Step 3: Reassess the purpose or objective
Things to think about
Once all of the information from Step 2 has been collated it is important to review and reassess the original objectives and outcomes. Use the 'things to think about' list above as a guide to establishing how viable the rehabilitation works may be and modify expectations and outcome accordingly.
Many local wetlands are changing and some of these changes result in irreversible impacts. Also proposed develops in or near the wetlands or climate change predictions may make rehabilitation actions effectively redundant. Reinstating original ecosystem, in cases where significant environmental change has occurred, may not be feasible or efficient. In some cases an appropriate solution may be to establish an alternative, ecosystems better suited to the changed conditions with clear links to the services it will provide.
For example where there has been irreversible physical (soil and water), biological or hydrological changes e.g. from saline to freshwater or low flow to high flow and rehabilitation of the site may include changing the wetland type. This style of rehabilitation has been labelled with many names in the past, but is often now referred to as 'conversion'. Whether a conversion would be considered ecological rehabilitation through hydrological or revegetation works, depends on there being a reasonable likelihood of achieving a viable local naturally occurring ecosystem.
Last updated: 10 September 2018
This page should be cited as:
Department of Environment and Science, Queensland (2018) Step 3: Reassess the purpose or objective, WetlandInfo website, accessed 13 May 2021. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/management/rehabilitation/step-3.html