摘要： 针对植物冠层内光分布计算过程中存在的计算复杂度大、耗时长等问题，提出一种快速深度缓存算法。采用动态选取光照投影平面和确定光照分布密度等方法，设计一套快速计算植物冠层光分布的模拟系统。应用该系统模拟水稻孕穗期冠层内的光分布情况，结果表明，该方法在保持原有算法精度的同时，能缩短计算时间。

关键词: 植物冠层, 辐射, 空间分布, 模型, 深度缓存

Abstract: The distribution of solar radiation is an important factor to the grouth of plant. In order to reduce the complexity and time-consuming in modeling the distribution of radiation in canopy, this paper aims to improve this model by changing the projection plane and making certain of the density of solar radiation. It uses a software based on advance to model the a boot stage paddy rice to evaluate the improvement, and results show that the advance model can provide the accuracy and reduce the complexity.

Key words: plant canopy, radiation, space distribution\ model, Z-buffer

中图分类号: 

• TP391.9