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<br />Weld County, Colorado, Northern Pari
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<br />the seasonal requirements of livestock or wildlife, or
<br />both. Salt-tolerant grasses can be grown. Other
<br />management practices that are suitable for use on this
<br />unit are proper range use, deferred grazing, and rotation
<br />grazing. Uvestock grazing should be managed to protect
<br />the soil in this unit from excessive erosion. Loss of the
<br />surface layer results in a severe decrease in productivity
<br />and in the potential of the unit to produce plants suitable
<br />for grazing. .
<br />The Avar soil is poorly suited to windbreaks and
<br />environmental plantings. The main limitations are
<br />restricted root growth and decreased available water
<br />capacity because of the strong alkalinity and salinity of
<br />the subsoil and substratum.
<br />The Manzanola soil is well suited to windbreaks arid
<br />environmental plantings. It has few limitations.
<br />Supplemental irrigation may be needed when planting
<br />and during dry periods. Summer fallow, cultivation for
<br />weed control; and selection of adapted plants are
<br />needed to insure establishment and survival of
<br />seedlings.
<br />This map unit is in capability subclass Vis,
<br />nonirrigated. The Avar soil is in Salt Flat range site, and
<br />the Manzanola soil is in Clayey Plains range site.
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<br />11-Badland. Badland is mainly in the northern part of
<br />the survey area. It consists of gently sloping to steep
<br />areas dissected by many intermittent channels that are
<br />entrenched in calcareaus soft siltstone, soft claystone,
<br />and fine-grained sandstone of the White River
<br />Formation. About 75 percent Or more of the unit is
<br />barren. Runoff is very high, and the hazard of erosion is
<br />very high.
<br />Included in this unit are small areas of Kim and
<br />Mitchell soils, Thedalund and Keota loams, Shingie clay
<br />loam, Epping silt loam, and Haverson loam. These soils
<br />support some vegetation that has limited value for
<br />livestock grazing and wildlife habitat
<br />This map unit is in capability subclass Vllle,
<br />nonirrigated.
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<br />12-Bankard loamy fine sand, 0 to 3 percent
<br />slopes. This deep, well drained to somewhat excessively
<br />drained soil is on flood plains. It formed in stratified,
<br />calcareous sandy alluvium.
<br />Typically, the surface layer is brown loamy fine sand 6
<br />inches thick. The upper part of the underlying material is
<br />loamy sand and sand 28 inches thick, and the lower part
<br />to a depth of 60 inches or more is gravelly sand and
<br />very gravelly sand that is stratified with thin lenses of
<br />sand, sandy loam, and loam. In some areas the surface
<br />layer is sandy loam or loam.
<br />Included in this unit are small areas of sand and gravel
<br />bars.
<br />Permeability of this Bankard soil is rapid. Available
<br />water capacity is low. Effective rooting depth is 60
<br />inches or more. Runoff is slow, and the hazard of water
<br />erosion is slight. The hazard of soil blowing is high. This
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<br />soil is subject to brief periods of flooding in spring and
<br />summer.
<br />This unit is used as rangeland.
<br />The potential plant community on this unit is mainly
<br />. switchgrass, Indiangrass, sand bluestem, and prairie
<br />sandreed. The average annual production of air-dry
<br />vegetation ranges from 1,200 to 2,500 pounds.
<br />If the range is overgrazed, the proportion of preferred
<br />forage plants decreases and the proportion of less
<br />preferred forage plants increases. Therefore, livestock
<br />grazing should be managed so that the desired balance
<br />of preferred species is maintained in. the plant
<br />community.
<br />Range seeding is suitable if the range is in poor
<br />condition. The plants selected for se'eding should meet
<br />the seasonal requirements of livestock or wildlife, or
<br />both. Other management practices that are suitable for
<br />use on this unit are proper range use, deferred grazing,
<br />and rotation grazing. Uvestock grazing should be
<br />managed to protect the soil in this unit from excessive
<br />erosion.
<br />This unit is poorly suited to windbreaks and
<br />environmental plantings.
<br />This map unit is in capability subclass Vlw,
<br />nonirrigated, and in Sandy Bottomland range site.
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<br />13-Blakeland loamy sand, 0 to 6 percent slopes.
<br />This deep, somewhat excessively drained soil is on
<br />alluvial and colluvial fans. It formed in arkosic sandy
<br />alluvium and colluvium.
<br />Typically, the surface layer is dark grayish brown
<br />loamy sand 15 inches thick. The underiying material to a
<br />depth of 60 inches er more is loamy sand.
<br />Included in this unit are small areas of Bushman fine
<br />sandy loam, Bresser sandy loam, and Paoli fine sandy
<br />loam. Included areas make up about 15 percent of the
<br />total acreage.
<br />Permeability of this Blakeland soil is rapid. Available
<br />water capacity is moderate. Effective rooting depth is 60
<br />inches or more. Runoff is slow, and the hazard of water
<br />erosion is slight The hazard of soil blowing is high.
<br />This unit is used as rangeland.
<br />The potential plant community on this unit is mainly
<br />blue grama, sand bluestem, prairie sandreed, and
<br />needleandthread. The average annual production ef air-
<br />dry vegetation ranges from 800 to 2,000 pounds.
<br />If the range is overgrazed, the proportion of preferred
<br />forage plants decreases and the proportion of less
<br />preferred forage plants increases. Therefore, livestock
<br />grazing should be managed so that the desired balance
<br />of preferred species is maintained in the plant
<br />community.
<br />Range seeding is suitable if the range is in poor
<br />condition. The plants selected for seeding sheuld meet
<br />the seasonal requirements ef livestock or wildlife, or
<br />both. Other management practices that are suitable for
<br />use on this unit are preper range use, deferred grazing,
<br />and rotation grazing. If the plant cover is disturbed,
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