Cecil (soil) Totally Explained

Everything about Cecil Soil totally explained

]Originally mapped in Cecil County, Maryland in 1899, more than 10 million acres (40,000 km²) of the Cecil soil series (Fine, kaolinitic, thermic Typic Kanhapludults) are now mapped in the Piedmont region of the southeastern United States. It extends from Virginia through North Carolina (where it's the state soil), South Carolina, Georgia and Alabama, with the typic Cecil pedon

actually located in Franklin County, NC. A map showing the actual extent of the Cecil series

is available at the Center for Environmental Informatics

The Cecil series developed over igneous rock such as granite, and metamorphic rock which is chemically similar to granite. Virgin Cecil soils support forests dominated by pine, oak and hickory, and have a topsoil of brown sandy loam. The subsoil is a red clay which is dominated by kaolinite and has considerable mica. Few Cecil soils are in their virgin state, for most have been cultivated at one time or another. Indifferent land management has allowed many areas of Cecil soils to lose their topsoils through soil erosion, exposing the red clay subsoil. This clay is amenable to cultivation, responds well to careful management, and supports good growth of pine where allowed to revert to forest. Like other well-drained Ultisols, it's ideal for urban development; however, in common with other kaolinite-dominated clays, it has little ability to recover from soil compaction. Total potassium in the Cecil is higher than typical for Ultisols due to the presence of mica.

Official Profile Description

Ap--0 to 8 inches; dark yellowish brown (10YR 4/4) sandy loam; weak medium granular structure; very friable; slightly acid; abrupt smooth boundary. (2 to 8 inches thick)
   Bt1--8 to 26 inches; red (10R 4/8) clay; moderate medium subangular blocky structure; firm; sticky, plastic; common clay films on faces of peds; few fine flakes of mica; strongly acid; gradual wavy boundary.
   Bt2--26 to 42 inches; red (10R 4/8) clay; few fine prominent yellowish red (5YR 5/8) mottles; moderate medium subangular blocky structure; firm; sticky, plastic; common clay films on faces of peds; few fine flakes of mica; very strongly acid; gradual wavy boundary. (Combined thickness of the Bt horizon is 24 to 50 inches)
   BC--42 to 50 inches; red (2.5YR 4/8) clay loam; few distinct yellowish red (5YR 5/8) mottles; weak medium subangular blocky structure; friable; few fine flakes of mica; very strongly acid; gradual wavy boundary. (0 to 10 inches thick)
   C--50 to 80 inches; red (2.5YR 4/8) loam saprolite; common medium distinct pale yellow (2.5Y 7/4) and common distinct brown (7.5YR 5/4) mottles; massive; very friable; few fine flakes of mica; very strongly acid.

Further Information

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