利用SVS模型实现林分空间格局可视化方法初探

Discussion on Forest Stand Visualization by SVS Model

利用景观管理系统(Landscape Management System,LMS)软件工具包中的林分可视化系统(SVS)模块对刺槐林分空间格局的可视化过程进行了详细的分析,调整了现实林分空间格局状况,模拟出调整后的刺槐林分空间格局可视化图形。比较了SVS与传统林分空间格局测定方法的优劣。从SVS模拟调整林分空间格局的结果可以看出,调整后比调整前林冠分布的均匀度提高了45%。同时指出了引用国外林分空间格局可视化软件时存在的问题及其解决办法。

This article provided an overview of the research and development in 3-dimensional visualization of forest landscapes. It focused on past and present developments in stand visualization achieved by the USDA Forest Service, Pacific Northwest Research Station, particularly its research product landscape management system （LMS） software package. Using the stand visualization system （SVS） module incorporated in LMS, a locust forest stand was visualized and the process was thoroughly investigated. A modification of the stand spatial structure was simulated and the modified stand was 3-dimensionally visualized. This SVS method was then compared with the traditional measurement of forest stand structure, and pros and coils were discussed with both methods. The results showed that the uniformity of canopy distribution increased by 45% after the stand structural modification. In addition, the paper pointed to the limitations of using foreigh stand visualization software and discussed possible solutions to the problem.