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| DOI | 10.1021/acs.est.3c07882 |
| Role of n-DAMO in Mitigating Methane Emissions from Intertidal Wetlands Is Regulated by Saltmarsh Vegetations | |
| 发表日期 | 2024 |
| ISSN | 0013-936X |
| EISSN | 1520-5851 |
| 起始页码 | 58 |
| 结束页码 | 2 |
| 卷号 | 58期号:2 |
| 英文摘要 | Coastal wetlands are hotspots for methane (CH4) production, reducing their potential for global warming mitigation. Nitrite/nitrate-dependent anaerobic methane oxidation (n-DAMO) plays a crucial role in bridging carbon and nitrogen cycles, contributing significantly to CH4 consumption. However, the role of n-DAMO in reducing CH4 emissions in coastal wetlands is poorly understood. Here, the ecological functions of the n-DAMO process in different saltmarsh vegetation habitats as well as bare mudflats were quantified, and the underlying microbial mechanisms were explored. Results showed that n-DAMO rates were significantly higher in vegetated habitats (Scirpus mariqueter and Spartina alterniflora) than those in bare mudflats (P < 0.05), leading to an enhanced contribution to CH4 consumption. Compared with other habitats, the contribution of n-DAMO to the total anaerobic CH4 oxidation was significantly lower in the Phragmites australis wetland (15.0%), where the anaerobic CH4 oxidation was primarily driven by ferric iron (Fe3+). Genetic and statistical analyses suggested that the different roles of n-DAMO in various saltmarsh wetlands may be related to divergent n-DAMO microbial communities as well as environmental parameters such as sediment pH and total organic carbon. This study provides an important scientific basis for a more accurate estimation of the role of coastal wetlands in mitigating climate change. |
| 英文关键词 | nitrite/nitrate-dependent anaerobic methane oxidation(n-DAMO); methane; nitrogen; salt-marshvegetations; coastal wetlands |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:001144031400001 |
| 来源期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297299 |
| 作者单位 | East China Normal University; East China Normal University; East China Normal University; Ministry of Natural Resources of the People's Republic of China |
| 推荐引用方式 GB/T 7714 | . Role of n-DAMO in Mitigating Methane Emissions from Intertidal Wetlands Is Regulated by Saltmarsh Vegetations[J],2024,58(2). |
| APA | (2024).Role of n-DAMO in Mitigating Methane Emissions from Intertidal Wetlands Is Regulated by Saltmarsh Vegetations.ENVIRONMENTAL SCIENCE & TECHNOLOGY,58(2). |
| MLA | "Role of n-DAMO in Mitigating Methane Emissions from Intertidal Wetlands Is Regulated by Saltmarsh Vegetations".ENVIRONMENTAL SCIENCE & TECHNOLOGY 58.2(2024). |
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