WETLAND RESTORATION ON PRIVATE LAND CASE STUDY 3: BEAUFORT DISTRICT

In this, the third of our early works case studies, we review another completed Nature Glenelg Trust wetland restoration project on a property near Beaufort in Central Victoria.

This project was developed to aid the restoration of a five hectare swamp that occurs on a natural watercourse flowing into Fiery Creek.  The site provides important water storage in the local drainage network whilst also supporting a high quality remnant red-gum forest that creates important habitat for local bird populations.

Earthworks undertaken by previous owners that included channel excavation and the construction of levee embankments have caused significant modification to the natural wetland area.  Since purchasing the property the new owners had noticed changes occurring to the natural inundation zone of the swamp which had historically backed up into the standing red-gums. Concerned that the wetland area was impacted by these past works, the landholders were keen to engage with us to help find a possible solution and develop a remedial response to this issue. After preliminary assessments were undertaken we were able to identify that the recently excavated channels constructed by the previous owners had created a new subsurface drainage pathway for the surface water. The channel excavations had been cut through a shallow depth impervious clay layer in the natural soil structure, subsequently providing an exit route for the surface water to drain through a deeper deposited gravel bed, artificially hastening the loss of water from the wetland system.

On ground works were designed to reduce the depth of the excavated drainage channel by relining the channel bed to effectively reinstate the original confining clay layer. Suitable clay material was sourced on site and a local earthworks contractor was engaged to fill and re-line the drainage channels. To ensure that the capping material was suitably impervious, bentonite clay fines were integrated into the material to increase the sealing effectiveness of the bed material.

This Case Study is the third in a series to illustrate wetland restoration in practice, delivered through Nature Glenelg Trust’s Wetland Restoration Program on Private Land and funded by the Australian Government.

  • Long before Mt Vandyke, it was known as Banbangil. What else can cultural knowledge teach us about environmental history? August 31, 2021
    I have been pondering this question again lately, as I continue to come across interesting references in my travels, and the answer is – a lot! If you stop just for a moment and consider the sheer amount of time and number of generations that First Nations people have been present on this continent, and ...
  • Mt Vandyke project background – Let’s talk about conservation fences August 31, 2021
    Humans have been using fences to manage domesticated animals for thousands of years, but their use and form in more recent years has evolved considerably to the point that they are now a commonly used tool for conservation projects. While fences are not and never will be the sole answer in threatened species management, they are ...
  • Grampians remote monitoring – The wetlands fill as the fun begins! August 31, 2021
    At the end of July, Lachie and Tom met with an eager group of volunteers to complete the first round of data retrievals for our remote monitoring project in the Grampians. Field cameras and AudioMoth sound recorders had been deployed a month prior at various sites across Walker Swamp, Green Swamp, Gooseneck Swamp and Brady ...
  • A glimpse back to the good old days – early season upper Wannon River flows August 31, 2021
    In the south west of Victoria we are currently experiencing one of the wettest winters for a long time. Driving across the landscape, it has been quite revealing to see lots of wetlands showing their face, and many streams running at levels usually seen in a wet Spring. We’ve had a particular interest in the ...
  • Cultural burning to manage Themeda Grasslands of South Australia August 31, 2021
    Themeda grassland on the Burrungule railway line taken in 2000Native grasslands and grassy woodlands once sprawled across large areas of the South East of South Australia and western Victoria, generally on heavier soils and maintained by regular burning by First Nations people. After European colonisation of the region, these open grassy areas were immediately taken ...
  • Glenelg spiny freshwater crayfish back in the spotlight August 31, 2021
    The karst rising-springs (KRS) around Port MacDonnell represent an important but threatened ecosystem supporting a diverse range of flora and fauna, including the nationally endangered Glenelg Spiny Freshwater Crayfish Euastacus bispinosus and the nationally vulnerable Variegated Pygmy Perch Nannoperca variegata. In South Australia, Glenelg Spiny Crayfish occur exclusively within these habitats, which were recently recognised ...
  • Partnering with foresters, councils and sport clubs – NGT’s 2021 revegetation roll-out is nearly done! August 31, 2021
    The NGT planting crew has been busy with a range of revegetation projects through the winter. We began July with a small sea of native seedlings in the NGT nursery, and bit by bit they’ve gone out to new homes at restoration sites across the south east of SA and just into south west Victoria. ...
  • Aquatic species conservation and research update – Aquasave-NGT 2020/21 Year In Review August 31, 2021
    As long time readers of the Nature Glenelg Trust newsletter will know, a significant focus for our organisation is freshwater species conservation and research. These activities have been conducted under our ‘Aquasave-NGT’ banner since mid-2012, and continue the legacy of high quality aquatic research commenced by Dr Michael Hammer – who founded Aquasave approximately 20 ...
  • SA coastal events coming up! Nature Festival and Robe Holiday Program August 31, 2021
    South Australia’s Nature Festival is back for a second time, and this year NGT is taking part. The festival is 10 days of events, encounters, and experiences to celebrate our love of nature in South Australia, and there are events throughout the state. There are all sorts of activities – there’s really something for everyone! ...
  • Mt Vandyke update – we’re almost halfway there! July 22, 2021
    Since the previous update in June, we’ve seen the end of financial year come and go, and what a fantastic dent we have made in the land purchase loan for Mt Vandyke! A month ago we still had $185,609 to go, and this has now fallen even further to $143,406.When viewed as a proportion ...

Click here for the full list of project related blogs

No Comments

Sorry, the comment form is closed at this time.

X