摘要
以ASTER GDEM 30m DEM为基础数据提取贵州省六盘水市地表坡度、坡向、地形起伏度、地表切割深度等地形特征要素,并结合特征统计分析对该地区地貌特征进行定量分析。结果表明六盘水地区坡度在0°～88°范围内都有分布,但相对集中在5°～25;°南北坡坡向面积相差不多,分布相对均衡;中部地区地形起伏度较大,最大处达到922m,地形切割深度最大值为627m。上述结论为研究区的农业规划、水土流失、土壤侵蚀、地质灾害、生态保护等研究提供了新的空间信息平台。
This paper collects the characteristic elements of the slope,aspect,hypsography and the surface cutting depth of Liupanshui region based on ASTER GDEM 30mDEM data and quantitatively analyzes the topographic features of Liupanshui region combined with statistical analysis.The results show that the slope is the 0 ° ～ 88 °,and relatively concentrated in the 5 ° ～ 25 °;the area of north-south slope aspect is almost the same,and has a relatively balanced distribution;the hypsography of central terrain is greater,and reaches the maximum 922m,and the terrain maximum cutting depth is 627m.The conclusion provides a new spatial information platform for the urban construction,industrial development,agricultural planning,soil erosion,geological hazards and ecological protection of Liupanshui region.
出处
《贵州师范学院学报》
2011年第6期26-29,共4页
Journal of Guizhou Education University
基金
贵州省教育厅自然科学研究项目(黔教科2010098)
六盘水师范学院科研基金项目(200907
lpssy201104)
关键词
数字高程模型
地貌特征
地理信息系统
地形因子
digital elevation model（DEM）
topographic feature
geographic information system（GIS）
topographic factors
作者简介
张勇荣（1982-），女，硕士，讲师，从事遥感与地理信息系统研究。
