Preliminary Application of Ground-Penetrating Radar for Reconstruction of Root System Architecture in Moso Bamboo

Root system architecture (RSA) refers to the geometric features and topology of root system. Ground-penetrating radar (GPR) is a possible method RSA reconstruction. However, because not directly accessible by GPR, GPR-based reconstruction must be complemented manual connection points, resulting in limited accuracy. In this study, we used both GPR direct excavation obtain 3D coordinates (XYZ coordinates) diameters moso bamboo rhizomes on an orthogonal grid. A score function for selecting best-connected points was developed using rhizome diameter, depth, extension angle, measured line spacing, which then recover discrete points. Based recovered topology, reconstructed smoothing function. data, generally consistent with RSA, 78.13% correctly connected. The based data thus provided rough approximation errors arising due missing displacement. proposed algorithm reconstructing further enriches application ground-penetrating detection.