An Outsized Contribution of Rivers to Carbon Emissions From Interconnected Urban River-Lake Networks Within Plains
文献类型：期刊论文
| 作者 | Liu, Boyi3; Zhang, Runyu3; Zhu, Lin3; Wang, Jun2 ; Qin, Boqiang1; Shi, Wenqing3
|
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2024-05-16 |
| 卷号 | 51期号:9页码:9 |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2023GL107250 |
| 通讯作者 | Shi, Wenqing(wqshi@nuist.edu.cn) |
| 英文摘要 | Urban aquatic ecosystems in plains are often subject to extensive anthropogenic pollutant inputs and have prolonged times for pollutant degradation, potentially leading to diverse carbon emission patterns. This study explored carbon emission patterns and underlying mechanisms in Ge Lake and its tributaries, located in an urban area within a plain in China. The results revealed that carbon emissions from rivers were significantly higher than those from the downstream lake. Spatial interpolation analysis further revealed that CO2-eq emissions from a 1-km2 river area can be equivalent to those from an area as large as 86-km2 of the downstream lake. Rivers are the gateway for the entry of organic compounds, often carrying substances that are readily biodegradable. As the river water moves slowly, these compounds accumulate and undergo degradation in rivers before they reach downstream lakes. The findings may benefit the estimates of carbon emissions in these regions with greater precision. Carbon dioxide (CO2) and methane (CH4) are the two most important greenhouse gases. Inland waters are hotspots of CO2 and CH4 emissions, greatly contributing to atmospheric levels. This study investigated the patterns of CO2 and CH4 emissions from aquatic ecosystems within plains, known for high pollutant loads and extended residence times. The results revealed that CO2 and CH4 emissions from rivers were significantly higher than those from the downstream receiving lake, exhibiting a decrease along the river flow direction. Rivers serve as the gateway for the entry of pollutants to aquatic environments, often carrying substances that are readily biodegradable. As the river water moves slowly, these compounds accumulate and undergo degradation in rivers before they reach downstream lakes, and therefore, CO2 and CH4 emissions diminish in the downstream direction. The findings add the understanding of carbon emissions in plain aquatic ecosystems, and benefit their estimates in these regions with greater precision. Carbon emissions from urban rivers were higher than the downstream receiving lake Carbon emissions exhibited a decreasing trend along the river flow direction Urban rivers warrant more attention in regional estimates of carbon emissions |
| WOS关键词 | ORGANIC-MATTER ; RESIDENCE TIME ; BOREAL LAKES ; WIND-SPEED ; METHANE ; WATER ; DIOXIDE ; TRANSPORT ; DYNAMICS ; FATE |
| 资助项目 | National Natural Science Foundation of China ; Starting Research Fund of Nanjing University of Information Engineering[2021r097] ; [42277060] ; [BK20220041] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001209366400001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China ; Starting Research Fund of Nanjing University of Information Engineering |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/43678]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Shi, Wenqing |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Taihu Lake Lab Ecosyst Stn, Nanjing, Peoples R China 2.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Sch Environm Sci & Engn, Jiangsu Key Lab Atmospher Environm Monitoring & Po, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Boyi,Zhang, Runyu,Zhu, Lin,et al. An Outsized Contribution of Rivers to Carbon Emissions From Interconnected Urban River-Lake Networks Within Plains[J]. GEOPHYSICAL RESEARCH LETTERS,2024,51(9):9. |
| APA | Liu, Boyi,Zhang, Runyu,Zhu, Lin,Wang, Jun,Qin, Boqiang,&Shi, Wenqing.(2024).An Outsized Contribution of Rivers to Carbon Emissions From Interconnected Urban River-Lake Networks Within Plains.GEOPHYSICAL RESEARCH LETTERS,51(9),9. |
| MLA | Liu, Boyi,et al."An Outsized Contribution of Rivers to Carbon Emissions From Interconnected Urban River-Lake Networks Within Plains".GEOPHYSICAL RESEARCH LETTERS 51.9(2024):9. |
入库方式： OAI收割
来源：南京地质古生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。