21 century is the century of the city, city development has become the theme of world development. The developed countries have entered the advanced stage of urbanization. The world's population and accounts for 2/3 of most developing countries is at the preliminary stage of urbanization. So the developing countries urbanization, especially for the city level in about 50% of the China, it is playing an important role in world urban development. The city progress of the China, becomes a hot concern for in new areas of research evolvement of city spatial structure. More analyses on urban land use often focus on the aspect of urban expansion, and few pays attention to urban spatial structure change, urban inner land use, the evolution of functional area, all kinds of building area, the density of land assets, population density and its change rate (He Haibin,2005; Zhu Huiyi,2001). This paper fastly and accurately obtains urban land types, urban land area, the building area and the building floor area ratio (FAR), with help of high resolution remote sensing images and geographic information system (GIS). The combination of Shijiazhuang city urban datum land price and the statistical data, the value of urban land assets and the density of land assets, population density(PD) and its change rate are availed. These data disclose the laws of urban spatial structure evolution, urban spatial structure changes guide the city space reasonably increasing, and provide a method and theory to guide the rational planning of city functional zoning.
RESEARCH SCOPE AND METHOD
Research scopeThis research selects as the subject of experiment Shijiazhuang city in Hebei province, China, and is intended to study urban spatial structure evolution. The urban domain part is located at the east longitude between 114°23´ and 114°42, north latitude between 37°58ánd 38°58´， the central North China Plain, including 5 administrative units, the urban total population respectively is 141.64 million and 211.09 million people in 1994 and 2003.
Research methodThe paper employs the high resolution remote sensing images as the prime data source, combined with statistical data and the urban benchmark land price. Remote sensing (RS), GIS, statistical and investing method are assumed in data collecting and analyzing process. ArcGIS 9.0 version, PCI 9.0 software and man-machine interaction interpretation have been used in disposing the data, collected by the high-resolution remote sensing images. The interpretation results are processed under the condition of GIS. The urban land types and its area, the various types of building area are gained by an exploration of the figure, 2 stages from 1994 to 2003, based on spatial overlays. To obtain the spatial and attribute data of land use change, on this basis, urbanThe Study on the Urban Spatial Structure Change By High Resolution Remote Sensing Imagines-the Case of Shijiazhuang City Yin Jun, Liu Xiaozhuang, Zhang Tiejun, Guo Yujia
College of Urban and Rural Construction, Agriculture University of Hebei, Baoding ...
