南京林业大学学报(自然科学版) ›› 2024, Vol. 48 ›› Issue (6): 217-228.doi: 10.12302/j.issn.1000-2006.202305002

• 研究论文 • 上一篇    下一篇

长三角城市群碳排放效率的空间关联网络及其影响因素

权天舒(), 张晖, 许玉韫*()   

  1. 南京林业大学经济管理学院,江苏 南京 210037
  • 收稿日期:2023-05-04 修回日期:2023-06-24 出版日期:2024-11-30 发布日期:2024-12-10
  • 通讯作者: *许玉韫(xuyuyun@njfu.edu.cn),讲师。
  • 作者简介:

    权天舒(quantianshu@njfu.edu.cn),博士生。

  • 基金资助:
    国家社会科学基金项目(21BGL167);国家社会科学基金项目(21&ZD101)

Spatial correlation and influencing factors of carbon emission efficiency in the Yangtze River Delta city cluster

QUAN Tianshu(), ZHANG Hui, XU Yuyun*()   

  1. College of Economics and Management, Nanjing Forestry University, Nanjing 210037,China
  • Received:2023-05-04 Revised:2023-06-24 Online:2024-11-30 Published:2024-12-10

摘要:

【目的】在“双碳”目标背景下,探索长三角城市群碳排放效率的空间网络格局及其影响因素,为推进低碳生态城市建设和建立包容性绿色增长机制提供依据。【方法】基于SBM-DDF模型、全局Malmquist-Luenberger指数以及核密度估计法,对2008—2020年长三角城市群碳排放效率水平进行测度和时空演变特征分析,并通过修正引力模型与社会网络分析法可视化了长三角城市群碳排放效率空间关联结构及影响因素。【结果】①长三角城市群碳排放动态效率总体呈上升态势,但地区间差异显著且表现出一定的空间扩散效应。②从网络密度、关联性、网络效率等3个方面看,长三角城市碳排放效率的网络稳定性较高,但网络中心度呈非均衡特征。③长三角城市群碳排放效率空间网络板块间具有明显的梯度特征。④政府宏观调控、环境规制、产业结构、对外开放、绿色创新、新型城镇化水平是推动空间关联网络演变的主要驱动机制。【结论】通过城市间相互合作与学习、发挥核心城市的空间辐射效应、优化产业结构、提高新型城市化水平等方式有助于长三角城市群碳排放效率的提升,进而推进长三角城市群生态绿色空间一体化发展。

关键词: 碳排放效率, 长三角城市群, 社会网络分析, 二次指派程序

Abstract:

【Objective】In the context of the “Carbon Peaking and Carbon Neutrality” goal, determining the spatial network pattern of carbon emission efficiency and its influencing factors in the Yangtze River Delta city cluster will promote the construction of low-carbon ecological cities and establish an inclusive green growth mechanism.【Method】Based on the slack-based measured directional distance function model, the global Malmquist-Luenberger index, and the kernel density estimation method, accurate measurements were obtained and an analysis of the spatial and temporal evolution characteristics of the carbon emission efficiency level of the Yangtze River Delta urban city cluster was conducted for the period of 2008 to 2020. The spatial correlation structure and factors influencing the carbon emission efficiency of the Yangtze River Delta city cluster were visualized by a modified gravity model and social network analysis.【Result】(1) The dynamic efficiency of carbon emissions was found to be generally increasing, but there were significant inter-regional differences and a spatial diffusion effect. (2) Based on network density, correlations and network efficiency, the network stability of carbon emission efficiency in the Yangtze River Delta cities was considered to be high, but the network centrality displayed unbalanced characteristics. (3) There were obvious gradient characteristics among the spatial network segments of carbon emission efficiency in the Yangtze River Delta city cluster. (4) Government macro-control, environmental regulation, industrial structure, external development, green innovation, and new urbanization were the main driving factors of the evolution of spatially linked networks.【Conclusion】Promoting the carbon emission efficiency of the Yangtze River Delta city cluster through mutual cooperation and learning among cities, bringing into play the spatial radiation effect of core cities, optimizing industrial structure, and improving the level of new urbanization could promote the integrated ecological and green spatial development of the Yangtze River Delta city cluster.

Key words: carbon emission efficiency, Yangtze River Delta city cluster, social network analysis, second-order assignment procedure

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