您好，欢迎访问中国农业科学院 机构知识库！

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Localized nitrogen management strategies can halve fertilizer use in Chinese staple crop production

文献类型： 外文期刊

作者： Liu, Yize 1 ; Zhuang, Minghao 2 ; Liang, Xia 4 ; Lam, Shu Kee 4 ; Chen, Deli 4 ; Malik, Arunima 6 ; Li, Mengyu 6 ; Lenzen, Manfred 6 ; Zhang, Liying 1 ; Zhang, Rui 2 ; Zhang, Lixiao 1 ; Hao, Yan 1 ;

作者机构： 1.Beijing Normal Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing, Peoples R China

2.China Agr Univ, Coll Resources & Environm Sci, State Key Lab Nutrient Use & Management, Key Lab Plant Soil Interact,Minist Educ, Beijing, Peoples R China

3.China Agr Univ, Natl Acad Agr Green Dev, Beijing, Peoples R China

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

5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arid & Semiarid A, Field Sci Observat & Expt Stn Ecol Agr Miyun, Beijing, Peoples R China

6.Univ Sydney, Sch Phys, ISA, Sydney, NSW, Australia

7.Univ Sydney, Sydney Business Sch, Discipline Accounting, Sydney, NSW, Australia

期刊名称：NATURE FOOD （ 影响因子：21.9； 五年影响因子：28.3 ）

ISSN：

年卷期： 2024 年 5 卷 10 期

页码：

收录情况： SCI

摘要： Nitrogen (N) management is the key to achieving food security and environmental sustainability. Here we analyse N flows using a localized N management model for wheat, maize and rice in 1,690 Chinese counties, with a breakdown of multiple reactive N (Nr) loss pathways. Results show that the total N input for producing these three staple crops in China was 22.2 Tg N in 2015, of which 7.4 Tg N was harvested as grain N and 4.0 Tg N was Nr losses in the forms of NH3 (47%), NOx (10%), N2O (3%), and leaching and runoff (40%). By assuming a production level equivalent to that of the top 10% of counties with the highest N use efficiency and yields surpassing the regional average, we reveal the possibility of achieving national staple crop production targets while improving net ecosystem economic benefit in 2050 through a 49% reduction (10.4 Tg N) in synthetic N fertilizer inputs and a 52% decrease (2.9 Tg N) in Nr losses. Staple crop production in China involves high levels of synthetic fertilizer use and losses to the environment. Using a localized nitrogen management model for wheat, maize and rice, this study estimates the environmental and economic benefits of improving nitrogen use efficiency at the county level.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台