PROBLEM TO BE SOLVED: To provide a method for constructing a support for trees and a transplanter fixation tool using the construction method for a support which, when compared with the conventional technology, it is possible to fix the transplanter more reliably, and which can more suitably prevent the inclination of the transplanter relative to the vertical direction in the case where ground subsidence occurs or when a tilting force acts on the trees.SOLUTION: The method for constructing a support for trees by constructing a support for trees using a transplanter fixing tool for fixing a transplanter of a tree, is characterized by a transplanter fixing tool provided with a transplanter bottom fixing member capable of digging into the bottom portion of the transplanter, and maintains a state of the transplanter being fixed by the transplanter fixing tool, by the transplanter bottom fixing member digging into the bottom portion of the transplanter.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】従来の技術に比べて、根鉢をより確実に固定することができ、地盤沈下が生じた場合や樹木に傾倒力が作用する場合における、鉛直方向に対する根鉢の傾きをより好適に防止することができる樹木の支持施工方法と、その支持施工方法に用いる根鉢用固定用具を提供することを課題とする。 【解決手段】樹木の根鉢を固定する根鉢用固定用具を用いて樹木を支持施工する樹木の支持施工方法であって、前記根鉢の底部に食い込み可能な根鉢底部固定部材が前記根鉢用固定用具に具備され、該根鉢底部固定部材を前記根鉢の底部に食い込ませることによって、前記根鉢用固定用具によって根鉢が固定される状態を保持することを特徴とする。【選択図】図1