The model couples the transport of water to the leaves in the xylem and transport of assimilate products from the leaves together. The model can be used to predict xylem water potential, phloem turgor pressure and sugar content when transpiration and photosynthesis rates, soil water status and xylem and phloem hydraulic structure are given as inputs to the model. The model can be used to study the response of tree water and sugar relations, and exchange of substances between the tree and the surrounding environment in varying in environmental conditions and tree structures. Also other processes such as cavitation, stomatal control, and cambial growth have been integrated in to this framework.


Hölttä T., Mäkinen H., Nöjd P., A. Mäkelä, E. Nikinmaa2010. A physiological model of cambial growth. Tree Physiology 30, 1235-1252.

Mencuccini M., Hölttä T.2010. The significance of phloem transport for the speed of link between canopy photosynthesis and belowground respiration. New Phytologist. 185: 189-20.

Hölttä T., Cochard H., Nikinmaa E. & Mencuccini M.2009. Capacitive effect of cavitation in xylem conduits: results from a dynamic model. Plant, Cell & Environment 32, 10–21.

Hölttä T., Vesala T., Sevanto S., Perämäki M. and Nikinmaa E.2006. Modeling xylem and phloem water flows in trees according to cohesion theory and Münch hypothesis. Trees – Structure and Function. 20:67-78.

© 2020 A MarketPress.com Theme