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

Wang, X., Xu, M., Lin, B., Bodirsky, B. L., Xuan, J., Dietrich, J. P., Stevanović, M., Bai, Z., Ma, L., Jin, S., Fan, S., Lotze-Campen, H., Popp, A. (2022 online): Reforming China’s fertilizer policies: implications for nitrogen pollution reduction and food security. - Sustainability Science.
https://doi.org/10.1007/s11625-022-01189-w

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 Creators:
Wang, Xiaoxi1, Author              
Xu, Meng2, Author
Lin, Bin2, Author
Bodirsky, Benjamin Leon1, Author              
Xuan, Jiaqi2, Author
Dietrich, Jan Philipp1, Author              
Stevanović, Miodrag1, Author              
Bai, Zhaohai2, Author
Ma, Lin2, Author
Jin, Shuqin2, Author
Fan, Shenggen2, Author
Lotze-Campen, Hermann1, Author              
Popp, Alexander1, Author              
Affiliations:
1Potsdam Institute for Climate Impact Research, ou_persistent13              
2External Organizations, ou_persistent22              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2022-05-242022-07-06
 Publication Status: Published online
 Pages: 14
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: MDB-ID: pending
PIKDOMAIN: RD2 - Climate Resilience
PIKDOMAIN: RD3 - Transformation Pathways
Organisational keyword: RD2 - Climate Resilience
Organisational keyword: RD3 - Transformation Pathways
Working Group: Land Use and Resilience
Research topic keyword: Food & Agriculture
Research topic keyword: Land use
Regional keyword: Asia
Model / method: MAgPIE
OATYPE: Hybrid Open Access
DOI: 10.1007/s11625-022-01189-w
 Degree: -

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Title: Sustainability Science
Source Genre: Journal, SCI, Scopus
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/sustainability-science
Publisher: Springer Nature