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Longsfolly soil and landscape

Soil profile: A representative soil profile of the Longsfolly soil series. (Soil Survey of Pinnacles National Monument, California; by Ken Oster, Natural Resources Conservation Service)

 

Landscape: Typical area of a Longsfolly soil. Vegetation is mixed chaparral.

 

The Longsfolly series consists of deep to soft fanglomerate, somewhat excessively drained soils that formed in colluvium over residuum weathered from fanglomerate on hills. Slopes range from 15 to 50 percent. The mean annual precipitation is about 17 inches (432 millimeters) and the mean annual air temperature is about 61 degrees F (16 degrees C).

 

TAXONOMIC CLASS: Sandy, mixed, thermic Entic Haploxerolls

 

Depth to paralithic contact: 40 to 60 inches (100 to 150 centimeters).

Mean annual soil temperature: 60 to 63 degrees F (16 to 17 degrees C).

Soil moisture control section: dry in all parts from about June 15 to November 15 (150 days), and moist in all parts from about January 15 to May 1 (105 days).

Particle size control section: clay content: 2 to 5 percent clay, Coarse fragments: 15 to 35 percent gravel .

Soil Reaction: moderately acid to slightly alkaline

Base Saturation by ammonium acetate: 83 to 90%

 

USE AND VEGETATION: This soil is used for watershed, wildlife habitat and recreation. Vegetation is mixed chaparral.

 

DISTRIBUTION AND EXTENT: San Benito and Monterey Counties, California in MLRA 15 -- Central California Coast Range. These soils are of small extent. Source of name: rock formation in Pinnacles National Monument. This series was established based on limited acreage observed within the National Park Service Pinnacles National Monument boundary.

 

For additional information about the survey area, visit:

www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/california/CA7...

 

For a detailed soil description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/L/LONGSFOLLY.html

 

For acreage and geographic distribution, visit:

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

 

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Uploaded on April 23, 2011
Taken in January 2000