| Dataset Number | 1057 |
| Dataset Title | Recharge Potential |
| Custodian | Data Authority: Department for Environment and Water
Data Provider: Department for Environment and Water
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Description
| Description | The purpose of this assessment is to delineate those areas where there is potential for unused water to enter the groundwater system via the soil profile, based on the assumption that recharge is a function of soil profile waterholding capacity, substrate porosity and rainfall (position in the landscape, depth to watertable, and the presence of soil layers restrictive to drainage are also considered). Because the mapping program concentrated on soils and the materials immediately beneath them, the nature of substrates is commonly estimated from local knowledge and/or an understanding of regional stratigraphy. In fractured rock environments such as the Mt. Lofty-Flinders Range system, steeply dipping rock strata and consequent spatial variability across the landscape complicate these estimates. Four Recharge Potential analysis data classes (including not applicable) have been supplied, as percentage values of Soil Landscape Map Units to be used for the calculation of spatial data statistics. Note: the sum of all percentage values for each map unit totals one 100%. Recharge potential can vary significantly within Soil Landscape Map Units, therefore they are categorised INTO eight (plus not applicable) legend categories (RECHARGE) according to the proportions of high and moderate recharge potential. |
| Usage | Link to Soil Attribute Descriptions. This dataset has been derived from the Soil Landscape Map Units spatial dataset to be used for map creation or the calculation of spatial data statistics. Used to supply Government, community groups, industry and the general public with up to date regional, subregional and catchment level land and soil attribute information for southern South Australia. The aim is to produce maps, statistics and reports displaying and describing: Land and soil attributes within southern South AustraliaSELECT 1 FROM DUAL;
Land surface features affecting land use, land management and productivitySELECT 1 FROM DUAL;
Limitations / suitability of land and soil for a range of agricultural and other uses. Independent professional advice should be sought before using this in commercial decisions. Further information: soil and land attributes. Recharge Potential dataset can be viewed on NatureMaps (>Soils>Soil Moisture Attributes). Spatial data downloads are available from Data SA. |
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Data Quality
| Lineage | The dataset is based on an interpretation of 1:40,000 stereo colour aerial photography and limited field inspection of landscapes and soils by soil scientists. Soil Landscape Map Unit boundaries were determined after an integration of field observations and recordingsSELECT 1 FROM DUAL;
laboratory analysesSELECT 1 FROM DUAL;
stereoscopic examination of aerial photographsSELECT 1 FROM DUAL;
understanding of regional landscape processes and stratigraphySELECT 1 FROM DUAL;
existing soil and geological mapping data. To avoid inconsistencies and confusion, any updates to the Soil and Land Attribute mapping are to be managed by DEWNR Soil and Land Program. This data has been released under a Creative Commons licence. Where products are derived from this data, DEWNR are to be acknowledged, and any changes to the original data should be indicated. |
| Completeness | Complete. The spatial data is subject to amendment as and when more data become available. |
| Positional Accuracy | The accuracy is to the scale of mapping (50 metres at 1:50,000 and 300 metres at 1:100,000 mapping scale). The spatial data is to be used at the regional, subregional and catchment level, and can be used to provide property overviewsSELECT 1 FROM DUAL;
however, cannot be used at the paddock level. South East, Kangaroo Island, Mount Lofty Ranges and the 'bottom' of Yorke Peninsula have been mapped at 1:50,000. Eyre Peninsula, the main part of Yorke Peninsula, Murray Mallee and Northern Agricultural Districts have been mapped at 1:100,000. Map unit boundaries should be treated as transition zones. |
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Geographic Extent
| Extent Name | Agricultural Region - South Australia |
| Min Easting or Longitude | 132.25 |
| Min Northing or Latitude | -38 |
| Max Easting or Longitude | 141 |
| Max Northing or Latitude | -32.25 |
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Dataset Status
| Initially Acquired | 01-JAN-2000 |
| Last Updated | 01-JUL-2009 |
| Update Frequency | As required |
| Maintenance Method | As required |
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| AusGOAL | CC BY (Attribution) |
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