南充市建成区扩张遥感监测与分析

发布时间：2018-03-22 19:03

本文选题：南充市　切入点：目视解译　出处：《科技创新与应用》2016年14期 　论文类型：期刊论文

【摘要】：在多时相Landsat遥感数据的支持下,采用目视解译的方法分别对五个时相的南充市遥感影像进行建成区提取;通过对各时相建成区扩张强度和城市紧凑度的计算与南充市建成区扩张空间分异的研究,进一步分析建成区扩张形态。研究结果表明:南充市建成区在1988-2002年的前14年中,城市扩张强度小,城市紧凑度减小,城市主要向东北方向扩张,城市扩张不明显;在2002-2014年的后12年中城市扩张强度大,城市紧凑度先减小再增大,城市呈摊饼式向四周大幅度蔓延,城市扩张明显;在此基础上,从地形、政府政策、人口和经济因子进行城市扩张驱动力分析。得出:地形因子和政府政策对城市扩张方向起着一定的决定性作用;人口增长与经济发展对南充市建成区的扩张起着促进的作用,其中经济增长的促进作用更大。
[Abstract]:With the support of multitemporal Landsat remote sensing data, five temporal remote sensing images of Nanchong are extracted by visual interpretation. Through the calculation of the expansion intensity and the urban compactness of each phase and the study of the spatial differentiation of the expansion in Nanchong City, the paper further analyzes the expansion pattern of the built-up area. The results show that: during the first 14 years from 1988 to 2002, Nanchong built area was constructed in the first 14 years. The intensity of urban expansion is small, the degree of urban compactness decreases, the city mainly expands to the northeast, and the urban expansion is not obvious. In the latter 12 years of 2002-2014, the intensity of urban expansion is large, and the urban compactness decreases first and then increases. The city spread around the city in the form of a pie spread, and the city expanded obviously; on this basis, from the terrain to the government policy, It is concluded that the topographic factors and government policies play a decisive role in the direction of urban expansion, and that population growth and economic development play an important role in promoting the expansion of the built-up areas in Nanchong. Among them, the promotion function of economic growth is bigger.
【作者单位】：成都理工大学地球科学学院;成都理工大学地质灾害防治与地质环境保护国家重点实验室;成都理工大学油气藏地质及开发工程国家重点实验室;
【基金】：国土资源部地学空间信息技术重点实验室开放基金(KLGSIT2013-06) 教育厅基金:多源SAR遥感影像滑坡灾害检测关键技术研究联合资助
【分类号】：P237;TU984.113

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