Temporal variations of S13C-CH4 in rice paddies dominated by the plant-mediated pathway
文献类型：期刊论文
| 作者 | Li, Ji5,11,12; Chen, Huilin5,11,12; Ding, Aijun5,11,12; Chi, Xuguang5,11; Ju, Weimin13; Zhang, Yongguang1,13; Ciais, Philippe6,10; Yuan, Wenping2; Peng, Shushi2,3; Ma, Zeqing4 |
| 刊名 | ISCIENCE
 |
| 出版日期 | 2025-07-18 |
| 卷号 | 28期号:7页码:112886 |
| DOI | 10.1016/j.isci.2025.112886 |
| 产权排序 | 10 |
| 文献子类 | Article |
| 英文摘要 | The stable carbon isotope signature of methane (S13C-CH4) helps constrain CH4 emissions on regional to global scales, yet observations in rice paddies remain limited. The temporal dynamics of S13C-CH4 and its drivers in rice paddies are still not fully understood. Here, we conducted continuous in situ observations of CH4 and S13C-CH4 at three canopy heights throughout a rice growing season. We investigated the emission source signature (S13Csource) and partitioned it into plant-mediated (S13CP) and non-plant-mediated (S13CNP) pathways. S13Csource exhibited significant temporal and vertical variability, influenced by transport pathways and external sources. We found that temporal variations in S13Csource were strongly correlated with rice photosynthesis and predominantly driven by S13CP. Our results show that plant-mediated transport, rather than CH4 production, dominates S13Csourcevariability. These findings provide new insight into the S13Csource dynamics in rice paddies and will be crucial for improving regional-to-global estimates of CH4 fluxes from rice agriculture. |
| URL标识 | 查看原文 |
| WOS关键词 | STABLE CARBON ISOTOPES ; METHANE EMISSION ; GLOBAL INVENTORY ; GAS-TRANSPORT ; CH4 EMISSION ; FOSSIL-FUEL ; FIELDS ; CO2 ; QUANTIFICATION ; PHOTOSYNTHATES |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001527028400001 |
| 出版者 | CELL PRESS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215315]  |
| 专题 | 千烟洲站森林生态系统研究中心_外文论文 |
| 通讯作者 | Chen, Huilin |
| 作者单位 | 1.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Jiangsu, Peoples R China; 2.Peking Univ, Inst Carbon Neutral, Sino French Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing, Peoples R China; 3.Peking Univ, Lab Earth Surface Proc, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; 5.Jiangsu Prov Collaborat Innovat Ctr Climate Change, Nanjing, Peoples R China; 6.Cyprus Inst, Climate & Atmosphere Res Ctr CARE C, Nicosia, Cyprus; 7.Univ Toronto, Dept Geog & Planning, Toronto, ON M5S 3G3, Canada 8.Fujian Normal Univ, Sch Geog Sci, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou 350008, Peoples R China; 9.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; 10.Univ Paris Saclay, Lab Sci Climat & Environm, LSCE, IPSL,CEA,CNRS,UVS, Gif Sur Yvette, France; |
| 推荐引用方式 GB/T 7714 | Li, Ji,Chen, Huilin,Ding, Aijun,et al. Temporal variations of S13C-CH4 in rice paddies dominated by the plant-mediated pathway[J]. ISCIENCE,2025,28(7):112886. |
| APA | Li, Ji.,Chen, Huilin.,Ding, Aijun.,Chi, Xuguang.,Ju, Weimin.,...&Chen, Jing M..(2025).Temporal variations of S13C-CH4 in rice paddies dominated by the plant-mediated pathway.ISCIENCE,28(7),112886. |
| MLA | Li, Ji,et al."Temporal variations of S13C-CH4 in rice paddies dominated by the plant-mediated pathway".ISCIENCE 28.7(2025):112886. |
入库方式： OAI收割
来源：地理科学与资源研究所
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