基于ESDA的广东省城镇建设用地空间分布模式分析

城镇建设用地是承载人们生产、生活以及非农产业活动的主要空间载体，研究城镇建设用地空间分布模式，能揭示城镇建设用地的空间演变规律，对全面认识城镇建设用地未来的发展具有十分重要的现实意义。以广东省县域单元为研究对象，将ESDA与GIS技术相结合，对城镇建设用地的空间分布模式进行了分析。结果表明:广东省城镇建设用地大致呈“中心—外围”空间分布模式，整体上存在显著的空间集聚现象；局部具有较强的空间正相关关系，珠江三角洲核心区域形成显著HH关联模式，粤北山区东部和西部保持显著LL关联模式；自然、社会经济和政策等是影响广东省城镇建设用地空间分布的主要因素。研究结果可为城镇建设用地合理布局提供参考。

Analysis on Spatial Distribution Patterns of Urban Construction Land in Guangdong Province Based on ESDA

Urban construction land is the main space site carrying people’s production, living and non-agricultural industries. Research for the spatial distribution patterns can reveal the space evolution of urban construction land, and it has very important practical significance for comprehensive understanding the development of urban construction land in the future. This paper analyzed the spatial distribution patterns of urban construction land by taking the counties of Guangdong as a research objects based on the exploratory spatial data analysis (ESDA) and GIS technology. The results showed that urban construction land spatial distribution of Guangdong Province was characterized by the ‘center-periphery’ pattern. On the whole there were significant phenomena of spatial clustering in the study area. Using of Moran’s scatter plots and LISA (Local Indicators of Spatial Association) cluster maps, we could identify there was strong spatial positive correlation in some regions that the core area of Pearl River delta formed significant HH correlation model, and east and west of northern Guangdong mountainous area retained significant LL correlation model. Natural and socioeconomic conditions and policy were the main factors affecting the spatial distribution of urban construction land in Guangdong Province. The results could provide reference for rational layout of urban construction land.