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Mitigation potential and social benefits of NH3 emission reduction strategies in maize croplands

文献类型：期刊论文

作者Hao, Tianxiang1; Zhang, Yangyang2,3; Liu, Yidi3; Liu, Xuejun3
刊名EUROPEAN JOURNAL OF AGRONOMY
出版日期2026-02-01
卷号173页码:127913
关键词Ammonia mitigation Potential and social benefits Maize
ISSN号1161-0301
DOI10.1016/j.eja.2025.127913
产权排序1
文献子类Article
英文摘要Ammonia (NH3) emissions from maize fields are a significant source of reactive nitrogen (N) loss and pose a critical challenge for cropland N management, particularly in intensively farmed regions such as the North China Plain (NCP). Although various NH3 mitigation strategies have been proposed, studies that have comprehensively evaluated their agronomic and socioeconomic trade-offs under consistent field conditions are limited. Here, a five-year field experiment on maize was conducted in Quzhou County, NCP, a global NH3 emission hotspot and a major maize-producing region in China, to evaluate the effectiveness of six representative mitigation practices, including reducing N application rate (OU-SB), replacing urea with organic fertilizer (OR-SB), applying calcium ammonium nitrate (CAN-SB), controlled-release urea (CRU-SB), urease-inhibiting urea (UI-SB), and deep placement of urea (OU-DP). Conventional farmer practice (CU-SB) and a non-N control were also included as references. Compared with CU-SB, five of six mitigation treatments (except for OU-SB) significantly reduced NH3 emissions by 47-74 % and yield-scaled NH3 emission by 52-77 %, while maintaining or improving grain N content, plant N uptake, grain yield, and N use efficiencies. Implementing these practices across all maize areas in Quzhou could reduce NH3-N by 501-1431 t and generate US$2.15-5.66 million in social benefits, along with increased production benefits (except for OU-SB). Among those practices, CRU-SB, UI-SB, and CAN-SB were most effective, achieving the lowest cumulative NH3 emissions (16.8-20.1 kg NH3-N ha- 1) and yield-scaled emissions (1.7-1.9 g NH3-N kg- 1 grain), thereby generating highest mitigation potential and social benefits in Quzhou maize, in addition to increased production benefits. Overall, CRU-SB is recommended for its superior greenhouse gas mitigation potential. These results highlight the potential role of optimized N management in reducing NH3 emissions and generating social co-benefits in maize croplands, providing offer practical guidance for local farmers and policymakers. Although plot-based findings are promising, further validation at broader farm scales is required prior to regional implementation.
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WOS关键词AMMONIA VOLATILIZATION ; GREENHOUSE-GAS ; USE EFFICIENCY ; COATED UREA ; NITROGEN ; TILLAGE ; MANURE ; CHINA ; FIELD ; FERTILIZATION
WOS研究方向Agriculture
语种英语
WOS记录号WOS:001620266800001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/217730]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Hao, Tianxiang; Liu, Xuejun
作者单位1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.Renmin Univ China, Sch Chem & Life Resources, Beijing 100872, Peoples R China;
3.China Agr Univ, Natl Acad Agr Green Dev, Beijing Key Lab Farmland Soil Pollut Prevent &, Coll Resources & Environm Sci,Key Lab Plant Soil, Beijing 100193, Peoples R China
推荐引用方式
GB/T 7714		 Hao, Tianxiang,Zhang, Yangyang,Liu, Yidi,et al. Mitigation potential and social benefits of NH3 emission reduction strategies in maize croplands[J]. EUROPEAN JOURNAL OF AGRONOMY,2026,173:127913.
APA Hao, Tianxiang,Zhang, Yangyang,Liu, Yidi,&Liu, Xuejun.(2026).Mitigation potential and social benefits of NH3 emission reduction strategies in maize croplands.EUROPEAN JOURNAL OF AGRONOMY,173,127913.
MLA Hao, Tianxiang,et al."Mitigation potential and social benefits of NH3 emission reduction strategies in maize croplands".EUROPEAN JOURNAL OF AGRONOMY 173(2026):127913.

入库方式： OAI收割

来源：地理科学与资源研究所

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