PROGRESS IN GEOGRAPHY ›› 2011, Vol. 30 ›› Issue (5): 635-640.doi: 10.11820/dlkxjz.2011.05.017

• Original Articles • Previous Articles    

Spatial Down-scaling Analysis and Simulation of Population Density in Maotiaohe Basin, Guizhou Province

WANG Lei, CAI Yunlong   

  1. College of Urban and Environmental Sciences, the Center for Land Study, Peking University; Laboratory for Earth Surface Processes, the Ministry of Education, Beijing 100871, China
  • Received:2011-01-01 Revised:2011-04-01 Online:2011-05-25 Published:2011-05-25

Abstract: Population census is based on administrative unit, therefore, the data accuracy can not meet the higher resolution analysis of the spatial structure and is difficult to match the data of physical elements in a comprehensive analysis of geographic features. Thus, spatialization of population density becomes an important research direction in geography. Based on the statistical population data of villages in the Maotiaohe basin, this research first analyzed the relationship between population density and spatial factors, and then established a spatial down-scaling model of population density by means of multiple variables regression analysis and GIS technique. The correlation coefficient between population density and spatial factors is 0.577. For testing and verifying the model, we calculated the population of every village with modeling results and compared it with statistical data. The correlation coefficient almost reached 1. The result shows that the main spatial factors of population density are the built-up area, farmland index and the distance to road.

Key words: down-scaling spatial analysis, Guizhou, Maotiaohe basin, population density, spatial simulation