River channel over-enlargement due to erosion threatens to disconnect floodplain wetlands from vital overbank flows. Wetland disconnection diminishes the efficacy of environmental water entitlements and management actions aimed at supporting aquatic ecosystem functions and values. This project uses a novel geomorphological approach to channel analysis and stream-power modelling to determine channel-to-wetland connectivity, hotspots of erosion, and the trajectory of channel change affecting flow and inundation in the Macquarie Marshes and Gwydir Wetlands. Our validated, end-user focused assessment protocol aims to evaluate and reduce the risk of channel erosion and wetland disconnection as part of water and conservation decision-making across NSW.
|Effective start/end date||31/03/19 → 31/03/21|