World Reference Base (WRB) for Soil Resources

The World Reference Base (WRB) for Soil Resources serves as a portal for a range of authoritative resources useful to those engaged in soil classification and mapping. The WRB project, ongoing since 1980, attempts to “reach international agreement on the major soil groups to be recognized at a global scale as well as on the criteria and methodology to be applied for defining and separating them…to facilitate the exchange of information and experience, to provide a common scientific language, to strengthen the applications of soil science and to enhance the communication with other disciplines” (www.fao.org/ag/AGL/agll/wrb/default.stm). These efforts led...