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

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 Zusammenfassung: 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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Sprache(n): eng - Englisch
 Datum: 2022-05-242022-07-06
 Publikationsstatus: Online veröffentlicht
 Seiten: 14
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: 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
 Art des Abschluß: -

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Titel: Sustainability Science
Genre der Quelle: Zeitschrift, SCI, Scopus
 Urheber:
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: - Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/sustainability-science
Publisher: Springer Nature