植物共享光照资源的生长模型改进及可视化仿真

为了模拟共享光照资源情况下的植物生长情况,该文以FON(field-of-neighbo urhood)模型为基础,对影响圈从形状和阴影深浅程度两方面加以改进,提出了共享光照资源植物的一种生长建模方法。该方法引入了植物生长地的纬度值、植物遮光率因子以及植物自身对光的敏感特性等地理学和生物学参数,以更真实地模拟植物在共享光照资源时的生长规律。为了验证共享光照资源植物的生长建模方法的有效性,该文以生物量数据为基础对水曲柳和落叶松的人工混交林的生长情况进行试验结果比较与分析。此外,该文开发了支持共享光照资源的植物生长模拟系统,对不同植物在共享光照资源中所表现出的生长情况进行可视化模拟。仿真试验结果表明,共享光照资源植物的生长建模方法具有较好的准确性和实用性,可以用于实际植物的生长过程模拟。

Growth model improvement and visual simulation of plants sharing light resource

In order to simulate the growth of plants sharing light resource more realistically, a method of modeling the growth of plants sharing the sunlight in the same area was presented in this paper. Considering the aspects of shape and darkness degree, the model was developed based on FON model. Furthermore, some geographical and biologic factors were used in this method, such as the latitude value of the location of plants, shading rate, and the light sensitivity attribute of plants in order to more truly simulate the growth of plants sharing the sunlight. In order to verify the availability of this method, the biomass of the mixed forest for northeast China manchurian ash and larch was analyzed and compared based on the simulation result. In addition, a simulation system of plants sharing light resource was implemented which could simulate and visualize the growth phenomenon of the plants with different competition status. The simulation results showed that the method of modeling the growth of plants sharing the sunlight in the same area could simulate the plant growth accurately and be applied to the actual simulation of plant growth.