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Wang, X. [Author]; Xu, M. [Author]; Lin, B. [Author]; Bodirsky, B. [Author]; Xuan, J. [Author]; Dietrich, J. [Author]; Stevanović, M. [Author]; Bai, Z. [Author]; Ma, L. [Author]; Jin, S. [Author]; Fan, S. [Author]; Lotze-Campen, H. [Author]; Popp, A. [Author]

Reforming China’s fertilizer policies: implications for nitrogen pollution reduction and food security

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  • Media type: E-Article
  • Title: Reforming China’s fertilizer policies: implications for nitrogen pollution reduction and food security
  • Contributor: Wang, X. [Author]; Xu, M. [Author]; Lin, B. [Author]; Bodirsky, B. [Author]; Xuan, J. [Author]; Dietrich, J. [Author]; Stevanović, M. [Author]; Bai, Z. [Author]; Ma, L. [Author]; Jin, S. [Author]; Fan, S. [Author]; Lotze-Campen, H. [Author]; Popp, A. [Author]
  • Published: Publication Database PIK (Potsdam Institute for Climate Impact Research), 2023-01
  • Published in: Sustainability Science
  • Language: English
  • DOI: https://doi.org/10.1007/s11625-022-01189-w
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: Reactive nitrogen (N) is a requisite nutrient for agricultural production, but results in greenhouse gas and air and water pollution. The environmental and economic impacts of N fertilizer use in China are particularly relevant, as China consumes the largest amount of N fertilizer in the world to meet its soaring food demand. Here, we use an agro-economic land system model (MAgPIE) in combination with a difference-in-differences econometric model to provide a forward-looking assessment of China’s fertilizer policies in terms of removing fertilizer manufacturing subsidies and implementing measures to improve agricultural nutrient management efficiency. Our model results indicate that enhancing soil N uptake efficiency and manure recycled to soil alongside fertilizer subsidy removal can largely reduce N fertilizer use and N losses and abate N pollution in the short and long term, while food security remains largely unaffected. Enhancing soil N uptake efficiency appears to be decisive to achieving China’s national strategic target of zero growth in N fertilizer use. This study also finds that improving agricultural nutrient management efficiency contributes to higher land productivity and less cropland expansion, with substantial benefits for the environment and food security.
  • Access State: Open Access
  • Rights information: Attribution (CC BY)