Recent Advances in Tree Root Mapping and Assessment Using Non-destructive Testing Methods: A Focus on Ground Penetrating Radar

Abstract

This paper provides an overview of the existing literature on the subject of the\xa0assessment and monitoring of tree roots and their interactions with the soil. An overview of tree root system architectures is given, and the main issues in terms of tree health and stability, as well as the impact of trees on the built environment, are discussed. An overview of the main destructive and non-destructive testing methods is\xa0presented, and\xa0a lack of available research-based outputs in the fields of tree root interconnectivity\xa0and soil interaction\xa0is highlighted. The effectiveness of non-destructive methods\xa0in these areas is demonstrated, in particular\xa0that of\xa0ground-penetrating radar. The paper references recent developments in estimating tree root mass density and health.