Co-benefits for net carbon emissions and rice yields through improved management of organic nitrogen and water
文献类型： 外文期刊
作者： Liu, Bin 1 ; Guo, Chaoyi 1 ; Xu, Jie 1 ; Zhao, Qingyue 3 ; Chadwick, David 4 ; Gao, Xiaopeng 5 ; Zhou, Feng 6 ; Lakshmanan, Prakash 2 ; Wang, Xiaozhong 1 ; Guan, Xilin 3 ; Zhao, Huanyu 1 ; Fang, Linfa 1 ; Li, Shiyang 2 ; Bai, Zhaohai 9 ; Ma, Lin 2 ; Chen, Xuanjing 3 ; Cui, Zhenling 3 ; Shi, Xiaojun 1 ; Zhang, Fusuo 2 ; Chen, Xinping 1 ; Li, Zhaolei 1 ;
作者机构： 1.Southwest Univ, Acad Agr Sci, Coll Resources & Environm, Chongqing, Peoples R China
2.Southwest Univ, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing, Peoples R China
3.China Agr Univ, Natl Acad Agr Green Dev, Coll Resources & Environm Sci, Key Lab Plant Soil Interact,Minist Educ,State Key, Beijing, Peoples R China
4.Bangor Univ, Sch Nat Sci, Bangor, Wales
5.Univ Manitoba, Dept Soil Sci, Winnipeg, MB, Canada
6.Peking Univ, Coll Urban & Environm Sci, Sino France Inst Earth Syst Sci, Lab Earth Surface Proc, Beijing, Peoples R China
7.Guangxi Acad Agr Sci, Sugarcane Res Inst, Key Lab Sugarcane Biotechnol & Genet Improvement G, Guangxi Key Lab Sugarcane Genet Improvement,Minist, Nanning, Peoples R China
8.Univ Queensland, Queensland Alliance Agr & Food Innovat, St Lucia, Qld, Australia
9.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Key Lab Agr Water Resources, Shijiazhuang, Peoples R China
10.Minist Agr & Rural Affairs, Key Lab Low Carbon Green Agr Southwestern China, Chongqing, Peoples R China
期刊名称：NATURE FOOD （ 影响因子：23.2； 五年影响因子：23.2 ）
ISSN：
年卷期： 2024 年 5 卷 3 期
页码：
收录情况： SCI
摘要： Returning organic nutrient sources (for example, straw and manure) to rice fields is inevitable for coupling crop-livestock production. However, an accurate estimate of net carbon (C) emissions and strategies to mitigate the abundant methane (CH4) emission from rice fields supplied with organic sources remain unclear. Here, using machine learning and a global dataset, we scaled the field findings up to worldwide rice fields to reconcile rice yields and net C emissions. An optimal organic nitrogen (N) management was developed considering total N input, type of organic N source and organic N proportion. A combination of optimal organic N management with intermittent flooding achieved a 21% reduction in net global warming potential and a 9% rise in global rice production compared with the business-as-usual scenario. Our study provides a solution for recycling organic N sources towards a more productive, carbon-neutral and sustainable rice-livestock production system on a global scale. Organic nitrogen (N) sources management is critical to achieve high rice yield and carbon (C) neutrality. This study scaled up the field findings using machine learning and showed that the co-benefits of improved rice yield and reduced net C emission can be realized with integrated management of organic N and water on a global scale.
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