12 Soil Orders of the World

This is an awesome link to a website named "Dig It"! It includes pictures and explanations of the 12 different types of soil of the world.

http://forces.si.edu/soils/swf/soilorders.html

To me, the soil type known as Vertisol is very interresting. Vertisols are clayey soils that shrink and develop cracks when they dry and swell shut when they are moist. The location of these soils in the United States is primarily found in Texas where they are used to grow cotton.



This map shows where Vertisol soil can be found in the United States.