植物夜间气孔导度理论与模拟研究

The Theory and Simulation Studies of Stomatal Conductance at Night

气孔是植物生理过程中的重要器官,对植物叶片气孔行为进行分析对模拟其生理生态过程、水文循环过程具有重要意义。传统理论认为植物在夜间气孔是关闭的,而越来越多的证据表明这种关闭并不是完全关闭,夜间气孔不完全关闭的现象可能广泛存在于植物界。针对以往的理论和研究没有完整地解释夜间气孔张开现象、夜间气孔导度以及其对各环境因子的响应的科学问题,对长期以来国内外关于夜间气候导度理论和模拟方面的研究成果进行综述,包括夜间气孔导度在时间尺度上的变化特征以及驱动夜间气孔行为的因素,并对气孔导度模型进行了分析。研究结果为植物蒸腾过程进行补充,有利于完整地了解植物整个水生理生态过程。今后的研究中,将侧重于时间尺度上的扩展以及相关模型模拟分析研究。

Stomata is an important organ in plant physiological process.It is important to analyze the stomatal behavior of plant leaves in order to simulate their physiological and ecological processes and hydrological cycles.Traditional theory thinks that the stomata of plants is closed,while more and more evidences show that the stomata is not completely shut down,and this phenomenon may exist widely in plant.Previous theories and researches have not fully explained the night stomatal conductance response to various environmental factors,and the relationships between them still have some obscure places.In this study,we then synthesized the recent developments and lessons in night stomatal conductance theory and simulation,including the change characteristics and driving factors of night stomatal conductance on the time scale,and analyzed the stomatal conductance model.Future research will focus on time scale expansion and related model simulation analysis.