Dept of Environment, Water and Natural Resources - Surface Rockiness (soils)

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Surface rockiness mapping describes the overall amount of surface stones and outcropping rock, in the context of management implications for farming. Mapping shows the estimated average degree of rockiness, while detailed proportion data are supplied for calculating respective areas of each surface rockiness class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Soil Salinity - Watertable induced

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This assessment refers to salinity which is linked to watertables. Soluble salts in soils affect plant growth by restricting water uptake. Salinity has varying degrees of severity and distribution. Mapping shows the degree of salinity and the proportion of land affected by discrete highly saline seepage, while detailed proportion data are supplied for calculating respective areas of each watertable induced salinity class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Soil Acidity

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Soil acidity mapping highlights land where acidification due to normal farming practices is, or could become, a significant problem. Mapping shows surface and subsoil acidity, and surface buffering capacity (ability to withstand pH changes), while detailed proportion data are supplied for calculating respective areas of each soil acidity class (spatial data statistics). Also available for download in the Australian Soil Resource Information System format: Surface Soil Acidity; Subsurface Soil Acidity and Subsoil Acidity.

Dept of Environment, Water and Natural Resources - Soil Rootzone Depth Potential CC - Hardy horticultural crops (e.g. grapes, olives)

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Potential rootzone depth for irrigated horticultural crops is affected by a range of soil parameters (e.g. soil physical condition, hard rock or hardpan, soluble salts, boron concentrations, alkalinity, acidity and sodicity). Mapping shows the estimated average potential rootzone depth for hardy crops (e.g. grapes, olives), while detailed proportion data are supplied for calculating respective areas of each rootzone depth potential class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Surface Soil Texture

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Surface texture (which refers to approximate clay content) influences many important soil qualities such as waterholding capacity, fertility and erodibility. Mapping shows the most common surface texture within each map unit, while more detailed proportion data are supplied for calculating respective areas of each surface soil texture class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Depth to Hard Rock (soils)

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Hard rock is basement rock or bedrock that is too hard to dig with hand tools (and does not include hardpans). Mapping shows the average estimated depth to hard rock, while detailed proportion data are supplied for calculating respective areas of each depth to hard rock class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Depth to Watertable (soils)

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Depth to watertable mapping highlights land where watertables may be sufficiently shallow on a seasonal basis to affect plant growth. It is intended to describe soil conditions for plant suitability and is not intended to be a literal map of watertable levels, which will change over time. Mapping shows the shallowest depth to watertable observed (provided it accounts for at least 30% of the map unit), while detailed proportion data are supplied for calculating respective areas of each depth to watertable class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Soil Rootzone Depth Potential CD - Root crops (e.g. potatoes, carrots, onions)

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Potential rootzone depth for irrigated horticultural crops is affected by a range of soil parameters (e.g. soil physical condition, hard rock or hardpan, soluble salts, boron concentrations, alkalinity, acidity and sodicity). Mapping shows the estimated average potential rootzone depth for root crops (e.g. potatoes, carrots, onions), while detailed proportion data are supplied for calculating respective areas of each rootzone depth potential class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Soil Waterlogging Susceptibility

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Waterlogging susceptibility describes the degree and duration of impact to soils, and hence plants, arising from poor drainage. Mapping indicates the most severely waterlogged areas (provided they occupy at least 30% of a map unit), while detailed proportion data are supplied for calculating respective areas of each waterlogging susceptibility class (spatial data statistics).

Dept of Environment, Water and Natural Resources - Structure of Subsoil (degree of limitation)

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Structure of subsoil provides an indication of impediments to root, and hence plant, growth due to poorly structured subsoils. Mapping shows the most limiting subsoil structure condition (provided it accounts for at least 30% of a map unit), while detailed proportion data are supplied for calculating respective areas of each structure of subsoil class (spatial data statistics).