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1.引言城市化的影响对发达和不发达国家都存在。现势性而又详细的信息对于城市规划十分重要。遥感方法可以提供这方面的某些信息。世界各地对用陆地卫星 MSS 数据进行城市区域分类作过很多研究。其成果之一就是建立了适用于遥感的城市区域分类系统。第一级是城市(建成区),第二级进一步细分成居住区、商业区、工业区和空地等,用陆地卫星 MSS 资料进行第二级或更低一级的划分成效不大。
1. Introduction The impact of urbanization exists in both developed and underdeveloped countries. The current and detailed information is very important for urban planning. Remote sensing methods can provide some of this information. Much research has been done on the classification of urban areas using land-based satellite MSS data throughout the world. One of its achievements is to establish a city area classification system suitable for remote sensing. The first level is the city (built-up area), and the second level is further subdivided into residential areas, commercial areas, industrial areas and open space. The division of the second or lower level with the MSS data of terrestrial satellites is not effective.