Soil color often indicates soil moisture status and is used for determining hydric soils. Often described by using general terms, such as dark brown, yellowish brown, etc., soil colors are also described more technically by using Munsell soil color charts, which separate color into components of hue (relation to red, yellow and blue), value (lightness or darkness) and chroma (paleness or strength).
Further reading
- "The Color of Soil". United States Department of Agriculture - Natural Resources Conservation Service. http://soils.usda.gov/education/resources/k_12/lessons/color/. Retrieved on 2007-11-25.
- "Soil Color Contrast". United States Department of Agriculture - Natural Resources Conservation Service. http://soils.usda.gov/technical/technotes/note2.html. Retrieved on 2007-11-25.
- "Why is the ground brown". http://www.physorg.com/news64045379.html. Retrieved on 2007-11-25.
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