Material stiffness, branching pattern and soil matric potential affect the pullout resistance of model root systems

S. B. Mickovski, A. G. Bengough, M. F. Bransby, M. C. R. Davies, P. D. Hallett, R. Sonnenberg

Research output: Contribution to journalArticlepeer-review

141 Citations (Scopus)

Abstract

Understanding of the detailed mechanisms of how roots anchor in and reinforce soil is complicated by the variability and complexity of both materials. This study controlled material stiffness and architecture of root analogues, by using rubber and wood, and also employed real willow root segments, to investigate the effect on pullout resistance in wet and air-dry sand. The architecture of model roots included either no laterals (tap-root) or a single pair at two different locations (herringbone and dichotomous).
Original languageEnglish
Pages (from-to)1471-1481
Number of pages11
JournalEuropean Journal of Soil Science
Volume58
Issue number6
Early online date4 Sept 2007
DOIs
Publication statusPublished - Dec 2007

Keywords

  • soil reinforcement
  • pullout resistance
  • particle image velocimetry
  • model root systems

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