Phosphorus binding clay
The Regional Estuaries Initiative is investigating the effectiveness of a newly developed clay that binds phosphorus making it unavailable for algae growth.
As part of the project, scientists are running several trials across the Peel-Harvey and Vasse-Wonnerup catchments in parallel with detailed laboratory testing. Trials in the Vasse-Wonnerup catchment are being carried out in partnership with Revitalising Geographe Waterways.
The aim is to:
- improve the clay manufacturing process
- investigate the effectiveness of clay treatment in different environments
- undertake a detailed risk assessment for large-scale clay application.
Trials have been completed in the Lower Vasse River (summer 2017–18 and summer 2018–19), Punrak Drain (October 2017) and the Lower Serpentine River (summer 2020).
- Better collaborative drainage management
- Brockman Park
- Capacity building
- Catchment modelling
- Catchment monitoring and condition
- Centennial Park Wetland
- Estuary modelling
- Estuary monitoring and condition
- Fencing and revegetation
- Fertiliser management program
- Fish Friendly Farms
- Garden fertiliser use in Leschenault Catchment
- Investment planning for catchment actions
- River health assessments
- Seagrass monitoring
- Soil amendments
- Z-Filter trial