Except for the East, other parts all showed an increasing trend, the Central, West and Northeast Part increased by 11.52%, 18.84% and 39.63%, respectively, and the main reason for this change was the promotion of urbanization on the occupation of agricultural land.
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Agriculture-Induced N<sub>2</sub>O Emissions and Reduction Strategies in China.
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The sentences
The curve of the Middle Reaches of the Yangtze River first shifted to the right, and then shifted to the left in 2019, indicating that the inter-provincial emission difference had an expanding trend from 2000 to 2015, but it showed a decreasing trend from 2015 to 2019.
The difference between regions of N 2 O emissions amount and the N 2 O emission intensity were gradually narrowing, and the differences in the North Coast, the East Coast and the Middle Reaches of the Yangtze River also had a clear trend of narrowing. 2007 was a key year for the reduction in N 2 O emissions in the agricultural system, whether it was the total amount of N 2 O emissions or the intensity of N 2 O emissions, the range of changes was obvious, which was a turning point for China’s agricultural N 2 O emission reduction and the realization of the dual carbon goal.
The research results show that the N 2 O emissions of China’s agricultural system showed a trend of increasing first and then decreasing, and in 2019, the national N 2 O emissions were 710,300 tons, agricultural land emissions and animal husbandry emissions were the main sources of N 2 O emissions.