资源科学 ›› 2020, Vol. 42 ›› Issue (4): 723-734.doi: 10.18402/resci.2020.04.11

• 土地资源 • 上一篇    下一篇

长三角地区城市土地开发强度时空分异与影响机理

杨清可1, 段学军2(), 金志丰3,4, 王磊2, 王雅竹2   

  1. 1. 南京财经大学公共管理学院,南京 210023
    2. 中国科学院南京地理与湖泊研究所,南京 210008
    3. 武汉大学资源与环境科学学院,武汉 430079
    4. 江苏省土地勘测规划院,南京 210017
  • 收稿日期:2019-07-31 修回日期:2019-10-25 出版日期:2020-04-25 发布日期:2020-06-25
  • 通讯作者: 段学军
  • 作者简介:杨清可,男,山东滕州人,讲师,研究方向为区域规划与土地利用。E-mail: yangqingke66@163.com
  • 基金资助:
    国家重点研发计划项目(2018YFD1100101);国家自然科学基金项目(41601169);南京财经大学2019年青年学者支持计划项目(YQKXW19001)

Spatiotemporal differentiation and influencing mechanism of urban land development intensity in the Yangtze River Delta

YANG Qingke1, DUAN Xuejun2(), JIN Zhifeng3,4, WANG Lei2, WANG Yazhu2   

  1. 1. School of Public Administration, Nanjing University of Finance & Economics, Nanjing 210023, China
    2. Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, China
    3. School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
    4. Jiangsu Institute of Land Surveying and Planning, Nanjing 210017, China
  • Received:2019-07-31 Revised:2019-10-25 Online:2020-04-25 Published:2020-06-25
  • Contact: DUAN Xuejun

摘要:

本文基于2000—2015中典型年份长三角地区土地利用现状遥感监测数据,对城市土地开发强度的时空分异与影响机理开展研究,明确区域城市土地扩展动态与要素驱动因子。主要结论为:①长三角地区城市土地开发强度指数不断增长,2000—2015间年均增速为4.20%,高于全国的1.28%。“沪宁—沪杭—杭甬”发展的“Z”字轴线上开发强度较高,与社会经济发展水平相一致,周边县市开发强度较低,“核心—外围”空间结构特征显著。②城市土地开发强度在空间上表现出正的自相关性,城镇建设与工业发展沿干线路网和核心城市展开,经济溢出与外资注入使得外围区县的外向型产业发展极具特色,土地开发强度的异质性高且较稳定,布局均衡。③影响城市土地开发强度变化因素中,自然因素对城市土地开发的约束作用随着工业化推进和产业结构升级而逐渐减弱,城市土地被高效利用,克服基础地理限制的能力不断增强。发达的交通路网便利了生产资源的流入,促进社会进步和经济发展,推动了城市土地的开发,显著提高了开发强度。同时,较高的城市行政等级在基础设施投入、人才吸引、交通设施等方面产生虹吸效应,对城市建设用地面积需求增大,助推了城市土地开发强度的提高。

关键词: 城市土地开发强度, 时空分异, 空间相关, 影响机理, 长三角地区

Abstract:

Urban land development intensity is a comprehensive reflection of the present situation of land use and the starting point of sustainable utilization in the future. It is also a comprehensive index reflecting the breadth of urban land development and carrying capacity of population and social and economic development. Based on the remote sensing monitoring data of land use in the Yangtze River Delta from 2000 to 2015, this study examined the spatiotemporal differentiation and influencing mechanism of urban land development intensity by using spatial analysis, multiple regression, and spatial error regression models, in order to improve land use efficiency and environmental quality. The main conclusions are as follows: (1) The index value of urban land development intensity in the Yangtze River Delta had been increasing from 0.089 in 2000 to 0.165 in 2015, which is higher than the national average of 0.046 in the same period. The development intensity of the “Z” axis of the Nanjing-Shanghai-Hangzhou-Ningbo area is higher than the regional average, which is consistent with the level of social and economic development. The development intensity of surrounding counties and cities is relatively low, and the spatial structure of core-periphery is remarkable. (2) Urban land development intensity shows a positive spatial correlation. Urban construction and industrial development are based on trunk transportation network and core urban areas. Economic spillover and foreign capital injection make the export-oriented economic development of surrounding counties very distinctive. The heterogeneity of land development intensity is high and relatively stable, and the spatial layout gradually reaches equilibrium step by step. However, the correlation gradually weakened in time. (3) The constraints of natural conditions on urban land development are weakening, and the deep industrialization and transformation and upgrading of industrial structure lead to efficient urban construction land development. Urbanization gathers a large number of immigrants, and the construction of highly developed transportation network facilitates the inflow of talent, capital, technology, and other essential resources. Both the level of social development and the force of economic development have become important factors that promote the enhancement of regional land development intensity. Meanwhile, the spatial agglomeration effect of higher urban administrative level in infrastructure investment, talent attraction, transportation facilities, and other aspects also promotes the large-scale development of urban land.

Key words: urban land development intensity, spatiotemporal differentiation, spatial association, influencing mechanism, Yangtze River Delta