Population Density Surface Modelling in Changchun City
This paper presents Population Density Adjustment Model (PDAM) based population density surface modelling, taking into account the main factors affecting population distribution in urban areas to construct the PDAM and using the adjusted population densities of centroid points in each smallest population unit as sample points to interpolate population density. This method is necessary when there are no geographical coordinate data and population data for centroid points in each smallest population unit having large population. Taking Changchun City as a study site, PDAM was built through reclassified Euclidean distances to roads network, main shopping centres and reclassified buffer zones in the Central Sub-area according to its actual population distribution pattern. Final population density contour lines show that Changchun City is in a transformation period because its population density taking on a concentric structure with two population centres in the centre part and one potential population sub-centre forming to the southwest of the centre part. The nearer to the city centre, the higher population density.Moreover, model validation illustrated that this PDAM-based population density surface modelling is appropriate for Changchun City as well.
Population Density Adjustment Model (PDAM) population distribution pattern population distribution factors population density interpolation
Ping Zhang Peter Atkinson
Geo-Exploration Science & Technology College, JiLin University, Changchun, China;Northeast Institute School of Geography, University of Southampton, Southampton SO17 1B J, UK
国际会议
北京国际地理信息系统学术讨论会第七届会议（7th International Workshop Geographical Information System
北京
英文
39-47
2007-09-14（万方平台首次上网日期，不代表论文的发表时间）