Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
School of Economics and Management, Beijing University of Technology, Beijing, 100124, China.
J Environ Manage. 2022 Nov 1;321:115823. doi: 10.1016/j.jenvman.2022.115823. Epub 2022 Aug 12.
As the total water resources consumption control and carbon mitigation continuous improvement, the weak water-carbon incorporate management is increasingly exposed. In this study, a water-carbon nexus assessment framework is proposed to analyze the nexus relationship between water consumption and carbon emission, and distinguishes the coupled water-carbon transmission intensity and the transfer paths under regional and industrial scales. According to the practical input-output table, water consumption, and carbon emission information, the framework is applied to Beijing-Tianjin-Hebei urban agglomeration (BTHUA), a population, resource, and trade intensive area of China. Inter-regional/intra-regional water consumption and carbon emission transfer fluxes between sectors, the pairwise ecological relationship, and the water-carbon nexus were analyzed. Results indicated that the water-carbon transfer indexes from Hebei to Beijing and Tianjin were 161.85 kg/m and 113.88 kg/m in the study period, along with the most water consumption and carbon emission, and the worst water-carbon nexus. From the industrial perspective, electricity and gas supplying industry provided 7.8% and 29.1% of the total carbon transfer in Tianjin and Hebei, as the most key node sectors on the water-carbon nexus in the BTHUA. The research provides valuably supporting the adjustment of the existing urban agglomeration water-carbon nexus management schemes.
随着水资源总量消耗控制和碳减排的不断推进，弱水碳一体化管理的问题日益凸显。本研究提出了一个水碳关联评估框架，用于分析水资源消耗与碳排放之间的关联关系，并区分区域和产业尺度下水碳传输强度和传递路径的耦合关系。根据实际的投入产出表、水资源消耗和碳排放信息，该框架应用于中国人口、资源和贸易密集的京津冀城市群（BTHUA）。分析了部门间的区域间/区域内水资源消耗和碳排放转移通量、两两生态关系以及水碳关联。结果表明，在研究期间，河北向北京和天津的水碳转移指标分别为 161.85kg/m 和 113.88kg/m，伴随着最大的水资源消耗和碳排放，以及最差的水碳关联。从产业角度来看，电力和燃气供应行业在天津和河北提供了 7.8%和 29.1%的总碳转移，是京津冀城市群水碳关联的关键节点行业。本研究为调整现有城市群水碳关联管理方案提供了有价值的支持。
