首页|长江经济带生态效率的时空分布特征及演化趋势分析

长江经济带生态效率的时空分布特征及演化趋势分析

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  • NETL
  • NSTL
  • 万方数据
  • 维普
基于2008-2021年省市面板数据,采用超效率SBM模型测算长江经济带沿江11个省市的生态效率,采用Dagum 基尼系数及其分解方法剖析生态效率空间分布差异的构成及来源,采用 Kernel 密度估计方法探究生态效率的动态演化趋势.研究表明,在时间上,长江经济带总体生态效率稳定提升,但各省市的生态效率存在明显的阶段性和非平衡性特征;在空间上,三大城市群的生态效率由"下游>上游>中游"演化为"下游>中游>上游"分布格局.城市群区域间差异是构成长江经济带总体差异的主要来源.总体生态效率存在两极分化现象,城市群区域内各省市生态效率发展不平衡,区域间生态效率的绝对差异呈缩小态势.因此,沿江省市应加强技术创新和环境污染治理,立足区域特点,走因地制宜的特色化发展道路,同时,加强区域专业化分工与协作,以提高生态效率.
Analysis of Spatial-temporal Distribution and Evolution Trend of Ecological Efficiency in the Yangtze River Economic Belt
Based on the 2008-2021 provincial panel data,the super-efficiency SBM model is used to estimate the ecological efficiency of 11 provinces and cities along the Yangtze River Economic Belt,Dagum Gini coefficient and its decomposition method are used to analyze the components and sources of the spatial distribution differences of ecological efficiency,and Kernel density estimation method is used to explore the dynamic evolution trend of ecological efficiency.The results show that:in time,the overall ecological efficiency has been improved steadily,but there are obvious stages and non-equilibrium characteristics in provinces and cities of the Yangtze River Economic Belt,the ecological efficiency of the three urban agglomerations evolves from"Lower region>Upper region>Middle region"to"Lower region>Middle region>Upper region";the difference of ecological efficiency between urban agglomerations in the Yangtze River Economic Belt is the main source of the overall difference;the overall ecological efficiency has two-level differentiation,the ecological efficiency development of cities is unbalanced and the absolute gap of ecological efficiency between regions is narrowing.Therefore,the cities along the Yangtze River should strengthen the technical innovation and environmental pollution control,take the characteristic development path according to the local conditions and the regional characteristics,and strengthen the regional specialization division and cooperation so as to improve the ecological efficiency.

ecological efficiencyspatial-temporal distributionDagum Gini coefficientKernel density estimationYangtze River Economic Belt

易颖、黎振强、游肖月

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湖南理工学院 经济与管理学院, 湖南 岳阳 414006

生态效率 时空分布 Dagum基尼系数 Kernel密度估计 长江经济带

湖南省教育厅科学研究重点项目湖南省研究生科研创新项目湖南省教育科学规划课题

22A0468CX20231197XJK22BJG002

2024

湖南理工学院学报(自然科学版)
湖南理工学院

湖南理工学院学报(自然科学版)

影响因子：0.259
ISSN：1672-5298
年,卷(期)：2024.37(1)
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