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@LocalEcologist John Butnor w US Forest Service has done a lot of GPR work in forests, more focused on quantifying biomass than mapping. https://t.co/HwZ6QeyHRH
@LocalEcologist John Butnor w US Forest Service has done a lot of GPR work in forests, more focused on quantifying biomass than mapping. https://t.co/HwZ6QeyHRH