Using compost to restore degraded land in the Hawkesbury-Nepean Catchment
Summary
This project commenced in May 2005 with the objective of assessing the risk and evaluating the ability of compost prepared from aquatic weed (Salvinia molesta, Egeria densa and alligator weed (Alternanthera philoxeroides) harvested from the Hawkesbury-Nepean River to restore degraded areas of the catchment.
The compost process was validated to ensure that no weeds remained viable after composting. Rainfall simulations were also performed at CROA to measure treatment effects on runoff and soil erosion.
The outcomes of this project are being used to divert organic material from landfill, promote the reuse of recycled organics in catchment rehabilitation works and contribute to overcoming one of the factors which have led to aquatic weed outbreaks in the Hawkesbury-Nepean River.
Duration
2005-2006
Funding body
Department of Environment and Climate change NSW
Collaborating organisations
- NSW Department of Primary Industries
- Department of Environment and Climate Change NSW
- Hawkesbury-Nepean Catchment Management Authority
Project Leader
Dr Chris Dorahy
Elizabeth Macarthur Agricultural Institute, Menangle