Research on Tree Growth Models and Visual Simulation Technology

In this paper, taking into account the climate factors, site conditions and tree physiological characteristics, which impact on the biomass ratios of the root, stem, and leaves, the tree growth model was established according to the physiological processes. Take the Cunninghamia Lanceolata as example, comparing the simulating heights and DBH with observed data, the results showed that the R-squares were bigger than 0.85. Based on the improvements of the IFS method, combining the simulating data, we simulate the growth of Cunninghamia Lanceolata using DirectX9.0 software platform and C# programming language.