Application of ERT method in monitoring tree water movement
Liu Han-le · Journal of Guilin University of Technology · 2006
Growing tree is used as the testing object.By arranging electrodes around the tree and using relation between electronic resistivity and water content,the moisture migration characteristic of the tree is discussed.Resistivity revision method in cylinder is proposed and the electronic resistivity estimation problem in cylinder is solved.When this method is applied to the revision of electronic resistivity in the tree,the result indicates that when rain occurs,water rapidly enters into xylem.As a result of the sudden change of water potential,the air bubble occurs in the pipe,while water in the trunk does not move in a face-shaped form,but there are corridors.