基于GIS技术的大连旅顺口区地形起伏度测算研究

Measurement and Research of Relief Amplitude of Lǜshunkou District Based on GIS

依据地形起伏度研究的理论和方法,充分运用地理信息系统软件的分析功能和制图技术,以1∶50000DEM数据为基础,利用0.01km2的动态格网以街道为评价单元进行空间信息的处理和分析,计算大连旅顺口区的地形起伏度,制成地形起伏度专题地图,划分相应起伏区,分析得出旅顺口区局部地区地形起伏度较大,起伏度指数以中低值为主,并测算出各街道实际用地情况,为本区域经济发展和城市建设提供参考,也为区域制定科学的发展规划提供依据。

This paper fully used analytical function and cartographic technique of geographic information system software according to theory and method for relief amplitude research. On the basis of Ltishunkou District 1 ： 50000 data, proceeded processing and analysis of spatial information making use of 0.01km2 dynamic grid and township as statistical unit. The relief amplitude of Lushunkou District was extracted and thematic map was drawn and divided the relief amplitude region. A conclusion was reached through analysis of relief amplitude index and local fluctuation was bigger which mainly focused on middle and low value. Kinds of topographic relief area and corresponding land using situation in various villages and towns were measured. This measured data could be reference in aspects of economic development, urban construction and establishment of regional scientific development planning.