This presentation is based on research by Susan Bendel that focused on the interaction of roots from Eucalyptus leucoxylon, Lophostemon confertus, Callistemon salignus, Allocasuarina littoralis, Acer palmatum and Pyrus calleryana with stormwater pipes. The pipes had cracks of 0.04mm, 0.66mm and 1.48mm cut along their upper surfaces. There was no significant difference in the mass of roots in the pipes for the two larger crack widths. A second experiment using Eucalyptus leucoxylon, Melaleuca ericifolia, Ficus macrophylla and Salix fragilis found that a synthetic stormwater solution significantly increased growth compared with potable water. In this experiment tree roots were able to grow through holes of 0.5 mm diameter.
Dr Greg Moore OAM
Senior Research Associate of Burnley College, University of Melbourne was Principal of Burnley from 1988 to 2007, and Head of the School of Resource Management at the University from 2002 to 2007.
With a general interest in horticultural plant science, revegetation and ecology, Greg is particularly interested in arboriculture. He was inaugural president of the International Society of Arboriculture, Australian Chapter, and has been a member of the National Trust’s Register of Significant Trees since 1988 and chair since 1996. He has served the boards of Greening Australia (Victoria) 1988-2012 and Trust for Nature, 2009-17. He has been on the board of TREENET (chair 2005-2019) and is on the board of Sustainable Gardening Australia. He has written three books, seven book chapters and has published over 200 scientific papers and articles. He was awarded an OAM in 2017 for services to the environment, particularly arboriculture.