Abstract
We measured sap flow in the tree trunk and the root of a Magnolia grandiflora tree and were able to record water movement attributes both before transplanting, during the preparation stages, and after the transplanting work was completed. The compensation heat pulse method was applied for measurements of sap flow in trunk. An improved heat pulse method, the heat ratio method (HRM) was used to measure sap flow in the largest lateral root exposed on the surface. The highest rate of sap flow was recorded in July, 4 months after girdling. Sap flow decreased gradually from this point. Accurate measurement of sap flow movement before and after root preparation and transplanting allows us to predict transplant success or failure. The greater sensitivity of the simpler HRM makes it a more effective tool than the heat pulse method.
