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本研究基于1989年、2001年和2007年TM/ETM+遥感影像,以RS和GIS技术为手段,从城市扩展强度、重心转移情况、紧凑度和分形维数等方面对哈大齐工业走廊中心城市即哈尔滨市、大庆市和齐齐哈尔市的城市扩展过程进行了对比分析。研究结果表明:①1989～2001年间,哈尔滨市、大庆市和齐齐哈尔市建设用地面积持续增加,扩展强度不断增强,2001～2007年间,哈尔滨市与齐齐哈尔市城市扩展强度有所增强,而大庆市则表现为下降的趋势;②1989～2007年间,哈尔滨市城市重心先向东南方向偏移,后向西北方向偏移,大庆市城市重心先向西北方向偏移,后向东北方向偏移,齐齐哈尔市城市重心则先向东南方向偏移,后向西南方向偏移;③哈尔滨市城市紧凑度表现为先减小后增大,分形维数先增大后减少,表明城市发展发生了转型,城市由原先复杂、不规则转向简单规则,大庆市城市紧凑度表现为不断增长,分形维数逐渐减少,表明城市规则简单,齐齐哈尔市城市紧凑度表现为先升后降,而分维数则先降后升,表明城市形态由简单到复杂,由规则到不规则;④政府政策是哈尔滨市城市扩展的最主要因素,资源分布则是大庆市城市扩展的最主要因素,而重工业分布则是齐齐哈尔市城市扩展的主导因素。
Based on the TM / ETM + remote sensing images of 1989, 2001 and 2007 and the RS and GIS technologies, this study analyzed the urbanization intensity, center of gravity shift, compactness and fractal dimension in the urban center of Ha Dazi Industrial Corridor That is, Harbin, Daqing and Qiqihar city expansion process for a comparative analysis. The results show that: ① From 1989 to 2001, the construction land area in Harbin, Daqing and Qiqihar continued to increase and the intensity of expansion continued to increase. From 2001 to 2007, the urban expansion intensity of Harbin and Qiqihar increased, while that of Daqing ② From 1989 to 2007, the urban center of gravity of Harbin shifted first to the southeast and then to the northwest, and the center of gravity of Daqing shifted to the northwest first and then to the northeast, and the center of gravity of the city of Qiqihar The first shift to the southeast direction and then the southwest direction shift; (3) The urban compactness of Harbin shows first decrease and then increase, the fractal dimension first increases and then decreases, indicating that the urban development has undergone a transformation, , Irregular rules to simple rules, Daqing City, the performance of urban compactness is increasing, the fractal dimension gradually decreased, indicating that the rules of the city is simple, Qiqihar city compact performance first and then decline, while the fractal dimension first dropped later, Indicating that the urban form from simple to complex, from rules to irregular; ④ government policy is the most important factor in Harbin’s urban expansion, the distribution of resources is Daqing The main factors of urban expansion, while heavy industry is the distribution of Qiqihar City extended the dominant factor.