Decreasing resilience of China’s coupled nitrogen–phosphorus cycling network requires urgent action

Decreasing resilience of China’s coupled nitrogen-phosphorus cycling network requires urgent action | Nature Food

Abstract

The coupled nature of the nitrogen (N) and phosphorus (P) cycling networks is of critical importance for sustainable food systems. Here we use material flow and ecological network analysis methods to map the N–P-coupled cycling network in China and evaluate its resilience. Results show a drop in resilience between 1980 and 2020, with further decreases expected by 2060 across different socio-economic pathways. Under a clean energy scenario with additional N and P demand, the resilience of the N–P-coupled cycling network would suffer considerably, especially in the N layer. China’s socio-economic system may also see greater N emissions to the environment, thus disturbing the N cycle and amplifying the conflict between energy and food systems given the scarcity of P. Our findings on scenario-specific synergies and trade-offs can aid the management of N- and P-cycling networks in China by reducing chemical fertilizer use and food waste, for example.

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Data availability

Data are mainly collected from (1) statistical yearbooks including China Statistical Yearbook, China Agricultural Yearbook, China Industrial Economic Statistical Yearbook and National Agricultural Product Cost Benefit Compilation; (2) international statistical databases including IIASA’s SSP database ( https://tntcat.iiasa.ac.at/SspDb/), FAOSTAT ( https://www.fao.org/faostat/zh/#home), and UN Comtrade ( https://comtradeplus.un.org/). All the data sources are publicly available. All data generated from this study are available on figshare via https://doi.org/10.6084/m9.figshare.24467494. Source data are provided with this paper.

