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采用GIS空间分析技术绘制合肥市2007年和2011年住宅修正地价等值线图,并依据合肥市圈层放射形的空间结构形态选取5条核心放射的剖切线。基于剖切线比较分析2007年和2011年的剖面线型地价的特征。结果表明:不同年份地价从中心往外围整体呈现衰减趋势,2011年城市各方向剖面地价从中心往外围出现了一系列明显的凸形地价阶地。比较明显的区域包括合肥市一环路与二环路附近。大蜀山和天鹅湖区域以及滨湖新区区域。针对凸形地价阶地出现的中观区位进行系统分析发现城市主导方展方向和重点发展区域、城市新兴功能组团、城市整体道路交通布局下新的交通节点、城市新的游憩综合区是形成凸形地价阶地的主要成因。
The GIS spatial analysis technique was used to draw contour maps of residential land price in 2007 and 2011 in Hefei City, and the five core radiation cut lines were selected according to the spatial structure and shape of the radial radiation in Hefei city. Based on the cut-off line, the characteristics of profile land-based land prices in 2007 and 2011 are compared and analyzed. The results show that the price of land in different years declines from the center to the periphery as a whole. In 2011, a series of obvious convex land price terrains appear in the profile land prices in all directions from the center to the periphery. The more obvious areas include Hefei First Ring Road and Second Ring Road nearby. Dasushan and Swan Lake area and Binhu New Area. According to the systematic analysis of the meso-zoning location in the convex terraces, it is found that the urban leading Fangzhan direction and the key development areas, the urban emerging functional groups, the new traffic nodes under the urban overall road traffic layout, the new urban recreation integrated area is convex The main cause of land price.