摘要
地貌作为自然环境的重要组成要素,它对地表生态环境及各种自然资源的形成与分布具有重要作用。本研究针对澜沧江流域特殊的自然地理环境,应用GIS与遥感图像处理技术方法,通过对澜沧江流域1∶25万数字高程模型数据与地表覆盖遥感数据进行处理,提取流域有关坡度、坡向、地形起伏度等地貌特征要素,并进行定位表达与特征统计分析,结果获得了对流域地貌特征的定位与定量化的总体认识,研究成果直接为澜沧江流域水、土、生物、矿产等资源的综合开发利用,特别是为流域水资源的分配及其综合开发利用研究提供空间信息基础平台。
Morphology is one of the most important natural environment factors. With the development of GIS and RS techniques, Quantitative Morphologic Character Analysis advanced quickly. The paper takes the Lancang River basin as study area. Based the data collection of DEM and TM image, by technique apply of geographic information system and remote sensing image process system methods,Lancang River basin's morphological character parameters (such as slope, aspect, elevation etc.) and basic topography elements were distilled and mapped. Then physiognomy morphological character data were analyzed by statistics method application. As the result, integrated understand on Lancang River basin's natural character of location and quantity was achieved. The result also provided the necessary database for Lancang River basin's natural resources research and environment management in Yunnan mountain region.
出处
《云南地理环境研究》
2005年第4期1-5,共5页
Yunnan Geographic Environment Research
基金
国家"十五"科技攻关西部重大项目(2002BA901A22)
国家重点基础研究发展计划专题(2003CB415105)
云南省自然科学基金重点项目(2003C0002Z)
关键词
地貌形态特征
澜沧江流域
地理信息
数字高程模型(DEM)
physiognomy morphological character
Lancang River basin
geographic information
digital eleva- tion model
