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Network resilience of phosphorus cycling in China has shifted by natural flows, fertilizer use and dietary transitions between 1600 and 2012
Nature Food ( IF 23.2 ) Pub Date : 2020-06-17 , DOI: 10.1038/s43016-020-0098-6
Sai Liang 1 , Yadong Yu 2 , Ali Kharrazi 3, 4 , Brian D Fath 3, 5, 6 , Cuiyang Feng 1 , Glen T Daigger 7 , Shaoqing Chen 8, 9 , Tieju Ma 2, 3 , Bing Zhu 3, 10 , Zhifu Mi 11 , Zhifeng Yang 1, 12
Affiliation  

The resilience of the phosphorus (P) cycling network is critical to ecosystem functioning and human activities. Although P cycling pathways have been previously mapped, a knowledge gap remains in evaluating the P network’s ability to withstand shocks or disturbances. Applying principles of mass balance and ecological network analysis, we examine the network resilience of P cycling in China from 1600 to 2012. The results show that changes in network resilience have shifted from being driven by natural P flows for food production to being driven by industrial P flows for chemical fertilizer production. Urbanization has intensified the one-way journey of P, further deteriorating network resilience. Over 2000–2012, the network resilience of P cycling has decreased by 11% owing to dietary changes towards more animal-based foods. A trade-off between network resilience improvement and increasing food trade is also observed. These findings can support policy decisions for enhanced P cycling network resilience in China.

更新日期:2020-06-17
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