Modelling unseen flow pathways of water and contaminants in the Wet Tropics: the role of alluvial palaeochannels (Old ID 27748)

Principal Investigator

Approximately 50% of nitrogen loss from agricultural landscapes in the Wet Tropics occurs via subsurface flow pathways. We know little about the partitioning of subsurface flows, especially through palaeochannels where field evidence shows them to be zones of preferential pathways of water movement and likely nutrients. This project, led by JCU, seeks to develop an adequate understanding of the role palaeochannels play in subsurface flow movement. We then make recommendations to the modelling community on how to model these landscapes better in order to guide intervention measures (e.g. bioreactors, constructed wetlands) to reduce nutrient release into environmentally sensitive coastal areas (GBR).

01 Jul 2022 - 01 Aug 2023

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