CAJ | 학술논문

基于多时相Landsat卫星影像，综合运用基于像元变化的直接比较法和基于光谱分类的分类后比较法（分类精度达85.83%），提取出临港新城2002~2015年三个时相的城镇用地信息，分析城市扩张的变化特征，并通过相关社会经济统计资料对城市扩张的驱动因子进行相关研究。结果表明，2009年成建区面积比2002年增加18.745km2，为2002年的2.12倍，2015年成建区面积较2009年增加24.945km2，为2009年的0.9倍，年增长面积是前一阶段的1.33倍，处于城市空间扩张的第二大阶段，发展较为快速。运用单一因子相关分析法，计算得到经济因子和城镇用地面积的相关系数略大于人口因子与城镇用地面积的相关系数，且均与城镇用地面积成显著的正相关，而政策作为经济建设的导向推动因子，因此认为该区域驱动力主要表现在政策因素作用下的社会经济发展。
기우다시상Landsat위성영상，종합운용기우상원변화적직접비교법화기우광보분류적분류후비교법（분류정도체85.83%），제취출림항신성2002~2015년삼개시상적성진용지신식，분석성시확장적변화특정，병통과상관사회경제통계자료대성시확장적구동인자진행상관연구。결과표명，2009년성건구면적비2002년증가18.745km2，위2002년적2.12배，2015년성건구면적교2009년증가24.945km2，위2009년적0.9배，년증장면적시전일계단적1.33배，처우성시공간확장적제이대계단，발전교위쾌속。운용단일인자상관분석법，계산득도경제인자화성진용지면적적상관계수략대우인구인자여성진용지면적적상관계수，차균여성진용지면적성현저적정상관，이정책작위경제건설적도향추동인자，인차인위해구역구동력주요표현재정책인소작용하적사회경제발전。
Multi-dimensional Landsat data analyses (a direct comparison method based on pixel changes and a post-classiifcation comparison method based on spectral classiifcation, with a classiifcation accuracy of 85.83%) were used to assess development of a new satelite city, Lingang New City, in Shanghai, by detecting urban land use patterns over the period 2002–2015; the data were extracted from Thematic Mapper (TM) images. According to the results, the developed area increased by 2.12 times (by 18.745 km2) from 2002 to 2009, and by 0.9 times (by 24.945 km2) from 2009 to 2015, representing a 1.33 times increase between the two growth stages (2002–2009 and 2009–2015), and thus representing a period of rapid urban expansion. The study was conducted to identify the driving factors of urban expansion, by showing relationships between growth and social and economic statistics. As policies provide the overall guide for economic development, the driving forces in the region were considered to be social and economic factors, operating under the policy factor.