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在研究城市化进程时,基于DMSP/OLS夜间灯光数据获得的城市空间信息基本可以反映我国城市化发展的实际情况。以河南省为例,提取出2000-2012年的河南城市化空间信息,对河南省18个市级行政区的城市化空间扩张进行监测,分析城市空间扩张的格局变化及速率,得出影响城市空间扩张的因素并预测城市空间扩张的方向。
In studying the process of urbanization, urban spatial information based on DMSP / OLS nighttime light data can basically reflect the actual situation of urbanization in our country. Taking Henan Province as an example, this paper extracts the urbanization space information of Henan Province from 2000 to 2012, monitors the urbanization expansion of 18 municipal districts in Henan Province, analyzes the pattern change and the rate of urban space expansion, Expansion factors and predict the direction of expansion of urban space.