Evaluation and influencing factors of economic efficiency of forestry carbon sequestration in China under the background of"dual carbon"
[Objective]Studying the economic efficiency of forestry carbon sequestration can promote high-quality development of forestry in the new era,and provide key support for achieving China's"dual arbon"goals.[Method]Based on the background of the"dual carbon"target,the DEA-CCR model was used to measure the economic efficiency of forestry carbon sequestration in 30 provinces(regions,cities)of China from 2016 to 2022.A panel Tobit model was constructed to examine the relevant factors affecting the economic efficiency of forestry carbon sequestration.The Dagum Gini coefficient method was used to conduct in-depth research on the regional differences and sources of forestry carbon sequestration economic efficiency in the three major regions of China,namely the East,Central,and West.[Result]From 2016 to 2022,the scale efficiency of forestry carbon sequestration in 30 provinces(districts,cities)in China was at a high level,while the overall level of comprehensive efficiency and pure technical efficiency was relatively low.In 2022,China's forestry carbon sequestration comprehensive efficiency value,forestry carbon sequestration pure technical efficiency value,and forestry carbon sequestration scale efficiency value have all improved.2)At the level of influencing factors,the proportion of impoverished population,the proportion of migrant workers,the proportion of forestry income,the degree of industrialization,and rainfall all had a significant positive impact on the economic efficiency of forestry carbon sequestration.The development of urbanization was not conducive to improving the economic efficiency of forestry carbon sequestration.The impact of natural disaster rates on the economic efficiency of forestry carbon sinks was not significant.3)At the level of regional differences,the intra-regional differences in the economic efficiency of forestry carbon sinks in the central and eastern regions decreased from 2016 to 2022,and the pattern of regional coordinated development was initially formed,which played an important role in promoting the realization of"dual carbon".[Conclusion]It is necessary to strengthen the construction of the forestry carbon sequestration system,promote the scientific layout of forestry carbon sequestration projects,and gradually narrow regional development gaps,in order to steadily improve the economic efficiency of forestry carbon sequestration and effectively assist in accelerating the realization of the"dual carbon"goal.
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