黄土地貌大比例尺数字化测图探讨  

Discussion on Large Scale Digitized Mapping of Loess Landform

作　　者：赵鹏全 孙昌民 

机构地区：[1]内蒙古地质测绘院,内蒙古呼和浩特010020 [2]内蒙古第六地质矿产勘查开发院,内蒙古海拉尔021008

出　　处：《地矿测绘》2011年第1期41-43,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：分析了黄土地貌的类型,探讨了黄土地貌地形特征、大比例尺数字化测绘和黄土地貌的表示方法,得出黄土沟谷地是大比例尺数字化测图的重点和难点,应区分测区内的沟谷类型,根据测图比例尺和测图等高距确定黄土地貌的综合取舍原则和表示方法,灵活使用测量仪器,并与传统的测记法和方向描绘法相结合,才能够提高黄土地貌地形图的精度。This article analyzes loess landform type,discusses the terrain feature and the expression method of loess landform in digitized mapping.The article considers that loess landform ravine is the emphases and difficulty of large scale digitized mapping,and that would distinguish the ravine types,according to the scale of mapping and the contour interval to determine synthesis accept and reject principia and expression method,and applies measuring instrument,traditional measuring notation and direction method of portrayal to enhance the precision of loess landform topographic map.

关 键 词：黄土地貌 沟缘线 合水线 测记法 方向描绘法 

分 类 号：P231.5[天文地球—摄影测量与遥感]