HomeMy WebLinkAbout20061732.tiff WELD COUNTY, COLORADO, SOUTHERN PART 23
Windbreaks and environmental plantings of trees and The potential native vegetation is dominated by blue
shrubs commonly grown in the area are generally well grama. Several mid grasses, such as western wheatgrass
suited to this soil. Cultivation to control competing and needleandthread, are also present. Potential produc-
vetation should be continued for as many years as tion ranges from 1,600 pounds per acre in favorable years
• able following planting. Trees that are best suited and to 1,000 pounds in unfavorable years. As range condition
1... e good survival are Rocky Mountain juniper, eastern deteriorates, the mid grasses decrease; blue grama, buf-
redcedar, ponderosa pine, Siberian elm, Russian-olive, and falograss, snakeweed, yucca, and fringed sage increase;
hackberry. The shrubs best suited are skunkbush sumac, and forage production drops. Undesirable weeds and an-
Siberian peashrub, lilac, and American plum. nuals invade the site as range condition becomes poorer.
Wildlife is an important secondary use of this soil. The Management of vegetation on this soil should be based
cropland areas provide favorable habitat for ring-necked on taking half and leaving half of the total annual produc-
pheasant and mourning dove. Many nongame species can tion. Seeding is desirable if the range is in poor condition.
be attracted by establishing areas for nesting and escape Sideoats grama, little bluestem, western wheatgrass, blue
cover. For pheasants, undisturbed nesting cover is essen- grama, pubescent wheatgrass, and crested wheatgrass are
tial and should be included in plans for habitat develop- suitable for seeding. The grass selected should meet the
ment, especially in areas of intensive agriculture. seasonal requirements of livestock. It can be seeded into
This soil has good potential for urban and recreational a clean, firm sorghum stubble, or it can be drilled into a
development. Increased population growth in the survey firm prepared seedbed. Seeding early in spring has
area has resulted in increased homesite construction. The proven most successful.
chief limiting feature for urban development and road Windbreaks and environmental plantings of trees and
construction is the limited capacity of the soil to support shrubs commonly grown in the area are generally well
a load. Septic tank absorption fields function properly, but suited to this soil. Cultivation to control competing
vegetation should be continued for as many years as
community sewage systems should be provided if the
possible following planting. Trees that are best suited and
population density increases. Because of the permeability
of the substratum, sewage lagoons must be sealed. have good survival are Rocky Mountain juniper, eastern
Lawns, shrubs, and trees grow well. Capability class I ir- redcedar, ponderosa pine, Siberian elm, Russian-olive, and
rigated. hackberry. The shrubs best suited are skunkbush sumac,
2-Kim loam, 1 to 3 percent slope�This is a deep, lilac, Siberian peashrub, and American plum.
we drained soil on Smoot p sins an alluvial fans at Wildlife is an important secondary use of this soil. The
elevations of 4,900 to 5,250 feet. It formed in mixed eolian cropland areas provide favorable habitat for ring-necked
pheasant and mourning dove. Many nongame species can
deposit and parent sediment from a wide variety of
ltrrarock. Included in mapping are small areas of soils that be attracted by establishing areas for nesting and escape
cover. For pheasants, undisturbed nesting cover is essen-
1 loamy sand underlying material.
tial and should be included in plans for habitat develop-
Typically the surface layer is brown and pale brown
loam about 12 inches thick. The upper 28 inches of the un- ment, especially in areas of intensive agriculture. Range-
land wildlife, for example, the pronghorn antelope, can be
derlying material is pale brown loam. The lower part to a
attracted by developing livestock watering facilities,
depth of 60 inches is pale brown fine sandy loam.
managing livestock grazing, and reseeding where needed.
Permeability is moderate. Available water capacity is
high. The effective rooting depth is 60 inches or more. This soil has good potential for urban and recreational
Surface runoff is medium, and the erosion hazard is low. development. Increased population growth in the survey
In irrigated areas this soil is suited to all crops com- chief ahea has resulted in increased forurban homesite development o ind. Tad
monly grown in the area, including corn, sugar beets, stlimiting soil limite capacity hissoil and road
beans, alfalfa, small construction Septi is the limited fid of this soil to support
grain, potatoes, and onions. An exam- a load. Septic tank absorption fields function properly, but
ple of a suitable cropping system is 3 to 4 years of alfalfa community sewage systems should be provided if the
followed by corn, corn for silage, sugar beets, small grain, population density increases. Because of the permeability
or beans. Land leveling, ditch lining (fig. 6), and installing of the substratum, sewage lagoons must be sealed.
