长江中游城市群县域住宅地价空间关联特征及其影响因素研究

Study on the Spatial Correlation Characteristics of Residential Land Prices in Counties of the Urban Agglomeration in the Middle Reaches of the Yangtze River and Their Influencing Factors

住宅地价对调控地方经济发展, 优化城市国土空间布局的作用日益凸显。本文以2017年长江中游城市群229个县 (市、区) 的住宅地价为研究对象, 基于均衡价格和区域经济理论, 建立县域住宅地价的影响因素理论模型; 运用空间自相关分析、空间滞后模型等方法对研究区住宅地价空间分布特征及影响因素进行探究。研究结果表明: (1) 长江中游城市群内不同县域住宅地价总体差异显著, 住宅地价水平由低到高整体呈现“金字塔”型分布。 (2) 城市群内县域住宅地价空间分布格局受区位条件和上级市行政等级影响较大。住宅地价在东西方向上呈现倒“U”型分布, 东部整体高于西部; 南北方向上由北向南呈现逐渐下降的趋势。 (3) 研究区县域住宅地价全局莫兰指数为0. 603, 整体存在显著的空间正相关和集聚现象, 在局部上的空间集聚特征明显。 (4) 长江中游城市群县域住宅地价间存在显著正向溢出效应, 研究区县域住宅地价同时受到土地供需因素和政策制度、政府调控能力的强烈影响。相关结论可为城市群通过地价调控优化城市资源配置, 缩小区域发展差距, 促进区域一体化发展提供参考。

The role of residential land price in regulating local economic development and optimizing urban land spatial layout is becoming more and more prominent. This paper takes the residential land price of 229 counties (districts, cities) of urban agglomeration in the middle reaches of the Yangtze River in 2017 as the research object, and establishes a theoretical model of the influencing factors of county residential land price based on equilibrium price and regional economic theory; and uses methods of spatial autocorrelation analysis and spatial lag model to explore the spatial distribution characteristics and influencing factors of residential land price in the research area and the influencing factors. The research results indicate that: (1) There are significant overall differences in residential land price among different counties within the urban agglomeration in the middle reaches of the Yangtze River, and the overall distribution of residential land price shows a "pyramid" pattern from low to high. (2) The spatial distribution pattern of residential land price in counties within urban agglomerations is greatly influenced by the location conditions and the administrative level of higher-level cities. The residential land price shows an inverted "U" distribution in the east-west direction, with the eastern part being higher than the western part as a whole; There is a gradual downward trend from north to south in the north-south direction. (3) The Global Moran’s I of residential land prices in the research area is 0. 603, with a significant spatial positive correlation and agglomeration phenomenon. and the obvious local spatial agglomeration characteristics. (4) There is a significant positive spillover effect between county-level residential land price in the urban agglomeration of the middle reaches of the Yangtze River. The residential land price in the study area is strongly influenced by both land supply and demand factors, policy systems, and government regulatory capabilities. The relevant conclusions can provide reference for urban agglomeration to optimize urban resource allocation through land price regulation, narrow regional development gaps, and promote the integrated development of the region.