The root reinforcement potential of four species of native Australian tree as determined by analysis of their root system architecture is described. The four species are Casuarina glauca, Eucalyptus elata, Eucalyptus amplifolia, and Acacia floribunda and they display marked inter-species differences in both the extent and the type of root systems that they possess. Eucalyptus amplifolia is potentially the most effective earth-reinforcing species due to the relatively large diameter and length of both its vertical and lateral roots in comparison to the size of the above-ground tree. Average maximum rooting depths as a percentage of tree height were over 100% for E. amplifolia, compared to around 41-45% for the other three species. E. amplifolia also had the most even distribution of roots in the lateral direction ensuring greater reinforcement potential further from the tree stem.
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机译：描述了通过分析其根系体系结构确定的四种澳大利亚本土树种的根加强潜力。这四个物种是木麻黄（Casuarina glauca），桉树（Eucalyptus elata），两叶桉（Eucalyptus amplifolia）和金合欢（Acacia floribunda），它们在根系的范围和类型上都表现出明显的种间差异。由于与垂直树的大小相比，其垂直和侧根的直径和长度都比较大，所以桉树可能是最有效的地球加固物种。棉铃虫的平均最大生根深度占树高的百分比超过100％，而其他三个物种的平均最大生根深度约为41-45％。 E. amplifolia在横向上还具有最均匀的根部分布，从而确保了距树茎较远的地方具有更大的增强潜力。
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