水土保持通报2024，Vol.44Issue(1)：378-388,11.DOI:10.13961/j.cnki.stbctb.20240008.002
中国农业农村碳中和效应时空分异与动态演进特征
Spatial-temporal Differentiation and Dynamic Evolution Characteristics of Carbon Neutral Effect in Agriculture and Rural Areas of China
摘要
Abstract
[Objective]The change characteristics and dynamic evolution trend of carbon neutral effect in 30 provinces(municipalities and regions)in China from 2000 to 2020 were analyzed,and the characteristics and internal motivation mechanism of ecological environment in agriculture and rural area were quantitatively revealed,in order to provide theoretical basis for further promoting the process of"carbon neutral"in agriculture and rural areas of China.[Methods]Based on the perspective of large agricultural production systems,37 types of carbon sources and 28 types of carbon sinks were selected by the emission coefficient method to calculate the carbon neutrality effect for agriculture and rural areas in 30 provinces(municipalities and regions)in China during 2000-2020.The spatial and temporal distribution characteristics of the carbon neutrality effect were determined,and its dynamic evolution characteristics were observed by the Kernel-Density method.[Results]① The carbon neutral effect in China's agriculture and rural areas increased steadily over time,with an average annual increase of 2.79％.The overall growth rate fluctuated,and the growth rate of carbon sinks was significantly faster than the growth rate of carbon emissions.② The spatial imbalance of the carbon neutral effect in China's agriculture and rural areas increased significantly,showing a distribution pattern of"lower in the middle and higher in the periphery".The difference between provinces was obvious:the top 10 provinces(municipalities and regions)accounted for 66.42％of the national carbon neutral effect,while the bottom 10 provinces(municipalities and regions)accounted for only 4.72％of the national carbon neutrality effect.③ The level of the carbon neutrality effect showed a distribution trend of"central region＞eastern region＞western region",and there were great differences between different regions.The planting industry was the largest source of emission reduction and sink increase.④ The center of the carbon neutrality effect density function curve in China's agriculture and rural areas had shifted to the right as a whole,and the spatial gap between provinces(municipalities and regions)has gradually expanded.Unbalanced regional development was observed.[Conclusion]Low-carbon economy and modern agriculture are intertwined.All regions should formulate carbon neutral development plans in agriculture and rural areas according to local conditions,bring about an inter-regional carbon neutral coordination mechanism,and accelerate the process of carbon neutral in agriculture and in rural areas.关键词
农业农村/碳中和效应/时空分异/动态演进特征/中国Key words
agriculture and rural areas/carbon neutral effect/spatial-temporal differentiation/dynamic evolution characteristics/China分类
资源环境引用本文复制引用
熊媛媛,苏洋..中国农业农村碳中和效应时空分异与动态演进特征[J].水土保持通报,2024,44(1):378-388,11.基金项目
国家自然科学基金项目"西北欠发达地区农业碳排放增长机理与减排政策体系研究:基于新疆农户调查分析"(71640031) （71640031）
新疆维吾尔自治区"天山青年计划"培养项目"食品安全源头治理中农户低碳生产行为决策与激励机制研究"(2020Q074) （2020Q074）
