RT Journal Article SR Electronic T1 A Practical Guide to the Use of Steel Rods for the Assessment of Aeration in Urban Soils JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 289 OP 294 DO 10.48044/jauf.1993.046 VO 19 IS 5 A1 S. J. Hodge A1 K. Knott YR 1993 UL http://auf.isa-arbor.com/content/19/5/289.abstract AB Diagnosing the reason for poor performance of urban trees requires a means of evaluating soil physical conditions. Soil aeration status can be inferred from the corrosion of steel rods inserted into the ground. The technique is inexpensive, non-destructive and can provide information on the vertical distribution of anaerobic conditions. Practical aspects of the use of steel rods and their interpretation are described.