pipelines may be needed for proper water applications. Lawns, shrubs, and trees grow well. Capability subclass
All methods of irrigation are suitable, but furrow ir- IIe irrigated, IVe nonirrigated; Loamy Plains range site.
meretion fis he most common.izer are needed for Bartop nyard
l manure and com- 33—Kim loam, 3 to 5 percent slopes. This is a deep,
s. well drained soil on plains and alluvial fans at elevations
In nonirrigated areas this soil is suited to winter wheat, of 4,900 to 5,250 feet. It formed in mixed eolian deposits
barley, and sorghum. Most of the acreage is planted to and parent sediment from a wide variety of bedrock. In-
winter wheat and is summer fallowed in alternate years eluded in mapping are small areas of soils that have
to allow moisture accumulation. Generally precipitation is loamy sand underlying material.
too low for beneficial use of fertilizer. Typically the surface layer is brown and pale brown
Stubble mulch farming, striperopping, and minimum til- loam about 10 inches thick. The upper 28 inches of the un-
lage are needed to control soil blowing and water erosion. derlying material is pale brown loam. The lower part to a
Terracing also may be needed to control water erosion. depth of 60 inches is pale brown fine sandy loam.
EXHIBIT
2006-1732 I
40 SOIL SURVEY
from 800 pounds per acre in favorable years to 500 production ranges from 1,750 pounds per acre in favora-
pounds in unfavorable years. As range condition deteri- ble years to 950 pounds in unfavorable years. As range
orates, the mid grasses decrease and forage production condition deteriorates, the sideoats grama, little bluestem,
,..,. drops. Undesirable weeds and annuals invade the site as and sand reedgrass decrease; yucca, sedge, and blue
range condition becomes poorer. grama increase; and forage production drops.
Management of vegetation on the Shingle soil should be Management of vegetation should be based on taking
based on taking half and leaving half of the total annual half or less of the total annual production. Deferred graz-
production. Seeding is desirable if the range is in poor ing is practical in improving range condition. Seeding and
condition. Western wheatgrass, blue grama, alkali sacaton, mechanical treatment are impractical.
sideoats grama, little bluestem, pubescent wheatgrass, Windbreaks and environmental plantings are generally
and crested wheatgrass are suitable for seeding. The not suited to this soil. Onsite investigation is needed to
grass selected should meet the seasonal requirements of determine if plantings are feasible.
livestock. It can be seeded into a clean, firm sorghum Production of vegetation on this treeless soil is low,
stubble, or it can be drilled into a firm prepared seedbed. especially during drought, when annual production can be
Seeding early in spring has proven most successful. as low as 300 pounds per acre. Rangeland wildlife, such as
The potential native vegetation on the Renohill soil is antelope and scaled quail, can be attracted by managing
livestock grazing, installing livestock watering facilities,
dominated by western wheatgrass and blue grama. Buf-
falograss is also presented. Potential production ranges and reseeding where needed.
This soil has poor potential for urban development. The
from 1,000 pounds per acre in favorable years to 600
chief limiting feature is the shallow depth to sandstone.
pounds in unfavorable years. As range condition deteri-
Capability subclass VIe irrigated, VIe nonirrigated; Sand-
orates, a blue grama-buffalograss sod forms. Undesirable
weeds and annuals invade the site as range condition stone Breaks range site.
becomes poorer. 62—Terry fine sandy loam, 0 to 3 percent slopes. This
Management of vegetation on the Renohill soil should is a moderately deep, well drained soil on plains at eleva-
be based on taking half and leaving half of the total an- tions of 4,500 to 5,000 feet. It formed in residuum from
nual production. Range pitting can reduce runoff. Seeding sandstone. Included in mapping are small areas of soils
is desirable if the range is in poor condition. Western that have sandstone deeper than 40 inches. Also included
are small areas of soils that have a subsoil of sandy clay
wheatgrass, blue grama, sideoats grama, buffalograss, pu-
bescent wheatgrass, and crested wheatgrass are suitable loam and clay loam.
for seeding. The grass selected should meet the seasonal Typically the surface layer of this Terry soil is pale
brown fine sandy loam about 6 inches thick. The subsoil is
requirements of livestock. It can be seeded into a clean,
firm sorghum stubble, or it can be drilled into a firm pale brown fine sandy loam about 21 inches thick. The
prepared seedbed. Seeding early in spring has proven substratum is very pale brown fine sandy loam. Sand-
most successful. stone is at a depth of about 37 inches.
