IUSS Working group World Reference Base for Soil Resources

World Reference Base for Soil Resources (WRB) is an international soil classification system for naming soils and creating legends for soil maps

The mission of the Working Group WRB is to test and further develop the WRB classification. The Working Group WRB was set up by the International Union of Soil Sciences (IUSS) in 1994. It belongs to IUSS Division 1 - Soils in Space and Time, Commission 1.4. - Soil Classification.