基于GIS的林木三维可视化分析技术

Forest 3D Visualization Analysis Technology Based on GIS

运用GIS组件技术,对空间结构分析与森林可视化系统进行了开发和优化。首先需要创建符合树木纹理贴图特征的三维树木模型;然后运用Voronoi图优化传统的森林空间结构指数运算方式;最后利用ArcGIS完成分析。研究结果表明,所开发的软件能为森林经营中的一些重大决策提供直观、精确的资料,可在一定程度上为常绿阔叶林等林业资源的保护以及经营管理提供帮助,促进林业的健康发展。

This paper used GIS component technology to optimize the spatial structure analysis and forest visualization system. Firstly, a 3D tree model which conformed to tree texture mapping was created. Secondly, the Voronoi diagram was introduced to forest spatial structure research in order to improve traditional calculation method of forest spatial structural index. Lastly, the ArcGIS engine was adopted to develop and establish spatial structure analysis and forest visualization system. The technologies and methods adopted in this research can provide visual and accurate information for decision-making of forest operations, and provide technical support and theoretical basis for protection, restoration and reforestation of evergreen broad-leaf forest, which will be consequently of great significance to forest sustainable operation.