Soil Survey of Karnes County, Texas Page: 30
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Soil Survey
This soil is well suited to recreational uses.
This Clareville soil is in capability subclass Ilc and
in the Clay Loam range site.
CbC-Colibro sandy clay loam, 3 to 5
percent slopes
This very deep, gently sloping, well drained soil is
on convex side slopes and ridgetops on uplands.
Areas are irregular in shape and range from 8 to 340
acres in size.
The typical sequence, depth, and composition of
the layers of this soil are as follows-
Surface layer:
0 to 9 inches, dark grayish brown, moderately alkaline
sandy clay loam
Subsoil
9 to 17 inches, brown, moderately alkaline sandy clay
loam
17 to 34 inches, light yellowish brown, moderately
alkaline sandy clay loam
34 to 56 inches, very pale brown, moderately alkaline
fine sandy loamUnderlying material:
56 to 80 inches, very pale brown,
loamy fine sandmoderately alkaline
Important soil properties-
Available water capacity: moderate
Permeability: moderately rapid
Drainage class: well drained
Runoff low
Root zone: very deep
Shrink-swell potential: low
Hazard of water erosion: moderate
Hazard of wind erosion: slight
Included with this soil in mapping are small areas of
Colibro soil that has slopes of less than 3 percent and
small areas where slopes are more than 5 percent.
Also included are small areas of Pernitas, Sarnosa,
Schattel, and Shiner soils. The Pernitas soil has a dark
surface layer and is in similar to slightly higher
positions on the landscape than those of the Colibro
soil. The Sarnosa soil has a fine sandy loam subsoil
and is in similar positions. The Schattel soil is more
clayey and is in similar to slightly higher positions. The
Shiner soil is shallow and is in similar to slightly higher
positions on the landscape. Included soils make up
less than 20 percent of this map unit.
This Colibro soil is used mainly as improved
pasture and rangeland. A few areas are used as
cropland or habitat for wildlife.Improved varieties of bermudagrass, bluestems,
and kleingrass are the major pasture grasses grown
on this soil. The moderate available water capacity, low
natural fertility, and high lime content of the soil are
limitations. Fertilizer applications, weed control, brush
management, proper stocking rates, and controlled
grazing can help conserve moisture and improve or
maintain productivity.
Native plants yield a moderate amount of forage.
The moderate available water capacity and low natural
fertility are limitations. Proper stocking rates, brush
management, and controlled grazing can help improve
or maintain productivity.
This soil has fair potential for use as openland and
rangeland wildlife habitat. The moderate available
water capacity limits the plant growth necessary for
good habitat.
This soil is moderately suited to use as cropland.
The moderate available water capacity, high lime
content of the soil, and low natural fertility are
limitations. The hazard of water erosion is moderate.
Fertilizer applications, minimum tillage, high-residue
and cover crops, and crop residue management can
help reduce soil temperature, conserve moisture, and
improve or maintain soil tilth and productivity. Terraces,
contour farming, grassed waterways, and diversion
terraces, where needed, can help reduce erosion.
This soil is moderately well suited to urban uses.
Excess lime in the soil and moderate potential for
corrosion of uncoated steel are limitations. Seepage
can be a problem for sewage lagoons, sanitary
landfills and reservoirs.
This soil is moderately well suited to recreational
uses. Slopes of more than 2 percent are a moderate
limitation for playgrounds.
This Colibro soil is in capability subclass Ille and in
the Gray Sandy Loam range site.
CbE-Colibro sandy clay loam, 5 to 12
percent slopes
This very deep, strongly sloping, well drained soil is
on convex side slopes and ridgetops on uplands.
Areas are irregular in shape and range from 8 to 50
acres in size.
The typical sequence, depth, and composition of
the layers of this soil are as follows-
Surface layer
0 to 8 inches, pale brown, moderately alkaline sandy
clay loam
Subsoil
8 to 18 inches, light yellowish brown, moderately
alkaline sandy clay loam30
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General Soil Map, Karnes County, Texas (Map)
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads. Includes legend and symbols. Scale 1:253,440
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United States. Soil Conservation Service. Soil Survey of Karnes County, Texas, book, 1999; Washington D.C.. (https://texashistory.unt.edu/ark:/67531/metapth130226/m1/30/?q=tex-land: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.