Proposed changes to the soil family taxon within the Canadian System of Soil Classification

The soil family was developed in the 1960s as fourth level of taxa within hierarchical structure Canadian System Soil Classification. original aim category to provide a framework for checking and establishing limits series while providing link between subgroup level. Its intended use define group numerous based on characteristics important purpose applying appropriate management practices. In current Classification, at represent subdivisions subgroups. Classification mineral soils is properties parent materials which include particle size; mineralogy; reaction (soil pH); calcareousness; depth bedrock permafrost; well climactic factors: temperature moisture regimes. particle-size classes were originally compromise both agronomic engineering influences; however, resulting product has limited functionality because differences definitions grain sizes non-alignment with textural classes. Consequently, classification taxon have largely been ignored. Some adjustments terric layers organic are proposed including realignment triangle follow divisions Minor mineralogy also proposed.