Canadian Forest Service Publications
Modélisation de la coulée de l'érable à sucre (Acer Saccharum Marsh.) À partir d'éléments météorologiques. 1980. Plamondon, A.P.; Bernier, P.Y. Can. J. For. Res. 10: 152-157.
Issued by: Laurentian Forestry Centre
Catalog ID: 27026
Availability: PDF (request by e-mail)
It has already been shown that a relation exists between the daily rate of spring sap flow and the twig temperature of sugar maple. The authors first develop a method to calculate this temperature from radiation, wind speed, and air temperature. For each sap flow cycle, the values of four factors controlling the phenomenon are determined: the number of hours and degree-hours below 0°C and above 0°C. Each factor is then converted into an efficiency function. The combination of the four functions gives the global efficiency of the climatic conditions for each sap flow cycle. The flows calculated from the global efficiency are strongly correlated (r = 0.94) with the measured ones.