中文摘要：

以生长中的树木为研究对象，通过在树干布置电极，利用电阻率与含水量之间的关系，探讨了树干中水份的运移特性．提出了针对圆柱体的电阻率修正方法，以解决圆柱体中电阻率计算问题，并将该方法应用于对树干电阻率的修正．结果表明，在降雨发生时，水份迅速进入亏空的木质部导管，由于水势突变，导管内会有气泡的产生．水分在树干中的传输并非呈面状推进，而是存在优势通道．

英文摘要：

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 corridols.