Root stability evaluation with non-destructive techniques

Abstract

Due to their huge benefits when compared to invasive or destructive techniques, the use of non-destructive approaches is continuously increasing in many fields. The visual assessment method is commonly applied in tree inspection, but it has limitations. Investigations using appropriate non-destructive instruments can well complement visual tree inspection. This paper is a short overview that describes non-destructive techniques for evaluating the load-bearing capacity of individual trees' root systems. The techniques used are acoustic root detection and the pulling test. Safety factors were also calculated to provide a hazard assessment.