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一个气孔对环境因子响应的机理性数学模型

傅伟, 王天铎

中科院上海植物生理研究所. 上海(200032)

摘要

在已知的气孔运动机理的基础上, 对现有的数学模型加以改进, 建立了除VPD、CO_(2) 和土壤水势的影响外, 还能模拟光照和温度等因子对气孔影响的数学模型。在不同组合的环境因子下模拟得到的结果与公认的实验观测结果基本一致。它可以作为研究气孔整 体行为的理论框架, 也可用于检验多种关于气孔运动的假设。图6表1

关键词： 数学模型; 稳态; 光照; 叶温; 气孔导度

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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引用本文：

傅伟, 王天铎. 一个气孔对环境因子响应的机理性数学模型[J]. 生理学报 1994; 46 (3): .

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