Code availability

The computer codes generated from this study are available on figshare via https://doi.org/10.6084/m9.figshare.24467494.
Cordell, D., Drangert, J.-O. & White, S. The story of phosphorus: global food security and food for thought. Glob. Environ. Change 19, 292–305 (2009).
Erisman, J. W., Sutton, M. A., Galloway, J., Klimont, Z. & Winiwarter, W. How a century of ammonia synthesis changed the world. Nat. Geosci. 1, 636–639 (2008).
Galloway, J. N. et al. Transformation of the nitrogen cycle: recent trends, questions, and potential solutions. Science 320, 889–892 (2008).
National Bureau of Statistics of China. China Statistical Yearbook 2020 (China Statistics Press, 2020).
Barbieri, P., MacDonald, G. K., Bernard de Raymond, A. & Nesme, T. Food system resilience to phosphorus shortages on a telecoupled planet. Nat. Sustain. 5, 114–122 (2022).
Zou, T., Zhang, X. & Davidson, E. A. Global trends of cropland phosphorus use and sustainability challenges. Nature 611, 81–87 (2022).
Cordell, D. & White, S. Life’s bottleneck: sustaining the world’s phosphorus for a food secure future. Annu. Rev. Environ. Resour. 39, 161–188 (2014).
Zhang, X. et al. Managing nitrogen for sustainable development. Nature 528, 51–59 (2015).
Elser, J. & Bennett, E. A broken biogeochemical cycle. Nature 478, 29–31 (2011).
Peñuelas, J. & Sardans, J. The global nitrogen–phosphorus imbalance. Science 375, 266–267 (2022).
Luo, Z., Hu, S., Chen, D. & Zhu, B. From production to consumption: a coupled human-environmental nitrogen flow analysis in China. Environ. Sci. Technol. 52, 2025–2035 (2018).
Liu, X. et al. Intensification of phosphorus cycling in China since the 1600s. Proc. Natl Acad. Sci. USA 113, 2609–2614 (2016).
Bai, Z. et al. Changes in phosphorus use and losses in the food chain of China during 1950–2010 and forecasts for 2030. Nutr. Cycl. Agroecosystems 104, 361–372 (2016).
Cui, S., Shi, Y., Groffman, P. M., Schlesinger, W. H. & Zhu, Y.-G. Centennial-scale analysis of the creation and fate of reactive nitrogen in China (1910–2010). Proc. Natl Acad. Sci. USA 110, 2052–2057 (2013).
Liang, S. et al. Network resilience of phosphorus cycling in China has shifted by natural flows, fertilizer use and dietary transitions between 1600 and 2012. Nat. Food 1, 365–375 (2020).
Zhu, Z. et al. Integrated livestock sector nitrogen pollution abatement measures could generate net benefits for human and ecosystem health in China. Nat. Food 3, 161–168 (2022).
Schulte-Uebbing, L. F., Beusen, A. H. W., Bouwman, A. F. & de Vries, W. From planetary to regional boundaries for agricultural nitrogen pollution. Nature 610, 507–512 (2022).
Schleuss, P. M., Widdig, M., Heintz-Buschart, A., Kirkman, K. & Spohn, M. Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant-growth responses. Ecology 101, e03003 (2020).
Duhamel, S. et al. Phosphorus as an integral component of global marine biogeochemistry. Nat. Geosci. 14, 359–368 (2021).
Ulanowicz, R. E. The dual nature of ecosystem dynamics. Ecol. Model. 220, 1886–1892 (2009).
Penuelas, J., Janssens, I. A., Ciais, P., Obersteiner, M. & Sardans, J. Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health. Glob. Chang. Biol. 26, 1962–1985 (2020).
Krouk, G. & Kiba, T. Nitrogen and phosphorus interactions in plants: from agronomic to physiological and molecular insights. Curr. Opin. Plant Biol. 57, 104–109 (2020).
Kanter, D. R. & Brownlie, W. J. Joint nitrogen and phosphorus management for sustainable development and climate goals. Environ. Sci. Policy 92, 1–8 (2019).
Wolfram, P., Kyle, P., Zhang, X., Gkantonas, S. & Smith, S. Using ammonia as a shipping fuel could disturb the nitrogen cycle. Nat. Energy 7, 1112–1114 (2022).
Xu, C. et al. Future material demand for automotive lithium-based batteries. Commun. Mater. 1, 99 (2020).
Spears, B. M., Brownlie, W. J., Cordell, D., Hermann, L. & Mogollón, J. M. Concerns about global phosphorus demand for lithium-iron-phosphate batteries in the light electric vehicle sector. Commun. Mater. 3, 14 (2022).
Steffen, W. et al. Planetary boundaries: guiding human development on a changing planet. Science 347, 1259855 (2015).
Nyström, M. et al. Anatomy and resilience of the global production ecosystem. Nature 575, 98–108 (2019).
Ulanowicz, R. E. Growth and Development: Ecosystems Phenomenology (Springer, 1986).
Kharrazi, A., Rovenskaya, E. & Fath, B. Network structure impacts global commodity trade growth and resilience. PLoS ONE 12, e0171184 (2017).
Zeng, J. Thoughts on food security and financial countermeasures (in Chinese). Econ. Res. Ref. 3, 32–44 (2007).
Decision of the Central Committee of the Communist Party of China on several major issues in agriculture and rural work. Ministry of Agriculture and Rural Affairs of the People’s Republic of China
http://www.moa.gov.cn/ztzl/xzgnylsn/gd/200909/t20090923_1356562.htm(199….
Jiang, C. Y. & Wang, Y. China’s achievements, experience and thinking in promoting food security during 70 years since the founding of the People’s Republic of China (in Chinese). Agric. Econ. Prob. 10, 10–23 (2019).
Action plan for zero increase in fertilizer use by 2020. Ministry of Agriculture
https://www.gov.cn/xinwen/2015-12/21/content_5026037.htm(2015).
Bai, Z. et al. China’s livestock transition: driving forces, impacts, and consequences. Sci. Adv. 4, eaar8534 (2018).
Wang, M., Kroeze, C., Strokal, M. & Ma, L. Reactive nitrogen losses from China’s food system for the shared socioeconomic pathways (SSPs). Sci. Total Environ. 605–606, 884–893 (2017).
Zhao, H. et al. China’s future food demand and its implications for trade and environment. Nat. Sustain. 4, 1042–1051 (2021).
Ritchie, H., Roser, M. & Rosado, P. Fertilizers. Our World in Data
https://ourworldindata.org/fertilizers(2022).
van Grinsven, H. J. M. et al. Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates. Nat. Food 3, 122–132 (2022).
Hossain, M. Z. et al. Biochar and its importance on nutrient dynamics in soil and plant. Biochar 2, 379–420 (2020).
Huang, Y. et al. The shift of phosphorus transfers in global fisheries and aquaculture. Nat. Commun. 11, 355 (2020).
Goda, A., Saad, A., Hanafy, M., Sharawy, Z. & El-Haroun, E. Dietary effects of Azolla pinnata combined with exogenous digestive enzyme (DigestinTM) on growth and nutrients utilization of freshwater prawn, Macrobrachium rosenbergii (de Man. 1879). J. Oceanol. Limnol. 36, 1434–1441 (2018).
Nagappan, S. et al. Potential of microalgae as a sustainable feed ingredient for aquaculture. J. Biotechnol. 341, 1–20 (2021).
Sarker, P. K. et al. Microalgae-blend tilapia feed eliminates fishmeal and fish oil, improves growth, and is cost viable. Sci. Rep. 10, 19328 (2020).
Gustavsson, J. et al. Global Food Losses and Food Waste—Extent, Causes and Prevention (FAO, 2011).
Xue, L. et al. China’s food loss and waste embodies increasing environmental impacts. Nat. Food 2, 519–528 (2021).
Law of the People’s Republic of China on Food Waste. The National People’s Congress of the People’s Republic of China
http://www.npc.gov.cn/npc/c2/c30834/202104/t20210429_311263.html(2021).
Climate change and land. IPCC
https://www.ipcc.ch/srccl(2019).
Chang, J. et al. Reconciling regional nitrogen boundaries with global food security. Nat. Food 2, 700–711 (2021).
Fath, B. D. Quantifying economic and ecological sustainability. Ocean Coast. Manag. 108, 13–19 (2015).
Fang, D. & Chen, B. Ecological network analysis for a virtual water network. Environ. Sci. Technol. 49, 6722–6730 (2015).
Goerner, S. J., Lietaer, B. & Ulanowicz, R. E. Quantifying economic sustainability: implications for free-enterprise theory, policy and practice. Ecol. Econ. 69, 76–81 (2009).
Chen, S. & Chen, B. Urban energy–water nexus: a network perspective. Appl. Energy 184, 905–914 (2016).
Sheng, Y. & Song, L. Agricultural production and food consumption in China: a long-term projection. China Econ. Rev. 53, 15–29 (2019).
SSP database. International Institute for Applied Systems Analysis
https://tntcat.iiasa.ac.at/SspDb/(2018).
MacFarlane, D. R. et al. A roadmap to the ammonia economy. Joule 4, 1186–1205 (2020).
Ammonia Technology Roadmap Towards More Sustainable Nitrogen Fertiliser Production (International Energy Agency, 2021).
Zhou, H., Liu, Z., Cheng, M., Zhou, M. & Liu, R. Influence of coke combustion on NOx emission during iron ore sintering. Energy Fuels 29, 974–984 (2015).
Yang, X., Nielsen, C. P., Song, S. & McElroy, M. B. Breaking the hard-to-abate bottleneck in China’s path to carbon neutrality with clean hydrogen. Nat. Energy 7, 955–965 (2022).
In-depth report on new energy materials industry: lithium iron phosphate revival, triple opportunities for phosphorus chemical industry (in Chinese). The Founder Securities Company
http://finance.sina.com.cn/stock/stockzmt/2021-08-01/doc-ikqciyzk892905….
2021–2027 China lithium hexafluorophosphate industry market research analysis and investment strategic planning report (in Chinese). The Smart Research Consulting Company
https://www.chyxx.com/research/202101/925289.html(2021).
Kober, T., Schiffer, H. W., Densing, M. & Panos, E. Global energy perspectives to 2060—WEC’s World Energy Scenarios 2019. Energy Strategy Rev. 31, 100523 (2020).

