9 Southern Extent of salinity moderate with a low risk Low Improving Limited evidence Limited evidence of expansion because trends in or limited or limited groundwater levels are mostly falling. consensus consensus 10 South-eastern Salinity is extensive and will continue to Moderate Variable Limited evidence Adequate Zone of Ancient expand, albeit at a slower rate. Variable or limited evidence Drainage trends in groundwater levels, but water consensus and high level of levels in upland bores are still rising. consensus 11 South-western Salinity is extensive and likely to expand High Deteriorating Adequate Adequate Zone of Ancient because groundwater levels are mostly evidence evidence Drainage rising. and high level of and high level of consensus consensus 12 Southern Zone Salinity is extensive. Groundwater levels Moderate Stable Adequate Adequate of Rejuvenated are mostly stable. The risk is moderating as evidence evidence Drainage catchments approach equilibrium. and high level of and high level of consensus consensus 13 Eastern Darling Extent of salinity moderate, area of future Moderate Stable Adequate Adequate Range expansion minor. Trends in groundwater evidence evidence levels are mostly stable. and high level of and high level of consensus consensus 14 Western Extent of salinity with low risk of Low Improving Limited evidence Limited evidence Darling Range expansion because groundwater levels are or limited or limited mostly falling. Zone mostly forested. consensus consensus 15 Coastal Plain Extent of salinity very minor; future Low Stable Limited evidence Limited evidence development possible in the north, but with or limited or limited low impact. Mostly stable trends in consensus consensus groundwater levels. 16 Extent of salinity very minor and future Very low Unclear Limited evidence Limited evidence development is unlikely because the zone or limited or limited is at hydrological equilibrium. consensus consensus 17 Scott Coastal Extent of salinity very minor. Future Very low Unclear Limited evidence Limited evidence Plain development is unlikely because the zone or limited or limited is at hydrological equilibrium. consensus consensus
9 Southern Extent of salinity moderate with a low risk of expansion because trends in groundwater levels are mostly falling. Low Improving Limited evidence or limited consensus Limited evidence or limited consensus 10 South-eastern Zone of Ancient Drainage Salinity is extensive and will continue to expand, albeit at a slower rate. Variable trends in groundwater levels, but water levels in upland bores are still rising. Moderate Variable Limited evidence or limited consensus Adequate evidence and high level of consensus 11 South-western Zone of Ancient Drainage Salinity is extensive and likely to expand because groundwater levels are mostly rising. High Deteriorating Adequate evidence and high level of consensus Adequate evidence and high level of consensus 12 Southern Zone of Rejuvenated Drainage Salinity is extensive. Groundwater levels are mostly stable. The risk is moderating as catchments approach equilibrium. Moderate Stable Adequate evidence and high level of consensus Adequate evidence and high level of consensus 13 Eastern Darling Range Extent of salinity moderate, area of future expansion minor. Trends in groundwater levels are mostly stable. Moderate Stable Adequate evidence and high level of consensus Adequate evidence and high level of consensus 14 Western Darling Range Extent of salinity with low risk of expansion because groundwater levels are mostly falling. Zone mostly forested. Low Improving Limited evidence or limited consensus Limited evidence or limited consensus 15 Coastal Plain Extent of salinity very minor; future development possible in the north, but with low impact. Mostly stable trends in groundwater levels. Low Stable Limited evidence or limited consensus Limited evidence or limited consensus 16 Extent of salinity very minor and future development is unlikely because the zone is at hydrological equilibrium. Very low Unclear Limited evidence or limited consensus Limited evidence or limited consensus 17 Scott Coastal Plain Extent of salinity very minor. Future development is unlikely because the zone is at hydrological equilibrium. Very low Unclear Limited evidence or limited consensus Limited evidence or limited consensus
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