Research on China’s agricultural net carbon emissions and carbon compensation: a re-examination from dual perspectives of production and consumption
摘要
Research on agricultural carbon compensation (ACC) from the dual perspectives of production and consumption provides an important policy instrument for clarifying the allocation of “carbon responsibility” and for aligning incentives between those who conserve and manage ecological resources and those who benefit from the resulting ecosystem services. To re-examine the patterns of agricultural net carbon emissions (ANCE) from these dual perspectives, this study employs a Multi-Regional Input-Output (MRIO) model, using input-output data from 30 Chinese provinces for 2012, 2015, and 2017, to calculate carbon inflow, carbon outflow, and net carbon inflow for each province. To refine ACC standards, this study further applies the Slacks-Based Measure (SBM) model and its dual form to analyze differentiated marginal abatement costs across provinces. Subsequently, a carbon compensation adjustment coefficient is introduced to quantify and adjust the differentiated ACC values for each province. The results show that: (1) Regions with net agricultural carbon emissions in China are predominantly concentrated in the south, while regions with net carbon sinks are mostly located in the north. (2) Corrected ANCE by carbon transfer more accurately reflects the “carbon responsibility” that each province should bear. (3) ACC payment areas (ACCpa) are mainly concentrated in southeastern China, the Yangtze River Economic Belt, and parts of the northwestern region. Among the ACC benefiting areas (ACCba), Shandong, Hebei, and Henan rank highest. After adjustment by the compensation coefficient, the payments in economically developed regions increased significantly, while the benefiting amounts for Shandong, Henan, Hebei, Jilin, and Heilongjiang also saw notable improvements.