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| DOI | 10.1021/acs.est.4c02229 |
| High-Resolution Estimates of N2O Emissions from Inland Waters and Wetlands in China | |
| 发表日期 | 2024 |
| ISSN | 0013-936X |
| EISSN | 1520-5851 |
| 起始页码 | 58 |
| 结束页码 | 20 |
| 卷号 | 58期号:20 |
| 英文摘要 | Inland waters (rivers, lakes, and reservoirs) and wetlands (marshes and coastal wetlands) represent large and continuous sources of nitrous oxide (N2O) emissions, in view of adequate biomass and anaerobic conditions. Considerable uncertainties remain in quantifying spatially explicit N2O emissions from aquatic systems, attributable to the limitations of models and a lack of comprehensive data sets. Herein, we conducted a synthesis of 1659 observations of N2O emission rates to determine the major environmental drivers across five aquatic systems. A framework for spatially explicit estimates of N2O emissions in China was established, employing a data-driven approach that upscaled from site-specific N2O fluxes to robust multiple-regression models. Results revealed the effectiveness of models incorporating soil organic carbon and water content for marshes and coastal wetlands, as well as water nitrate concentration and dissolved organic carbon for lakes, rivers, and reservoirs for predicting emissions. Total national N2O emissions from inland waters and wetlands were 1.02 x 10(5) t N2O yr(-1), with contributions from marshes (36.33%), rivers (27.77%), lakes (25.27%), reservoirs (6.47%), and coastal wetlands (4.16%). Spatially, larger emissions occurred in the Songliao River Basin and Continental River Basin, primarily due to their substantial terrestrial biomass. This study offers a vital national inventory of N2O emissions from inland waters and wetlands in China, providing paradigms for the inventorying work in other countries and insights to formulate effective mitigation strategies for climate change. |
| 英文关键词 | nitrous oxide; inland waters; wetlands; inventory; spatially explicit; environmental drivers; multiple-regression models |
| 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:001224839800001 |
| 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/288720 |
| 作者单位 | Jilin University; Beijing Normal University; Jilin University; University of London; University College London |
| 推荐引用方式 GB/T 7714 | . High-Resolution Estimates of N2O Emissions from Inland Waters and Wetlands in China[J],2024,58(20). |
| APA | (2024).High-Resolution Estimates of N2O Emissions from Inland Waters and Wetlands in China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,58(20). |
| MLA | "High-Resolution Estimates of N2O Emissions from Inland Waters and Wetlands in China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 58.20(2024). |
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