赣江源省级自然保护区三维地形建模技术及其应用探讨

Application of Three-dimensional Terrain Modeling Technology of Gan Jiang Yuan Provincial Nature Reserve

赣江源地区独特的地理位置决定了其是鄱阳湖生态经济区中的水源涵养、生态保护的核心区和重点区域,具有重要的研究价值.通过纸质地形图建立研究区的数字高程模型,再利用计算机仿真学原理将赣江源地区的ETM＋数据作为三维表面的纹理信息,将数字高程模型（DEM）与其进行叠加实现了赣江源省级自然保护区的三维地形可视化并探讨了其应用.

The unique geographical position of Gan Jiang Yuan,which has a significant value for researching,makes it become the core region and key areas of the water conservation and ecological protection in Poyang Lake Ecological Economic Zone.Using papery terrain map,DEM data of the researching region was created.Based on texture information of the 3D surface from ETM＋ image,then image and DEM data were overlapped to create three-dimensional terrain modeling and visualization of Gan Jiang Yuan Provincial Nature Reserve and its Application.