合肥主城区住宅剖面线型地价的比较与成因分析

Comparison and Cause Analysis of Residential Section Line Type Land Price of Hefei Main City Zone

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。

Residential modified land price isoline map of Hefei city in year 2007 and year 2011 is obtained by GIS spatial analysis technology in this paper. Five core radiant slitting lines are selected by radial circle spatial structure of Hefei and comparative analysis of the section line type land price characteristics has been made between year 2007 and year 2011 based on them. The analysis showed that the land price present attenuation trend from center to periphery in different year, city land price of each direction profile appeared a series significant convex land price terrace from center to periphery in year 2011, in which the obvious area includes city one loop and two loop nearby, the Dashushan area, Swan Lake area and Binhu new district area. System analysis is made on medium location appeared in convex land price terrace and fined that city leading development direction and key developing areas, city emerging functional groups, the new traffic node under the new layout of the whole city and fresh recreation area are main causes of formation of the convex land price terrace.