摘要
通过构建效率测算与影响因素指标体系,运用超效率SBM、空间自相关和空间杜宾模型,探讨长三角区域一体化对城市土地利用效率动态演化的影响因素,为制定差异化的土地利用提升政策提供参考。结果表明:(1)时序演化上,2000~2018年长三角城市土地利用效率均值为1.003,历经“增长-下降-平稳”三阶段变化过程。全局Moran’s I指数大于0,正向相关性显著,溢出效应与集聚特征明显。(2)空间演化上,中心城市经济发展快,集聚人口能力强,盘活建成区存量用地,提高土地集约利用水平,效率较高。外围城市囿于土地政策不完善和城市格局的约束,效率亟需提升。(3)区域一体化中要素空间集聚、规模变化和产业结构调整影响效率变化,且不同因素的作用强度差异明显。经济发展与产业活动集聚具有涟漪效应,先进的生产技术、发展机遇等优先向邻近城市扩散,促进本城市和相邻城市土地利用效率的提升。因此,长三角区域一体化下,单纯增加建设用地和资本要素的投入规模,对土地效率的提升作用有限。只有盘活城市内外发展要素,促进用地结构调整和产业升级,才能有效提高城市土地利用效率。
Under the background of regional integration,it is of great theoretical significance to explore the influence mechanism of factors such as spatial agglomeration,scale change and industrial structure on urban land use efficiency.The paper explores the influence mechanism of Yangtze River Delta regional integration on urban land use efficiency pattern evolution,so as to provide reference for formulating targeted and differentiated urban land use efficiency promotion policies.The results show that:(1)During the study period,the average efficiency from 2000 to 2018 is 1.003,which goes through a three-stage fluctuation process of“growth decline stability”.The global Moran’s I index is greater than 0,the positive autocorrelation is significant,and the spatial spillover effect and agglomeration characteristics are obvious.Shanghai,Nanjing,Hangzhou and other cities have rapid economic development and strong ability to gather migrant population.Therefore,the amount of land in the built-up areas will be revitalized,and the investment intensity of land development will be improved,and the efficiency will be high.Due to the imperfection of sustainable land use policy and the limitation of urban layout,the utilization efficiency of peripheral cities needs to be improved.(2)In the process of Yangtze River Delta regional integration,the spatial agglomeration of factors,the change of scale and the adjustment of industrial structure would have different degrees of impact on urban land use efficiency.There are also ripple effects between economic development and industrial activity agglomeration.The advanced production technology and development opportunities of the city are preferentially diffused to the neighboring cities,which is of great significance to the improvement of land use efficiency of the city and adjacent cities.Under the background of regional integration,the core cities in the Yangtze River Delta gradually transfer their industries to the surrounding cities in the process of upgrading the industrial development level and advanced level.The strong spatial spillover effect is also conducive to the improvement of land use efficiency of adjacent cities.
作者
杨清可
谷娇
王磊
王雅竹
李颖
朱高立
YANG Qing-ke;GU Jiao;WANG Lei;WANG Ya-zhu;LI Ying;ZHU Gao-li(School of Public Administration,Nanjing University of Finance&Economics,Nanjing,210023,China;Key Laboratory of Coastal Zone Exploitation and Protection,Ministry of Natural Resources,Nanjing 210017,China;Taiyuan Normal University,Institute of Geography Science,Jinzhong,030619,China;Nanjing Institute of Geography and Limnology,CAS,Nanjing,210008,China)
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2022年第7期1455-1466,共12页
Resources and Environment in the Yangtze Basin
基金
江苏省优秀青年基金项目(BK20200109)
江苏高校哲学社会科学研究项目(2022SJYB0287)
江苏高校哲学社会科学研究项目(19KJB170015)
山西省高等学校哲学社会科学研究项目(2019W136)
自然资源部海岸带开发与保护重点实验室开放基金(2021CZEPK05)。
关键词
区域一体化
城市土地利用效率
影响机理
空间杜宾模型
长三角城市群
regional integration
urban land use efficiency
influence mechanism
pattern evolution
Yangtze River Delta Urban Agglomerations
