基于空间扩散方程的天水市城镇土地基准地价平衡研究

研究目的：通过天水市城镇土地基准地价平衡研究，解决同一区域内不同城镇基准地价客观反映城镇之间的经济差异和地价水平的问题。研究方法：多维城镇土地分等指标体系，非均质地价空间扩散方程。研究结果：天水市商业地价与城镇之间质量及距中心城镇距离成负相关性，商业基准地价平衡前后差异较大，但平衡后地价符合实际情况。研究结论：从城市空间结构来看，位于“强场强区”内的城镇，其地价主要受中心城镇扩散的影响，而位于“弱场强区”内的城镇，其地价是中心城镇扩散和周围城镇共同作用的结果；影响平衡前后地价变动的主要因素为城镇质量（综合分值）和距中心城镇距离，且与城镇本身的区位交通条件关联较大。

Urban Benchmark Land Price Balance from the Perspective of Spatial Diffusion Equation

The purpose of this paper is to enable the benchmark land price in different towns in the same area to objectively reflect the economic differences between towns and their land price levels. Method was to build a multi-dimensional urban land grading index system, land space diffusion equation. The results indicate that the relation between commercial land price and the urban quality, or the distance to the township center tends to be negative correlation. However, after balancing the results is more realistic situation. The paper concludes that the analysis of urban spatial structure indicates that the land price in towns located in the so-called “high field strength zone” is mainly influenced by spatial location of central towns, while the land price in towns located in the so-called “weak field strength zone” is not only influenced by the location of central towns, but also related to the interaction between surrounding towns. The main factors influencing the land price changes before and after the balance are the quality of town （comprehensive） and its distance to the central town, and they are related to local traffic condition in the town itself.