Abstract
We measured heat pulse velocity in the trunk of Magnolia grandiflora L. for four years after transplantation. Sap movement estimated by the heat pulse method increased over time. This finding was supported by measurement of sap flux using Granier method. Focusing on the velocity distribution in the trunk, the increasing trend in outer sap flow after the transplantation was far greater than that in inner sap flow. Leaf area of the canopy just before the transplantation and dropped leaf area after four years was almost the same volume, clearly indicating the expansion of total leaf area. We also observed the obvious root expansion with soil surveying methods. Measured increase of the sap flow are consistant with tree growth. This confirms that sap flow measurement is a valuable tool for the growth diagnosis of a transplanted tree.
