上海市城乡实体地域的划分

正确的城乡划分，并以此为依据统计城镇人口，是社会经济统计的重要组成部分．城乡划分方法的研究在理论和现实两方面都具有重要的意义。利用上海市2000年的航空遥感影像和人口普查地理信息系统，作了实验性的城乡实体地域划分。特别对上海市主城区、郊区青浦区、远郊金山区张堰镇三种类型的城镇实体地域，作了较详细的划分方法探讨．以此来分别模拟国内大城市、中小城市和小城镇的实体地域划分。本文分步骤介绍了各类型城乡实体地域划分的基本过程，同时对每种类型实体地域的多种精度的结果进行比较研究．分别探讨大城市、中小城市和城镇三种类型的实体地域划分在近远期分别应达到的精度．精度合适、操作简便，是本次研究的重点，目的是为了将城镇实体地域划分工作在大范围内推广，

Urban and Rural Area Division:Taking Shanghai as an Example

As a basis of counting urban population, the correct urban-rural division is an important component in collecting, classifying and analysing socio-economic statistics. Research on urban and rural area division method has the vital significance both in theory and practice. Using Shanghai 2000 aerial remote sensing photographs and the Population Geographical Information System, this paper makes an experimental division of urban and rural areas. Detailed division method discussion has been made for three kinds of urbanized area, i.e., Shanghai city proper, the suburban Qingpu District and outer suburban Zhangyan town of Jinshan District, for the purpose of simulating regional division of the metropolitan, urban and town areas separately. It firstly introduces the basic division processes of the three types of urban and rural areas. Then it conducts a comparative study on different precision results of each type of the areas. Finally the authors discuss the three types of urbanized area divisions for metropolises, medium- and smail-sized cities as well as towns in terms of precision to be reached in the near- and long-term respectively. Appropriate precision and simple operation is the focus of this research, which aims at promoting the urbanized area division work in a wide range.