中文摘要：

自然环境中影响植物生长的主要因素是植物的内部生长特性和外部环境信息。提出了既考虑植物的内部生长特性又利用植物生长的外部环境信息的森林环境模型，即在开放的L．System的基础上应用外部光照原理来模拟森林植物的生长过程。重点解决了模型之间数据传输以及对模块的控制问题，并利用遗传算法对外部环境信息进行优化，尽量地避免了植物在空间位置上的交叉和遮盖。实验结果表明，采用光照模型原理建立的森林环境模型，很好地反映了森林生长的空间特性，充分体现了植物的趋光性和植物间的相互影响，真实地再现了森林的生长过程。

英文摘要：

The Internal growth characteristics and external environmental information of plants affect plant growth mostly in the natural environment. The forest-circumstance model was proposed based on both of internal growth characteristics and external environmental information of plants, that is, the growth of forest plants was simulated using principles of external light in an open L-System. The problems of data transmission between models and the control of module were solved, and moreover, the parameters generated by the environment with genetic algorithm were optimized and adjusted, to avoid the cross-cover of plants at space position, Experimental results show that the forest-circumstance model based on principle of illumination model reflects the space characteristic of forest grows well, and fully reflects the trend of plant light and the interaction between plants, truly reproduces growing process of forest.