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Report2022Open access

The heat dissipation method for sap flow measurements : background, functioning and construction

Gutierrez Lopez, Jose


In this manual I briefly describe the working principles of the heat dissipation method to estimate sap flow. I also included a step-by-step process for the construction of these sensors, using as reference the sensor design published by André Granier in (1985). The main goal for this manual is to disseminate key information regarding this method to students, researchers, and anyone interested in it. Please consider it an introduction, there is new research on the topic being publish continuously, and details become obsolete quite fast. There are also many details I am not discussing here. Read it all, and then make the necessary adjustments to your project.


heat dissipation; sap flow; tree transpiration

Published in

eISBN: 978-91-576-9981-7
Publisher: Department of Forest Ecology and Management, Swedish University of Agricultural Sciences