Rangeland wildlife, such as antelope, cottontail, and Permeability is moderately rapid. Available water
capacity is moderate. The effective rooting depth is 20 to
coyote, are best suited to this unit. Because forage
production is typically low, grazing management is needed 40 inches. Surface runoff is slow, and the erosion hazard
if livestock and wildlife share the range. Livestock water- is low.
com-
ing facilities also are utilized by various wildlife species. This soil is in the t area.most of moderate th irrigated crops Capability subclass VIe irrigated, VIe nonirrigated; Shin- money grown in ta e The ystem depthcorn, restricts
rno
gle soil in Shaly Plains range site, Renohill soil in Clayey some arl ,A suitable yearsof cropping l system is This for
Plains ran e site. silage, barley, 3 to 4 of alfalfa, and wheat. This soil
asset fine sandy tam. 5 to 20 percent sum is also well suited to irrigated pasture.
This is a s allow, well drained soil on up an sea s at Furrows or sprinklers can be used in irrigating row
elevations of ow, e 5,200 feet. It formed in residuum crops. Flooding from contour ditches and sprinkling are
from sandstone. Included in mapping are small areas of suitable in irrigating close o grown crops and pasture. Small
heads ofti water and short runs freq the risk of onssand
sandstone outcrop and areas of noncalcareous soils. Production can be maintained by frequent irrigations and
Typically the surface layer of this Tassel soil is light by applications of barnyard manure and commercial fertil-
yellowish
brown yello g material is ne sandy about 7 inches thick. The izer. Keeping tillage to a minimum and utilizing crop
g yellowish brown very fine residue are important.
sandy loam. Sandstone is at a depth of about 11 inches. In nonirrigated areas this soil is suited to winter wheat,
Permeability is moderately rapid. Available water barley, and sorghum. Most of the acreage is planted to
capacity is low. The effective rooting depth is 10 to 20 winter wheat. The predicted average yield is 25 bushels
inches. Surface runoff is medium, and the erosion hazard per acre. The soil is summer fallowed in alternate years
is moderate. to allow moisture accumulation. Generale
The potential native vegetation is dominated by too low for beneficial use of fertilizer.Generally precipitation is
sideoats grama, little bluestem, blue grama, threadleaf Stubble mulch farming, striperopping, and minimum til-
sedge, sand reedgrass, and needleandthread. Potential lage are needed to control soil blowing and water erosion.
WELD COUNTY, COLORADO, SOUTHERN PART 41
The potential native vegetation on this range site is This soil is suited to limited cropping. Intensive
dominated by sand bluestem, sand reedgrass, and blue cropping is hazardous because of erosion. The cropping
grama. Needleandthread, switchgrass, sideoats grama, system should be limited to such close grown crops as al-
and western wheatgrass are also prominent. Potential falfa, wheat, and barley. The soil is also suited to ir-
p^iction ranges from 2,200 pounds per acre in favora- rigated pasture. A suitable cropping system is 3 to 4
b. „ears to 1,800 pounds in unfavorable years. As range years of alfalfa followed by 2 years of corn and small
condition deteriorates, the sand bluestem, sand reedgrass, grain and alfalfa seeded with a nurse crop.
and switchgrass decrease and blue grama, sand dropseed, Closely spaced contour ditches or sprinklers can be
and sand sage increase. Annual weeds and grasses invade used in irrigating close grown crops. Contour furrows or
the site as range condition becomes poorer. sprinklers should be used for new crops. Applications of
Management of vegetation on this soil should be based nitrogen and phosphorus help in maintaining good produc-
on taking half and leaving half of the total annual produc- tion.
tion. Seeding is desirable if the range is in poor condition. The potential native vegetation on this range site is
Sand bluestem, sand reedgrass, switchgrass, sideoats dominated by sand bluestem, sand reedgrass, and blue
grama, blue grama, pubescent wheatgrass, and crested grama. Needleandthread, switchgrass, sideoats grama,
wheatgrass are suitable for seeding. The grass selected and western wheatgrass are also prominent. Potential
should meet the seasonal requirements of livestock. It can production ranges from 2,200 pounds per acre in favora-
be seeded into a clean, firm sorghum stubble or it can be ble years to 1,800 pounds in unfavorable years. As range
drilled into a firm prepared seedbed. Seeding early in condition deteriorates, the sand bluestem, sand reedgrass,
spring has proven most successful. and switchgrass decrease and blue grama, sand dropseed,
Windbreaks and environmental plantings are generally and sand sage increase. Annual weeds and grasses invade
not suited to this soil. Onsite investigation is needed to the site as range condition becomes poorer.
