黄河流域物流业生态效率及降污潜力研究

物流业高质量发展的一个重要方面是生态化要求。以物流业NOx、PM2.5等污染物排放量为非期望产出,基于SBM-Undesirable和Super-SBM-Undesirable模型,建立物流业生态效率及其三类提升潜力测度体系;在识别三类潜力不同提升效果的基础上,分析2004—2017年黄河流域内外部的物流业生态效率,运用ESDA方法从空间演化角度揭示降污潜力挖掘的重点区域和重点联动区域。分析表明:黄河流域物流业生态效率落后于黄河流域以外区域,且落后差距随时间持续扩大;呈"上游低、中游居中、下游高"的显著性差异,且差异随时间呈稳定趋势;相较于资源节约和增加期望产出,挖掘降污潜力是提升效率、缩小差距的最有效途径;上游是降污潜力挖掘的重点区域,甘肃、青海、山西具有降污强联动性。最后结合研究结论,提出针对性政策建议。

Eco-Efficiency and Pollution Reducing Potential of Logistics Industry in the Yellow River Basin

An important aspect of the high quality development of logistics industry is the requirement of ecology.Taking NOx,PM2.5,etc emissions of the logistics industry for non-expected output,and based SBM-Undesirable and Super-SBM-Undesirable models,logistics eco-efficiency in the inner and outer areas of the Yellow River basin and three improving potential sources from 2004 to 2017 are measured and compared.On the basis of judging the key improving source and from the perspective of spatial association,ESDA method is used to reveal the key areas of it.The results show that the logistics eco-efficiency of the Yellow River Basin lags behind that of areas outside the Yellow River Basin,and the lag gap continues to expand over time;the efficiency presents a significant difference of"low upstream,middle middlestream and high downstream",and the difference shows a steady trend with time;Compared with saving resources and increasing expected output,exploiting pollution reducing potential is the focus to improve efficiency and narrow gap;Upstream is the key area for potential remediation,Gansu,Qinghai and Shanxi have strong mobility for pollution reduction.Combining with the conclusions of the study,this paper puts forward some targeted policy recommendations.