中国1:100万遥感地貌制图方法的试验——以南京幅(Ⅰ-50)为例  

Experiment on 1:1 000 000 Geomorphologic Mapping Method Based on RS and DEM in China

作　　者：张进平[1] 程维明[1] 王睿博[1] 龙恩[1] 张旸[1] 

机构地区：[1]中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101

出　　处：《地球信息科学》2005年第2期36-40,共5页Geo-information Science

基　　金：国家自然科学青年基金(40401048)国家自然科学杰出青年基金(40225004)

摘　　要：地貌是自然地域综合体的主导因素,与国民经济建设关系十分密切。本文在总结前人研究地貌及地貌制图的基础上,以LandsatETM、DEN和地貌图件为基础数据源,试验全国1:100万遥感地貌制图方法和技术(南京幅为例),即利用历史地貌图和ETM影像来更新地貌界线,制定制图流程和规范,并讨论遥感地貌制图的几个关键技术和问题,包括遥感影像地貌界线划分的比例尺确定、遥感影像上地表覆盖和地貌界线划分、地貌界线与DEM等高线关系以及遥感地貌自动化制图等,为编制全国1:100万地貌图奠定基础。In the vast domain of China, topographic and geomorphic conditions are quite varied. Geomorphology is one of the most main factors of physical geographical environment, and its maps have been widely used in the scientific research, economic construction, eco-environmental protection, education and military affairs etc. Modern geomorphology and its mapping started in 1950's. In the last 50 years, Chinese scholars made great progress in regional geomorphology, geomorphologic mapping and other branches of geomorphology, formed comparative integrated scientific system, finished and published lots of geomorphologic maps with the different scales and regions. However, only 15 sheets of geomorphologic maps (total 77 sheets, including land and ocean) with a scale of 1:1 000 000 were finished and compiled in 1980's, and field geomorphologic surveying was the main traditional mapping methodologies, some geomorphologic borderlines were not exact, which cannot satisfy the objective demands. With the development and application of technology and methodology based on Remote Sensing and GIS, lots of work can be finished in indoors. So, based on Landsat TM, DEM with a scale of 1:250 000 and lots of historic geomorphologic maps, this topic will try to research geomorphologic mapping method and technology with a scale of 1:1 000 000 using GIS and RS. Some parameters, such as slope, aspect, hillshade and watershed units are calculated from DEM, which can help distinguish from different landform and topographic units in the Landsat TM imageries. Some key problems, such as the relationship between land-cover and geomorphologic types, landform and countor lines, are discussed. The research is foundation for updating the geomorphologic borderline and finish all geomorphologic maps in with a scale of 1:1 000 000 by means of GIS and RS in the future.

关 键 词：遥感 地貌制图 地理信息系统 分类系统 

分 类 号：P283.8[天文地球—地图制图学与地理信息工程]