基于组件GIS的森林景观四维可视化系统的构架研究

针对森林分布广阔、林木生长周期长、调查费时费力、更新困难的特点,作者设计了基于组件GIS的森林景观四维可视化系统(FLFVS).该文首先介绍了FLFVS建设的必要性及可能性,然后重点阐述了该系统的功能、集成框架和关键实现技术,及其在北京市房山区森林资源经营管理中的初步应用.该系统不仅可以实现森林资源动态管理,结合树木生长模型,三维动态地表示林分生长过程,而且可以在三维虚拟场景中模拟森林的经营和管理措施,包括抚育间伐、更新造林等,动态直观地表示森林经营的结果,为森林经营决策服务.

Research and implementation of forest landscape four-dimensional visual system based on ComGIS.

Forest landscape four-dimensional visual system(FLFVS) based on COMGIS was designed aiming at the forest characteristics: the broad distribution,the long growth cycle,the time-consuming and trouble-taking investigation and the difficult renew.This paper analyzes the necessity and feasibility of the FLFVS firstly, then it explains the system's function,integrated framework and key technologies.It also presents the primary implementation of the framework in the forest management in Fangshan District of Beijing.The implementation of this system not only realize the forest resources dynamic management,express stand growing process in three dimensions,but simulate forest management in a three dimensional hypothesized scene,such as tending felling,and regeneration.The authors conclude that FLFVS can exhibit the results of the forest management directly and dynamically and serve for the forest management decision.