Research on CH4 Emissions from Agricultural Activities in Anhui Province under"Dual Carbon"Goals
Based on the data of agricultural activity level in Anhui Province,using 2009 as the reference year and combining emission factors with rice field methane emission models,the methane emissions from agricultural activities in Anhui Province from 2009 to 2022 were estimated.The results show that the total agricultural methane emissions in Anhui Province from 2009 to 2022 were 1 042.67×104 tons,with an upward trend in general.The methane emissions from different agriculture are significantly different,with methane emissions from rice paddies accounting for the largest proportion,69%of the total emissions,methane emissions from animal intestinal fer-mentation accounting for 19%,and methane emissions from animal manure management accounting for about 12%.The mathematical modeling software Matlab was used to predict the methane emissions from rice paddies in Anhui Province in 2023.It was predicted that the methane emissions from rice paddies in Anhui Province in 2023 would be 52.59×104 tons,showing a downward trend of methane emissions from rice paddies in Anhui Province after the dual carbon goals were proposed.