基于多时相卫星影像滨海卫星新城扩张的时空特征分析——以上海临港新城为例

发布时间：2018-01-12 14:15

本文关键词：基于多时相卫星影像滨海卫星新城扩张的时空特征分析——以上海临港新城为例　出处：《上海国土资源》2015年04期 　论文类型：期刊论文

【摘要】：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18.745km~2,为2002年的2.12倍,2015年成建区面积较2009年增加24.945km~2,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。
[Abstract]:Based on multi-temporal Landsat satellite images, the direct comparison method based on pixel variation and the post-classification comparison method based on spectral classification are used (the classification accuracy is up to 85.83). The information of urban land use in three phases from 2002 to 2015 in Lingang New City was extracted and the changing characteristics of urban expansion were analyzed. The results showed that the area of the constructed area in 2009 was 18.745 km2 more than that in 2002. The area of the constructed area in 2015 increased by 24.945 km / m to 2 times than that of 2009, and was 0.9 times of that of 2009. The annual growth area is 1.33 times that of the previous stage. It is in the second stage of urban spatial expansion, and the development is relatively rapid. The single factor correlation analysis method is used. The correlation coefficient of economic factor and urban land area is slightly larger than that of population factor and urban land area, and there is a significant positive correlation between economic factor and urban land area. Policy is the driving factor of economic construction, so the driving force of the region is mainly reflected in the social and economic development under the influence of policy factors.
【作者单位】：上海海洋大学信息学院;
【基金】：山东省海洋生态环境与防灾减害重点实验室开放基金资助项目(2012011)
【分类号】：P237;F299.27
【正文快照】： 2001年,上海市提出构建市域多层多轴多核的城镇体系结构理念,规划在上海市中心城外建设11座新城,其中包括号称“上海的东南水上门户”的临港新城。作为上海东南角海岸线重点建设的海滨城市,它与上海市中心城有一定距离,自成一体,相对独立,但在生产、生活等方面又与中心城有着

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