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<p>Reducing carbon emissions is an important part of responding to global warming. This study adopts the staggered difference-in-differences model, regarding the pilot policy for comprehensive utilization of crop straw as a “quasi-natural experiment”, and empirically studies the impact and mechanism of the pilot policy on carbon emissions. The main findings are as follows: First, the pilot policy for comprehensive straw utilization significantly reduces carbon dioxide emissions. Considering the nuances of actual implementation of pilot policies, we conducted a series of rigorous robustness tests to further confirm the reliability of the research results. Second, we investigate the underlying mechanisms and find that the policy’s environmental benefits are mediated through two principal channels: the optimization of industrial structure and the stimulation of technological innovation. Both pathways are found to be significant drivers of the observed carbon reduction, offering a comprehensive view of the policy’s transmission effects. Third, to further explore the complexity of the impact of pilot policies on carbon emission reduction, we conducted a heterogeneity analysis. The results show that in areas with high straw yield, widespread corn and wheat cultivation, and relatively low infrastructure construction levels, the pilot policies show more obvious carbon emission reduction effects.</p>

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The impact of china’s comprehensive crop residue utilization policy on carbon emissions: based on the staggered DID model

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • Xinyu Zhang,
  • Lujia Zhao,
  • Liming Chen,
  • Wenxin Wang

摘要

Reducing carbon emissions is an important part of responding to global warming. This study adopts the staggered difference-in-differences model, regarding the pilot policy for comprehensive utilization of crop straw as a “quasi-natural experiment”, and empirically studies the impact and mechanism of the pilot policy on carbon emissions. The main findings are as follows: First, the pilot policy for comprehensive straw utilization significantly reduces carbon dioxide emissions. Considering the nuances of actual implementation of pilot policies, we conducted a series of rigorous robustness tests to further confirm the reliability of the research results. Second, we investigate the underlying mechanisms and find that the policy’s environmental benefits are mediated through two principal channels: the optimization of industrial structure and the stimulation of technological innovation. Both pathways are found to be significant drivers of the observed carbon reduction, offering a comprehensive view of the policy’s transmission effects. Third, to further explore the complexity of the impact of pilot policies on carbon emission reduction, we conducted a heterogeneity analysis. The results show that in areas with high straw yield, widespread corn and wheat cultivation, and relatively low infrastructure construction levels, the pilot policies show more obvious carbon emission reduction effects.