摘要
采用基于非期望产出的SBM-Malmquist模型,测算2010年-2020年长江经济带19个主要港口的生态效率及全要素生产率,分析长江经济带不同时空条件下的港口生态效率状况及其动态变化趋势。研究结果表明:长江经济带港口总体生态效率呈波动增长趋势,上中下游的港口生态效率空间差距大,呈下游>中游>上游的阶梯状分布;长江经济带港口生态效率以年均6.9%的速度增长,技术进步水平是影响全要素生产率变动的主要因素。据此提出优化资源配置、提升管理水平、提高科技创新能力、建设智慧港口和加强区域间协调合作的对策建议。
This paper uses the SBM-Malmquist model based on undesirable output to evaluate the ecological efficiency and total factor productivity of 19 major ports in the Yangtze River Economic Zone from 2010 to 2020.It analyzes the port eco-efficiency and its dynamic change trend in different periods and regions of the Yangtze River Economic Zone.The results show that the overall eco-efficiency of ports in the Yangtze River Economic Zone shows a fluctuating growth trend,and the spatial gap between the upstream,midstream and downstream ports is large.The step-like distribution of downstream>midstream>upstream is presented.The eco-efficiency of ports in the Yangtze River Economic Zone is growing at an average annual rate of 6.9%,and the level of technological progress is the main factor affecting the change of total factor productivity.Accordingly,suggestions are proposed to better promote port eco-efficiency byoptimizing resource allocation and improving management level,enhancing scientific and technological innovation capacity,building smart ports and strengthening regional coordination and cooperation.
作者
何家琪
王敏
邓梦华
李华玉
He Jiaqi;Wang Min;Deng Menghua;Li Huayu(Business School,Hohai University,Nanjing 211100,China;Institute of Low-carbon Economy,Hohai University,Changzhou 213022,China)
出处
《环境科学与管理》
CAS
2023年第5期21-26,共6页
Environmental Science and Management
基金
国家自然科学基金项目“基于多源大数据的流域生态补偿效果评估及协同治理机制研究”(42001250)
江苏省高校哲学社会科学研究重大项目“基于效率视角的长三角港口群生态协同建设及提升路径研究”(2021SJZDA120)
中央高校基本科研业务费项目“碳排放视角下港口环境效率与城市经济时空耦合协调研究——以长三角地区为例”(B220203043)。
