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Riverby soil series

A representative soil profile of Riverby gravelly sandy loam, frequently flooded. Riverby soils are high in content of gravel and sand. This causes droughtiness and limits the absorption of nutrients and pesticides. (Soil Survey of Hickman County, Tennessee; by Douglas F. Clendenon, Natural Resources Conservation Service)

 

The Riverby series consists of deep, excessively drained soils on flood plains. They formed in coarse textured alluvium in watersheds dominated by soils that formed in residuum from cherty limestone, siltstone, shale and gravelly marine sediments. Slopes range from 0 to 2 percent. The mean annual temperature is about 61 degrees F and the mean annual precipitation is about 55 inches.

 

TAXONOMIC CLASS: Loamy-skeletal, mixed, semiactive, nonacid, thermic Typic Udifluvents

 

Depth to bedrock is greater than 5 feet. Gravel content ranges from 10 to 60 percent in the A horizon and from 35 to 95 percent by volume in the C horizon. The content of cobbles ranges from 5 to 50 percent in parts of the C horizon. In some pedons the cobble content increases with depth. In some pedons there are thin layers of sandy material with no rock fragments. The reaction ranges from strongly acid to neutral.

 

USE AND VEGETATION: Areas of this soil are used mainly for woodland and pasture. A few small areas are used as cropland. Native vegetation is woodland consisting of sycamore, sweetgum, hackberry, maple, walnut, poplar, and ironwood.

 

DISTRIBUTION AND EXTENT: The Highland Rim of Tennessee. The series is of small extent. This series was formerly mapped as riverwash.

 

For additional information about the survey area, visit:

www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/tennessee/TN08...

 

For a detailed soil description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/R/RIVERBY.html

 

For acreage and geographic distribution, visit:

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

 

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Uploaded on May 7, 2011
Taken in January 2000