| Location: | South Coast of Victoria |
| Traditional Owners: | Wadawurrung, Eastern Maar |
| Regional body: | Corangamite Catchment Management Authority |
| Area: | 13,500 (km2) |
| Catchments: | Moorabool River, Barwon River, Otway Coast, and Corangamite River. 33 sub-catchments. |
| Population centres: | Geelong, Ballarat, Lorne, Appollo Bay, Port Campbell |
| Local government areas: | Greater Geelong, Surf Coast, Colac Otway, Corangamite, Moorabool, Ballarat, Golden Plains |
| Domaint land uses: | Grazing (50%), Conservation (15%), Dryland cropping (14%) |
The Corangamite Natural Capital Region covers the south central Victorian coastal catchments from Barwon Heads to Port Campbell along the Great Ocean Road including the Great Otway National Park and north to Ballarat. The region stretches 160 km north to south and 140 km east to west. The highest point is Otway Ranges (630 m). Lake Corangamite (23,000 ha) is Australia’s largest permanent hypersaline terminal lake.
Dissolved inorganic nitrogen generated
tonnes per year
Fine sediment generated
kilotonnes per year
Woody vegetation cover
square kilometres
Riparian and wetland woody vegetation cover
square kilometres
Explore the current condition in the interactive condition report below – Click on a sub-catchment to view a report on the natural capital measures for that sub-catchment in the ‘report’ tab.
Choose the natural capital measures that are important to you – Select the ‘hotspot’ tab and check the indicators that are important to you. Then view measures that are aggregated and range standardised from the highest to the lowest value across the sub-catchments (red for worst and blue for best). By simultaneously considering multiple natural capital measures you can instantly see where the greatest opportunities for natural capital improvement are.
One of the most common uses of Natural Capital Region is to prioritise what to do and where to do it and to forecast the future natural capital condition under alternative nature repair investment programs.
The rapid scenario creation and running allows for the development of co-operative investment strategies that include the priorities of multiple partners (e.g. NRM organisations, federal government, state government and local government).
To facilitate this rapid scenario generation, Natural Capital Region includes region-specific libraries of tens of possible on-ground actions. Each action includes their effectiveness for improving natural capital outcomes, the cost per hectare of the action and the likelihood of adoption of each action.
To demonstrate, a simple investment scenario is embedded below.
| Budget: | $25,000,000 |
| Area: | All sub-catchments |
| Positive Actions: | Terrestrial and riparian revegetation nature repair and conservation actions (protecting remnant vegetation and native revegetation replanting) |
| Negative Actions: | Do not consider the implications of negative actions (eg. excluding impacts of ongoing clearing or urban expansion) |
| Maximum area per sub-catchment: | Set the maximum area for each action per sub-catchment as 10% of the available area for that action (spread the investment across several actions) |
| Adoption likelihood: | Use likely landholder adoption rates (includes total proportion of landholders and time to achieve adoption) |
| Priorities: | Prioritise based on water quality and biodiversity outcomes and actions that include high First Nations engagement |
Explore the scenario results spatially – Click sub-catchments on the map to see the cost breakdown over time and by sub-catchment.
Explore the marginal cost abatement – This shows where the rate of improvement vs cost starts to flatten off. Hover over the chart to see a breakdown of each suggested action by sub-catchment with the associated co-benefits of the action quantified.
Natural Capital Region forecasts a potential future state by considering alternative on-ground actions. A critical step in this process is compiling the data to establish the baseline condition for the region.
Metadata for the indicators (and groupings used in Action set up) included in the Corangamite (Victoria) instance of Natural Capital Region have been thoroughly documented.
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Truii acknowledges the Traditional Owners of Country throughout Australia. We pay our respects to Elders past, present and emerging.
