基于时序遥感影像的城市规模扩张研究——以重庆主城为例

Study on Spatial Expansion Patterns of Cities Based on RS Images:The Case of the Major Urban Areas of Chongqing

本文通过对城市规模的概念介绍,以及检测城市规模使用的技术方法,本文主要是利用1988,1996,2001,2007四年的TM时序遥感影像,对重庆主城区的城市规模扩展进行了监测,分析了自1988-2007年该区域用地规模的动态变化过程及时空特征。同时还对重庆城市用地的规模检测的结果进行了评价。评价结果表明,近二十年来,重庆主城区城市规模扩展迅速,并先后经历了"向西扩展"和"向北扩张"的两个阶段。

In this paper, by the introduction of the concept of city scale, and technical method for the detection of city scale, in this paper mainly by using TM temporal remote sensing images of 1988199620012007 to four years, the urban area of Chongqing city scale expansion were monitored, and the dynamic changes of 1988-2007 area with the size and spatial and temporal characteristics are analyzed. At the same time the scale of the result of detection is evaluated. The evaluation resnlts show that, in the past twenty years, urban area of Chongqing city scale expands rapidly, and has experienced two stages of ＂westward＂ and ＂northward＂.