It can take more than 1000 years to form a centimeter of topsoil.

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The International Union of Soil Sciences (IUSS) is the global union of soil scientists. The objectives of the IUSS are to promote all branches of soil science, and to support all soil scientists across the world in the pursuit of their activities. This website provides information for IUSS members and those interested in soil science.

Soils 4 u

Soils 4 u provides comprehensive information on different soil topics. If you have information that you would like to share with the global soil science community, please contact the IUSS Secretary.

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