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Pedernales soil series

A soil profile of Pedernales fine sandy loam in an area of Pedernales fine sandy loam, 1 to 3 percent slopes. Pedernales soils are on alluvial plain remnants associated with the Hensell Sand Formation. The loamy surface from 0 to 12 inches (0 to 30 cm) rests on top of a clayey subsoil. Most areas are used for cropland with small grains or forage sorghum. (Soil Survey of Mason County, Texas; by Julia A. McCormick, Natural Resources Conservation Service)

 

The Pedernales series consists of very deep, well drained soils that formed in loamy and clayey, calcareous slope alluvium over residuum. These soils are on nearly level to moderately sloping alluvial plain remnants. Slopes are 0 to 8 percent. Mean annual temperature is about 19 degrees C (66 degrees F), and mean annual precipitation is about 711 mm (28 in).

 

TAXONOMIC CLASS: Fine, mixed, active, thermic Typic Paleustalfs

 

Solum thickness: 150 to 200 cm (60 to 80 in)

Depth to secondary carbonates: 71 to 127 cm (28 to 50 in)

Fragments: Amount-0 to 5 percent by volume; kind-limestone and siliceous; size-fine and medium gravel

 

DRAINAGE AND PERMEABILITY: These soils are well drained. Permeability is moderately slow. Runoff is negligible on slopes less than 1 percent, very low on 1 to 3 percent slopes, low on 3 to 5 percent slopes, and medium on 5 to 8 percent slopes.

 

USE AND VEGETATION: Used mainly for growing grain sorghums, small grain, and peaches. Native vegetation is post oak and mid and tall grasses.

 

DISTRIBUTION AND EXTENT: Central Texas; Central Great Plains Winter Wheat and Range Region, LRR-H: MLRA 78A-Rolling Limestone Prairie; and MLRA 80B-Texas North-Central Prairies. Southwest Plateaus and Plains Range and Cotton Region, LRR-I: MLRA 81B-Edwards Plateau, Central Part; MLRA 81C-Edwards Plateau, Eastern part; MLRA 82A-Texas Central Basin. Southestwern Prairies Cotton and Forage Region, LRR-J:. MLRA 84B-West Cross Timbers. The series is of large extent with about 500,000 acres.

 

For additional information about the survey area, visit:

www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/texas/masonTX2...

 

For a detailed soil description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/P/PEDERNALES.html

 

For acreage and geographic distribution, visit:

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

 

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Uploaded on March 27, 2011
Taken in January 2000