|
<br />PUEBLO AREA, COLORADO
<br />The water table is at a depth of 1.5 to 3 feet. The sur-
<br />face layer is ]ow to High in content of salts.
<br />The native vegetation is inland saltgrass, alkali
<br />sacaton, tamarisk, and willow. Capability units IIIw-2,
<br />irrigated, and VIty-1, nonirrigated; Salt ilIeaclow
<br />range site.
<br />Limon Series
<br />The Limon set•ies consists of deep, well-drained soils.
<br />These soils formed on alluvial fans and terraces in
<br />claye}• alluvium. The slope is 0 to 5 percent, and eleva-
<br />tion is 4,300 to 5,100 feet. The average annual pt•ecipi-
<br />tation is 12 inches. The average annual temperature is
<br />53°F, and the frost-free season is 145 to 175 days. The
<br />native vegetation is mainly plains grasses.
<br />In a representative profile the surface layer is gray-
<br />ish-brown silty clay' loam about 4 inches thick. The sub-
<br />surface layer is light brownish-gray silty clay about
<br />14 inches thick. The underlying material is light
<br />brownish-gray silt}• clay about 17 inches thick over
<br />light brownish-gray silt}- clay loam that extends to a
<br />depth of 60 inches ot• more.
<br />Permeability is slaw', and the available water ca-
<br />pacitvis high. The surface and subsurface layers are
<br />moderately alkaline and the underlying material is
<br />moderately alkaline or strongly alkaline. The root zone
<br />extends to a depth of more than 60 inches. These soils
<br />are used fot• grazing and irrigated crops.
<br />Representative profile of Limon silty clay loam, 0 to
<br />2 percent slopes, in grass, 2.5 miles west and 0.2 mile
<br />north of the southeast corner of sec. 36, T. 25 S., R.
<br />60 ~V.
<br />A-0 to 4 inches, grayish-brown (2.SYR 5/2) silty clay loam,
<br />_ dark grayish brawn (101'R 4/2) when moist; weak,
<br />fine and very fine, granular structure; slightly hard,
<br />firm; sticky and plastic; calcareous; moderately alka-
<br />line; abrupt, smooth boundary.
<br />AC-4 to 18 inches, light brownish-gray (2.5Y 6/2) silty
<br />clay, dark grayish brown (2.5Y d/2) when moist; weak,
<br />medium and fine, subangular blocky structure; hard,
<br />firm; sticky and plastic; calcareous; moderately alka-
<br />line; abrupt, smooth boundary.
<br />C1-18 to 35 inches, light brownish-gray (2.5Y 6/2) si1Ty
<br />clay, dark grayish brawn (2.SY 4/2) when moist; weak,
<br />fine and very fine, subangular blocky structure; hard,
<br />firm; sticky and plastic; calcareous; fine filaments and
<br />threads; crystalline gypsum; moderately alkaline;
<br />gradual, smooth boundary.
<br />C2-35 to 60 inches, light brownish-gray (2.5Y 6/2) silty
<br />clay loam, dark grayish brown (2.5Y 4/2) when moist;
<br />massive; slightly hard, friable; sticky and plastic;
<br />strongly calcareous; moderately alkaline.
<br />These soils range from moderatel}• alkaline to strongly
<br />alkaline. They range from clay' to silty clay loam. The AC
<br />and C horizons have weak blocky and weak platy structure
<br />or are massive.
<br />LnA-Limon silty clay loam, 0 to 2 percent slopes.
<br />This soil is on alluvial fans and terraces in the not•th-
<br />centraland southeastern parts of the survey area. The
<br />areas cover as much as 1,000 acres. This soil has the
<br />profit? described as representative of the series.
<br />Included with this soil in mapping are areas of Razor
<br />soils that make up about 5 percent of the acreage.
<br />Runoff is medium. The hazard of erosion is generally
<br />moderate, but it is severe in places. Deep gullying and
<br />soil piping are hazards where the range is overgrazed.
<br />21
<br />The soil generally is not subject to flooding, but long,
<br />narrow, nearly level areas along Dry Creek, Haynes
<br />Creek, and Kramer Creek and similar areas are subject
<br />to frequent, brief flooding.
<br />This soil is difficult to till because it is cloddy when
<br />dn• and sticky and plastic when wet. The native grasses
<br />are main]}' galleta, blue grama, and alkali sacaton. Capa-
<br />bility units IIe-1, irrigated, and VIe-2, nonirrigated;
<br />Salt Flats range site.
<br />LnI3---Limon silty clay loam, 2 to 5 percent slopes.
<br />This soil is in long, narrow areas behveen the Arkansas
<br />P.ivet• and Fountain Ct•eek. The areas cover as much
<br />as 300 acres. This soil has a profile similar to the one
<br />described as representative of the series.
<br />Included with this soil in mapping are areas of Razor
<br />soils that make up about 20 percent of the acreage.
<br />Runoff is rapid, and the hazard of erosion is high.
<br />The native grasses are mainly alkali sacaton, blue
<br />grama, and galleta. Capability units IIIe-2, irrigated,
<br />and VIe-2, nonirrigated; Salt Flats range site.
<br />LoA-Limon silty- clay, 0 to 2 percent slopes. This
<br />soil is on alluvial fans and terraces in the north-central
<br />and southn•estern parts of the survey area. The areas
<br />covet• as much as 800 acres. This sail has a profile
<br />similat• to the one described as representative of the
<br />series, but the surface layer is silty clay and the under-
<br />lying material is strongly alkaline. About 15 percent
<br />of the surface area is covered by barren slickspots.
<br />Included with this soil in mapping are areas of
<br />Apishapa and Havet•son soils that make up about 10
<br />percent each of the acreage.
<br />Runoff is slow, and the hazard of erosion is moderate.
<br />This soil is difficult to till because it is sticky and
<br />plastic when wet. The native vegetation is mainly
<br />alkali sacaton, blue grama, galleta, and greasewood.
<br />Capability units IIls-1, irrigated, and VIe-2, nonirri-
<br />gated; Salt Flats range site.
<br />LvB---Limon silty clay, 0 to 5 percent slopes, guliied.
<br />This soil is in the central part of the survey area. The
<br />areas are irregularly shaped and cover as much as 600
<br />acres. This soil has a profile similat• to the one described
<br />as representative of the series, but the surface layer is
<br />silty clay and the areas are dissected by gullies that
<br />are 2 to 10 feet deep.
<br />Included with this soil in mapping are areas of 14Iid-
<br />way soils and Shale outcrop that make up about 15
<br />percent of the acreage.
<br />Runoff is rapid, and the hazard of erosion is high.
<br />Range seeding is difficult because of the deep gullies.
<br />Capability unit VIIe-1, nonirrigated; not in a range
<br />site.
<br />Manv'el Series
<br />The illanvel series consists of deep, well-drained soils.
<br />These soils formed on alluvial fans in silty collttvial amt
<br />alluvial material that weathered mainly from limestone.
<br />The slope is 0 to 5 percent, and elevation is 4,400 to
<br />5,800 feet. The average annual precipitation is 12
<br />inches. The average annual temperature is 53° F, and
<br />the frost-free season is 145 to 175 days. The native
<br />vegetation is mainly plains grasses.
<br />I-6
<br />
|