Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aab63c |
Nitrous oxide emissions could reduce the blue carbon value of marshes on eutrophic estuaries | |
Roughan, Brittney L.1; Kellman, Lisa1; Smith, Erin2; Chmura, Gail L.3 | |
2018-04-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | The supply of nitrogen to ecosystems has surpassed the Earth's Planetary Boundary and its input to the marine environment has caused estuarine waters to become eutrophic. Excessive supply of nitrogen to salt marshes has been associated with shifts in species' distribution and production, as well as marsh degradation and loss. Our study of salt marshes in agriculturally intensive watersheds shows that coastal eutrophication can have an additional impact. We measured gas fluxes from marsh soils and verified emissions of nitrous oxide (N2O) in nitrogen-loaded marshes while the reference marsh was a sink for this gas. Salt marsh soils are extremely efficient carbon sinks, but emissions of N2O, a greenhouse gas 298 times more potent than CO2, reduces the value of the carbon sink, and in some marshes, may counterbalance any value of stored carbon towards mitigation of climate change. Although more research is merited on the nitrogen transformations and carbon storage in eutrophic marshes, the possibility of significant N2O emissions should be considered when evaluating the market value of carbon in salt marshes subject to high levels of nitrogen loading. |
英文关键词 | nitrous oxide salt marsh blue carbon nutrient runoff agriculture Prince Edward Island |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430334200001 |
WOS关键词 | SALT-MARSH ; SPARTINA-ALTERNIFLORA ; FLUXES ; N2O ; METHANE ; WETLAND ; GULF |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32076 |
专题 | 气候变化 |
作者单位 | 1.St Francis Xavier Univ, Dept Earth Sci, Antigonish, NS B2G 2W5, Canada; 2.Agr & Agri Food Canada, Sci & Technol Branch, Truro, NS B2N 2T6, Canada; 3.McGill Univ, Dept Geog, Montreal, PQ H3A 0B9, Canada |
推荐引用方式 GB/T 7714 | Roughan, Brittney L.,Kellman, Lisa,Smith, Erin,et al. Nitrous oxide emissions could reduce the blue carbon value of marshes on eutrophic estuaries[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(4). |
APA | Roughan, Brittney L.,Kellman, Lisa,Smith, Erin,&Chmura, Gail L..(2018).Nitrous oxide emissions could reduce the blue carbon value of marshes on eutrophic estuaries.ENVIRONMENTAL RESEARCH LETTERS,13(4). |
MLA | Roughan, Brittney L.,et al."Nitrous oxide emissions could reduce the blue carbon value of marshes on eutrophic estuaries".ENVIRONMENTAL RESEARCH LETTERS 13.4(2018). |
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