Analysis of methane emission characteristics and environmental response in natural wetlands
文献类型：期刊论文
| 作者 | Li, Jinshuai1,2; Hao, Tianxiang2; Yang, Meng1,2; Chen, Zhi1,2; Yu, Guirui1,2 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 334页码:120696 |
| 关键词 | Methane Wetlands Vegetation type Environmental response Eddy covariance |
| DOI | 10.1016/j.atmosenv.2024.120696 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Wetlands are the most important natural source of methane (CH4) emissions. Apparent wetland CH4 emissions depend largely on the balance between CH4 production and oxidation. Wetland plants play an important role in all processes. However, direct observations and side-by-side comparisons of CH4 emissions from wetlands with different vegetation types are lacking at the global scale. There is still a lack of clarity in characterizing the environmental response to CH4 emissions from wetlands with different vegetation types. Based on the FLUXNETCH4 dataset and the Global Standard Soil Database, we analyzed the environmental response characteristics of CH4 emissions and clarified the important role of plants in CH4 emissions. We categorized wetlands into vascular plant wetlands (VPWs) and moss plant wetlands (MPWs). VPWs CH4 emissions were typically higher and more heterogeneous, whereas MPWs CH4 emissions were lower and less variable. When the water table is below the surface, VPWs still have high CH4 emission rates, while MPWs have CH4 emission rates close to zero. In addition, the temperature sensitivity of CH4 emissions from VPWs (Q10 = 2.26) is significantly higher than that of MPWs (Q10 = 1.71). Solar radiation was the main factor affecting CH4 emissions from VPWs, and temperature was the main factor affecting CH4 emissions from MPWs. Finally, our results of structural equation model suggested that soil and water environment, temperature, and plants all contribute to wetland CH4 emissions to varying degrees. These findings highlight the important role of wetland vegetation in CH4 emissions, which should be seriously considered to reduce uncertainty in the assessment of wetland CH4 emissions. |
| WOS关键词 | CH4 EXCHANGE ; WATER-TABLE ; TEMPERATURE SENSITIVITY ; NORTHERN ; TUNDRA ; FLUXES ; CARBON ; CO2 ; RESPIRATION ; VARIABILITY |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001275678200001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206033]  |
| 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; Yang, Meng |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jinshuai,Hao, Tianxiang,Yang, Meng,et al. Analysis of methane emission characteristics and environmental response in natural wetlands[J]. ATMOSPHERIC ENVIRONMENT,2024,334:120696. |
| APA | Li, Jinshuai,Hao, Tianxiang,Yang, Meng,Chen, Zhi,&Yu, Guirui.(2024).Analysis of methane emission characteristics and environmental response in natural wetlands.ATMOSPHERIC ENVIRONMENT,334,120696. |
| MLA | Li, Jinshuai,et al."Analysis of methane emission characteristics and environmental response in natural wetlands".ATMOSPHERIC ENVIRONMENT 334(2024):120696. |
入库方式： OAI收割
来源：地理科学与资源研究所
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