人口地理数据的不确定性及其对策研究

从第五次人口普查建立人口地理信息系统的实践出发 ,对人口地理数据的不确定性进行了归纳和总结。人口地理数据的不确定性主要包括空间地理数据的不确定性、人口数据的不确定性和系统对人口地理数据处理和分析时引入的不确定性。在对各种类型的不确定性进行分析的同时 ,针对数据的不确定性存在的客观事实 ,探讨了在建立和应用人口地理信息系统时应注意的问题、采取的措施和策略

The study on data uncertainty and its countermeasures in population GIS

Population census is a major activity to collect population data in China.This information has provided reliable information with the scientific formulation of mid- and long-term programs for national economic and social development,the integrated arrangement for the material and cultural life of the population,and the coordinated development of population,economy and resources and environment.Population GIS in national and provincial level have been established based on the population data from the fifth Population Census in 2000 and geographic data from the National Fundamental GIS.From the practice of the systems establishment,the data uncertainty in population GIS is studied and summarized.The uncertainty mainly includes uncertainty of spatial data,uncertainty of population data and uncertainty from the data processing and analysis.The countermeasures and strategies for the establishment and application of population GIS are given for different kinds of data uncertainty.