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| | Abstract | | Non-destructive ways of diagnosing trees for assessing the health of trees are demanded. One of the interests is the investigation on tree root of which the exact locations help more thorough analysis with the minimum excavation and soil conditioning. A GPR system that measures its own position during the data acquisition with a self-tracking total station is developed and used for a tree root measurement. The system allows us to scan freely and the feature makes possible to scan around a tree trunk which is best suited for root measurements considering the antenna polarisation. The measurement on a platanus tree illustrates that the system can depict the overview of the underground root system. Further, picking reflections and mapping their locations can provide more detailed information on the root and surrounded subsurface, which is useful for tree diagnostics. |
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