Vulnerable Soils: Sodicity Hazard

Soil sodicity hazard was digitally mapped as part of the DPIPWE Water for Profit Program to enhance identification of Enterprise Suitability by effectively incorporating a sustainability measure of vulnerable soils. The mapping shows areas where a sodicity hazard might exist if sufficient management is not applied, which could lead to soil resource degradation. Assigned classes are; Nil, Low, Moderate and High as classified ratings of a sodicity hazard index. The index was generated by combining Digital Soil Mapping (DSM) inputs of the soil properties of Exchangeable Sodium Percentage (ESP) for standard depths, with ratings developed by the DPIPWE Land Degradation and Salinity Risk assessments. The mapping covers the entire state of Tasmania at 30m resolution.