文献类型： 外文期刊

作者： Gu, Baojing ¹ ; Zhang, Xiuming ³ ; Lam, Shu Kee ³ ; Yu, Yingliang ⁴ ; van Grinsven, Hans J. M. ⁵ ; Zhang, Shaohui ⁶ ; Wang, Xiaoxi ⁸ ; Bodirsky, Benjamin Leon ¹⁰ ; Wang, Sitong ¹ ; Duan, Jiakun ¹ ; Ren, Chenchen ² ; Bouwman, Lex ⁵ ; de Vries, Wim ¹² ; Xu, Jianming ¹ ; Sutton, Mark A. ¹⁴ ; Chen, Deli ³ ;

作者机构： 1.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou, Peoples R China

2.Zhejiang Univ, Policy Simulat Lab, Hangzhou, Peoples R China

3.Univ Melbourne, Sch Agr & Food, Melbourne, Vic, Australia

4.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Agr Environm Lower Reaches Yangtze River, Nanjing, Peoples R China

5.PBL Netherlands Environm Assessment Agcy, The Hague, Netherlands

6.Beihang Univ, Sch Econ & Management, Beijing, Peoples R China

7.Int Inst Appl Syst Anal, Laxenburg, Austria

8.Zhejiang Univ, China Acad Rural Dev, Hangzhou, Peoples R China

9.Zhejiang Univ, Sch Publ Affairs, Dept Agr Econ & Management, Hangzhou, Peoples R China

10.Potsdam Inst Climate Impact Res PIK, Potsdam, Germany

11.Univ Utrecht, Fac Geosci, Dept Earth Sci Geochem, Utrecht, Netherlands

12.Wageningen Univ & Res, Environm Syst Anal Grp, Wageningen, Netherlands

13.Zhejiang Univ, Zhejiang Prov Key Lab Agr Resources & Environm, Hangzhou, Peoples R China

14.UK Ctr Ecol & Hydrol, Edinburgh Res Stn, Penicuik, Midlothian, Scotland

期刊名称：NATURE （ 影响因子：64.8； 五年影响因子：60.9 ）

ISSN： 0028-0836

年卷期： 2023 年 613 卷 7942 期

页码：

收录情况： SCI

摘要： Cropland is a main source of global nitrogen pollution(1,2). Mitigating nitrogen pollution from global croplands is a grand challenge because of the nature of non point-source pollution from millions of farms and the constraints to implementing pollution-reduction measures, such as lack of financial resources and limited nitrogen management knowledge of farmers3. Here we synthesize 1,521 field observations worldwide and identify 11 key measures that can reduce nitrogen losses from croplands to air and water by 30-70%, while increasing crop yield and nitrogen use efficiency (NUE) by 10-30% and 10-80%, respectively. Overall, adoption of this package of measures on global croplands would allow the production of 17 +/- 3 Tg (10(12) g) more crop nitrogen (20% increase) with 22 +/- 4 Tg less nitrogen fertilizer used (21% reduction) and 26 +/- 5 Tg less nitrogen pollution (32% reduction) to the environment for the considered base year of 2015. These changes could gain a global societal benefit of 476 +/- 123 billion US dollars (USD) for food supply, human health, ecosystems and climate, with net mitigation costs of only 19 +/- 5 billion USD, of which 15 +/- 4 billion USD fertilizer saving offsets 44% of the gross mitigation cost. To mitigate nitrogen pollution from croplands in the future, innovative policies such as a nitrogen credit system (NCS) could be implemented to select, incentivize and, where necessary, subsidize the adoption of these measures.