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    经济经纬 2025 Issue (3) :17-28
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    农业三项补贴改革的环境效应评估:以化肥减量为例
魏祖大, 张露
华中农业大学 经济管理学院,湖北 武汉 430070
    Assessment of the Environmental Effects of Three Agricultural Subsidy Reforms: Taking Fertilizer Reduction as an Example
    WEI Zuda, ZHANG Lu
School of Economics and Management, Huazhong Agricultural University, Wuhan 430070, China
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摘要 利用2007—2022年省级面板数据,构建双重差分模型,以化肥减量为例,评估了农业三项补贴改革的环境效应。结果表明:农业三项补贴改革能够显著降低化肥用量,平均而言,该项改革使得处理组化肥用量下降了5.1%;在经过多重稳健性检验后,该结果依然稳健。异质性分析发现:对不同类型化肥而言,农业三项补贴改革更有助于降低氮肥、磷肥和钾肥用量,而对复合肥用量的影响较小;对不同地区而言,在非粮食主产区及化肥用量低分位点的地区,农业三项补贴改革的环境效应更为明显。作用机制分析发现:农业三项补贴改革主要通过扩大经营规模、提高种粮比例和提升耕地质量实现化肥减量。研究结论可为农业支持保护补贴政策优化,以及更好发挥规模经营补贴和耕地地力保护补贴效能提供有益启示。
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魏祖大
张露
关键词农业三项补贴改革   环境效应   化肥减量   经营规模     
Abstract: Using provincial panel data from 2007 to 2022, a double-difference model is constructed to assess the environmental effects of three agricultural subsidy reforms, with chemical fertilizer reductions serving as an example. The results show that the three agricultural subsidy reforms can significantly reduce chemical fertilizer use. On average, the reforms reduce chemical fertilizer use in the treatment group by 5.1%. After multiple robustness tests, the results remain credible. Heterogeneous analysis indicates that the three agricultural subsidy reforms more effectively reduce the usage of nitrogen, phosphorus and potassium fertilizers than compound fertilizer usage, while it has a smaller impact on compound fertilizer usage. Additionally, the environmental effects of these reforms are more pronounced in non-major grain production areas and in regions with low fertilizer usage percentiles. Mechanism analysis demonstrates that the three agricultural subsidy reforms primarily achieve fertilizer reduction by expanding farm scale, increasing the proportion of grain cultivation and improving farmland quality. The research findings offer valuable insights for enhancing agricultural support and protection subsidy policies, and for better leveraging the effectiveness of subsidies for scaled farming operations and farmland fertility protection.
KeywordsAgriculture Three Subsidies Reform   Environmental Effect   Fertilizer Reduction   Scale of Operation     
收稿日期 2024-12-17; 接受日期 ;
基金资助:国家自然科学基金面上项目(72473049,42071157)
通讯作者 张露(1987— ),女,湖北宜昌人,博士,教授,博士生导师,主要从事农业资源与环境经济研究。   
作者简介: 魏祖大(1998— ),男,土家族,湖北恩施人,博士研究生,主要从事农业资源与环境经济研究。
引用本文:   
魏祖大, 张露.农业三项补贴改革的环境效应评估:以化肥减量为例[J].  经济经纬, 2025,3: 17-28
WEI Zuda, ZHANG Lu.Assessment of the Environmental Effects of Three Agricultural Subsidy Reforms: Taking Fertilizer Reduction as an Example[J]  Economic Survey, 2025,V42(3): 17-28
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http://www.jjjw.org.cn/CN/     或     http://www.jjjw.org.cn/CN/Y2025/V42/I3/17
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