China's Agricultural Sector Accounts for 40.2% of Country's Methane Emissions in 2020, New Research Reveals

Strategic Insights -

A new study from China University has shed light on the country's agricultural sector and its significant contribution to methane emissions. The research found that in 2020, China's agricultural sector accounted for 40.2% of the total methane emissions in the country. To mitigate this issue, the government launched the construction of national agricultural green development pilot zones (NAGDPZ) to promote sustainable agricultural production and development.

Key Takeaways:

  • China's agricultural sector accounted for 40.2% of the total methane emissions in the country in 2020.
  • The construction of national agricultural green development pilot zones (NAGDPZ) was initiated to reduce methane emissions and promote sustainable agricultural production and development.
  • The pilot zones resulted in a 9.88% reduction in emissions and a 1.10% decrease in emission intensity, according to a baseline difference-in-difference (DID) analysis conducted from 2013 to 2022.
  • The study found that mechanization, financial support, and low fertilizer usage in areas surrounding the pilot zones can enhance the mitigation effect of the pilots.
  • Conversely, industrial wastewater appeared to hinder the mitigation effect of the pilots.
  • The pilot zones showed a trend of expanding reductions in methane emissions, with a more pronounced impact in areas with low fertilizer usage, sparse population density, and non-resource-oriented localities.
  • Policies were found to be more effective in reducing emissions in areas with less precipitation and larger areas of wheat cultivation.

Statistics:

  • 40.2%: The percentage of total methane emissions in China accounted for by the agricultural sector in 2020.
  • 9.88%: The reduction in emissions achieved by the pilot zones through a baseline DID analysis.
  • 1.10%: The decrease in emission intensity achieved by the pilot zones through a baseline DID analysis.
  • 480 km: The distance beyond which the spatial spillover effects of the pilot zones on methane emissions were observed.
  • 2013-2022: The time period over which the baseline DID analysis was conducted to assess the impact of the pilot zones.

Sources:

  • Spatial spillover effects and impact mechanisms of methane emissions from agricultural soil in green agricultural development zone. Journal of Environmental Management, 2025;391:126476.