论城市地价空间演化规律及其动因

ON SPATIAL DEVELOPING RULE OF URBAN LAND PRICE AND ITS DRIVING FACTORS

对城市地价的空间分布研究正在逐步走向成熟，但至今仍未有人对动态分布进行过研究。本文通过对城市地价的空间分布变化规律的分析研究，利用地价平台、地价陡坡等新概念，探索其时间序列上的演化规律及其动因，力图构筑起城市地价四维空间理论的框架；进而探讨了该理论在实践中的一些应用方向和实用价值．

n urban land price is a reflection of the land's synthetical location. Although urban lands'prices show not continuous, they remain to be considered continuous because the areas of massifsare much less than that of an urban district-they just form the surface of urban land price. A gentle section on the surface (itS gradient angle a≤ 15°) is Called Land price terrace. A steep sectionon the surface (its gradient angle a≥30° is called Land price slep.Land price terrace can be divided into two tyPes: concave and convex. They would becomelarger or smaller as time goes on. And Land price steep would alwayS be translated towards lowerland price area. Consequently, the middle and the lower pertS of a Land price sleep normally increase more quickly. Although increasing in land price is mainly driven by land profitS and urbanplanning, it finally reflects the sitUation of the fUnds put into urban constructions and the time ofresPOnse to the sit'Uation in land price. The edges of central urban district and the jointS between urban and suburban ares are considered as those where their lands' prices increase the most rapidlyin the city. The land price of other sections of the city could be judged according to local concreteconditions.