摘要
地形特征是人们用于描述空间过程变化的重要指标,地形特征的提取是进行测绘、资源调查、环境保护、农林种植、城市规划、灾害防治及地学调查等地理空间相关研究的基础。本研究以宁明县为例,利用高精度DEM进行数字地形分析,实现了高效快速、客观准确地提取地形特征参数,为后续涉及空间信息的研究奠定了基础。
The landform character is an important index to describe space transforming process,and the extraction of the landform character is the base for geographical researches,such as mapping,resource survey,environment protection,farming and forestry planting,city planning,disaster prevention and geosciences.High-resolution DEM is applied to the digital analysis of the terrain in Ningming county and parameters of the landform character are obtained efficiently and objectively,which establishes the base for further researches involved with geo-information.
出处
《测绘与空间地理信息》
2012年第1期33-36,共4页
Geomatics & Spatial Information Technology
基金
广西自然科学基金项目(0832073)资助
关键词
DEM
坡度
坡向
坡位
地貌类型
DEM
slope
slope aspect
slope position
physiognomy
