Temporal-Spatial Features and Influence Mechanism of Disparity of Urban Construction Land Economic Density in Guangdong Province

This paper analyzed the temporal-spatial features and influence mechanism of urban construction land economic density of Guangdong Province during 1996-2008 with methods including ArcGIS spatial analysis, Theil index, gravity center model and panel data model, based on panel data of urban construction land economic density of the 21 prefecture-level cities in Guangdong. The conclusions were as follows: First, the overall disparities of urban construction land economic density among those cities were increasing with volatility and gravity center of urban construction land economic density moving to northwest from 1996 to 2008. Second, the difference of urban construction land economic density among the cities was obvious and spatial pattern showed a certain agglomeration and peak effect in 2008. Third, the relative development speed was also very different, and among the 4 type regions categorized by the basic level and increasing speed of economic density, those whose economic density was less and speed of economic density increase was faster and whose economic density was higher and speed of economic density increase was faster had the highest proportion. Finally, with the influence factors of industrial structure optimization, increased input of labor or capital, traffic location change and improved science and technology level, the economic benefit of urban construction land in Guangdong would be significantly improved.