ASRIS Technical Specifications V1.6

Table 45: Codes for Family criteria in the Australian Soil ClassificationCode Code description– Not recorded M Clay-loamyA Thin N SiltyB Medium O ClayeyC Thick P GranularD Very thick Q FineE Non-gravelly R Medium fineF Slightly gravely S Very fineG Gravelly T Very shallowH Moderately gravelly U ShallowI Very gravely V Moderately deepJ Peaty W DeepK Sandy X Very deepL Loamy Y GiantTable 46: Method for allocating profile to the classification system (either ASC or WRB)Method Description based on:1 Morphology and analytical data from the land-unit tract2 Morphology data from the land-unit tract3 Morphology and analytical data from similar soils in the same land unit type4 Morphology data for similar soils in the region or project area5 Experience with morphologically similar soils in other regionsWorld Reference BaseAllocation to the World Reference Base to the level of the Reference Group with one or two qualifiers ispreferred but conversion of historic data sets may not be possible in the short term. This attribute isrequired to ensure compatibility with SOTER.Experience with the World Reference Base in Australia is limited and few allocations have been recorded inagency databases. The time needed to allocate soils within ASRIS is not available. As an interim measure,dominant soils will be identified at approximately Level 3 within ASRIS – the most common three will beallocated to the World Reference Base.60