Spatial network of industrial chains and their embodied carbon emissions in the Beijing-Tianjin-Hebei region
Under the background of collaborative development of Beijing,Tianjin and Hebei(BTH),interregional economic exchanges embody the division of labor in the industrial chain and the flow of embodied carbon emissions,thereby affecting the regional functional coordination and attribution of carbon emission responsibilities.Based on the Multi-Regional Input-Output(MRIO)Table of China in 2012 and 2017,this study constructed the industrial chain spatial network of the BTH region and analyzed the industrial links within the region and the embodied carbon emission flow relationships,in order to provide a decision-making basis for the coordinated development and for achieving the"dual carbon"goals of the region.The results show that:1)The industrial division of the BTH region was clear,but the functional coordination was insufficient.There was also a strong dependence of industrial spatial connections and embodied carbon flow on heavy industry.The industrial chains in the construction field and equipment manufacturing are the main routes for interregional industrial linkages.2)The production link of the manufacturing industry in the BTH region is weak.The upstream and downstream output of the core industrial chains is always higher than that of the midstream,and the spatial network linkage from manufacturing to producer services is weak.3)From the perspective of spatial pattern of embodied carbon emissions,Beijing and Hebei are the areas that transfer and undertake the most embodied carbon emissions within the BTH region,and Tianjin's embodied carbon emissions account for the highest proportion of total carbon emissions in the region.On this basis,this article proposed policy recommendations including deepening the spatial integration of the industrial chain,and taking the lead in carrying out carbon tax and carbon emission trading pilot projects.
coordinated industrial developmentindustrial chain spatial networkembodied carbon emissionsinput-output methodBeijing-Tianjin-Hebei region