基于GIS的城市土地扩展研究——以安徽马鞍山市城区为例

Research on urban land expansion based on geographical information technology——Take Ma`anshan City as a case

城市扩展研究无论对于缄市理论研究还是对于城市管理都有重要参考价值;以马鞍山市城区为例来研究城市用地扩展规律;用地理信息系统的方法获取过去不同时相的城市实体范围和面积,分析了不同时段的城市扩展过程,发现马鞍山城市扩展速度具有阶段性,城市扩展具有明显的方向性;经济发展和人口增加是城市土地扩展的决定性因素;对其他与缄市扩展相关的因素也进行了分析。

Research on urban land expansion is useful for the research and manage of the city. Taking Ma`anshan City as a case, the paper discussed the rules of urban expansion, the authors get the area of the city entity in different period with geographical information technologe; analyzed the process of urban expansion, from the study the authors find that the urban expansion is obviously directional and with different speed in the last tens years; Analyzed the factors that cause the expansion of the city, the economy development and population increase are the crucial factors, at the same time, the authors also analyzed he rest factors relative to urban expansion.