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准确判别城市扩展规律、剖析演化过程,对于预测城市未来演化趋势、制定合理的调控政策具有重要的意义。本文以1989年TM、2000年ETM+、2009年TM影像为依据,应用RS和GIS手段提取了山东半岛北部烟台市城市群的实体边界,分析了烟台地区1989年-2009年间城市扩展的面积、方向以及城市扩展的导向规律。研究结果表明:烟台市城市群在近20年一直处于城市扩展的快速发展阶段,并受到地形、临港产业、交通干线以及政府调控等方面的影响。
Accurately determining the law of urban expansion and analyzing the evolutionary process are of great significance for predicting the urban future evolution trend and formulating a reasonable regulatory policy. Based on the 1989 TM, 2000 ETM + and 2009 TM images, this paper extracts the physical boundary of the urban agglomeration of Yantai City in the northern part of Shandong Peninsula by means of RS and GIS, and analyzes the area and direction of urban expansion in Yantai from 1989 to 2009 As well as the guiding principle of urban expansion. The results show that the urban agglomeration in Yantai City has been in a rapid development stage of urban expansion for nearly 20 years and has been affected by topography, port industry, transportation routes, and government regulation and control.