Houdek (soil)

From Wikipedia, the free encyclopedia

Houdek is a type of soil composed of glacial till and decomposed organic matter. It is found only in the U.S. state of South Dakota where it is the state soil.

Houdek topsoil is composed of weathered glacial till and 2% to 4% organic matter which gives it a deep, dark color. The subsoil consists of layers of clay and lime accumulations that were carried downward from the surface by water. Below these layers is the parent material of glacial till.

Surface layer

Dark grayish brown loam

Subsoil - upper

Dark grayish brown clay loam

Subsoil - middle

Grayish brown clay loam

Subsoil - lower

Light olive brown clay loam

Substratum

Light yellowish brown clay loam

[edit] See also

• List of U.S. state soils

[edit] References

• Houdek Loam; The State Soil of South Dakota. Professional Soil Scientists Association of South Dakota (2002-12). Retrieved on 2007-06-01.
• Houdek -- South Dakota State Soil (PDF). U.S. Dept. of Agriculture, National Resources Conservation Service. Retrieved on 2007-07-18.