甘肃省地级城市空间扩展变化研究

Study on the prefecture-level cities spatial expansion in Gansu Province

文中以甘肃省地级城市为研究对象,选取2000年、2017年两个时相航空航天影像作为主要数据源,并结合多种专业资料,利用RS监测与GIS空间分析技术,提取甘肃省地级城市2000年、2017年城市边界信息,以期揭示甘肃省地级城市近年来城市空间扩展状况,把握城市扩展规律,为城镇化建设、城市规划与设计提供重要的参考依据。

In the paper, taking the prefecture-level cities of Gansu Province as the research object, two time-phase aerospace images in 2000 and 2017 were selected as the main data sources, and combining with various professional data, urban boundary information of prefecture-level cities in Gansu Province in 2000 and 2017 was extracted using RS monitoring and GIS spatial analysis techniques to reveal the urban spatial expansion of prefecture-level cities in Gansu Province in recent years, and grasp the law of urban expansion providing an important reference for urbanization, urban planning and design.