以L系统演化理论为主要算法,将枝、叶和芽作为单位转化子,通过海龟几何变换,最终构建形成三维树木模型,进而可以方便快捷地计算出不同的树高层面上的叶面积指数和光斑,对于植物光和作用的研究有重要意义.结果表明,此模型具有一定的形态逼真性和运用价值,经扩展后可用于植物理论生物学和实验观测生物学的仿真研究.%Based on the evolution theory of L system as the main algorithm, the paper takes a branch, a leaf and a bud as a transformant unit with the Turtle Geometry interpretation, generates a 3 dimension tree model. Using this model can compute conveniently the Leaf Area Index(LAl)and the gap frequency in different levels through the change of tree height percentage. The LAI and gap frequency has great significance in the research of photosynthesis. The result shows that this model, which is produced by the evolution theory of L system, assumed morphology resemblance and had some practical value, can be used in the simulation research of plant theory biology and observatory biology after some extension.
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