Improving rail corridors by restoring native vegetation

Stabilisation of rail corridors can be achieved by selecting the appropriate plant species for local soil and site conditions. Revegetation with perennial native plants along rail corridors provides a bio-solution to engineering problems such as track instability due to waterlogging. Soils from five Victorian rail sites with problems due to heavy, cracking clays were tested for successful revegetation techniques. Native grasses have been demonstrated to improve soil structure solving drainage problems such as in the critical zone of track subgrade, as well as to reduce annual weeds and their high fire hazard. Greenhouse experiments and field trials proved that species selection should be matched to the soil type. Windmill grass (Chloris truncata) and two species of wallaby grass (Austrodanthonia spp.) germinated well at most sites, established stabilising root systems, and produced lower fire fuel than other species. Preliminary testing of the soil-plant requirements for stabilising corridors can help railways avoid inefficiencies and costly mistakes in rail corridor management.

Media Info

  • Pagination: pp. 203-209
  • Monograph Title: Rail achieving growth: CORE 2006: conference on railway engineering, 30 April-3 May 2006, Melbourne, Victoria, Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01517159
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Mar 4 2014 8:11PM