Experimental Evaluation of Several Key Factors Affecting Root Biomass Estimation by 1500 MHz Ground-Penetrating Radar. - John C. Bain; Frank P. Day; John R. Butnor (Remote. Sens., 2017)

Coupling Fine-Scale Root and Canopy Structure Using Ground-Based Remote Sensing. - Brady S. Hardiman; Christopher M. Gough; John R. Butnor; Gil Bohrer; Matteo Detto; Peter S. Curtis (Remote. Sens., 2017)

An Automatic Processing Framework for In Situ Determination of Ecohydrological Root Water Content by Ground-Penetrating Radar. - Xinbo Liu; Li Guo 015; Xihong Cui; John R. Butnor; Elizabeth W. Boyer; Dedi Yang; Jin Chen 001; Bihang Fan (IEEE Trans. Geosci. Remote. Sens., 2022)