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Acid Sulfate Soil Risk Data


This data and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied.

This project has mapped the occurrence of Acid Sulfate Soils (ASS) along the coast of NSW and provides information that will assist land management and rehabilitation. In their natural state, these soils are submerged but when exposed or drained, they become oxidised and sulphuric acid is produced. This reduces soil fertility, kills vegetation and reduces fish populations. The identification of the location and extent of potential acid sulphate soils (PASS) is the essential first step in managing this problem. 128 map sheets were mapped for risk of occurrence of ASS at a scale of 1:25,000. This project was co-funded by the Natural Resources Audit Council (NRAC), and was revised in 1997.

Dataset History

The maps predict the distribution of Acid Sulfate Soils (ASS) based on an assessment of the geomorphic environment. This assessment has involved mapping of the environments in which they are likely to be found, being the coastal lowlands up to approximately 10m AHD and carrying out fieldwork to establish field relationships between landform, elevation and occurrence of ASS. Landform elements were used as the basic mapping unit. These provide a basis for land use planning and allow the application of elevation classes so that the depth of occurrence of ASS within a landform element can be estimated. It allows the prediction of soil management problems in other areas with similar landform and soil characteristics. ASS maps are not intended to provide site specific ASS information. The information derived from the maps cannot be used in the assessment of the potential to effectively manage ASS in a particular development. When using ASS maps, it must always be remembered that that there can be expected to be extreme variations in the nature and distribution of of ASS and that the depth to the ASS layer can be highly variable. The depths given in the map key should be used as a guide only and not used for a specific assessment of development potential. It is recommended that all land use activities likely to disturb ASS require appropriate soil investigations and a management plan to avoid environmental degradation.Metadata imported.C:\Program Files\ArcGIS\Metadata\ANZMeta\Thesaurus\temp.xml2008090911100000Metadata imported.D:\SDC\metadata\NSW_ACIDRISK.xml2008090911125700

Dataset Citation

NSW - Department of Environment and Heritage (2010) Acid Sulfate Soil Risk Data. Bioregional Assessment Source Dataset. Viewed 07 April 2016, http://data.bioregionalassessments.gov.au/dataset/8209e37a-5f5e-4d07-bd54-851ce1167797.

Data and Resources

Additional Info

Field Value
Title Acid Sulfate Soil Risk Data
Type Dataset
Language eng
Licence Creative Commons Attribution 3.0 Australia http://creativecommons.org/licenses/by/3.0/au/ (c) Office of Environment and Heritage NSW
Data Status active
Update Frequency never
Landing Page https://data.gov.au/data/dataset/08eb0b0f-fef1-4d99-a7da-84251a428867
Date Published 2016-03-23
Date Updated 2022-04-13
Contact Point
Bioregional Assessment Program
Temporal Coverage 2016-03-23 00:00:00
Geospatial Coverage POLYGON ((153.6355 -37.47131, 153.6355 -28.15854, 149.8273 -28.15854, 149.8273 -37.47131, 153.6355 -37.47131))
Jurisdiction NONE
Data Portal data.gov.au
Publisher/Agency Bioregional Assessment Program