中国人口·资源与环境2024，Vol.34Issue(2)：70-80,11.DOI:10.12062/cpre.20230916
2011-2020年中国大豆生产碳排放效率时空演变及影响因素
Spatio-temporal evolution of carbon emission efficiency and influencing factors of China's soybean production from 2011 to 2020
摘要
Abstract
Accurately analyzing the carbon emission efficiency of soybean production and identifying factors influencing the carbon emission efficiency can be helpful to provide references and a data basis for promoting carbon reduction in soybean production.Howev-er,few specific studies on the carbon emission efficiency of China's soybean production have been reported.In particular,no studies on the influencing factors of the carbon emission efficiency of China's soybean production have been conducted.To fill such a research gap,this study evaluated the carbon emissions of China's soybean production from 2011 to 2020 by applying life cycle assessment.Then,the Super-SBM model based on the unexpected output was adopted to measure the carbon emission efficiency of China's soybean production.Finally,the Tobit model was adopted to explore the factors influencing the carbon efficiency of China's soybean production.The results showed that:① The total carbon emissions generated from China's soybean production exhibited a trend of'increase-de-crease-increase,'with an increase of 47.70%from 2011 to 2020.The carbon emissions generated by per RMB 10 thousand yuan soy-bean production were 7.48 t in 2020,which was 32.62%higher than that in 2011,which was 5.64 t.Meanwhile,the carbon intensity in-creased from 5.16 t/hm2 in 2011 to 6.09 t/hm2 in 2020,with an increase of 18.02%.The results of this study showed that carbon emis-sions from soybean production exhibited an upward trend in general,while regional differences existed.For instance,Heilongjiang had higher carbon emissions,higher carbon emissions per value unit output,and higher carbon intensity,posing high stress on carbon emis-sions reduction.②The carbon emission efficiency of soybean production in China showed an evolution trend of first decreasing and then increasing,with an average value of 0.78.In addition,the spatial difference in carbon emission efficiency in soybean production was obvious.Except for Shanxi and Jilin,the average annual change rate of carbon emission efficiency in other major soybean-produc-ing areas was positive,with Shanxi exhibiting great potential for improving emission efficiency.③ The analysis of the influencing fac-tors of carbon emission efficiency showed that crop planting structure,financial support for agriculture,agricultural mechanization,and agricultural technology had significant positive effects on the carbon emission efficiency of soybean production.Meanwhile,agricultural industrial structure and the education level of the rural labor force had significantly negative effects on the carbon emission efficiency of soybean production.Suggestions such as improving agricultural mechanization and financial support for agriculture,and making poli-cies based on the regional heterogeneity of carbon emission efficiency of soybean production are proposed so that green and low-carbon development of soybean production can be achieved and the reduction of carbon emissions in the agricultural sector can be eventually promoted.关键词
生命周期评价/大豆/碳排放效率/影响因素/超效率SBM/Tobit模型Key words
life cycle assessment/soybean/carbon emission efficiency/influencing factor/Super-SBM/Tobit model分类
管理科学引用本文复制引用
陈伟,洪静兰,李照令,王亚平,张天祚,耿涌..2011-2020年中国大豆生产碳排放效率时空演变及影响因素[J].中国人口·资源与环境,2024,34(2):70-80,11.基金项目
国家自然科学基金青年科学基金项目"城市低碳转型下典型行业能源-水-温室气体排放纽带关系及协同管理路径研究"(批准号:72004125),基础科学中心项目"数字经济时代的资源环境管理理论与应用"(批准号:72088101) （批准号:72004125）
山东省高等学校"青创团队计划""'双碳'目标下山东省重点行业减污降碳协同增效优化路径研究"(批准号:2022RW063) （批准号:2022RW063）
中国博士后科学基金第73批面上资助"绿色低碳转型下重点行业减污降碳的健康协同效益研究"(批准号:2023M732228) （批准号:2023M732228）
2022年度济南市哲学社会科学课题"济南市打造碳达峰碳中和示范城市路径研究"(批准号:JNSK22B04). （批准号:JNSK22B04）
