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Bouldin soil and landscape

A soil profile and landscape of the Bouldin soil series in Kentucky. Typical profile of Bouldin very bouldery loam. The Bouldin series consists of deep, somewhat excessively drained soils that formed in stony colluvium weathered from interbedded sandstone, siltstone, and shale.

 

Landscape: An area of Shelocta-Bouldin complex, 30 to 75 percent slopes, extremely stony, very rocky, on the side slopes of the gorge below the sandstone escarpment. They are on steep and very steep hillslopes and mountainflanks with slopes that range from 10 to 75 percent. (Soil Survey of the Big South Fork National River and Recreation Area, KY and TN; by Harry S. Evans and Jennifer Y. Mason, Natural Resources Conservation Service)

 

Elevation: 244 to 500 meters

Mean annual precipitation: 1,211 to 1,542 millimeters

Mean annual air temperature: 5 to 19 degrees C

Frost-free period: 139 to 187 days

Map Unit Composition

Contrasting soils: Gilpin soils—5 percent; Ramsey soils—5 percent; Rock outcrop—5

percent; Wallen soils—5 percent; Kimper soils—2 percent; Muse soils—2 percent;

Wernock soils—2 percent; Alticrest soils—1 percent; Craigsville soils—1 percent;

Lily soils—1 percent; Sequoia soils—1 percent

 

Description of Bouldin soil

Setting

Landform: Gorge on dissected plateau

Landform position (two-dimensional): Footslope

Landform position (three-dimensional): Base slope and head slope

Down-slope shape: Concave

Across-slope shape: Concave

Parent material: Loamy-skeletal colluvium derived from sandstone and shale

Soil Properties and Qualities

Depth class: Very deep

Drainage class: Somewhat excessively drained

Organic matter content in the surface layer: 1.0 to 4.0 percent

Saturated hydraulic conductivity (Ksat ): High

Available water capacity: Low—about 12.2 centimeters to a depth of 152 centimeters

Depth to restrictive features: Greater than 203 centimeters

Potential for surface runoff: Medium

Depth to the top of the seasonal high water table: Greater than 2 meters

Flooding: None

Ponding: None

Surface layer texture: Very bouldery fine sandy loam

Calcium carbonate maximum: 0 percent

Shrink-swell potential: Low

 

Typical Profile

0 to 15 centimeters; very bouldery fine sandy loam

15 to 33 centimeters; very bouldery loam

33 to 203 centimeters; very bouldery loam

 

Interpretive Groups

Land capability classification: 7s

Prime farmland: Not prime farmland

Hydric soil: No

 

Use and Management Concerns

• These soils are unsuited to cropland.

• These soils are unsuited to pasture and hayland.

• Proper planning for resource management is essential in order to minimize the potential negative impact to soil and water quality, especially in areas on steeper slopes.

• A resource management plan should focus on the proper location of hiking, horse, and multi-use trails, and careful attention should be given to all applicable best management practices.

• The slope poses safety hazards and creates a potential for erosion during the construction or maintenance of hiking, biking, horse, and multi-use trails.

• The slope creates unsafe operating conditions and reduces the operating efficiency of off-road vehicles.

• Because of the slope, the use of equipment for planting and seeding is impractical.

• The slope makes the use of mechanical planting equipment impractical.

• The use of mechanical planting equipment is impractical because of the content of rock fragments.

• Rock fragments restrict the use of equipment during site preparation for planting or seeding.

• The low strength interferes with the construction of trails, especially multi-use trails.

 

For additional information about the survey area, visit:

www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/tennessee/big_...

 

For a detailed soil description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/B/BOULDIN.html

 

For acreage and geographic distribution, visit:

casoilresource.lawr.ucdavis.edu/see/#bouldin

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Uploaded on January 26, 2011
Taken in January 2000