Cropland is a major source of global nitrogen pollution. This paper synthesizes 1,521 field observations to identify 11 key measures to reduce nitrogen losses by 30–70%, increase crop yield and nitrogen use efficiency, and generate a global societal benefit of 476 ± 123 billion USD, with net mitigation costs of only 19 ± 5 billion USD. A nitrogen credit system is proposed to incentivize the adoption of these measures.
Publisher
Nature
Published On
Jan 05, 2023
Authors
Baojing Gu, Xiuming Zhang, Shu Kee Lam, Yingliang Yu, Hans J. M. van Grinsven, Shaohui Zhang, Xiaoxi Wang, Benjamin Leon Bodirsky, Sitong Wang, Jiakun Duan, Chenchen Ren, Lex Bouwman, Wim de Vries, Jianming Xu, Mark A. Sutton, Deli Chen
Tags
nitrogen pollution
cropland
crop yield
nitrogen use efficiency
societal benefit
mitigation costs
nitrogen credit system
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