Study on the Urban Expansion and Model of Lianyungang City Based on the Multi-temporal Remote Sensing Images

This study, selecting Lianyungang City as the object of study, the multi-temporal TM/ETM+ images as the main source of data, studied the temporal and spatial features and the model of urban expansion. The results indicated that between 1987and 2009 in Lianyungang, the expanding speed increased each year; the city center of Lianyungang moved northeast; there were the features of low urban compactness weak stabilization, high fractal dimension and too complicated edge of city. The analysis to the model of urban expansion indicated that the urban expansion was obviously bicentric, and take traffic roads as development axis. The two urban districts, Xinpu and Eastern districts of Lianyungang came closer. Therefore the expanding mode of Land use in Lianyungang showed distinctive expansion in the axial direction and Layered spread.