Riparian land, found at the interface between terrestrial and aquatic ecosystems, can support a diverse range of native plants and animals. It also provides important ecological functions including: improving water quality by filtering nutrients, pollutants and sediments; stabilising banks; and providing food and habitat for animals. Riparian land is frequently degraded by clearing, invasive plants and livestock grazing. Government agencies invest significant resources to carry out riparian management actions, or ‘interventions’, to prevent degradation or to improve the condition of our waterways.

The Riparian Intervention Monitoring Program (RIMP) is a statewide, long-term program developed by DELWP that aims to assesses the impact and effectiveness of riparian management. RIMP examines three common management interventions: 1. weed control, 2. replanting of native vegetation and 3. fencing to restrict livestock access. These interventions are usually undertaken to improve riparian vegetation condition or to manage bank erosion.

ARI is working with Catchment Management Authorities (CMAs), landholders and botanists to establish monitoring sites on riparian land to assess changes in vegetation condition and bank stability attributes in response to these interventions. Sites are being monitored before, and several times after, interventions are undertaken.

The flower of the aquatic Water Plantain

Surveying bank stability

RIMP began in 2014 and is expected to continue until 2024. The knowledge generated by the program will help identify ways we can improve the effectiveness and efficiency of management interventions and better target future investment.

For more information contact: kaylene.morris@delwp.vic.gov.au

Some early results that show encouraging improvements in riparian condition following management, and more information about RIMP are detailed in the fact sheets below:

RIMP represents one approach to gather evidence to support management decisions developed under the Victorian Riparian Research and Monitoring Program (VRRMP); see the fact sheet below for more information:

For more information on DELWP’s management of riparian land see the Water and Catchments pages.