碳约束下冷链物流效率及其收敛性研究 ——以生鲜农产品为例

Research on the Efficiency and Its Convergence of Cold-chain Logistics Considering Carbon Constriction: Taking Fresh Agricultural Products as an Example

摘要:

生鲜农产品冷链物流的能源消耗较大，其碳排放量居高不下,在限制碳排放的条件下研究生鲜农产品冷链物流成为重要课题。利用三阶段数据包络分析模型，在约束碳排放量的情况下对2012－2017年长江经济带生鲜农产品冷链物流效率进行测度，并运用σ、β收敛模型分析省际效率差异的收敛性。研究结果显示：长江经济带生鲜农产品冷链物流效率逐年提升，但整体效率仍然偏低，规模效率偏低是制约综合技术效率提升的主要原因；长江经济生鲜农产品冷链物流效率既存在σ收敛也存在β收敛趋势，产业结构可以促进长江经济带整体和中游4省的条件β收敛，物流专业化水平可以显著促进下游地区的条件β收敛。据此，为提高长江经济带生鲜农产品冷链物流效率，提出加强低碳冷链物流基础设施建设、提升信息技术应用水平和加大区域对外开放程度等相关对策建议。

Abstract:

Cold-chain logistics of fresh agricultural products consumes a large amount of energy, and its carbon emission is high, the research on cold-chain logistics of fresh agricultural products has become an important subject under constrains on carbon emission. In this paper, three-stage DEA model is used to measure the efficiency of fresh agricultural products cold-chain logistics in the Yangtze River Economic Belt under carbon constraints in 2012－2017, and the convergence of the inter-provincial efficiency differences is analyzed by using σ convergence and β convergence models. The results show that the efficiency of fresh agricultural products cold-chain logistics in the Yangtze River Economic Belt has been increasing year by year, but overall efficiency is still low, low scale efficiency is the main reason that constricts the improvement of comprehensive technical efficiency; there is not only σ convergence in the fresh agricultural products cold-chain logistics efficiency in the Yangtze River Economic Belt, but also β convergence. The industrial structure can promote the conditional β convergence of the whole Yangtze River Economic Belt and the four provinces in the middle reaches. The level of logistics specialization can significantly promote the conditional β convergence of the downstream regions of the Yangtze River Economic Belt. Accordingly, the paper puts some suggestions to improve the efficiency of agricultural products cold-chain logistics in the Yangtze River Economic Belt, including strengthening low-carbon cold chain logistics infrastructure construction, improving the level of information technology application and increasing the degree of regional opening to the outside world.