A single‐probe heat pulse method for estimating sap velocity in trees

What is it about?

The measurement of sap flow in trees is of paramount importance for many research fields including ecophysiology, forestry or agriculture. However, available techniques are still far from being simple, inexpensive and reliable enough to be used beyond very specific research purposes. In this work we propose and test a new method for estimating sap flow based on the use of simpler sensors. Our results show that the proposed method is reliable and presents significant advantages over current techniques. Hence, it could be considered a step forward towards developing user-friendly and cheap sap flow devices with potential for a wider range of research and practical purposes.

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