determine if plantings are feasible. Management of vegetation on this soil should be based
Wildlife is an important secondary use of this soil. The on taking half and leaving half of the total annual produc-
cropland areas provide favorable habitat for ring-necked tion. Seeding is desirable if the range is in poor condition.
pheasant and mourning dove. Many nongame species can Sand bluestem, sand reedgrass, switchgrass, sideoats
be attracted by establishing areas for nesting and escape grama, blue grama, pubescent wheatgrass, and crested
cover. For pheasants, undisturbed nesting cover is essen- wheatgrass are suitable for seeding. The grass selected
tial and should be included in plans for habitat develop- should meet the seasonal requirements of livestock. It can
ment, especially in areas of intensive agriculture. Range- be seeded into a clean, firm sorghum stubble, or it can be
land wildlife, for example, the pronghorn antelope, can be drilled into a firm prepared seedbed. Seeding early in
,ttracted by developing livestock watering facilities, spring has proven most successful.
caging livestock grazing, and reseeding where needed. Windbreaks and environmental plantings are generally
The underlying sandstone is the most limiting feature not suited to this soil. Onsite investigation is needed to
of this soil. Neither septic tank absorption fields nor determine if plantings are feasible.
sewage lagoons function properly. Site preparation for Wildlife is an important secondary use of this soil. The
dwellings is costly. Enviornmental and beautification cropland areas provide favorable habitat for ring-necked
plantings of trees and shrubs can be difficult to establish. pheasant and mourning dove. Many nongame species can
Potential is good, however, for such recreational develop- be attracted by establishing areas for nesting and escape
ment as camp and picnic areas and playgrounds. Capabili- cover. For pheasants, undisturbed nesting cover is essen-
ty subclass IVe irrigated, IVe nonirrigated; Sandy Plains tial and should be included in plans for habitat develop-
range site. ment, especially, in areas of intensive agriculture. Range-
63—Terry fine sandy loam, 3 to 9 percent slopes. This land wildlife, for example, the pronghorn antelope, can be
is a moderately deep, well drained soil on plains at eleva- attracted by developing livestock watering facilities,
tions of 4,500 to 5,000 feet. It formed in residuum from managing livestock grazing, and reseeding where needed.
sandstone. Included in mapping are small areas of soils The underlying sandstone is the most limiting feature
that have sandstone deeper than 40 inches. Also included of this soil. Neither septic tank absorption fields nor
are small areas of soils that have a sandy clay loam and sewage lagoons function properly. Site preparation for
clay loam subsoil. dwellings is costly. Environmental and beautification
Typically the surface layer of this Terry soil is pale plantings of trees and shrubs can be difficult to establish.
brown fine sandy loam about 6 inches thick. The subsoil is Potential is good, however, for such recreational develop-
pale brown fine sandy loam about 18 inches thick. The ment as camp and picnic areas. Capability subclass IVe ir-
substratum is fine sandy loam. Sandstone is at a depth of rigated, VIe nonirrigated; Sandy Plains range site.
about 32 inches. ( —Thedalund loam,rto 3-pErcet> rirryhis is a
Permeability is moderately rapid. Available water moderately deep, well drained soil on plains at elevations
capacity is moderate. The effective rooting depth is 20 to of 4,900 to 5,250 feet. It formed in residuum from shale.
40 inches. Surface runoff is medium to rapid, and the ero- Included in mapping are small areas of soils that have
sion hazard is moderate. shale and sandstone deeper than 40 inches.
42 SOIL SURVEY
Typically the surface layer is brown loam about 8 The underlying shale is the most limiting feature of
inches thick. The underlying material is pale brown and this soil. Neither septic tank absorption fields nor sewage
very pale brown loam. Shale is at a depth of about 28 lagoons function properly. In places the underlying shale
inches. has high shrink-swell potential. Environmental and beau-
Permeability and available water capacity are tification plantings of trees and shrubs can be difficult to
moderate. The effective rooting depth is 20 to 40 inches. establish. Capability subclass IVs irrigated; IVe nonir-
Surface runoff is medium, and the erosion hazard is low. rigated; Loamy Plains range site.
