A study of the forest landscape simulation method : Application of GIS and plant growth modeling.

(1)本研究将地理信息系统（GIS）与植物建模技术相结合，开发了模拟非常逼真的森林景观的方法。模拟采用了由GIS （TerraSoft）整理的真实森林数据和由AMAP （Landscape simulation system with plant modeling）建模的树木三维形态数据。在案例研究中，模拟了东京大学秩父实验林的森林景观。森林景观的模拟是通过以下步骤完成的。(a)利用DEM （Digital Elevation Model）对地形进行建模。(b)模拟每个树种和每个高度（年龄）的树木形状。(c)根据地理信息系统的信息在地形上分配树木。(d)绘制森林模型。(2)东京实验林的GIS数据由森林覆盖数据图、各覆盖层树木详细信息和DEM组成。模拟图像与照片的对比表明，对森林景观进行高精度模拟是可能的。(3)为记录森林视觉景观信息，开发了森林视频记录机器人，并将其投入实际应用。(4)将森林真实感计算机图形模拟电影、录制视频和部分研究结果数字化，并通过Internet直观地提供（URL: http://www.cyberfores.fr.a.u.-tokyo.ac.jp）。

(1) In the present study, the method of simulating very realisticforest landscape is developped by linking GIS (Geographic Information System) and plant modeling technique. The date of real forest which is organized by GIS (TerraSoft) and 3-D shape data of the trees which are modeled by AMAP (Landscape simulating system with plant modeling) are used in the simulation. In the case study, the forest landscape of Chichibu Experimental Forest of Tokyo University is simulated.Simulation of the forest landscape is done by following process.(a) Modeling the terrain from DEM (Digital Elevation Model).(b) Modeling the shapes of trees of each species and each height (age).(c) Allocating the trees on the terrain according to the information of GIS.(d) Rendering the forest model.(2) GIS data of Tokyo Experimental Forests consist of maps of forest cover data, detailed information about trees in each cover and DEM.Comparison of the simulated images and the photographs shows that highly precise simulation of the forest landscape is possible.(3) The forest video-recording robot have been developed for a record of the forest visual landscape information and put it to practical use.(4) The forest photo-realistic Computer Graphics simulation movie, recorded videos and some results of this study are digitized, and we made it possible to provide them intuitively through the Internet (URL http : //cyberforest.fr.a.u.-tokyo.ac.jp)