关键词: 森林场景模拟, 林分仿真, 树种建模, 树种参数采集, 二类调查, 东北林区

Abstract:

The implementation of the small-scale zoning and survey results of forest resources to the plot level has become the basic requirement for the modern management of forest resources.However,how should we make forest resources growing on the small-scale plots realistically “stand up” and be intuitive without going to the field? It is a technical problem that forest resource managers have always been concerned about.With the maturity of 3D geographic information management technology,virtual reality technology and massive data processing technology,tree species modeling and large-scale scene forest modeling research have emerged,but it is impossible to describe the multi-species parameters of tree species growth structure and shape characteristics.Most of these studies are stuck in the model efficiency.They are mainly applied to virtual animation scenarios,but cannot practically be applied to forestry production guidance practices.Based on the 50 tree species(including shrubs)in the field survey in Northeast China,we used Onyxtree modeling tools to carry out fine modeling of tree species,and used the forest resources planning and design survey results display platform in the key national forest areas in Inner Mongolia.The complex forest scenes are quickly displayed,and the dynamic consistency of important display features such as tree species,plant number,coverage,age structure,tree height,and undergrowth and field survey results are realized,and forest resources of key national forest areas in Inner Mongolia,China,are initially completed.

Key words: forest scene simulation, forest stand simulation, tree species modeling, tree species parameter collection, forest management inventory, northeast forest area