Costing water quality management for the Great Barrier Reef

Costing water quality management for the Great Barrier Reef

21.06.2016 - Posted by Steve Skull
Alluvium is currently leading a consortium to provide an assessment of the total costs for seven policy solution sets across a range of industries and GBR catchments to achieve the water quality targets (for fine sediment and Dissolved Inorganic Nitrogen) set out in the Reef 2050 Plan.  The project, entitled Costs of achieving the water quality targets for the Great Barrier Reef (DEHP 15044), is investigating the following solution sets:
 
1.      Land management practice change for cane and grazing
2.      Improved irrigation practices
3.      System repair: Gully remediation
4.      System repair: Streambank repair
5.      System repair: Wetland construction
6.      System repair: Changes to landuse
7.      Urban stormwater management
 
To assess the seven solution sets, the project is developing unique tools to quantify the overall efficacy of each scenario using existing Reef Source Catchment Model outputs. The project will then assess the load reductions for each of the management practice elements that underlie each scenario. Supporting this is the production of Cumulative Cost Curves to evaluate the cost effectiveness of each policy solution.
 
This is a highly innovative project and this costing has not been attempted before at a whole of GBR scale.  The tools being developed are intended to live beyond the life of the current project to test other policy solution sets (and combinations of solution sets) into the future.
 

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