摘要
介绍了利用地形图矢量化等高线制作DEM的过程以及利用坡面径流模型提取沟谷线的原理。借助GIS软件,以安徽境内的大别山区为例,完成了研究区的DEM建立与沟谷线的提取,并指出了研究结果的不足之处。
Producing DEM from vector contour map as well as using the principles of runoff model to extract ditch line were introduced in this paper. With the aid of GIS software and taking region of Dabie Mountain in Anhui Province as the example, the DEM was established and the gullies were extracted as well. At last, the deficiency of the findings was pointed out too.
出处
《山东农业科学》
2009年第5期21-23,59,共4页
Shandong Agricultural Sciences
基金
安徽省教育厅自然科学基金项目(编号:KJ2007B182)