Acknowledgements

S.H. acknowledges funding from the National Key R and D Program of China (2018YFC1903801), Y.Y. acknowledges funding from the National Natural Science Foundation of China (72074077 and 72140006), B.Z. acknowledges funding from the National Natural Science Foundation of China (41661144023) and S.L. acknowledges funding from the National Natural Science Foundation of China (72293602 and 72293600).

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Nature Food thanks Vilma Sandström and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.

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Supplementary information

Supplementary Information

Supplementary Methods, Figs. 1–11, Tables 2–21, Notes and References.

Supplementary Table 1

The list of nodes in the China’ s N- and P-coupled cycling network.

Source data

Source Data Fig. 3

Historical trends and future evolution of resilience of N- and P-cycling networks in China during 1980–2060.

Source Data Fig. 4

Nodes influencing the resilience of the N–P-coupled cycling network in China during 1980–2020 and specific time periods.

Source Data Fig. 5

Structural indicators of the N–P-coupled cycling network in 2060 under the SSP scenarios and changes in the network resilience compared with that in 2020.

Source Data Fig. 6

Changes in the resilience of the N–P-coupled cycling network under different measures in comparison with the baseline year of 2020.

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Luo, Z., Yu, Y., Kharrazi, A. et al. Decreasing resilience of China’s coupled nitrogen–phosphorus cycling network requires urgent action. Nat Food (2024). https://doi.org/10.1038/s43016-023-00889-5
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DOI: https://doi.org/10.1038/s43016-023-00889-5