地理研究 ›› 2021, Vol. 40 ›› Issue (3): 793-807.doi: 10.11821/dlyj020190950

• 研究论文 • 上一篇    下一篇

特大城市郊区建设用地效益比较研究——以天津市11个市郊区县为例

游猎1(), 王睿2()   

  1. 1.上海交通大学设计学院建筑学系,上海 200240
    2.天津大学建筑学院城乡规划系,天津 300072
  • 收稿日期:2019-10-30 接受日期:2020-03-16 出版日期:2021-03-10 发布日期:2021-05-10
  • 通讯作者: 王睿
  • 作者简介:游猎(1986-),男,四川南部人,博士,助理教授,研究方向为区域与城乡发展。E-mail: youlie@sjtu.edu.cn
  • 基金资助:
    国家重点研发计划项目(2018YFC0704701);国家自然科学基金项目(51908350)

Comparative study on the benefits of the construction land use in suburban megacities:Based on the case study of 11 districts (counties) in Tianjin

YOU Lie1(), WANG Rui2()   

  1. 1. Department of Architecture, School of Design, Shanghai Jiao Tong University, Shanghai 200240, China
    2. Department of Urban Planning, School of Architecture, Tianjin University, Tianjin 300072, China
  • Received:2019-10-30 Accepted:2020-03-16 Online:2021-03-10 Published:2021-05-10
  • Contact: WANG Rui

摘要:

对于特大城市郊区建设用地效益的比较研究,有助于判别不同地区之间发展质量差异性,以此为特大城市区域资源的合理分配与预测提供支撑。本文基于“核心-边缘”理论,在既有建设用地效益评价方法的基础上,构建了兼顾同级别地区(市郊区县)与不同级别地区(市郊区县与中心城区)之间的“横向-纵向”效益特征模型。在对市郊区县之间效益相对优势比较的基础上,增加各市郊区县与中心城区的效益等级比较维度,并完善“人口-经济-空间”多系统综合效益评价方法,实现该模型的量化评估。对特大城市郊区建设用地效益的比较研究模型实现了以下两方面的优化:其一,以人口-经济-空间三系统的建设用地效益取代以往以人口、经济单一系统效益比较方法,可实现对社会经济要素在建设用地投入约束下的不均衡性评估和效益机制分析;其二,增加与中心城区比较的纵向维度比较,可在市郊区县相对优势判断基础上,进一步明确其在特大城市区域等级中的变化趋势,增加效益评估的多维性。本文以天津市11个市郊区县为实证研究,得到以下研究结论:① 从天津市郊区区域效益等级方面,从单一节点逐渐变为京津滨海轴向拓展,多核心的区域多极网络空间结构并未完全建立,并呈现较弱的轴带发展趋势。从纵向效益及多维模型判断,多数区县效益特征模型呈现边缘化增长模式,郊区整体效益等级趋同且降低。② 中心城区核心极化特征明显,近远郊效益“扁平化”结构显著。市郊区县与中心城区效益等级差距更大且缺乏中间梯度层级。主要表现在近、远郊各自效益相对趋同而两者之间差异减弱。由此,控制郊区土地资源供给、优化不同效益区域的产业发展模式可有效提升郊区建设用地效益,优化区域空间发展结构。

关键词: 特大城市, 郊区, 建设用地效益, 评价体系, 比较研究

Abstract:

The suburbs of megacities present a high dependence on the functional radiation of the central city, and there exist high relevance and competitiveness under the coordinated development of regions. A comparative study on the benefits of construction land in the suburbs of megacities is helpful to distinguish the development quality between different regions, so as to provide support for the rational allocation and prediction of regional resources in mega-urban areas. Based on the "core-periphery" theory, and on the basis of the existing construction land benefit evaluation method, this paper constructs a "horizontal-level" model between the same level areas (city suburbs and counties) and a "longitudinal-level" model (city suburbs and counties and central urban areas). On the basis of comparison of the benefits between the suburbs and counties of the city, the dimension of comparison of the benefits between the suburbs and counties and the central urban area has been introduced, and the "population-economy-space" multi-system comprehensive benefit evaluation method to make the quantitative evaluation of the model has been improved. The comparative research model for the benefit of construction land in the suburbs of megacities has optimized in the following two aspects: (1) the construction land benefit of the population-economy-space system replaces the previous method of comparison of the benefits of a single system of population and economy, which focuses more on the comparison of social benefits. (2) To add the vertical dimension compared with the central urban area and based on the judgment of the relative advantages of the suburbs and counties of the city, the changing trend in the regional hierarchy of megacities can be further clarified. This paper takes 11 districts and counties in suburban Tianjin as an empirical study, and obtains the following conclusions: (1) In terms of regional benefit levels, the benefit structure of Tianjin's suburbs has gradually changed from a single node to an axial expansion of the Beijing-Tianjin-Binhai New Area. The expected multi-core and multi-polar network space structure has not been fully established. (2) The benefit polarization in the central city is obvious. And the "flat" structure of benefits in the suburban and outer suburbs is significant. There is a great gap in benefit levels between suburban counties and central urban areas and lack of intermediate gradient levels. This feature is mainly manifested in the relative convergence of the benefits of the suburban and outer suburbs. Therefore, controlling the supply of land resources in the suburbs and optimizing the industrial development model of different benefit regions can effectively enhance the benefits of construction land in the suburbs and optimize the regional spatial development structure.

Key words: megacity, suburban district (county), construction land benefit, evaluation system, comparative study