Ground-penetrating radar
The Problem
As the challenge conservation x states, two newly discovered invasive fungal pathogens are killing hundreds of thousands of ʻŌhiʻa trees (Metrosideros polymorpha) on Hawaii island. The reason is the ROD fungus is an invisible killer, many ʻŌhiʻa trees are found in remote sites or challenging terrain and being able to reach such sites is difficult.
Our Proposal
According to http://faculty.geog.utoronto.ca/Chen/webdata/papers_forJing201501/Plant_Soil_2009_Hirano.pdf , It has been reported that ground-penetrating radar (GPR) is a nondestructive tool that can be used to detect coarse roots in forest soils. However, successful GPR application for root detection has been site-specific and numerous factors can interfere with the resolution of the roots. We evaluated the effects of root diameter, root volumetric water content, and vertical and horizontal intervals between roots on the root detection of Cryptomeria japonica in sand using 900-MHz GPR. We found that roots greater than 19 mm in diameter were clearly detected. Roots having high volumetric water content were easily detected, but roots with less than 20% water content were not detected. Two roots that were located closely together were not individually distinguished. These results confirm that root diameter, root water content, and intervals between roots are important factors when using GPR for root detection and that these factors lead to an underestimation of root biomass. That means GPR can detect tree that has more water and less water. Since the ROD infected Ohi'a tree have less water it is likely that the GPR will detect it and that can be used as a device to detect the ROD fungus.
We Assume that...
I am assuming that ground-penetrating radar (GPR) will function the same as the body of the tree as it functions on the roots.
Constraints to Overcome
The inability of land managers to detect the ROD fungus at early stages of infection in trees and elsewhere in the environment presents a unique challenge. This challenge is compounded by the vast landscapes on which ʻŌhiʻa trees reside, including remote and often steep areas not easily accessible by foot or vehicle. To address this challenge head on, it is critically important to develop tools that enhance the detection of ROD.
Current Work
currently, I have managed to come up with a good solution and the next step will be testing the theory.
Current Needs
I need collaboration and funding to test the theory.