Increased soil salinity
Impact
Soil salinity refers to the presence of elevated levels of soluble salts, i.e. sodium chloride, magnesium and calcium sulfates and bicarbonates, in the soil. In some areas it is a natural phenomenon in the landscape due to soil formation and water movement (for example, in inland salt pans, brackish streams, coastal salt marshes and naturally saline soils). In other areas, increasing salinity is the result of particular land use practices, such as vegetation clearing, and unsuitable practices associated with urban development, irrigation or cultivation of crops and pastures. Affects can occur onsite or in low lying areas of the catchment.
Suggested indicators: Saline land*, Soil salinity*
Increased soil salinity may be associated with:
| Potential associated impacts | Suggested indicators |
| Reduced vegetation condition due to toxicity |
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Changed vegetation species composition |
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| Changed fauna habitat influencing diversity of terrestrail and aquatic species present |
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| Salinisation of previously fresh waterways |
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| Increased potential for soil erosion |
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| Increased potential for algal blooms |
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*Yet to be developed
Last updated: 27 August 2008