摘要
试以安塞、固原、长武、准格尔四个代表黄土高原不同类型区的小流域综合治理试验示范区为例,介绍了利用microBRIAN图象处理系统,从DTM中提取坡度、坡向等地形要素,以便于迭合分析,说明了DTM所提供的可靠的空间基础在地理信息系统中的重要作用。
The Digital Terrian Models(DTM)of four small watersheds located in Ansai,Changwu,Guyuan,and Zhungeer,which represent different landscape types in the Loess Plateau.have been established using micro BRIAN system, topographic elements,such as slope,landform,aspects,were extracted and classified.The results show that DTM can play a very important role in re- motely sensed data classification topography analysis in Geographic Information System.It can supply a reliable spatial base.
出处
《水土保持研究》
CSCD
1992年第2期96-100,共5页
Research of Soil and Water Conservation
