| In recent years,global warming has become increasingly serious,and more and more greenhouse gases are emitted.Countries around the world take measures to save energy and reduce emissions.Agricultural production is one of the main sources of greenhouse gases.China’s long-term traditional agricultural planting methods have led to different types of pollution emissions from agricultural sectors,directly or indirectly increasing the total carbon emissions in China.How to reduce agricultural carbon emissions under the condition that China’s food production is not reduced?Technological progress is the breakthrough to solve this problem.This paper mainly studies the main grain producing areas in China.First of all,it discusses the current situation of agricultural development in the main grain-producing areas in China,and calculates the agricultural total factor productivity(ATFP)of the main grain-producing areas in 2003-2020 by using the DEA-Malmquist index method.It is found that the agricultural factor productivity index(ATFPCH)of the Chinese main grain producing areas is more than 1;Secondly,the emission factor method is used to calculate the total amount and intensity of agricultural carbon emissions in China’s major grain-producing areas from 2003 to 2020.The study found that the total amount of agricultural carbon emissions in China’s main grain production areas showed an inverted "U" shape change,and the intensity of agricultural carbon emissions continued to drop;Thirdly,the relationship between agricultural technology progress and agricultural carbon emissions is analyzed by using Feasible generalized least squares estimation method,and it is verified that the differences of agricultural technology progress between regions have different impacts on agricultural carbon emissions;Finally,it examines the regulatory role of environmental regulation in the impact of agricultural technological progress on greenhouse gas emissions,and tests the robustness of empirical analysis to strive for guaranteed results.The results appear as shown below: First,in terms of the change of agricultural total factor productivity(ATFP),From 2003 to 2020,the total factor productivity of agriculture in China’s major grain-producing areas was increasing,and increased by an average of 3.1%.The Malmquist index showed a "U" type change trend,and the change of ATFP in different provinces was quite different;Second,from the perspective of total agricultural carbon emissions,from 2004 to 2015,China’s major grain-producing areas showed positive growth,and the growth rate has changed from positive to negative since 2015.The agricultural carbon emission intensity of China’s major grainproducing areas and provinces has generally weakened,with the average carbon emission intensity decreasing from 0.26 tons/10000 yuan in 2003 to 0.07 tons/10000 yuan in 2020;Third,Third,in China’s major grain-producing areas,the impact of agricultural technology progress on agricultural carbon emissions is obvious negative,and the regression coefficient estimated by FGLS is-0.064,and there is obvious regional difference in this impact.In different regions,the higher the technical level,the more obvious the carbon reduction effect;Fourth,environmental regulation plays a negative regulatory role between agricultural technology and agricultural carbon emissions,in other words,environmental regulation can strengthen the inhibition of agricultural technology progress on agricultural carbon emissions.Based on the conclusion analyzed above,the following countermeasures are proposed: First of all,improve agricultural technology according to local conditions and improve investment in scientific and technological research and development;The second is to encourage green technology innovation and give impetus to transformation and upgrading of agricultural industry;Third,improve the level of environmental supervision,develop the awareness of environmental protection of local residents,and in order to achieve the dual-carbon goal,we should continue to develop low-carbon agriculture. |