林分空间结构可视化方法研究

A Methodological Study on the Visualization of Stand Spatial Structure

通过可视化方法对林分空间结构特征进行模拟,既真实的反映林分现实状态,又方便直观的为森林生产经营提供依据和指导。以河北省张家口桥东区油松林为研究对象,将分布格局中均匀分布、随机分布、聚集分布的特征与计算机图形学的几何特征相结合作为可视化参数,先通过聚集指数R判断分布格局,再依据3参数Weibull函数划分林木大小,对油松林的空间结构进行了初步的可视化实现,并建立了相应的植物形态特征数据库,取得了良好的效果。

The simulation of spatial structure of forest stand by visualization method can not only reflect the real state of stand, but also intuitively and easyly provide basis and guidance for forest management. Taking the Chinese pine stand in the east district of Zhangjiakou in Hebei Province as example, the special structure of the stand were preliminarily visualized, in which the combinations of the distribution pattern characteristics, including uniform distribution, random distribution, and aggregation distribution with computer graphics of the geometric features were used as visual parameter, firstly, judge the distribution pattern by the aggregation index R, and then divide the stand size by three-parameter Weibull function. Meanwhile, corresponding plant morphological characteristic database were established.