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Journal Article

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

Authors
/persons/resource/xiaoxi.wang

Wang,  Xiaoxi
Potsdam Institute for Climate Impact Research;

Xu,  Meng
External Organizations;

Lin,  Bin
External Organizations;

/persons/resource/Bodirsky

Bodirsky,  Benjamin Leon
Potsdam Institute for Climate Impact Research;

Xuan,  Jiaqi
External Organizations;

/persons/resource/Jan.Dietrich

Dietrich,  Jan Philipp
Potsdam Institute for Climate Impact Research;

/persons/resource/stevanovic

Stevanović,  Miodrag
Potsdam Institute for Climate Impact Research;

Bai,  Zhaohai
External Organizations;

Ma,  Lin
External Organizations;

Jin,  Shuqin
External Organizations;

Fan,  Shenggen
External Organizations;

/persons/resource/Lotze-Campen

Lotze-Campen,  Hermann
Potsdam Institute for Climate Impact Research;

/persons/resource/Alexander.Popp

Popp,  Alexander
Potsdam Institute for Climate Impact Research;

External Ressource
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Fulltext (public)

27123oa.pdf
(Publisher version), 900KB

Supplementary Material (public)
There is no public supplementary material available
Citation

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. (2023): Reforming China’s fertilizer policies: implications for nitrogen pollution reduction and food security. - Sustainability Science, 18, 407-420.
https://doi.org/10.1007/s11625-022-01189-w


Cite as: https://publications.pik-potsdam.de/pubman/item/item_27123
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.