文献类型： 外文期刊

作者： Qian, Haoyu ¹ ; Yuan, Zhengqi ¹ ; Chen, Nana ¹ ; Zhu, Xiangcheng ² ; Huang, Shan ³ ; Lu, Changying ⁵ ; Liu, Kailou ⁶ ; Zhou, Feng ⁷ ; Smith, Pete ⁸ ; Tian, Hanqin ⁹ ; Xu, Qiang ¹⁰ ; Zou, Jianwen ¹¹ ; Liu, Shuwei ¹¹ ; Song, Zhenwei ¹² ; Zhang, Weijian ¹² ; Wang, Songhan ¹ ; Liu, Zhenghui ¹ ; Li, Ganghua ¹ ; Shang, Ziyin ¹² ; Ding, Yanfeng ¹ ; van Groenigen, Kees Jan ¹³ ; Jiang, Yu ¹ ;

作者机构： 1.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Modern Crop Prod, Key Lab Crop Physiol & Ecol Southern China, Nanjing, Jiangsu, Peoples R China

2.Yichun Univ, Coll Life Sci & Resource Environm, Dept Agron, Yichun, Peoples R China

3.Jiangxi Agr Univ, Minist Educ, Nanchang, Peoples R China

4.Jiangxi Agr Univ, Jiangxi Key Lab Crop Physiol Ecol & Genet Breeding, Nanchang, Peoples R China

5.Suzhou Acad Agr Sci, Inst Agr Sci Taihu Lake Reg Jiangsu, Natl Agr Expt Stn Soil Qual, Suzhou, Peoples R China

6.Jiangxi Inst Red Soil & Germplasm Resources, Nanchang, Peoples R China

7.Peking Univ, Inst Carbon Neutral, Sino French Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing, Peoples R China

8.Univ Aberdeen, Inst Biol & Environm Sci, Aberdeen, Scotland

9.Boston Coll, Dept Earth & Environm Sci, Schiller Inst Integrated Sci & Soc, Ctr Earth Syst Sci & Global Sustainabil, Chestnut Hill, MA 02467 USA

10.Yangzhou Univ, Agr Coll,Jiangsu Key Lab Crop Cultivat & Physiol, Res Inst Rice Ind Engn Technol,Jiangsu Key Lab Cro, Jiangsu Coinnovat Ctr Modern Prod Technol Grain Cr, Yangzhou, Peoples R China

11.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing, Peoples R China

12.Chinese Acad Agr Sci, Inst Crop Sci, Beijing, Peoples R China

13.Univ Exeter, Dept Geog, Fac Environm Sci & Econ, Exeter, Devon, England

期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）

ISSN：

年卷期： 2025 年 16 卷 1 期

页码：

收录情况： SCI

摘要： Agricultural soils contribute similar to 52% of global anthropogenic nitrous oxide (N2O) emissions, predominantly from nitrogen (N) fertilizer use. Global N2O emission factors (EFs), estimated using IPCC Tier 1 methodologies, largely rely on short-term field measurements that ignore legacy effects of historic N fertilization. Here we show, through data synthesis and experiments, that EFs increase over time. Historic N addition increases soil N availability, lowers soil pH, and stimulates the abundance of N2O producing microorganisms and N2O emissions in control plots, causing underestimates of EFs in short-term experiments. Accounting for this legacy effect, we estimate that global EFs and annual fertilizer-induced N2O emissions of cropland are 1.9% and 2.1 Tg N2O-N yr(-1), respectively, both similar to 110% higher than IPCC estimates. Our findings highlight the significance of legacy effects on N2O emissions, emphasize the importance of long-term experiments for accurate N2O emission estimates, and underscore the need for mitigation practices to reduce N2O emissions.