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A mechanistic model of stomatal responses to environmental factors

Fu Wei, Wang Tianduo

Shanghai Institute of Plant Physiology, Chinese Academy of Sciences. Shanghai

Abstract

A steady-state model of stomatal responses to environmental factors (irraciance, temperature, VPD, CO_(2)and soil water potential)has been developed. behavior of this model match well with experimental observations in most cases; the simulated conductance deviates from the measured one when the cocentration of ambient CO_(2)is close to zero under high radiation, indicating that the treatment of the mechanism of CO_(2) on stomatal movement in the model should be improved. On the whole, the model can be used as a theoretical framework for the analysis of the behavior and underlying principles of stomatal movement and also for the prediction of transpiration rate for different combinations of the environmental variables.

Key words: Mathematical model;Steady saute;Radiation;Leaf temperature;Stomatal conductance

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Citing This Article：

Fu Wei, Wang Tianduo. A mechanistic model of stomatal responses to environmental factors. Acta Physiol Sin 1994; 46 (3): (in Chinese with English abstract).