This soil is suited to limited cropping. A suitable 65—Thedalund loam, 3 to 9 percent slopes. This is a
cropping system is 3 to 4 years of alfalfa followed by 2 moderately deep, well drained soil on plains at elevations
years of corn and small grain and alfalfa seeded with a of 4,900 to 5,250 feet. It formed in residuum from shale.
nurse crop. Incorporating plant residue and manure im- Included in mapping are small areas of soils that have
proves tilth and provides organic matter and plant shale and sandstone deeper than 40 inches. Some small
nutrients. outcrops of shale and sandstone are also included.
Most irrigation methods are suitable, but the length of Typically the surface layer of this Thedalund soil is
runs should be short to prevent overirrigation. Light, brown loam about 8 inches thick. The underlying material
frequent irrigations are best. Sprinkler irrigation is is pale brown and very pale brown loam. Shale is at a
desirable. Commercial fertilizers increase yields and add depth of about 25 inches.
to the value of the forage produced. Permeability and available water capacity are
In nonirrigated areas this soil is suited to winter wheat, moderate. The effective rooting depth is 20 to 40 inches.
Surface runoff is medium to rapid, and the erosion hazard
barley, and sorghum. Most of the acreage is planted to
winter wheat. The predicted average yield is 25 bushels is moderate.
per acre. The soil is summer fallowed in alternate years This soil is suited to limited cropping. Intensive
to allow moisture accumulation. Generally precipitation is cropping is hazardous because of erosion. The cropping
system should be limited to such close grown crops as al-
too low for beneficial use of fertilizer.
Stubble mulch fanning, striperopping, and minimum til- falfa, wheat, and barley. The soil is also suited to ir-
lage are needed to control soil blowing and water erosion. rigated pasture. A suitable cropping system is 3 to 4
Terracing also may be needed to control water erosion. Years of alfalfa followed by 2 years of corn and small
The potential native vegetation is dominated by blue grain and alfalfa seeded with a nurse crop.
grama. Several mid grasses, such as western wheatgrass Closely spaced contour ditches or sprinklers can be
and needleandthread, are also present. Potential produc- used in irrigating close grown crops. Contour furrows or
tion ranges from 1,600 pounds per acre in favorable years sprinklers should be used for new crops. Application of
to 1,000 pounds in unfavorable years. As range condition commercial fertilizer helps in maintaining good produc-
deteriorates, the mid grasses decrease; blue grama, buf-
lion.
falograss, snakeweed, yucca, and fringed sage increase; The potential native vegetation is dominated by blue
and forage production drops. Undesirable weeds and an- grama. Several mid grasses, such as western al pro
and needleandthread, are also present. Potential pro
nuals invade the site as range condition becomes poorer. duc-
tion ranges from 1,600 pounds per acre in favorable years
Management of vegetation on this soil should be based
on taking half and leaving half of the total annual produc- dt e1 for00 pounds the in unfavorable years. ; range condition
buf-
tion. Seeding is desirable if the range is in poor condition. deteriorates, mid grasses decrease; blue grama,
Sideoats grama, little bluestem, western wheatgrass, blue faloforage grass, snakeweed, drops.ca, and sii able sage increase-
and vd production h drops. Undesirable weeds ood an-
grama, pubescent wheatgrass, and crested wheatgrass are nuals invade the site as range condition becomes poorer.
suitable for seeding. The grass selected should meet the Management of vegetation on this soil should be based
seasonal requirements of livestock. It can be seeded into on taking half and leaving half of the total annual produc-
a clean, firm sorghum stubble, or it can be drilled into a tion. Seeding is desirable if the range is in poor condition.
firm prepared seedbed. Seeding early in spring has Sideoats grama, little bluestem, western wheatgrass, blue
proven most successful. grama, pubescent wheatgrass, and crested wheatgrass are
Windbreaks and environmental plantings are generally suitable for seeding. The grass selected should meet the
not suited to this soil. Onsite investigation is needed to seasonal requirements of livestock. It can be seeded into
determine if plantings are feasible. a clean, firm sorghum stubble, or it can be drilled into a
Rangeland wildlife, such as antelope, cottontail, and firm prepared seedbed. Seeding early in spring has
coyote, are best suited to this soil. Because forage produc- proven most successful.
tion is typically low, grazing management is needed if Windbreaks and environmental plantings are generally
livestock and wildlife share the range. Livestock watering not suited to this soil. Onsite investigation is needed to
facilities also are utilized by various wildlife species. The determine if plantings are feasible.
cropland areas provide favorable habitat for pheasant and Rangeland wildlife, such as antelope, cottontail, and
mourning dove. Many nongame species can be attracted coyote, are best suited to this soil. Because forage produc-
by establishing areas for nesting and escape cover. tion is typically low, grazing management is needed if
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