. Also in- for habitat development, especially in areas of intensive
eluded are small areas of soils that have sandstone and agriculture.
shale within a depth of 60 inches. Rapid expansion of Greeley and the surrounding area
Typically the surface layer of this Otero soil is brown has resulted in urbanization of much of this Otero soil.
sandy loam about 10 inches thick. The underlying material The soil has excellent potential for urban and recreational
to a depth of 60 inches is pale brown calcareous fine development. The only limiting feature is the moderately
sandy loam. rapid permeability in the substratum, which causes a
Permeability is rapid. Available water capacity is hazard of ground water contamination from sewage
moderate. The effective rooting depth is 60 inches or lagoons. Lawns, shrubs, and trees grow well. Capability
more. Surface runoff is medium, and the erosion ha?nrd is subclass IIIe irrigated, VIe nonirrigated; Sandy Plains
low. range site.
This soil is used almost entirely for irrigated crops. It 53—Otero sandy loam, 5 to 9 percent slopes. This is a
is suited to the crops commonly grown in the area. deep, well drained soil on plains at elevations of 4,700 to
Perennial grasses and alfalfa or close growing crops 5,250 feet. It formed in mixed outwash and eolian
•
951847 •
WELD COUNTY, COLORADO, SOUTHERN PART
47
be attracted by establishing areas for nesting and escape wheatgrass are suitable for seeding. The grass selected
cover. For pheasants, undisturbed nesting cover is essen- should meet the seasonal requirements of livestock. It can
tial and should be included in plans for habitat develop- be seeded into a dean, firm sorghum stubble, or it can be
ment, especially in areas of intensive agriculture. Range- drilled into a firm prepared seedbed. Seeding early in
land wildlife, for example, the pronghorn antelope, can be spring has proven most successful.
attracted by developing livestock watering facilities, Windbreaks and environmental plantings are fairly well
managing livestock grazing, and reseeding where needed. suited to this soil. Blowing sand and low available water
This soil has good potential for urban and recreational capacity are the principal hazards in establishing trees
development. Once established, the lawns, shrubs, and and shrubs. The soil is so loose that trees should be
trees grow well. The chief limiting soil feature is the planted in shallow furrows and vegetation maintained
rapid permeability in the substratum, which causes a between the rows. Supplemental irrigation may be needed
hazard of ground water contamination from sewage to insure survival. Trees that are best suited and have
lagoons. In places recreational development is limited by good survival are Rocky Mountain juniper, western
the susceptibility to soil blowing. Capability subclass IIIe redcedar, ponderosa pine, and Siberian elm. The shrubs
irrigated, IVe nonirrigated; Sandy Plains range site. best suited are skunkbush sumac, lilac, and Siberian
73—Vona loamy sand, 3 to 5 percent slopes. This is a peashrub.
deep, somewhat excessively drained soil on plains and Wildlife is an important secondary use of this soil. The
high terraces at elevations of 4,600 to 5,200 feet. It cropland areas provide favorable habitat-for ring-necked
formed in eolian or alluvial deposits. Included in mapping pheasant and mourning dove. Many nongame species can
are some leveled areas. Also included are small areas of be attracted by establishing areas for nesting and escape
soils that have a loamy substratum and some areas of cover. For pheasants, undisturbed nesting cover is essen-
tial and should be included in plans for-habitat develop-
soils that are noncalcareous to a depth of 60 inches.
ment, especially in areas of intensive agriculture. Range-
Typically the surface layer of this Vona soil is grayish
land wildlife, for example, the pronghorn antelope, can be
brown. The upper 6 inches is loamy sand and the lower 5
inches is fine sandy loam. The subsoil is brown and light attracted by developing livestock watering facilities,
yellowish brown fine sandy loam about 14 inches thick. managing livestock grazing, and reseeding where needed.
The substratum to a depth of 60 inches is sandy loam. This soil has good potential for urban and recreational
development. Once established, the lawns, shrubs, and
Permeability is moderately rapid. Available water
trees grow well. The primary limiting soil feature is the
capacity is moderate. The effective rooting depth is 60
inches or more. Surface runoff is slow, and the erosion rapid permeability in the substratum, which causes a
hazard is low. hazard of ground water contamination from sewage
lagoons. In places recreational development is limited by
This soil is suited to limited cropping. Intensive
the susceptibility to soil blowing. Capability subclass IVe
cropping is hazardous because of soil blowing. The
irrigated, VIe nonirrigated; Sandy Plains range site.
cropping system should be limited to such close grown
crops as alfalfa, wheat, and barley. The soil is also suited i4—Vona loamy sand, 5 to 9 percent slopes. This is a
to irrigated pasture. A suitable cropping system is 3 to 4 deep, somewhat excessively drained soil on plains at
years of alfalfa followed by 2 years of corn and small elevations of 4,600 to 5,200 feet. It formed in eolian
deposits. Included in mapping are small areas of soils that
grain and alfalfa seeded with a nurse crop.
have a loamy substratum and areas of soils that are non-
Closely spaced contour ditches or sprinklers can be
used in irrigating close grown crops. Contour furrows or calcareous to a depth of 60 inches.
spinklers should be used for new crops. Application of Typically the surface layer is grayish brown. The upper
6s inches is loamy sand and the lower 4 inches is fine
barnyard manure and commercial fertilizer helps to main-
twin good production. sandy loam. The subsoil is broom and light yellowish
sub-
The potential native vegetation on this range site is brown fine sandy loam about 12 inches thick. The dominated by sand bluestem, sand reedgrass, and blue stratum at a depth of 60 atel is loamy Available
grama. Needleandthread, switchgrass, sideoats grama, capacPermeability is moderately rapid. Available water
and western wheatgrass are also prominent. Potential inches to is more. Su moderate. The effective medium,rooting depth is on
production ranges from 2,200 pounds per acre in favora- or Surface runoff is and the erosion
ble years to 1,800 pounds in unfavorableyears. As range hazard is low.
g The ted potential y native d vegetation on this range site is
condition deteriorates, the sand bluestem, sand reedgrass, dominated by sand bluestem, sand reedgrass, and blue
and switchgrass decrease and blue grama, sand dropseed, grama. Needleandthread, switchgrass, sideoats grama,
and sand sage increase. Annual weeds and grasses invade and western wheatgrass are also prominent. Potential
the site as range condition becomes poorer.
production ranges from i
favora-
Management of vegetation on this soil should be based ble years to 1,800 poun
s n favor per able years.
in range
on taking half and leaving half of the total annual produc- condition deteriorates,
eterior t s, the sandlustem, sand reedgrass,
tion. Seeding is desirable if the range is in poor condition. and switchgrass decrease and blue grama, sand dropseed,
Sand bluestem, sand reedgrass, switchgrass, sideoats and sand sage increase. Annual weeds and grasses invade
grama, blue grama, pubescent wheatgrass, and crested the site as range condition becomes poorer.
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